envea VIEW 370, Руководство пользователя

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VIEW 370/373 4 Unpacking and Preparation
ENVEA UK Ltd
(PC-000855-MA Issue 6, December 2021)
13
• Support cables at appropriate intervals.
• Do NOT route cables where they may be at risk from lightning (for
example, overexposed roofs)!
4.3.3 Grounding the Sensor
For ElectroDynamic ® sensors, the sensor body must be grounded to the stack
wall. Poorly grounded sensors may pick up external noise-producing false high
readings. Ensure the installation complies with the following guidelines:
• The sensor may only be fitted to a metal duct or stack. If the stack is not
metallic or you are concerned that the stack may not provide a suitably
earthed shield for the sensor, please contact ENVEA or your local ENVEA
representative.
• A grounding strap (or earth wire) is provided to ensure the sensor body can
be securely grounded to the metallic stack wall. The sensor is electrically
grounded to the ductwork by the mechanical connection made between the
sensor and the socket, and also by the external grounding strap.
• DO NOT PUT PTFE TAPE AROUND THE THREAD! (As this can
compromise the sensor grounding connection)
• Remove excessive rust from the thread and socket and apply a small
amount of copper-loaded grease.