Redox measuring transmitter

GRMU2000MP

Redox measuring transducer for Redox mV monitoring, with -2000 ... 2000 mV range or type-plate scaling, ±0,2% accuracy, galvanically isolated input and 4-20 mA or voltage output.

Introduction

Fixed Redox measuring points need a transmitter that turns the electrode signal into a usable process value without adding complexity. This Redox measuring transducer converts electrode signals in the -2000 ... 2000 mV range, or the range stated on the type plate, into 4-20 mA or voltage outputs for connection to downstream systems.
 
Installation stays practical on site. The ABS housing provides ingress protection (IP65, except electrodes), mounts through internal wall-fixing holes and connects via a DIN 43650 angled plug. The input is galvanically isolated, the supply is protected against reverse polarity, and the 4-20 mA version operates from 12 - 30 V DC.
 
The standard Cinch electrode socket supports every Redox electrode in the Senseca range, with optional BNC or DIN sockets available. Option VO adds a 3½-digit LCD with approx. 10 mm character height, plus error messages for exceeded measuring range and system faults.

Wide mV coverage
Wide mV coverage
Covers -2000 ... 2000 mV or the measuring range stated on the type plate.
Clean system signal
Clean system signal
4-20 mA or voltage outputs pass Redox values to downstream control equipment.
Protected installation
Protected installation
ABS housing with ingress protection (IP65, except electrodes) supports fixed wall mounting.
Easy local checks
Easy local checks
Option VO shows values on a 3½-digit LCD with approx. 10 mm characters.

Features

Electrode input

The transmitter uses a high-impedance Redox electrode input with 10^12 Ohm input resistance.

Socket variants

The standard electrode connection is a BNC socket.

Electrical connection

 The angled DIN 43650 plug supports 2-wire 4-20 mA wiring and 3- or 4-wire voltage versions.

Supply and load

The 4-20 mA version operates at 12 - 30 V DC. Voltage output versions operate at 18 - 30 V DC.

Mounting

The housing mounts through internal fixing holes after removing the cover. The fixing distance is 50 x 70 mm.

Display diagnostics

Option VO displays defined error and system messages, including FE 1, FE 2 and FE 7.