ABB TZIDC Manual page 26

26 TZIDC DIGITAL POSITIONER | DS/TZIDC-EN REV. G
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... Use in potentially explosive atmospheres
Preconditions for safe operation of the positioner
When using in hazardous areas, observe the following points:
• Observe the specification and special conditions
applicable for the device in accordance with the
relevant valid certificate.
• Manipulation of the device in any form by the user is
not permitted. Only the manufacturer or an explosion
protection specialist may modify the device
• The IP 65 / NEMA 4x IP rating is only achieved if the
splash guard is screwed in place. Operating the unit
without splash guard cap is prohibited.
• The device may only be operated using instrument air
that is free from oil, water and dust. The use of
flammable gas, oxygen, or oxygen-enriched gas is not
permitted.
• High / recurring charging processes in gas zones must
be excluded by the operator.
Cable gland
Limited temperature range of the M20 × 1.5 plastic cable
gland for explosion protection variants:
• The permissible ambient temperature range is
−20 to 80 °C (−4 to 176 °F).
• When using the cable gland, you need to make sure
that the ambient temperature is within the
permissible range plus 10 K or that they are suited in
terms of the minimal ambient temperature.
• The cable gland must be installed in the housing with
a tightening torque of 3.8 Nm. When installing the
connection of the cable gland and cable, check for
tightness to ensure that the required IP rating is met.