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Version 152.1 by Karry Zhuang on 2024/07/25 14:42
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8 **Table of Contents:**
9
10 {{toc/}}
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18
19
20 = 1. Introduction =
21
22 == 1.1 Overview ==
23
24
25 (((
26 Dragino LoRaWAN water quality sensor series products are designed to measure water quality and provide information for water quality conditions. They consist of a (% style="color:blue" %)**main process device (WQS-LB) and various sensors**.
27 )))
28
29 (((
30 The sensors include various type such as: (% style="color:blue" %)**pH sensor, ORP sensor, EC sensor, dissolved oxygen sensor, turbidity sensor.**(%%)
31 )))
32
33 (((
34 Main process device WQS-LB is an outdoor LoRaWAN RS485 end node.It is powered by a built-in lithium-ion battery. WQS-LB reads value from various sensors and upload these sensor data to IoT server via LoRaWAN wireless protocol.
35 )))
36
37 (((
38 WQS-LB is full compatible with(% style="color:blue" %)** LoRaWAN Class C protocol**(%%), it can work with standard LoRaWAN gateway.
39 )))
40
41
42 = 2. How to use =
43
44 == 2.1 Installation ==
45
46
47 Below is an installation example for the weather station. Field installation example can be found at [[Appendix I: Field Installation Photo.>>||anchor="H11.AppendixI:FieldInstallationPhoto"]] 
48
49
50 [[image:1656041948552-849.png]]
51
52
53
54
55
56 == 2.2 How it works? ==
57
58
59 (((
60 Each WQS-LB is shipped with a worldwide unique set of OTAA keys. To use WQS-LB in a LoRaWAN network, user needs to input the OTAA keys in LoRaWAN network server. After finish installation as above. Create WQS-LB in your LoRaWAN server and Power on WQS-LB , it can join the LoRaWAN network and start to transmit sensor data. The default period for each uplink is 20 minutes.
61 )))
62
63 (((
64 Open WQS-LB and put the yellow jumper as below position to power on WQS-LB.
65 )))
66
67 [[image:image-20240715164447-1.png]]
68
69
70 (% style="color:red" %)**Notice:**(%%) WQS-LB will auto scan available water quality sensors  when power on or reboot.
71
72 == 2.3 Example to use for LoRaWAN network ==
73
74
75 This section shows an example for how to join the TTN V3 LoRaWAN IoT server. Usages with other LoRaWAN IoT servers are of similar procedure.
76
77 [[image:1656042612899-422.png]]
78
79
80 Assume the DLOS8 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. We need to add the WSC1-L device in TTN V3:
81
82
83 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from WSC1-L.
84
85 Each WSC1-L is shipped with a sticker with the default device EUI as below:
86
87 [[image:image-20230426084533-1.png||height="231" width="497"]]
88
89
90 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
91
92
93 **Add APP EUI in the application.**
94
95 [[image:1656042662694-311.png]]
96
97 [[image:1656042673910-429.png]]
98
99
100 **Choose Manually to add WQS-LB**
101
102 [[image:1656042695755-103.png]]
103
104
105 **Add APP KEY and DEV EUI**
106
107 [[image:1656042723199-746.png]]
108
109
110 (((
111 (% style="color:blue" %)**Step 2**(%%): Power on WQS-LB, it will start to join TTN server. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
112 )))
113
114 [[image:1656042745346-283.png]]
115
116
117 == 2.4 Uplink Payload ==
118
119
120 Uplink payloads include two types: Valid Sensor Value and other status / control command.
121
122 * Valid Sensor Value: Use FPORT=2
123 * Other control command: Use FPORT other than 2.
124
125 === 2.4.1 Uplink FPORT~=5, Device Status ===
126
127
128 Uplink the device configures with FPORT=5. Once WQS-LB Joined the network, it will uplink this message to the server. After first uplink, WQS-LB will uplink Device Status every 12 hours
129
130
131 (((
132 User can also use downlink command**(0x2301)** to ask WQS-LB to resend this uplink
133 )))
134
135 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
136 |=(% style="width: 70px;background-color:#4F81BD;color:white" %)**Size(**bytes)|=(% style="width: 60px;background-color:#4F81BD;color:white" %)1|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**
137 |(% style="width:99px" %)Value|(% style="width:112px" %)[[Sensor Model>>||anchor="HSensorModel:"]]|(% style="width:135px" %)[[Firmware Version>>||anchor="HFirmwareVersion:"]]|(% style="width:126px" %)[[Frequency Band>>||anchor="HFrequencyBand:"]]|(% style="width:85px" %)[[Sub-band>>||anchor="HSub-Band:"]]|(% style="width:46px" %)[[BAT>>||anchor="HBAT:"]]
138
139 [[image:1656043061044-343.png]]
140
141
142 Example Payload (FPort=5):  [[image:image-20220624101005-1.png]]
143
144
145 ==== (% style="color:#037691" %)**Sensor Model:**(%%) ====
146
147 For WQS-L, this value is 0x3C.
148
149
150 ==== (% style="color:#037691" %)**Firmware Version:**(%%) ====
151
152 0x0100, Means: v1.0.0 version.
153
154
155 ==== (% style="color:#037691" %)**Frequency Band:**(%%) ====
156
157 0x01: EU868
158
159 0x02: US915
160
161 0x03: IN865
162
163 0x04: AU915
164
165 0x05: KZ865
166
167 0x06: RU864
168
169 0x07: AS923
170
171 0x08: AS923-1
172
173 0x09: AS923-2
174
175 0x0a: AS923-3
176
177 0x0b: CN470
178
179 0x0c: EU433
180
181 0x0d: KR920
182
183 0x0e: MA869
184
185
186 ==== (% style="color:#037691" %)**Sub-Band:**(%%) ====
187
188 value 0x00 ~~ 0x08(only for CN470, AU915,US915. Others are0x00)
189
190
191 ==== (% style="color:#037691" %)**BAT:**(%%) ====
192
193 (((
194 shows the battery voltage for WQS-LB MCU.
195 )))
196
197 (((
198 Ex1: 0x0BD6/1000 = 3.03 V
199 )))
200
201
202 === 2.4.2 Uplink FPORT~=2, Real time sensor value ===
203
204
205 (((
206 WQS-LB will send this uplink after Device Config uplink once join LoRaWAN network successfully. And it will periodically send this uplink. Default interval is 20 minutes and [[can be changed>>||anchor="H3.1SetTransmitIntervalTime"]].
