Redox probe with controller M 1322


Measuring range: from -2000 to +2000 mV

  • Online Redox measurement
  • PI regulation option
  • Communication output (SELECAN) or galvanically separated current output
  • IP 65 housing
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Redox measurement is used in chemical industry, in swimming-pools, potable and waste water treatment and also in different kinds of industrial measurements.
Controlmatik probe M 1322  is designed for continuous measurement of Redox. With special versions of measuring electrodes it can also be used for measurement of other media.

The unit consists of :
Redox measuring electrode
Controller with graphic display
Electronics evaluates and amplifies the measured potential. PI regulatorthat independently controls a certain process, can be build in a probe. The probe can be equipped with the galvanic separated 4–20 mA signal on the amplifiers output. The user can easily communicate with a probe over graphic display and four function keys.
The probe  guarantees accurate and continuous measurement.


Ambient temperature
Relative humidity
10...95 % non-condensating
Control unit protection
IP 65
0,2 kg
98 x 64 x 38

Redox measurement

Max. Measuring range (MR)
from –2000 to +2000 mV
Measured value resolution
1 mV
Deviation of indication, measured value
maximum 0,2% of M.R.
Redox input signal
Input resistance at nominal operating conditions > 1000 MOhm
Redox input signal
Current input at nominal operating conditions < 1 pA

Electrical data

Power supply
9 - 36 VDC,12 - 24 VAC±10%
2 W

Current output connector

2 (galvanic separated)
Isolation voltage
Current range
4...20 mA
Power supply
9...26 VDC
Output range
adjustable to (MR)
Output Mode options
Redox signal output, Regulator output
Regulator connector
Regulator 3 point switch or PI regulator
3 x 24 VAC / 250 mA
3 x 24 VAC
Mode options
Motor Control, Pump Control


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