RKI Instruments GX-2012 Manual - Manual (Page 33)

GX-2012 Operator’s Manual Start Up, Normal Mode • 25
11. If the GX-2012 experiences a sensor failure during start up, a screen
indicating which sensor failed displays. In the example below, the CO
sensor has failed.
If you wish to continue, press and release the RESET SILENCE button to
acknowledge the failure. The gas reading for the failed sensor will be
replaced by “---”. Replace the failed sensor as soon as possible.
12. The GX-2012 is now operating in Normal Mode and monitoring for gas
in Measuring Mode. The Normal Operation Screen appears.
The concentrations of the target gases are displayed along with the time and
battery charge level. The heart symbol displayed just to the left of the battery
charge level flashes while the instrument is functioning properly. If it
disappears or is steadily on, the unit is experiencing a microprocessor error.
The fan symbol just to the left of the heart symbol spins while the pump is
operating.
Turning On the GX-2012 in Normal Mode
With All Modes Active
If the L./B. MODE item in Maintenance Mode is set to LC, bH, or LC bH
(see “Updating the Leak Check/Bar Hole Mode Setting” on page 137), then
the user must select Normal Mode during the start up sequence to operate in
Normal Mode. The standard factory setting for L./B. MODE is OFF. See
“Chapter 4: Using the GX-2012 in Bar Hole Mode” on page 73 for a
description of Bar Hole Mode or “Chapter 5: Using the GX-2012 in Leak
Check Mode” on page 84 for a description of Leak Check Mode.
The following description of the GX-2012 start up sequence assumes that the
following menu items in Maintenance Mode are turned on: LNCH BRK, ID
FAIL
ppm
SENSOR
CO
0
20.9
0
0.0
%LEL
%
ppm
ppm
CH
4
O
2
22:37
CO
H
2
S