Summary

• Page properties (2 modified, 0 added, 0 removed)

Details

Page properties

Author

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

Content

...	...	@@ -556,20 +556,19 @@
556	556
557	557	== 2.7 Calibration ==
558	558
	559	+Step1 : Clean probe
559	559
560		-(% style="color:blue" %)**Step1 :(%%) Clean probe**
561		-
562	562	user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks new, users can clean it to remove hydrochloric acid or other liquids from the surface.
563	563
564		-(% style="color:blue" %)**Step2 :(%%) Immerse the sensor in ph buffer solution to make the sensor values stable**
	563	+Step2 : Immerse the sensor in ph buffer solution to make the sensor values stable
565	565
566	566	(((
567	567	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).
568	568
569		-**Note：Only one ph buffer with one of the ph values needs to be calibrated during calibration. Wait for the sensor measurement value to be stable, it does not need to be the same as the ph marked by the ph buffer**
	568	+Note：Only one ph buffer with one of the ph values needs to be calibrated during calibration. Wait for the sensor measurement value to be stable, it does not need to be the same as the ph marked by the ph buffer
570	570
571	571
572		-(% style="color:blue" %)**Step3 :(%%) The numerically stable sensors were calibrated using commands**
	571	+Step3 : The numerically stable sensors were calibrated using commands
573	573	)))
574	574
575	575	(((
...	...	@@ -611,6 +611,7 @@
611	611
612	612	* LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>url:http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
613	613
	613	+
614	614	When the command is successfully used, the node sends a uplink.
615	615	This is the payload for uplink
616	616
...	...	@@ -639,8 +639,10 @@
639	639
640	640	* Reply to non-confirmed packet: 14 00
641	641
642		-(% style="color:blue" %)**Step4：(%%)After the calibration is completed, its measurement results in this ph buffer solution should be consistent with the numerical value of the command used in the calibration.**
	642	+Step4：
643	643
	644	+After the calibration is completed, its measurement results in this ph buffer solution should be consistent with the numerical value of the command used in the calibration
	645	+
644	644	Examples:
645	645	After using the command AT+PH=9 in 9.18ph buffer
646	646	The readout returned by the sensor in 9.18ph buffer should be pH=9