Product Categories

Multiparameter Controller Cl₂, pH & ORP CL 7687.103

in stock
SKU: MC7687

The CL 7687.103 multiparameter controller is designed for continuous measurement and control of Cl₂, pH and ORP in water treatment and industrial applications. It supports pH, ORP, chlorine and temperature sensors, while the integrated RS485/Modbus RTU communication allows easy connection to PLC and SCADA systems. A reliable solution for precise monitoring, control and automation.

Add to Quote

Description

Multiparameter Controller Cl₂, pH & ORP with RS485/Modbus RTU
CL 7687.103

 

 

The Cl₂, pH and ORP multiparameter controller is an advanced solution for the continuous measurement and control of key disinfection and water quality parameters.

 

The device allows the simultaneous measurement of:

  • Residual chlorine (Cl₂)
  • pH
  • ORP (Redox)

and can simultaneously display multiple values, combining data from pH, ORP and temperature sensors.

 

It is compatible with:

  • pH sensors (glass or antimony)
  • ORP sensors
  • Amperometric chlorine sensors (2 or 3 electrodes)
  • Pt100 / Pt1000 temperature sensors

 

The built-in RS485 digital communication bus with Modbus RTU enables easy integration into automation systems (PLC / SCADA), making it ideal for industrial applications.

 

 

 

The device can perform the following functions:

– Measurement display within the range defined by the installed sensor
– Automatic control operation
– Alarm for minimum/maximum measurement values, overfeed relay activation and logic input presence
– Programmable dual analog output for data logging and collection of measured values or PID control
– RS485/Modbus output (func 3)
– Hold / alarm function activated via two external voltage-free contacts
– Automatic or manual sensor cleaning cycle activation.

 

 

Applications

  • Drinking water treatment
  • Industrial processes
  • Water treatment installations
  • Swimming pools
  • Wastewater treatment systems
  • Disinfection systems

 

 

Technical Data

 

Multiparameter Controller Cl₂, pH & ORP with RS485/Modbus CL 7687.103
Inputs Potentiostatic sensors
Amperometric membrane sensors (polarographic)
pH electrodes (glass / antimony)
ORP
Pt100 / Pt1000
Zero ±20 %, ±5.0 °C, ±9 °F
Sensitivity 12.5 ÷ 250 %
Resolution 1 digit
Accuracy 0.2 %
Repeatability 0.1 %
Non-linearity 0.1 %
Dual filter software 0.4 ÷ 50.0 seconds for small and large variations
Dual analog output 0-20 mA / 4-20 mA, Rmax 600 Ω
Digital output
 RS485 isolated, B&C ASCII and MODBUS protocol (function 03)
Dual HI/LO set points ON/OFF – PID – PFM – PWM, SPST relay
Hysteresis 0 ÷ 10 %
Delay 0 ÷ 100.0 seconds
Alarm SPDT relay with delay 0 ÷ 100.0 seconds
Cleaning function off / automatic / manual, SPDT relay
repeat time: 0.1 ÷ 100.0 hours
cleaning time: 1.0 ÷ 60.0 seconds
waiting time: 0.0 ÷ 20.0 minutes
SPST & SPDT relay contacts 220V – 5 A (resistive load)
Humidity 95% without condensation
Power supply 85 ÷ 264Vac – 50/60 Hz
9 ÷ 36Vdc, 12 ÷ 24Vac (option 091.42x)
Terminals removable
Weight 1360 g
Enclosure Metallic, IP65 front panel only
Dimensions 98x98x104 mm, panel cut-out 90x90x95 mm
EMC/RFI compliance EN 61326
Registered design 002564666-002

Technical specifications may be changed without prior notice.

 

 

Package contents

  • 2 clips for panel mounting
  • Instruction manual.

 

Ask A Quote

Fill the form to get a quote or more information about the product.

x