41
Gas Modules are positioned a indicated in the diagram above.
7.0 SYSTEM DIAGNOSTICS
7.1
STATUS LEDS
Situated on the keyboard display panel are 6 LED status indicators:-
ON: This is illuminated when the instrument is switched on.
LOW BATT: This is illuminated when the main battery requires re-charging.
SERVICE: This is illuminated when the particle filter requires replacing.
FAULT: This is illuminated when a fault or warning situation arises, for further detail see the DIAG-
NOSTICS -> SYSTEM menu option
IMPORTANT: Certain faults remain indicated even after the condition has been cleared.
These may be manually cleared through the SETUP->SYSTEM->CLEAR FAULTS menu
option.
STAND BY: This LED indicates sleep and wake facility is active.
CHARGE: This LED indicates instrument battery is being charged.
7.2
DIAGNOSTIC MENU
The Diagnostics menu provides analysis of system performance with reference to individual cells,
filters etc.
Cell EMFs: This is maintenance information which indicates the true state of the cells and electronic
system. This is specifically of use when the product is being serviced.
Cell Zeros: Indicates the zero calibration voltage of the cells after the last calibration was com-
pleted. The value for O
2
represents the span voltage (V).
Cell Life: Indicates the cell life in ppm days. Indicates the history of usage of the cell. This informa-
tion is useful when a product is being serviced.
CO
O2
NO
"
GAS MAINFOLD
CONN16 CONN15 CONN14 CONN13 CONN12 DCONN11 CONN10 CONN9 C ONN8 C ONN7
CO
O2
NO
SO
2
ALWAYS FITTED
ON ALL MODELS
FT1200-2A ONLY
FT1300-1 ONLY
FT1200-1 & FT1300-1
SO
2
FIRETRON
®
ANALYZERS
F1
F2
F3
F4
ON
STANDBY
SERVICE
CHARGE
LOW BATT
FAULT
ENTER
PROBE
Flue Gas
Draft
Exhaust
1
2
Hold 2secs.
On/Off
