Introduction:
PH/ORP-600 is a cost-effective industrial online pH/ORP monitor dedicated to continuous water quality monitoring. Built for long-term stable operation under harsh industrial environments, it supports both pH and ORP measurement with high input impedance, matching most common pH/ORP composite electrodes for sewage and pure water systems.
Main Characteristics:
Industrial online continuous monitoring & automatic control for water treatment & chemical industry
Three-point auto-calibration with automatic standard solution identification
High/low limit relay alarm & dosing control, normally open contact output
Isolated 4–20mA signal output; RS485 Modbus RTU communication optional
Advanced EMC anti-jamming circuit, stable performance in harsh industrial environments
Compact panel embedded installation, simple operation & low maintenance
Dual AC 110V/220V power supply, wide humidity working condition (≤85%RH)
Main Technical Index:
Measurement range | pH(0~14 pH) ; ORP( -1200~+1200 mV) |
Resolution ratio | 0.01PH;0.2mV |
Accuracy | + 0.1 pH; + 1 mV |
Displaying mode | LCD |
Calibrating mode | Three-point calibration (automatic identification of solutions) |
pH standard solution | 4.00/6.86/9.18 (standard), 4.01/7.00/10.01(optional) |
Compression resistance of electrodes | 0~0.5MPa,Flow Velocity≤3m/s |
Manual temperature compensation | 0~100℃ |
Power supply | AC220V ±10%, 50/60HzR, AC110V ±10%, 50/60Hz, DC24V or DC12V, 0.5A, |
| Working environment | (1)temperature 0~60 ℃ (2)humidity≤85%RH |
Outline dimension
| 48*96*100mm(high×width×depth) |
Outline dimensions:

Installation:

The Standard is a manual temperature electrode
PH Illustration:
(1)PH electrode signal input(Transparent)
(2)PH electrode signal ground wire(Black)
(3)temperature resistance(White)
(4)temperature resistance(Green)
(5)4-20mA+positive terminal
(6)4-20mA-negative terminal
(7)the constantly open terminal of the minimum control relay
(8)the public terminal of the control relay
(9)the constantly open terminal of the maximum control relay
(10)AC-220V power input
(11)Equipment Ground wire
(12)AC-220V power input

ORP Illustration:
(1)ORPelectrode signal input (White)
(2)ORPelectrode signal ground wire( Black)
(3)NC
(4)NC
(5)4-20mA+ positive terminal
(6)4-20mA-negative terminal
(7)the constantly open terminal of the minimum control relay
(8)the public terminal of the control relay
(9)the constantly open terminal of the maximum control relay
(10)AC-220V power input
(11)Equipment Ground wire
(12)AC-220V power input
Installation of measuring electrodes:
The measuring electrodes are compound electrodes with plastic shellsand3/4"NPT threaded joints,Please install strictly according to the following diagrams:


3/4"NPT threaded joints.
Points for attention:
1) The electrodes shall be installed where the flow speed is steady andairbubs seldom gather or backwater which may lead to the inaccuracy.
2) The electrodes shall be submerged deep into the flowing water.
3)The cable collecting ORPsignals which is a form of weak potential signals shall be separately wired and shall not share a protective pipe with powersupply wires and control wires,so as to avoid interference.
The instrument as a whole set:
PH/ORP controller:1pc,
PH/ORP Sensor:1pc,
Fixing clamp:1pair,
Operation manual:1copy,