207 )))
208
209 (((
210 Uplink uses FPORT=2 and every 20 minutes send one uplink by default.
211 )))
212
213 (((
214 The upload length is dynamic, depends on what type of weather sensors are connected. The uplink payload is combined with sensor segments. As below:
215 )))
216
217
218 (% style="color:#4472c4" %)** Uplink Payload**:
219
220 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:464px" %)
221 |(% style="width:140px" %)Sensor Segment 1|(% style="width:139px" %)Sensor Segment 2|(% style="width:42px" %)……|(% style="width:140px" %)Sensor Segment n
222
223 (% style="color:#4472c4" %)** Sensor Segment Define**:
224
225 (% border="1" cellspacing="10" style="background-color:#f2f2f2; width:330px" %)
226 |(% style="width:89px" %)Type Code|(% style="width:114px" %)Length (Bytes)|(% style="width:124px" %)Measured Value
227
228 (% style="color:#4472c4" %)**Sensor Type Table:**
229
230 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
231 |(% style="background-color:#4f81bd; color:white; width:118px" %)**Sensor Type**|(% style="background-color:#4f81bd; color:white; width:38px" %)**Type Code**|(% style="background-color:#4f81bd; color:white; width:83px" %)**Range**|(% style="background-color:#4f81bd; color:white; width:72px" %)**Length( Bytes)**|(% style="background-color:#4f81bd; color:white; width:146px" %)**Example**
232 |(% style="width:118px" %)PH Sensor|(% style="width:38px" %)0x10|(% style="width:83px" %)(((
233 Range: 0~~14.00pH
234
235 resolution: 0.01pH
236 )))|(% style="width:72px" %)0x02 |(% style="width:146px" %)(((
237 (((
238 0x0024/10=3.6m/s (0x02FE: No Sensor, 0x02EE: Value Error)
239 )))
240
241 (((
242 0x02=2 (0x14: No Sensor, 0x15: Value Error)
243 )))
244 )))
245 |(% style="width:118px" %)EC K1 Sensor|(% style="width:38px" %)0x11|(% style="width:83px" %)(((
246 Range :
247
248 2 ~~ 2,000 μS/cm  Resolution: 1 μS/cm
249 )))|(% style="width:72px" %)0x02|(% style="width:146px" %)(((
250 (((
251 0x02C9/10=66.6°(0x0EFE: No Sensor,0x0EFF: Value Error)
252 )))
253
254 (((
255 0X03=3(ENE) (0x14: No Sensor,0x15: Value Error)
256 )))
257 )))
258 |(% style="width:118px" %)EC K10 Sensor|(% style="width:38px" %)0x12|(% style="width:83px" %)Range : 20 ~~ 20,000 μS/cm  Resolution: 10 μS/cm|(% style="width:72px" %)0x02|(% style="width:146px" %)(((
259 0x04D2*10=12340kLux (0x4EFE: No Sensor,0x4EFF: Value Error)
260 )))
261 |(% style="width:118px" %)ORP1 Sensor|(% style="width:38px" %)0x13|(% style="width:83px" %)Range :** **-1999~~1999mV|(% style="width:72px" %)0x02|(% style="width:146px" %)(((
262 (((
263 0x00 (00) No Rain or snow detected
264 )))
265
266 (((
267 (0x02: No Sensor,0x03: Value Error)
268 )))
269 )))
270 |(% style="width:118px" %)DO1 Sensor|(% style="width:38px" %)0x14|(% style="width:83px" %)Range: 0-20mg/L|(% style="width:72px" %)0x02|(% style="width:146px" %)(((
271 0x0378=888ppm (0x14FE: No Sensor,0x14FF: Value Error)
272 )))
273 |(% style="width:118px" %)TS1 Sensor|(% style="width:38px" %)0x15|(% style="width:83px" %)Range: 0.1～1000.0NTU|(% style="width:72px" %)0x02|(% style="width:146px" %)(((
274 0xFFDD/10=-3.5℃ (0x02FE: No Sensor,0x02FF: Value Error)
275 )))
276
277 (((
278 Below is an example payload:  [[image:image-20220624140615-3.png]]
279 )))
280
281
282 (((
283 When sending this payload to LoRaWAN server. WQS-LB will send this in one uplink or several uplinks according to LoRaWAN spec requirement. For example, total length of Payload is 54 bytes.
284 )))
285
286 * (((
287 When WQS-LB sending in US915 frequency DR0 data rate. Because this data rate has limitation of 11 bytes payload for each uplink. The payload will be split into below packets and uplink.
288 )))
289
290 (((
291 Uplink 1:  [[image:image-20220624140735-4.png]]
292 )))
293
294
295 (((
296 Uplink 2:  [[image:image-20220624140842-5.png]]
297
298 )))
299
300 * (((
301 When WQS-LB sending in EU868 frequency DR0 data rate. The payload will be split into below packets and uplink:
302 )))
303
304 (((
305 Uplink 1:  [[image:image-20220624141025-6.png]]
306 )))
307
308
309 Uplink 2:  [[image:image-20220624141100-7.png]]
310
311
312 === 2.4.3 Decoder in TTN V3 ===
313
314
315 (((
316 In LoRaWAN platform, user only see HEX payload by default, user needs to use payload formatters to decode the payload to see human-readable value.
317 )))
318
319 (((
320 Download decoder for suitable platform from:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
321 )))
322
323 (((
324 and put as below:
325 )))
326
327 [[image:1656051152438-578.png]]
328
329
330 == 2.5 Show data on Application Server ==
331
332
333 (((
334 Application platform provides a human friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
335 )))
336
337 (((
338 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
339 )))
340
341 (((
342 (% style="color:blue" %)**Step 2**(%%): Configure your Application to forward data to Datacake you will need to add integration. Go to TTN V3 Console ~-~-> Applications ~-~-> Integrations ~-~-> Add Integrations.
343 )))
344
345 [[image:1656051197172-131.png]]
346
347
348 **Add TagoIO:**
349
350 [[image:1656051223585-631.png]]
351
352
353 **Authorization:**
354
355 [[image:1656051248318-368.png]]
356
357
358 In TagoIO console ([[https:~~/~~/admin.tago.io~~/~~/>>url:https://datacake.co/]]) , add WSC1-L:
359
360 [[image:1656051277767-168.png]]
361
362
363 = 3. Configure WQS-LB via AT Command or LoRaWAN Downlink =
364
365
366 Use can configure WQS-LB via AT Command or LoRaWAN Downlink.
367
368 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
369 * LoRaWAN Downlink instruction for different platforms:  [[Use Note for Server>>doc:Main.WebHome]](IoT LoRaWAN Server)
370
371 There are two kinds of commands to configure WQS-LB, they are:
372
373 * (% style="color:blue" %)**General Commands**.
374
375 These commands are to configure:
376
377 * General system settings like: uplink interval.
378 * LoRaWAN protocol & radio related command.
