Monitoring of pH and Redox Potential
Monitoring Systems
PH4RD4(L), PH8RD8
The PHRD monitoring system allows parallel monitoring of 4 or 8 pH sensors with temperature compensation and 4 or 8 redox sensors. Additionally, up to two Pt100 temperature sensors can be connected and two 0/4-20mA / 0-10V analog inputs provide external signal integration. An easy-to-use one or two point calibration procedure for pH, pO2 and temperature is integrated.
The 4 channel PHRD model features 4 optional conductivity-based level inputs. These inputs can be used for level control during continuous operation or for automated anti foam addition.
Dimensions (WxDxH): 300 x 320 x 190mm
pH Inputs: 4 or 8, pH0 .. pH14 (+/- 0.01pH), -472 .. +472mV
Redox Inputs: 4 or 8, -2000 .. 2000mV (+/- 1mV)
Pt100 Inputs: 2, -25 .. 116°C (+/- 0.1 K), 90 ..160Ohm
Level Inputs: 4, 0 .. 20mS
Analog Inputs: 2, 0/4 .. 20mA or 0 .. 10V
Electrical Supply: 110-240VAC, 50/60Hz
Interface: RS232/RS485
The 4 channel PHRD model features 4 optional conductivity-based level inputs. These inputs can be used for level control during continuous operation or for automated anti foam addition.
Technical Specifications
Dimensions (WxDxH): 300 x 320 x 190mm
pH Inputs: 4 or 8, pH0 .. pH14 (+/- 0.01pH), -472 .. +472mV
Redox Inputs: 4 or 8, -2000 .. 2000mV (+/- 1mV)
Pt100 Inputs: 2, -25 .. 116°C (+/- 0.1 K), 90 ..160Ohm
Level Inputs: 4, 0 .. 20mS
Analog Inputs: 2, 0/4 .. 20mA or 0 .. 10V
Electrical Supply: 110-240VAC, 50/60Hz
Interface: RS232/RS485
Part Number
Part Description
- 78525214 Sensor module PH4RD4 w/ 4x pH, 4x Redox, 2x temp and 2x analog input
- 78525215 Sensor module PH4RD4L w/ 4xpH, 4x Redox, 4x COND, 2x temp and 2x analog input
- 78525216 Sensor module PH8RD8 w/ 8x pH, 8x Redox, 2x temp and 2x analog input
- 78522031 DASGIP level sensor cable, L3m
- 78522020 DASGIP pH/Redox cable with AK9 plug, L3m
- 78103304 Platinum RTD temperature sensor, 100 Ohm class A, OD1.6mm, L300mm, cable L3m