envea STACK 602, User Manual

Page: 22 / 68

9 Maintenance STACK 602
22
(PC-000848-MA Issue 5, December 2021)
ENVEA UK Ltd
4.3.2 Cabling and Cable Routing
The cables between the sensor and net modules and control unit are of the same
type (these comprise four cores with an overall screen). Sensor data cables are
supplied as standard (see section
2.4.1
on page
16
for details).
For more information on available network modules, see
System Options
on page
16
and refer to the
Related Documentation
on page
11
.
Guidelines for Routing Cables
1. Ensure the cable sheath fully penetrates the cable entry gland on the
sensor.
2. Fit blanking plugs to unused cable entry glands.
3. Ensure cable entry glands are securely tightened to the cable.
4. Support cables at appropriate intervals.
5. Do NOT route cables where they may be at risk from lightning strikes (for
example, overexposed roofs).
6. Leave sufficient length so the sensor can be removed from the stack/duct
and laid on the ground or platform without disconnecting.
4.3.3 Grounding the Sensor
The sensor heads are electrically grounded to the ductwork by the mechanical
connection made between each sensor and the socket/flange, and also by a
grounding strap (supplied). 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.
 It is recommended to use the grounding strap (or earth wire) to ensure the
sensor body is firmly grounded to the metallic stack wall.