Putting The Transmitter Into Operation; Transmitter Without Power Supply; Transmitter With Power Supply - Dräger VarioGard IR EX Instructions For Use Manual

Putting the Transmitter into Operation

The VarioGard transmitter is calibrated before supply and is immediately
ready for use following installation and a sensor warm-up phase of about 10
minutes.

Transmitter Without Power Supply

•
To prevent false alarms, deactivate the alarm triggering function of the
controller, if necessary.
Switch on the power supply to the system. The transmitter enters its warm-up
phase. The warm-up phase is indicated by the issue of a maintenance signal.
The transmitter is then in normal measuring mode.
•
Check signal transmission to the controller and alarm triggering with test
gas.
•
To activate the alarm triggering function on the controller, reset the
system to normal operating status, if necessary.

Transmitter With Power Supply

•
Switch on the power supply to the system. The transmitter enters its
warm-up phase. The warm-up phase is indicated by the issue of a
maintenance signal. The transmitter is then in normal measuring mode.
•
Check the function of the transmitter and alarm triggering with test gas.
The transmitter can also be operated via a controller. In this case, the
optional 4 .. 20 mA interface, order no. 8315839, is required.
Putting into operation is then the same as for the transmitter without power
supply.
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