Cathodic protection monitoring for pipelines

Steel pipelines are protected against corrosion through cathodic protection. The cathodic protection needs to be maintained. This means that the voltage and current need to be within the defined boundary. With this remote monitoring device the voltage and current can be measured on a continuous basis. As a result damages and degradation is detected earlier, operational costs are reduced and asset lifetime is increased.


  • Easy installation by smartphone or tablet with direct connectivity to device 

-Modern LTE-M mobile communication allows for communication with device even during setup. 

  • 8 channel measurement with galvanic isolation

-3 channel AC+DC and additional current AC+DC measurement for a coupon 

  • On/off measurements and data logging combined

-Define your own desired measurement frequency (1X/5 minutes to 1X/week) and carry out more frequent samplings for stray current measurements (every second for 5minutes or every second for 24 hours). Automatic calculation of min, max and standard deviation for rectifier connected devices. 

  • Coupon measurement with relay

-Carry out coupon measurements including AC+DC current measurement

  • Time synchronisation and coordinates 

-Electronic time synchronisation allows for synchronized switching of rectifiers and test points and measurements. 

  • Rectifier switching and control

-The device can also switch rectifiers with an external relay. In addition with a 0-10V/4-20mA output signal it can also control any rectifier.

  • Cloud based advanced monitoring software

-Create alerts, monitor thresholds, assign actions for your CP personnel all from one always accessible dashboard

-Insert manual measurements including standard routes

Description:  Remote monitoring for CP in test posts, rectifiers, drains and isolation joints
Product code:  Model CPPO.V3.C1.R (for test posts, drains and isolation joints) 

Model CPRA.V3.C1.R (for rectifiers) 

Model CP-Modbus (for Amstel rectifiers) 

Channels:  3X DC & 3X AC voltage

1X AC & 1X DC current 

Range and accuracy  AC+DC voltage: +/- 50mV-50V @ max. +/- 1% + 1 digit resolution

AC+DC current: +/- 10mA-20A @ max. +/- 2.5% + 1 digit resolution

Including self-calibrating 0,12% accuracy reference cell (temp coefficient: 9ppm/C)

Impedance > 20 MOhm
Frequency 16 2/3 – 100 Hz (digitally filtered)
Switch accuracy +/- 1 ms
Time synchronisation NTP (GPS upon request) 
Coupon measurement On potential (AC+DC), Off potential (AC+DC), Current AC, Current DC 
Measurement frequency (adjustable)  1X/5 minutes to 1X/week
Sampling rate and frequency 500hz (2ms), one measurement every 60ms (30 measurements)
Inspection measurement frequency Every second for 5 minutes (300 measurements)

Every second for 24 hours (86400 measurements)

Rectifier control  Connected to external relay. Custom switching frequency (e.g. 0.2/0.8s, 10s/2s)

Additional control via RS232, 0-10V, 4-20mA (upon request) 

Norms:  Conform the EN-norms 13509
Battery life:  38Ah, 6 years with 4X / day measurement 
Power supply: 24VDC or 230V
Communication protocol: LTE-M
Encryption:  End-to-end DTLS encryption 
Firmware over the air update:  Yes
IP-rating: 67 
Dimensions: 250*80*70mm

Device partner

Certified partner


System integrator

System integrator

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