NO. NX2010597/ NO. 72983_C
06/04/2021
23 (35)
4P
R
-F
14
-D
case was not successfully calibrated.
To repeat the calibration procedure, open the cover of the LYNX 4400 and press the reset button
(PB1). This will reinitialise the case.
Finally, press the calibration button (PB2), holding it for 3 s, to start another calibration run. If a
system fault persists, there must be a problem in the voltage measurement chain:
On the PPACS
On the Harting connectors
On the LYNX DFD
IMPORTANT! A calibration run can be started at any time (without red LED LD1 being lit)
If calibration is unsuccessful, the directional detector is inoperative.
Launching a test of the LYNX 4400
Pressing the "Test" button (PB4) triggers a test procedure to check operation of the detector.
During the test, the display indicates “TEST”.
The two remote indication contacts close and the Red and Green indicator lights flash on the
Lynx board and on the external indicator light for 1 minute. The "POLY" polyphase counter is
incremented. You can stop an ongoing test by pressing the "Test reset" button (PB2).