379
380 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack((% style="color:red" %)Note~*~*)(%%). These commands can be found on the wiki:  [[End Device Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
381
382 (% style="color:red" %)**Note~*~*: Please check early user manual if you don’t have v1.8.0 firmware. **
383
384
385 * (% style="color:blue" %)**Commands special design for WQS-LB**
386
387 These commands only valid for WQS-LB, as below:
388
389
390 == 3.1 Set Transmit Interval Time ==
391
392
393 Feature: Change LoRaWAN End Node Transmit Interval.
394
395 (% style="color:#037691" %)**AT Command: AT+TDC**
396
397 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:501px" %)
398 |(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:166px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:180px" %)**Response**
399 |(% style="width:155px" %)AT+TDC=?|(% style="width:162px" %)Show current transmit Interval|(% style="width:177px" %)(((
400 30000
401 OK
402 the interval is 30000ms = 30s
403 )))
404 |(% style="width:155px" %)AT+TDC=60000|(% style="width:162px" %)Set Transmit Interval|(% style="width:177px" %)(((
405 OK
406 Set transmit interval to 60000ms = 60 seconds
407 )))
408
409 (% style="color:#037691" %)**Downlink Command: 0x01**
410
411 Format: Command Code (0x01) followed by 3 bytes time value.
412
413 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
414
415 * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
416 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
417
418 == 3.2 Set Emergency Mode ==
419
420
421 Feature: In emergency mode, WSC1-L will uplink data every 1 minute.
422
423 (% style="color:#037691" %)**AT Command:**
424
425 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:466px" %)
426 |(% style="background-color:#4f81bd; color:white; width:156px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:225px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:85px" %)**Response**
427 |(% style="width:155px" %)AT+ALARMMOD=1|(% style="width:224px" %)Enter emergency mode. Uplink every 1 minute|(% style="width:84px" %)(((
428 OK
429
430 )))
431 |(% style="width:155px" %)AT+ALARMMOD=0|(% style="width:224px" %)Exit emergency mode. Uplink base on TDC time|(% style="width:84px" %)(((
432 OK
433 )))
434
435 (% style="color:#037691" %)**Downlink Command:**
436
437 * 0xE101     Same as: AT+ALARMMOD=1
438 * 0xE100     Same as: AT+ALARMMOD=0
439
440 == 3.3 Add or Delete RS485 Sensor ==
441
442
443 (((
444 Feature: User can add or delete 3^^rd^^ party sensor as long they are RS485/Modbus interface,baud rate support 9600.Maximum can add 4 sensors.
445 )))
446
447 (((
448 (% style="color:#037691" %)**AT Command: **
449 )))
450
451 (((
452 (% style="color:blue" %)**AT+DYSENSOR=Type_Code, Query_Length, Query_Command , Read_Length , Valid_Data ,has_CRC,timeout**
453 )))
454
455 * (((
456 Type_Code range:  A1 ~~ A4
457 )))
458 * (((
459 Query_Length:  RS485 Query frame length, Value cannot be greater than 10
460 )))
461 * (((
462 Query_Command:  RS485 Query frame data to be sent to sensor, cannot be larger than 10 bytes
463 )))
464 * (((
465 Read_Length:  RS485 response frame length supposed to receive. Max can receive
466 )))
467 * (((
468 Valid_Data:  valid data from RS485 Response, Valid Data will be added to Payload and upload via LoRaWAN.
469 )))
470 * (((
471 has_CRC:  RS485 Response crc check  (0: no verification required 1: verification required). If CRC=1 and CRC error, valid data will be set to 0.
472 )))
473 * (((
474 timeout:  RS485 receive timeout (uint:ms). Device will close receive window after timeout
475 )))
476
477 (((
478 **Example:**
479 )))
480
481 (((
482 User need to change external sensor use the type code as address code.
483 )))
484
485 (((
486 With a 485 sensor, after correctly changing the address code to A1, the RS485 query frame is shown in the following table:
487 )))
488
489 [[image:image-20220624143553-10.png]]
490
491
492 The response frame of the sensor is as follows:
493
494 [[image:image-20220624143618-11.png]]
495
496
497 **Then the following parameters should be:**
498
499 * Address_Code range: A1
500 * Query_Length: 8
501 * Query_Command: A103000000019CAA
502 * Read_Length: 8
503 * Valid_Data: 23 (Indicates that the data length is 2 bytes, starting from the 3th byte)
504 * has_CRC: 1
505 * timeout: 1500 (Fill in the test according to the actual situation)
506
507 **So the input command is:**
508
509 AT+DYSENSOR=A1,8,A103000000019CAA,8,24,1,1500
510
511
512 In every sampling. WSC1-L will auto append the sensor segment as per this structure and uplink.
513
514 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:351px" %)
515 |=(% style="width: 95px;background-color:#4F81BD;color:white" %)Type Code|=(% style="width: 122px;background-color:#4F81BD;color:white" %)Length (Bytes)|=(% style="width: 134px;background-color:#4F81BD;color:white" %)Measured Value
516 |(% style="width:94px" %)A1|(% style="width:121px" %)2|(% style="width:132px" %)0x000A
517
518 **Related commands:**
519
520 AT+DYSENSOR=A1,0  ~-~->  Delete 3^^rd^^ party sensor A1.
521
522 AT+DYSENSOR  ~-~->  List All 3^^rd^^ Party Sensor. Like below:
523
524
525 (% style="color:#037691" %)**Downlink Command:  **
526
527 **delete custom sensor A1:**
528
529 * 0xE5A1     Same as: AT+DYSENSOR=A1,0
530
531 **Remove all custom sensors**
532
533 * 0xE5FF  
534
535 == 3.4 RS485 Test Command ==
536
537
538 (% style="color:#037691" %)**AT Command:**
539
540 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:494px" %)
541 |=(% style="width: 160px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 248px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 86px;background-color:#4F81BD;color:white" %)**Response**
542 |(% style="width:159px" %)AT+RSWRITE=xxxxxx|(% style="width:227px" %)(((
543 Send command to 485 sensor. Range : no more than 10 bytes
544 )))|(% style="width:85px" %)OK
545
546 Eg: Send command **01 03 00 00 00 01 84 0A** to 485 sensor
547
548 AT+RSWRITE=0103000001840A
549
550 If there is output from sensor, The console will show the output data
551
552
553 (% style="color:#037691" %)**Downlink Command:**
554
555 * 0xE20103000001840A     Same as: AT+RSWRITE=0103000001840A
556
557 == 3.5 RS485 response timeout ==
558
559
560 Feature: Set or get extended time to receive 485 sensor data.
561
562 (% style="color:#037691" %)**AT Command:**
563
564 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:433px" %)
565 |=(% style="width: 157px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 86px;background-color:#4F81BD;color:white" %)**Response**
566 |(% style="width:157px" %)AT+DTR=1000|(% style="width:188px" %)(((
567 Set response timeout to: Range : 0~~10000
568 )))|(% style="width:85px" %)OK
569
570 (% style="color:#037691" %)**Downlink Command:**
571
572 Format: Command Code (0xE0) followed by 3 bytes time value.
573
574 If the downlink payload=E0000005, it means set the END Node’s Transmit Interval to 0x000005=5(S), while type code is E0.
