InteliSENS® CG Series Capacitance Gauge

Capacitance Measurement

Proton Products InteliSENS® CG series capacitance gauges are designed for the continuous measurement of cable insulation capacitance on insulation extrusion lines, enabling manufacturers to control the capacitive characteristics of their cable insulation.

  • For insulation capacitance measurement during the manufacture of telecommunications and RF coaxial cables.
  • Capacitance gauge heads are available to accommodate different cable diameters.
  • Designed to be immersed in the post-extrusion water cooling trough or injected with high-pressure water (ceramic lined end-caps are available for sealing smaller diameter cables).
  • High accuracy, drift-free capacitance measurement from low to high line speeds with zero correction function.
  • Unaffected by water temperature, and compensates for water resistivity and pH.
  • Rapid installation and maintenance free.
  • Range of interfaces available for connection to PLCs and computers.
  • Integrates seamlessly via CANbus with a Proton Products NEXiS® CS2G-CAP Controller for capacitance driven control of the insulation extrusion process.
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Specifications

CG1010 CG1025 CG1060
Maximum cable diameter 10 mm 25 mm 60 mm
Gauge head bore diameter 15.1 mm 30.1 mm 75 mm
Overall gauge head length 410 mm 630 mm 1080 mm
Active electrode length 155 mm 140 mm 140 mm
Capacitance 0 to 500 pF/m
Accuracy ±(0.2% +0.2 pF/m)

Connectivity

2x user-configurable selectable digital inputs: Reset
Maximum input voltage: 24 Vdc

4x Relay outputs
User configurable functions:
Gauge OK;
Upper limit exceeded; Lower limit exceeded.
Isolated contacts, maximum voltage: 50 Vdc / 30 VAC.
Maximum current: 0.5 A.

1x Analogue input
0 to 10 Vdc; user-scalable.

1x Speed pulse input
250 kHz maximum frequency; 30 V or 50 V maximum pulses (on two distinct inputs); user-scalable.

Ethernet Modbus TCP (or ‘Ethernet TCP/IP’); Ethernet UDP
OPC UA compatibility: OPC UA 1.03

PROFIBUS, PROFINET, EtherNet/IP included as standard – select one for use (viaPCIS software or CDi4 interface).

RS232: An optional RS232-to-USB converter cable is available for connection to USB-equipped computers.
RS422
RS485

Wi-Fi for gauge configuration and diagnostics.

Gauge Add On Hardware

3x analogue outputs:
±10 Vdc output of capacitance or errors; user-scalable. Analogue output update rate: 1 ms.

Proportional Integral feedback controller.

Gauge Add On Software

Statistics: Maximum, Minimum, Mean, Standarddeviation, Cp, Cpk

Fast Fourier Transform analysis for amplitude and frequency of periodic capacitance variations.

SRL is the ratio of the returned (or reflected) signal to the input signal expressed in decibels (dB).