EN
14302224.0
1
01/2023
EN/DE
Additional operating instructions TC82, TC83, intrinsically safe designs (Ex i)
11
3.3 Locking screw
Always tighten the locking screw to prevent unintended opening
of the head with flameproof enclosure.
Before opening the head, always loosen the locking screw
sufficiently.
3.4 Electrical mounting
Using a transmitter/digital display (option):
Observe the contents of the operating instructions for the transmitter/digital display (see
scope of delivery).
Built-in transmitters/digital displays have own certificates. For instruments with built-in
transmitter or digital display, the permissible ambient temperature ranges specified in their
certificates also apply to the entire instrument.
Cable glands
Requirements for meeting ingress protection:
■
Only use cable glands within their indicated clamping area (cable diameter suitable for
the cable gland).
■
Do not use the lower clamping area with very soft cable types.
■
Only use round cables (if necessary, slightly oval in cross-section).
■
Do not twist the cable.
■
Repeated opening/closing is possible; however only if necessary, as it might have a
detrimental effect on the ingress protection
■
For cable with a pronounced cold-flow behaviour the gland must be fully tightened.
Cable glands affects the permissible ambient temperature. Refer to the related
table “Cable entry”
3. Commissioning, operation
