Instruction manual

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FAILED will show. Let the instrument clear and repeat the cali-
bration process. If the instrument will not pass, remove the in-
strument from service. Consult the factory in the event of any
failure.
CAL
See Calibration section on page 28.
O2 TEST
Prior to starting this test prepare the necessary gas (either
100% nitrogen or 100% methane)
From the working display press & hold the TICK/MENU BUT-
TON (B) until the display reads USER MENU SHOW TIME.
Press the SAVE/ZERO BUTTON (C) to scroll to USER MENU
O2 TEST.
Press the TICK/MENU BUTTON (B) to select this feature. At-
tach the prepared gas. During the test, the gas type and the
time remaining in seconds will be displayed. After the test PASS
or FAILED will be displayed. It is not possible to manually stop
the test once it is started. At the end of the test O2 TEST
(PASSED or FAILED) will be indicated. Pressing the POWER/
MUTE BUTTON (A) will save the results and return to the USER
MENU.
GAS TYPE
From the working display access the menu by pressing & hold-
ing the TICK/MENU BUTTON (B) until the display reads USER
MENU SHOW TIME.
Press the SAVE/ZERO BUTTON (C) until the display reads USER
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MENU GAS TYPE. Press the TICK/MENU BUTTON (B) to se-
lect this feature. Press the TICK/MENU BUTTON (B) to select
NAT for methane based calibration readings. Using the SAVE/
ZERO BUTTON (C) will select PRO for propane based calibra-
tion readings. Press the POWER/MUTE BUTTON (A) to save
the changes and return to the USER MENU.
CAL LOG
From the working display access the menu by pressing and
holding the TICK/MENU BUTTON (B) until the display reads
USER MENU SHOW TIME. Press the SAVE/ZERO BUTTON
(C) to scroll to USER MENU CAL LOG. Press the TICK/MENU
BUTTON (B) to select this feature.
The heading will display CAL DATE and the last calibration of
each sensor will be displayed. Press the POWER/MUTE BUT-
TON (A) to return to the USER MENU.
SES LOG
From the working display access the menu by pressing and
holding the TICK/MENU BUTTON (B) until the display reads
USER MENU SHOW TIME. Press the SAVE/ZERO BUTTON
(C) to scroll to USER MENU SES LOG. Press the TICK/MENU
BUTTON (B) to select the feature. The heading will display SES-
SION: XXX (indicating record number) and the date/time of the
record. Below will include the recorded concentrations of each
sensor installed. The SAVE/ZERO BUTTON (C) advances to