575
576 * Example 1: Downlink Payload: E0000005  ~/~/  Set Transmit Interval (DTR) = 5 seconds
577 * Example 2: Downlink Payload: E000000A  ~/~/  Set Transmit Interval (DTR) = 10 seconds
578
579 == 3.6 Set Sensor Type ==
580
581
582 (((
583 Feature: Set sensor in used. If there are 6 sensors, user can set to only send 5 sensors values.
584 )))
585
586 (((
587 See [[definition>>||anchor="HWeatherSensorTypes:"]] for the sensor type.
588
589 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:517px" %)
590 |(% rowspan="2" %)Byte3|Bit23|Bit22|Bit21|Bit20|Bit19|Bit18|Bit17|Bit16
591 | |A4|A3|A2|A1| | |
592 |(% rowspan="2" %)Byte2|Bit15|Bit14|Bit13|Bit12|Bit11|Bit10|Bit9|Bit8
593 | | |Solar Radiation|PAR|PM10|PM2.5|(((
594 Rain
595 Gauge
596 )))|(((
597 Air
598 Pressure
599 )))
600 |(% rowspan="2" %)Byte1|Bit7|Bit6|Bit5|Bit4|Bit3|Bit2|Bit1|Bit0
601 |Humidity|Temperature|CO2|(((
602 Rain/Snow
603 Detect
604 )))|illuminance|(((
605 Wind
606 Direction
607 )))|Wind Speed|BAT
608 )))
609
610
611 (% style="color:#037691" %)**AT Command:**
612
613 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:377px" %)
614 |=(% style="width: 157px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 132px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 88px;background-color:#4F81BD;color:white" %)**Response**
615 |(% style="width:157px" %)AT+STYPE=80221|(% style="width:130px" %)Set sensor types|(% style="width:87px" %)OK
616
617 Eg: The setting command **AT+STYPE=80221** means:
618
619 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:495px" %)
620 |(% rowspan="2" style="width:57px" %)Byte3|(% style="width:57px" %)Bit23|(% style="width:59px" %)Bit22|(% style="width:56px" %)Bit21|(% style="width:51px" %)Bit20|(% style="width:54px" %)Bit19|(% style="width:54px" %)Bit18|(% style="width:52px" %)Bit17|(% style="width:52px" %)Bit16
621 |(% style="width:57px" %)0|(% style="width:59px" %)0|(% style="width:56px" %)0|(% style="width:51px" %)0|(% style="width:54px" %)1|(% style="width:54px" %)0|(% style="width:52px" %)0|(% style="width:52px" %)0
622 |(% rowspan="2" style="width:57px" %)Byte2|(% style="width:57px" %)Bit15|(% style="width:59px" %)Bit14|(% style="width:56px" %)Bit13|(% style="width:51px" %)Bit12|(% style="width:54px" %)Bit11|(% style="width:54px" %)Bit10|(% style="width:52px" %)Bit9|(% style="width:52px" %)Bit8
623 |(% style="width:57px" %)0|(% style="width:59px" %)0|(% style="width:56px" %)0|(% style="width:51px" %)0|(% style="width:54px" %)0|(% style="width:54px" %)0|(% style="width:52px" %)1|(% style="width:52px" %)0
624 |(% rowspan="2" style="width:57px" %)Byte1|(% style="width:57px" %)Bit7|(% style="width:59px" %)Bit6|(% style="width:56px" %)Bit5|(% style="width:51px" %)Bit4|(% style="width:54px" %)Bit3|(% style="width:54px" %)Bit2|(% style="width:52px" %)Bit1|(% style="width:52px" %)Bit0
625 |(% style="width:57px" %)0|(% style="width:59px" %)0|(% style="width:56px" %)1|(% style="width:51px" %)0|(% style="width:54px" %)0|(% style="width:54px" %)0|(% style="width:52px" %)0|(% style="width:52px" %)1
626
627 So wsc1-L will upload the following data: Custom Sensor A1, Rain Gauge,CO2,BAT.
628
629
630 (% style="color:#037691" %)**Downlink Command:**
631
632 * 0xE400080221  Same as: AT+STYPE=80221
633
634 (% style="color:red" %)**Note:**
635
636 ~1. The sensor type will not be saved to flash, and the value will be updated every time the sensor is restarted or rescanned.
637
638
639 == 3.7  Set the registers read by the rain gauge(Since firmware V1.3) ==
640
641
642 (% style="color:#037691" %)**AT Command:**
643
644 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
645 |=(% style="width: 230px; background-color: rgb(79, 129, 189); color: white;" %)**Command Example**|=(% style="width: 232px; background-color: rgb(79, 129, 189); color: white;" %)**Function**|=(% style="width: 48px; background-color: rgb(79, 129, 189); color: white;" %)**Response**
646 |(% style="width:240px" %)(((
647 AT+RAINFALLSWITCH=10(Value:3,4,5,6,8,10)
648 )))|(% style="width:232px" %)(((
649 Set the registers read by the rain gauge
650 )))|(% style="width:38px" %)OK
651
652 (% style="color:#037691" %)**Downlink Command:**
653
654 * 0x1703  Same as: AT+RAINFALLSWITCH=3
655
656 Value Definition:
657
658 * **3**: The total rainfall after the sensor is powered on  (for example  Total rainfall: 166.5mm)
659 * **4**: Hourly rainfall: 0.2mm
660 * **5**: Rainfall in last hour: 0.2mm
661 * **6**: 24-hour maximum rainfall 10.0mm
662 * **8**: 24-hour minimum rainfall:0.0mm
663 * **10**: Rainfall in 24 hours: 8.0mm (Rainfall in the last 24 hours)
664
665 = 4. Power consumption and battery =
666
667 == 4.1 Total Power Consumption ==
668
669
670 Dragino Weather Station serial products include the main process unit ( WSC1-L ) and various sensors. The total power consumption equal total power of all above units. The power consumption for main process unit WSC1-L is 18ma @ 12v. and the power consumption of each sensor can be found on the Sensors chapter.
671
672
673 == 4.2 Reduce power consumption ==
674
675
676 The main process unit WSC1-L is set to LoRaWAN Class C by default. If user want to reduce the power consumption of this unit, user can set it to run in Class A. In Class A mode, WSC1-L will not be to get real-time downlink command from IoT Server.
677
678
679 == 4.3 Battery ==
680
681
682 (((
683 All sensors are only power by external power source. If external power source is off. All sensor won't work.
684 )))
685
686 (((
687 Main Process Unit WSC1-L is powered by both external power source and internal 1000mAh rechargeable battery. If external power source is off, WSC1-L still runs and can send periodically uplinks, but the sensors value will become invalid.  External power source can recharge the 1000mAh rechargeable battery.
688 )))
689
690
691 = 5. Main Process Unit WSC1-L =
692
693 == 5.1 Features ==
694
695
696 * Wall Attachable.
