Dräger VarioGard IR EX, Instructions For Use Manual, Page: 32 / 43

Seite 32
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.