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ZIO-CPM Cathodic Protection Monitor

ZIO-CPM is designed to measure critical CP parameters such as Structure to Reference, Foreign Structure to Reference and Instant Off potentials automatically.

ZIO-CPM offers multi-function 4-20mA outputs and RS485 MODBUS scada connection for monitoring the parameters measured at the programmable intervals.

Wide input voltage range allows ZIO-CPM to be powered with 12-50 VDC. Reverse polarity protection assures modules connection safety. ZIO-CPM also offers 4 Digital Inputs for general purpose usage.

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Technical Specifications

Model ZIO-CPM-10 ZIO-CPM-5
Supply Voltage 12-50VDC
Reverse Polarity Protection
Input Current <1A
Number of Analog (AI) Inputs 2 (Selectable)
Analog Input Range  ±10 VDC ±5 VDC
±7 VACrms ±3.5 VACrms
Input Protection 500V
Burst/Surge Protection
Input Impedance 10Mohm
Measurement Accuracy for DC 0.5%+20mV
Measurement Accuracy for AC 2%+0.1V
Resolution  5mV 2.5mV
Number of Digital (DI) Inputs 4
Galvanic Isolation
Dielectric Withstand Voltage 1500VAC 60s.
Digital Input Voltage Range 15-30VDC
Number of Analog (AO) Outputs 2
Analog Output Type 4-20mA
Analog Output Supply External
Analog Output Load Range 0-1000Ohm
Analog Output (AO1) Data Multiple Functioning
Analog Output (AO2) Data Multiple Functioning

Analog Output 1 Mapping (DC)

4mA – 4.5mA=-OL
5mA=-10V 5mA=-5V
12mA= 0V
19mA=+10V 19mA=+5V
19.5-20mA= +OL

Analog Output 2 Mapping (AC)

4mA= 0V
20mA=7VAC RMS 20mA=3.5VAC RMS
Digital Communication RS485 MODBUS RTU
Communication Speed 9600BPS
Over Range Alarm
Operating Temperature Range -30,+60ºC
Mounting Style Din Rail