Instruction Manual FireGuard 2
Servicing
70
13542E/5
9.4
Recalibrating the FireGuard 2
9.4.1
General information on recalibrating the FireGuard 2
Recalibrating the photometer can result in deviations from the previous measuring value as
the instrument is newly reset to a reference value (checking unit). The instrument should
be cleaned before recalibration according to Section 9.2.
▪
Recalibration can be triggered via the SICON-C portable control unit, or automatically by
plugging in the checking unit. The automatic triggering of a recalibration can be acti-
vated under
Recalibration\General\Auto start recal.
.
▪
The nominal values on two checking units can be saved in the FireGuard 2. The checking
units are identified via a serial number.
▪
The checking unit currently in use must be defined in the
Recalibration\C1\Cont. ac-
tive
menu. Checking unit 1 is set as standard.
9.4.2
Setting checking unit number in use
WORKSTEP
ADDITIONAL INFO / IMAGES
1.
Switch to service mode as described in Sec-
tion 7.11.
2.
Select the checking unit currently in use in the
Recalibration \ C1 \ Cont. active
menu.
9.4.3
Manual adjustment with a SICON-C
The following procedure describes how manual adjustment is made with a SICON-C:
WORKSTEP
ADDITIONAL INFO / IMAGES
1.
Plug in the SICON-C on the SIPORT 2 con-
nection box.
2.
Remove the contamination protection by re-
moving both screws (circles) on the photom-
eter.
The photometer can be left in the
measuring position when installed in walls
and ceilings. When installed in suspended
ceilings, the instrument has to be removed
from the measuring position according to
Section 4.3.
3.
Switch the photometer to service mode as
described in Section 7.11.
4.
Check the serial number of the checking unit
against the number of the instrument. These
must match.
