• Specification

Product	Digital pH sensor
Model	SUP-PH8001
Measurement range	0.00-14.00pH; ±1000.0mV
Resolution	0.01pH,0.1mV
Heat resistance	0 ~ 60℃
Output	RS485 (MODBUS-RTU)
ID	9600，8，1，N (Standard) 1-255
Power supply	12VDC
Power consumption	30mA @12VDC

 

• Introduction

 

• Communication Protocol

Communication interface: RS485 Port setting: 9600,N,8,1 (default) Device address: 0x01 (default) Protocol specification: Modbus RTU Instruction support: 0x03 read into register 0x06 write register | 0x10 write register continuously   Register data format

Address	Data name	Conversion factor	Status
0	Temperature	[0.1℃]	R
1	PH	[0.01pH]	R
2	PH.mV	[0.1mV]	R
3	PH. Zero	[0.1mV]	R
4	PH. slope	[0.1%S]	R
5	PH. Calibration points	-	R
6	System status. 01	4*bits 0xFFFF	R
7	System status. 02	4* bits 0xFFFF	R/W
8	User command address	-	R
9	User commands. Results	[0.1mV]	R
11	ORP	[0.1mV]	R