- 11 -
5-6. LCD Indicator Icons
Item
Icon/Display
Description/Function
1
Numeric display
Displays gas concentration and the unit of measurement.
E.g. %LEL, ppb, ppm
2
FLOW
Flow rate is low. Linked with item 6.
3
ALARM1 ALARM2
1
st
and 2
nd
stage gas alarms.
4
SENS.
A sensor fault (e.g. broken wire) is present or incorrect
sensor unit is inserted.
5
CONV.
Broken pyrolyzer wire.
6
Flow rate
Represents the flow rate of sampled gas.
- Spinning fast: Flow rate is normal.
“FL500" indicated on
sub-display.
- Spinning slowly: Flowrate is reduced. Possible filter/tube
clogging.
“FL400” or less indicated on sub-display.
- Stopped: Flow rate is too low. Low flow rate alarm.
“FL300” or less indicated on sub-display.
7
Gas concentration on bar
graph
One bar represents 5% of the full scale value. The bar
graph value increases from left to right with the far right
being full scale value.
8
Sub-display
Displays information on setting, flow rate, etc.
(Administrator use)
9
TEST mode
Unit is in test mode.
10
MNT1 / MNT2 mode
Unit is in maintenance mode 1 or 2.
1
2
4
6
9
10
8
3
5
7
LCD