697 * LoRaWAN v1.0.3 Class A protocol.
698 * RS485 / Modbus protocol
699 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
700 * AT Commands to change parameters
701 * Remote configure parameters via LoRaWAN Downlink
702 * Firmware upgradable via program port
703 * Powered by external 12v battery
704 * Back up rechargeable 1000mAh battery
705 * IP Rating: IP65
706 * Support default sensors or 3rd party RS485 sensors
707
708 == 5.2 Power Consumption ==
709
710
711 WSC1-L (without external sensor): Idle: 4mA, Transmit: max 40mA
712
713
714 == 5.3 Storage & Operation Temperature ==
715
716
717 -20°C to +60°C
718
719
720 == 5.4 Pin Mapping ==
721
722
723 [[image:image-20240715175759-2.png]]
724
725
726
727 = 6. Water Qualit Sensors =
728
729 == 6.1  PH Sensor ==
730
731
732 (((
733 PH01 is a device for measuring the pH value (hydrogen ion concentration index, acidity and alkalinity) of a solution.
734
735 It adopts an integrated design, is lighter and simpler in structure, and is more convenient to use. The waterproof grade is IP68.
736
737 The reference electrode adopts a double salt bridge design, which has stronger anti-pollution ability.
738
739 This product is suitable for industrial sewage, domestic sewage, agriculture, aquaculture and other scenes in non-corrosive weak acid and weak alkali environments.
740 )))
741
742
743 === 6.1.1 Feature ===
744
745
746 * pH measurement range 0~~14pH, resolution 0.01pH.
747 * One-piece design, light and simple structure, easy to use.
748 * The reference adopts a double salt bridge design, which has stronger anti-pollution ability and waterproof grade IP68.
749 * The equipment adopts a wide voltage power supply DC 7~~30V.
750
751 === 6.1.2 Specification ===
752
753
754 * Power supply: DC7~~30V
755 * Power consumption: ≤0.5W
756 * Communication interface: RS485; standard MODBUS-RTU protocol; communication baud rate: default 9600
757 * pH measurement range: 0~~14.00pH; resolution: 0.01pH
758 * pH measurement error: ±0.15pH
759 * Repeatability error: ±0.02pH
760 * Equipment working conditions: Ambient temperature: 0-60℃
761 * Waterproof grade: IP68
762 * Pressure resistance: 0.6MPa
763
764 === 6.1.3 Dimension ===
765
766
767 [[image:image-20240715181651-3.png||height="223" width="562"]]
768
769
770 === 6.1.4 Installation Notice ===
771
772
773 (((
774 Do not power on while connect the cables. Double check the wiring before power on.
775 )))
776
777 (((
778 Installation Photo as reference:
779 )))
780
781
782 (((
783 (% style="color:#4472c4" %)** Submerged installation:**
784 )))
785
786 (((
787 The lead wire of the equipment passes through the waterproof pipe, and the 3/4 thread on the top of the equipment is connected to the 3/4 thread of the waterproof pipe with raw tape. Ensure that the top of the equipment and the equipment wire are not flooded.
788
789
790 [[image:image-20240715181933-4.png||height="281" width="258"]]
791 )))
792
793
794 (((
795 (% style="color:#4472c4" %)** Pipeline installation:**
796 )))
797
798 (((
799 Connect the equipment to the pipeline through the 3/4 thread.
800 )))
801
802 [[image:image-20240715182122-6.png||height="291" width="408"]]
803
804
805 (% style="color:#4472c4" %)**Sampling:**
806
807 Take representative water samples according to sampling requirements. If it is inconvenient to take samples, you can also put the electrode into the solution to be tested and read the output data. After a period of time, take out the electrode and clean it.
808
809
810 (% style="color:#4472c4" %)**Measure the pH of the water sample:**
811
812 First rinse the electrode with distilled water, then rinse it with the water sample, then immerse the electrode in the sample, carefully shake the test cup or stir it to accelerate the electrode balance, let it stand, and record the pH value when the reading is stable.
813
814
815 === 6.1.5 Maintenance ===
816
817
818 * The equipment itself generally does not require daily maintenance. When an obvious fault occurs, please do not open it and repair it yourself. Contact us as soon as possible!
819 * There is an appropriate amount of soaking solution in the protective bottle at the front end of the electrode. The electrode head is soaked in it to keep the glass bulb and the liquid junction activated. When measuring, loosen the bottle cap, pull out the electrode, and rinse it with pure water before use.
820 * Preparation of electrode soaking solution: Take a packet of PH4.00 buffer, dissolve it in 250 ml of pure water, and soak it in 3M potassium chloride solution. The preparation is as follows: Take 25 grams of analytical pure potassium chloride and dissolve it in 100 ml of pure water.
821 * The glass bulb at the front end of the electrode cannot come into contact with hard objects. Any damage and scratches will make the electrode ineffective.
822 * Before measurement, the bubbles in the electrode glass bulb should be shaken off, otherwise it will affect the measurement. When measuring, the electrode should be stirred in the measured solution and then placed still to accelerate the response.
823 * The electrode should be cleaned with deionized water before and after measurement to ensure accuracy.
824 * After long-term use, the pH electrode will become passivated, which is characterized by a decrease in sensitivity gradient, slow response, and inaccurate readings. At this time, the bulb at the bottom of the electrode can be soaked in 0.1M dilute hydrochloric acid for 24 hours (0.1M dilute hydrochloric acid preparation: 9 ml of hydrochloric acid is diluted to 1000 ml with distilled water), and then soaked in 3.3M potassium chloride solution for 24 hours. If the pH electrode is seriously passivated and soaking in 0.1M hydrochloric acid has no effect, the pH electrode bulb can be soaked in 4% HF (hydrofluoric acid) for 3-5 seconds, washed with pure water, and then soaked in 3.3M potassium chloride solution for 24 hours to restore its performance.
825 * Glass bulb contamination or liquid junction blockage can also cause electrode passivation. At this time, it should be cleaned with an appropriate solution according to the nature of the contaminant.
826 * (((
827 The equipment should be calibrated before each use. For long-term use, it is recommended to calibrate once every 3 months. The calibration frequency should be adjusted appropriately according to different application conditions (degree of dirt in the application, deposition of chemical substances, etc.). After aging, the electrodes should be replaced in time.
