53
5 Maintenance
5.3.1
ppm range
CAUTION!
Atmospheric humidity can cause interference in the
semiconductor sensor. Therefore, never adjust the
device without using conditioner fitted between the
device and the test set!
Tools:
z
Test head HG 4
z
Test set
with
integrated conditioner
(e.g. SPE ppm, SPE 2, SPE DUO)
OR
Test set
without
integrated conditioner
(e.g. SPE HG, SPE VOL, SPE Y) and
additionally
a conditioner, which must
be fitted between the device and the
test set
Zero point test gas:
Fresh air
Indication accuracy
test gas:
1.00 % vol. CH
4
Setting the zero point
z
Connect the device to the test set.
To do so, follow the steps indicated in the operating instructions
for the tester. Be sure to remember the conditioner if it is not
already included in the test set.
z
Add fresh air as the test gas.
z
Wait until the value on the LCD no longer flashes.
z
Press the On/Off key to confirm.
Setting the indication accuracy
z
Connect the device to the test set.
To do so, follow the steps indicated in the operating instructions
for the tester. Be sure to remember the conditioner if it is not
already included in the test set.
z
Place the test head on the device.
