Knowledge Base:  
Tech Note 108: Installation of Accelerometer Extension Cables
Last Updated: 05/10/2017

Installation of Accelerometer Extension CablesCMCP602 and CMCP603 Accelerometer Extension Cables are compatible with any male MIL-Spec 2 and 3 Pin connectors. Connector back shells are completely potted to meet liquid-tight specifications. To ensure a liquid-tight connection, the sensor should be filled with a silicone sealant, such as our CMCP213, before connecting the extension cable to be sure no liquid can enter. The connector nut should not be tightened with pliers, this will cause the corrosion resistant paint to chip off and make the cable prone to rust and corrosion. Hand tighten or use soft grip tools.

Dedicated rigid conduit is recommended in all installations for mechanical and noise protection. The conduit should be metal, and in direct contact with each segment and/or junctions boxes. With this type of installation, a single ground point can be established. The final run to the sensor can be metal flexible conduit.

Properly secure the extension cable at the sensor so that there is no pull pressure on the sensor.

The extension cable shield is “floating” at the sensor end. Be sure to land the cable shield to the sensor common at the opposite end to prevent noise or erratic readings.

A optional BNC connector is available for portable data collection. When the cable is not in use, the provided BNC dust cap must be on to prevent the BNC from being harmed.

Wiring Guide:

CMCP602 (L and H)

Wire Color

Pin


Red

A


Black

B


Shield (Bare)

Floating


CMCP603 (L and H)

Red

A


Black

B


White

C


Shield (Bare)

Floating



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