828 )))
829
830 === 6.1.6 Calibration ===
831
832
833 This device uses three-point calibration, and three known PH standard solutions need to be prepared.
834
835 (% style="color:#4472c4" %)**The steps are as follows:**
836
837 (1) Wash the electrode in distilled water, and put it in 9.18 standard buffer solution. After the data stabilizes, enter the following calibration command, that is, 9.18 calibration is completed. (% style="color:#4472c4" %)**"AT+CALPH=9" downlink:0xFB 09**(%%)
838
839
840 (2) Wash the electrode in distilled water, and put it in 6.86 standard buffer solution. After the data stabilizes, enter the following calibration command, that is, 6.86 calibration is completed; (% style="color:#4472c4" %)**"AT+CALPH=6" downlink:0xFB 06**(%%)
841
842
843 (3) Wash the electrode in distilled water, and put it in 4.01 standard buffer solution. After the data stabilizes, enter the following calibration command, that is, 4.00 calibration is completed. (% style="color:#4472c4" %)**"AT+CALPH=4" downlink:0xFB 04**(%%)
844
845
846
847
848 == 6.2 EC Sensor ==
849
850
851 EC K1/K10 is a device for measuring the conductivity of solutions. EC K1/K10 adopts an integrated design, which is lighter and simpler in structure and more convenient to use.
852
853 The waterproof grade is IP68. It can be widely used in continuous monitoring of the conductivity of aqueous solutions such as cross-section water quality, aquaculture, sewage treatment, environmental protection, pharmaceuticals, food and tap water.
854
855 (((
856
857 )))
858
859 === 6.2.1 Feature ===
860
861
862 * Conductivity measurement range is 0-2000us/cm; 10~~20000us/cm.
863 * Integrated design, light and simple structure, easy to use.
864 * Waterproof grade IP68.
865 * With salinity and TDS conversion function.
866 * RS485 communication interface: MDDBUS RTU communication protocol can be easily connected to the computer for monitoring and communication.
867 * ModBus communication address can be set and baud rate can be modified.
868 * The device adopts wide voltage power supply, DC 7~~30V is available.
869
870 === 6.2.2 Specification ===
871
872
873 * Power supply: DC7~~30V
874 * Power consumption: ≤0.5W
875 * Communication interface: RS485; standard MODBUS-RTU protocol; communication baud rate: default 9600
876 * Conductivity measurement range: K=1: 1~~2000μs/cm; resolution: 1μs/cm K=10: 10~~20000μs/cm; resolution: 10μ
877 * Conductivity measurement error: ±1%FS
878 * Equipment working conditions: Ambient temperature: 0-60℃
879 * Waterproof grade: IP68
880 * Pressure resistance: 0.6MPa
881
882 === 6.2.3 Dimension ===
883
884
885 [[image:image-20240715181651-3.png||height="223" width="562"]]
886
887
888 === 6.2.4 Installation Notice ===
889
890
891 Selection of matching electrode constant
892
893 [[image:image-20240716104100-1.png||height="349" width="641"]]
894
895
896 (% style="color:#4472c4" %)**Electrode installation form**
897
898 A:Side wall installation
899
900 B:Top flange installation
901
902 C:Pipeline bend installation
903
904 D:Pipeline bend installation
905
906 E:Flow-through installation
907
908 F:Submerged installation
909
910 [[image:image-20240716104537-2.png||height="475" width="706"]]
911
912 (% style="color:#4472c4" %)**Several common installation methods of electrodes**
913
914 When installing the sensor on site, you should strictly follow the correct installation method shown in the following picture. Incorrect installation method will cause data deviation.
915
916 A. Several common incorrect installation methods
917
918 [[image:image-20240717103452-1.png||height="320" width="610"]]
919
920 Error cause: The electrode joint is too long, the extension part is too short, the sensor is easy to form a dead cavity, resulting in measurement error.
921
922
923 [[image:image-20240716105124-4.png||height="326" width="569"]]
924
925 Error cause: Measurement error or instability may occur due to water flow not being able to fill the pipe or air accumulation at high altitudes.
926
927 B. Correct installation method
928
929 [[image:image-20240716105318-5.png||height="330" width="594"]]
930
931
932 === 6.2.5 Maintenance ===
933
934
935 * The equipment itself generally does not require daily maintenance. When an obvious fault occurs, please do not open it and repair it yourself, and contact us as soon as possible.
936 * If the electrode is not used for a long time, it can generally be stored in a dry place, but it must be placed (stored) in distilled water for several hours before use to activate the electrode. Electrodes that are frequently used can be placed (stored) in distilled water.
937 * Cleaning of conductivity electrodes: Organic stains on the electrode can be cleaned with warm water containing detergent, or with alcohol. Calcium and magnesium precipitates are best cleaned with 10% citric acid. The electrode plate or pole can only be cleaned by chemical methods or by shaking in water. Wiping the electrode plate will damage the coating (platinum black) on the electrode surface.
938 * The equipment should be calibrated before each use. It is recommended to calibrate it every 3 months for long-term use. The calibration frequency should be adjusted appropriately according to different application conditions (degree of dirt in the application, deposition of chemical substances, etc.).
939
940 === 6.2.6 Calibration ===
941
942
943 This device uses one-point calibration, and you need to prepare a known E standard solution. When the mileage K=1, 1~~2000 uses 1413uS/cm standard solution, and when the mileage K=10, 10~~20000 uses 12.88mS/cm standard solution.
944
945 (% style="color:#4472c4" %)**The steps are as follows:**
946
947 (1) Put the electrode in distilled water to clean it. When the mileage is 1~~2000, use 1413HS/cm standard solution.After the data is stable, enter the following calibration command
948
949 (% style="color:#4472c4" %)**"AT+CALEC=1" downlink:0xFD 01**
950
951 (2) Put the electrode in distilled water to clean it. When the range is 10~~20000, use 12.88mS/cm standard solution.After the data is stable, enter the following calibration command
952
953 (% style="color:#4472c4" %)**"AT+CALEC=10" downlink:0xFD 10**
954
955
956 == 6.3 ORP Sensor ~-~- ==
957
958
959 (((
960 ORP01 is a device for measuring the redox potential of a solution. It uses high-purity platinum to make an ORP composite electrode, which has strong acid and alkali resistance and antioxidant capacity, and has high measurement accuracy, fast response, and good stability.
961
962 The electrode can automatically compensate according to temperature. It is suitable for online monitoring of the redox potential of cyanide-containing and chromium-containing wastewater.
963 )))
964
965
966 === 6.3.1 Feature ===
967
968
969 * ORP measurement range -1999~~1999mV, resolution 1mV.
970 * Applicable electrode temperature 0~~80℃.
971 * The electrode is made of high-purity platinum, which has strong acid and alkali resistance and antioxidant capacity, high measurement accuracy, fast response and good stability.
972 * RS485 communication interface: ModBus-RTU communication protocol can be easily connected to the computer for monitoring and communication.
973 * ModBus communication address can be set and baud rate can be modified.
974 * The equipment adopts wide voltage power supply, DC 7~~30V
975
976 === 6.3.2 Specification ===
977
978
979 * Measuring range: -1999~~1999mV
980 * Resolution: 1mV
981 * Output signal: RS485
982 * Measurement error: ±3mV
983 * Stability: ≤2mv/24 hours
984 * Equipment working conditions: Ambient temperature: 0-60℃ Relative humidity: <85%RH
985 * Waterproof grade: IP68
986 * Pressure resistance: 0.6MP
987
988 === 6.3.3 Dimension ===
989
990
991
992 [[image:image-20240715181651-3.png||height="223" width="562"]]
993
994 === 6.3.4 Installation Notice ===
995
996
997 (((
998 (% id="cke_bm_321773S" style="display:none" %) (%%)Do not power on while connect the cables. Double check the wiring before power on.
