Page 50
STT750
Temperature Transmitter User’s Manual
Revision 4
A.5 Conditions of Use” for Ex Equipment”, Hazardous
Location Equipment or “Schedule of Limitations”:
Consult the manufacturer for dimensional information on the flameproof joints for repair.
Painted surface of the STT750 may store electrostatic charge and become a source of
ignition in applications with a low relative humidity less than approximately30% relative
humidity where the painted surface is relatively free of surface contamination such as dirt,
dust or oil. Cleaning of the painted surface should only be done with a damp cloth.
Intrinsically Safe:
Must be installed per drawing 50091227
Division 2:
This equipment is suitable for use in a Class I, Division 2, Groups A, B, C, D; T4 or
Non-Hazardous Locations Only.
The installer shall provide transient over-voltage protection external to the equipment such
that the voltage at the supply terminal of the equipment does not exceed 140% of the
voltage rating of the equipment.
The enclosure is manufactured from low copper aluminium alloy. In rare cases, ignition
sources due to impact and friction sparks could occur. This shall be considered during
Installation, particularly if equipment is installed a Zone 0 location.
If a charge-generating mechanism is present, the exposed metallic part on the enclosure is
capable of storing a level of electrostatic that could become incendive for IIC gases.
Therefore, the user/ installer shall implement precautions to prevent the buildup of
electrostatic charge, e.g. earthing the metallic part. This is particularly important if
equipment is installed a Zone 0 location.
Summary of Contents for STT750 SmartLine
Page 51: ...Revision 4 STT750 Temperature Transmitter User s Manual Page 41 ...
Page 52: ...Page 42 STT750 Temperature Transmitter User s Manual Revision 4 ...
Page 53: ...Revision 4 STT750 Temperature Transmitter User s Manual Page 43 ...
Page 62: ...Page 52 STT750 Temperature Transmitter User s Manual Revision 4 ...
Page 63: ...Revision 4 STT750 Temperature Transmitter User s Manual Page 53 ...
Page 64: ...Page 54 STT750 Temperature Transmitter User s Manual Revision 4 ...
Page 65: ...Revision 4 STT750 Temperature Transmitter User s Manual Page 55 ...
Page 66: ...Page 56 STT750 Temperature Transmitter User s Manual Revision 4 ...