Summary

• Page properties (1 modified, 0 added, 0 removed)
• Attachments (0 modified, 0 added, 1 removed)
  • image-20220607144936-3.png

Details

Page properties

Content

...	...	@@ -338,6 +338,8 @@
338	338
339	339
340	340
	341	+
	342	+
341	341	== 2.6 Installation and Maintain ==
342	342
343	343	=== 2.6.1 Before measurement ===
...	...	@@ -391,25 +391,50 @@
391	391	)))
392	392	1. (((
393	393	The probe is IP68 can be put in water.
	396	+)))
394	394
395	395
396		-
397		-)))
398	398
399		-== 2.7 Calibration ==
	400	+2.7 Calibration
400	400
401	401	User can do calibration for the probe. It is limited to use below pH buffer solution to calibrate: 4.00, 6.86, 9.18. When calibration, user need to clean the electrode and put the probe in the pH buffer solution to wait the value stable ( a new clean electrode might need max 24 hours to be stable).
402	402
403	403
404		-(% style="color:#037691" %)**After stable, user can use below command to calibrate.**
	405	+**After stable, user can use below command to calibrate.**
405	405
406		-[[image:image-20220607144936-3.png]]
407	407
	408	+|**pH buffer solution**|**AT Command to calibrate**|**Downlink Command**|**Read Cal Value**
	409	+|**4.00**|**AT+PHCAL=4**|(((
	410	+**0x13 04**
408	408
	412	+**Reply with Calibrate payload**
	413	+)))|(((
	414	+**AT+PHCAL=?**
409	409
410		-(% style="color:#037691" %)**Calibration Payload**
	416	+**Example 41,61,91**
	417	+)))
	418	+|**6.86**|**AT+PHCAL=6**|(((
	419	+**0x13 06**
411	411
412		-(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
	421	+**Reply with Calibrate payload**
	422	+)))|**AT+PHCAL=?**
	423	+|**9.18**|**AT+PHCAL=9**|(((
	424	+**0x13 09**
	425	+
	426	+**Reply with Calibrate payload**
	427	+)))|**AT+PHCAL=?**
	428	+|**Factory Default**|**AT+PHCAL=15**|(((
	429	+**0x13 15**
	430	+
	431	+**Reply with Calibrate payload**
	432	+)))|(((
	433	+**AT+PHCAL=?**
	434	+
	435	+**Example 151**
	436	+)))
	437	+
	438	+Calibration Payload
	439	+
413	413	|(((
414	414	**Size**
415	415
...	...	@@ -424,7 +424,11 @@
424	424
425	425	Calibrate value
426	426	)))|Reserve|(((
427		-[[Message Type Always 0x03>>||anchor="H2.3.6MessageType"]]
	454	+[[Message>>path:#Message_Type]]
	455	+
	456	+[[Type>>path:#Message_Type]]
	457	+
	458	+Always 0x03
428	428	)))
429	429
430	430	User can also send 0x14 downlink command to poll the current calibration payload.

image-20220607144936-3.png

Author

...	...	@@ -1,1 +1,0 @@
1		-XWiki.Xiaoling

Size

...	...	@@ -1,1 +1,0 @@
1		-23.6 KB

Content