999 )))
1000
1001 (((
1002 Installation Photo as reference:
1003 )))
1004
1005
1006 (((
1007 (% style="color:#4472c4" %)** Submerged installation:**
1008 )))
1009
1010 (((
1011 The lead wire of the equipment passes through the waterproof pipe, and the 3/4 thread on the top of the equipment is connected to the 3/4 thread of the waterproof pipe with raw tape. Ensure that the top of the equipment and the equipment wire are not flooded.
1012
1013
1014 [[image:image-20240715181933-4.png||height="281" width="258"]]
1015 )))
1016
1017
1018 (((
1019 (% style="color:#4472c4" %)** Pipeline installation:**
1020 )))
1021
1022 (((
1023 Connect the equipment to the pipeline through the 3/4 thread.
1024 )))
1025
1026 [[image:image-20240715182122-6.png||height="291" width="408"]]
1027
1028 === 6.3.5 Maintenance ===
1029
1030
1031 (1) The equipment itself generally does not require daily maintenance. When an obvious fault occurs, please do not open it and repair it yourself, and contact us as soon as possible.
1032 (2) In general, ORP electrodes do not need to be calibrated and can be used directly. When there is doubt about the quality and test results of the ORP electrode, the electrode potential can be checked with an ORP standard solution to determine whether the ORP electrode meets the measurement requirements, and the electrode can be recalibrated or replaced with a new ORP electrode. The frequency of calibration or inspection of the measuring electrode depends on different application conditions (the degree of dirt in the application, the deposition of chemical substances, etc.).
1033 (3) There is an appropriate soaking solution in the protective bottle at the front end of the electrode, and the electrode head is soaked in it to ensure the activation of the platinum sheet and the liquid junction. When measuring, loosen the bottle cap, pull out the electrode, and rinse it with pure water before use.
1034 (4) Preparation of electrode soaking solution: Take 25 grams of analytical pure potassium chloride and dissolve it in 100 ml of pure water to prepare a 3.3M potassium chloride solution.
1035 (5) Before measuring, the bubbles in the electrode glass bulb should be shaken off, otherwise it will affect the measurement. When measuring, the electrode should be stirred in the measured solution and then placed still to accelerate the response.
1036 (6) The electrode should be cleaned with deionized water before and after the measurement to ensure the measurement accuracy.
1037 (7) After long-term use, the ORP electrode will be passivated, which is manifested as a decrease in sensitivity gradient, slow response, and inaccurate readings. At this time, the platinum sheet at the bottom of the electrode can be soaked in 0.1M dilute hydrochloric acid for 24 hours (0.1M dilute hydrochloric acid preparation: 9 ml of hydrochloric acid is diluted to 1000 ml with distilled water), and then soaked in 3.3M potassium chloride solution for 24 hours to restore its performance.
1038 (8) Electrode contamination or liquid junction blockage can also cause electrode passivation. At this time, it should be cleaned with an appropriate solution according to the nature of the contaminant. If the platinum of the electrode is severely contaminated and an oxide film is formed, toothpaste can be applied to the platinum surface and then gently scrubbed to restore the platinum's luster.
1039 (9) The equipment should be calibrated before each use. It is recommended to calibrate once every 3 months for long-term use. The calibration frequency should be adjusted appropriately according to different application conditions (degree of dirt in the application, deposition of chemical substances, etc.). After aging, the electrodes should be replaced in time.
1040
1041
1042 === 6.3.6 Calibration ===
1043
1044
1045 OPR01 uses two-point calibration. You need to prepare two known ORP standard solutions.
1046
1047 (% style="color:#4472c4" %)**The steps are as follows:**(%%)
1048 (1) Put the electrode in distilled water to clean it, put it in 86mV standard buffer, wait for the data to stabilize, enter the following calibration command, and the 86mV point calibration is completed.
1049
1050 (% style="color:#4472c4" %)**"AT+CALORP=86" downlink:0xFD 00 56**(%%)
1051 (2) Put the electrode in distilled water to clean it, put it in 256mV standard buffer, wait for the data to stabilize, enter the following calibration command, and the 256mV point calibration is completed.
1052
1053 (% style="color:#4472c4" %)**"AT+CALORP=256" downlink:0xFD 01 00**
1054
1055
1056 == 6.4 dissolved oxygen Sensor ==
1057
1058
1059 (((
1060 The fluorescence dissolved oxygen sensor is a newly developed online digital sensor, using imported components and advanced production technology and surface mounting technology.
1061
1062 It has an IP68 waterproof rating, and the cable is seawater-proof. It can be directly put into the water without a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor.
1063
1064 The fluorescence dissolved oxygen sensor is based on the principle of quenching active fluorescence by specific substances in physics.
1065
1066 The blue light from a light-emitting diode (LED) shines on the fluorescent material on the inner surface of the fluorescent cap.
1067
1068 The fluorescent material on the inner surface is excited and emits red light.
1069
1070 By detecting the phase difference between the red light and the blue light and comparing it with the internal calibration value, the concentration of oxygen molecules is calculated, and the final value is automatically compensated for temperature and air pressure.
1071 )))
1072
1073
1074 === 6.4.1 Feature ===
1075
1076
1077 * Small size, low power consumption, easy to carry.
1078 * Truly achieve low cost, low price, high performance.
1079 * High integration, long life, high reliability.
1080 * Up to four isolations, can resist complex interference conditions on site, waterproof level IP68.
1081 * The electrode uses high-quality low-noise cable, which can make the signal output length reach more than 20 meters.
1082
1083 === 6.4.2 Specification ===
1084
1085
1086 * Measuring range: 0-20mg/L, 0-50℃
1087 * Accuracy: 3%, ±0.5℃
1088 * Resolution: 0.01 mg/L, 0.01℃
1089 * Maximum operating pressure: 6 bar
1090 * Output signal: A: 4-20mA (current loop)
1091 * B: RS485 (standard Modbus-RTU protocol, device default address: 01)
1092 * Power supply voltage: 5-24V DC
1093 * Working environment: temperature 0-60℃; humidity <95%RH
1094 * Power consumption: ≤0.5W
1095
1096 === 6.4.3 Dimension ===
1097
1098
1099 [[image:image-20240717105043-2.png||height="232" width="515"]]
1100
1101 === 6.4.4 Instructions for use and maintenance ===
1102
1103
1104 * Sampling: Take representative water samples according to the sampling requirements.
1105 * Determine dissolved oxygen in water samples: First rinse the electrode three times with distilled water, then rinse it three times with the water sample, then immerse the electrode in the sample, carefully shake the test cup or stir it to accelerate the electrode balance, let it stand, and record the dissolved oxygen when the reading is stable.
