Is Hand-Held Calibrator; Use Of Hart Communications - Crowcon IR Display Instructions D'installation, D'utilisation Et De Maintenance

3.2.2 IS Hand-Held Calibrator

The IR Display can be used as a field calibration tool. Supplied with a 1.5 m IS connecting
lead, the IS Hand-Held Calibrator can be temporarily connected to IRmax fitted with an IS
Barrier Module to enable gas testing and calibration. Connect the IR Display to the IRmax
when required via the 4-pole connectors as shown in Diagram 9. The dust-cap must always be
re-fitted to the IS Barrier Module after the IR Display has been disconnected.

3.2.3 Use of HART communications

Test terminals are provided on all IR Display units. HART units can be connected to these
terminals. HART communications enable the use of portable terminals to monitor and
control detectors. Instructions for connecting the HART unit with the IR Display are given
in Section 11 on page 24.
HART communication is an option and must be specified when ordering. It is not
possible to convert a non HART compatible IR Display to use for HART operation.
Installation Installation
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