1106 * If it is inconvenient to take samples, you can also put the electrode in the measured solution, wait for the measured data to stabilize, read the output data, and take out the electrode after a period of time. Clean it.
1107 * After the sample measurement is completed, rinse the electrode three times with distilled water and put the electrode back in the protective solution upright.
1108
1109 Note: When measuring multiple samples, the electrode should be cleaned before measuring the next sample to avoid affecting the experimental data.
1110
1111 If the water conditions are complex and you want accurate data, you need to wipe the sensor probe frequently.
1112
1113
1114 === 6.4.5 Precautions ===
1115
1116
1117 * To ensure that the electrode measures correctly on the pipeline, avoid bubbles between the measuring cells that may cause data inaccuracy.
1118 * Please check whether the packaging is intact and whether the product model is consistent with the selected model.
1119 * Do not connect the wires with power on. After the wiring is completed and checked, power can be turned on.
1120 * Do not arbitrarily change the components or wires that have been welded at the factory when using the product.
1121 * The sensor is a precision device. When using it, please do not disassemble it by yourself or contact the sensor surface with sharp objects or corrosive liquids to avoid damaging the product.
1122
1123 == 6.5 turbidity Sensor ==
1124
1125
1126 (((
1127 The turbidity sensor is a newly developed online digital turbidity sensor, using imported components and advanced production technology and surface mounting technology.
1128
1129 It has an IP68 waterproof rating, and the cable is seawater-proof.It can be directly put into the water without a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor. This sensor probe uses a scattered light turbidity measurement method.
1130
1131 Since the turbidity in the water sample causes light to scatter, the intensity of the scattered light in the direction perpendicular to the incident light is measured and compared with the internal calibration value to calculate the turbidity in the water sample.
1132
1133 The ambient light interference is eliminated by infrared light and filters. After linearization processing, the output signal is stable and accurate.
1134 )))
1135
1136
1137 === 6.5.1 Feature ===
1138
1139
1140 * RS485 Temperature, Humidity, Illuminance, Pressure sensor
1141 * Axial capacitor filtering is used internally, and 100MΩ resistor increases impedance and enhances stability.
1142 * Small size, low power consumption, and easy to carry.
1143 * Truly achieve low cost, low price, and high performance.
1144 * High integration, long life, and high reliability.
1145 * Up to four isolations can resist complex interference conditions on site, and the waterproof level is IP68.
1146 * The electrode uses high-quality low-noise cable, which can make the signal output length reach more than 20 meters
1147
1148 === 6.5.2 Specification ===
1149
1150
1151 * Measuring range: 0.1～1000.0NTU
1152 * Accuracy: ±5%
1153 * Resolution: 0.1NTU
1154 * Stability: ≤3mV/24 hours
1155 * Output signal: A: 4～20 mA (current loop)B: RS485 (standard Modbus-RTU protocol, device default address: 15)
1156 * Power supply voltage: 5～24V DC (when the output signal is RS485)
1157 * 12～24V DC (when the output signal is 4～20mA)
1158 * Working environment: temperature 0～60℃; humidity ≤95%RH
1159 * Power consumption: ≤0.5W
1160
1161 === 6.5.3 Dimension ===
1162
1163
1164 [[image:image-20240717112849-3.png||height="285" width="582"]]
1165
1166
1167 === 6.5.4 Instructions for use and maintenance ===
1168
1169
1170 * It can be directly put into water without adding a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor.
1171 * If the water conditions are complex and you want accurate data, you need to wipe the sensor probe frequently.
1172
1173 === 6.5.5 Calibration ===
1174
1175 For turbidity calibration, you only need to prepare a solution. You can choose 0NTU, 200NTU, 400NTU, 600NTU, 800NTU, 1000NTU, and then enter the corresponding calibration command.
1176
1177 (% style="color:#4472c4" %)**"AT+CALNTU=0" downlink:0xFE 00        **(%%)0NTU turbidity solution
1178
1179 (% style="color:#4472c4" %)**"AT+CALNTU=2" downlink:0xFE 02        **(%%)200NTU turbidity solution
1180
1181 (% style="color:#4472c4" %)**"AT+CALNTU=4" downlink:0xFE 04        **(%%)400NTU turbidity solution
1182
1183 (% style="color:#4472c4" %)**"AT+CALNTU=6" downlink:0xFE 06        **(%%)600NTU turbidity solution
1184
1185 (% style="color:#4472c4" %)**"AT+CALNTU=8" downlink:0xFE 08        **(%%)800NTU turbidity solution
1186
1187 (% style="color:#4472c4" %)**"AT+CALNTU=10" downlink:0xFE 0A     **(%%)1000NTU turbidity solution
1188
1189
1190
1191
1192 === 6.5.6 Precautions ===
1193
1194 * To ensure that the electrode measures correctly on the pipeline, avoid bubbles between the measuring cells that may cause data inaccuracy.
1195 * Please check whether the packaging is intact and whether the product model is consistent with the selected model.
1196 * Do not connect the wires with power on. After the wiring is completed and checked, power can be turned on.
1197 * Do not arbitrarily change the components or wires that have been welded at the factory when using the product.
1198 * The sensor is a precision device. When using it, please do not disassemble it by yourself or contact the sensor surface with sharp objects or corrosive liquids to avoid damaging the product.
1199 * Do not power on while connect the cables. Double check the wiring before power on
1200
1201 = 7. FAQ =
1202
1203
1204
1205 = 8. Order Info =
1206
1207 == 8.1 Main Process Unit ==
1208
1209
1210 Part Number: (% style="color:blue" %)**WSC1-L-XX**
1211
1212 (% style="color:blue" %)**XX**(%%): The default frequency band
1213
1214 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1215 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1216 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1217 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1218 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1219 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1220 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1221 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1222
1223 == 8.2 Sensors ==
1224
1225
1226 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
1227 |=(% style="width: 300px;background-color:#4F81BD;color:white" %)**Sensor Model**|=(% style="width: 200px;background-color:#4F81BD;color:white" %)**Part Number**
1228 |(% style="width:462px" %)PH Sensor|(% style="width:120px" %)DR-PH01
1229 |(% style="width:462px" %)EC K1 Sensor|(% style="width:120px" %)DR-ECK1
1230 |(% style="width:462px" %)EC K10 Sensor|(% style="width:120px" %)DR-ECK10
1231 |(% style="width:462px" %)ORP Sensor|(% style="width:120px" %)DR-ORP1
1232 |(% style="width:462px" %)Dissolved Oxygen Sensor|(% style="width:120px" %)DR-DO1
1233 |(% style="width:462px" %)Turbidity Sensor|(% style="width:120px" %)DR-TS1
1234
1235 = 9. Support =
1236
1237
1238 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1239
1240 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].