Switching Off; Instrument Storage; Confidence Signals; Display Symbols - Linde G-TECTA 4G Operating Manual

Note: The instrument will time out in 10 seconds
then change to normal operating mode, without
performing an auto zero, if the mode button is
not pressed.
AUTO ZERO? AUTO ZERO
7 secs
? ? ? ? ? ? ?
CH4 %LEL CO ppm
0
0.0
0.0 20.9
H2S ppm
O2 %
Note: If Auto Zero fails, a warning message will be
displayed and an X will appear against the sensor
that has failed (See the Troubleshooting section if
this occurs).

Switching Off

Press and hold the mode button for 5 seconds, the
display will count down until the display shows
OFF. If you release the mode button during the
countdown, the G-TECTA
operating mode.

Instrument Storage

In order to optimise sensor performance and lifetime,
your G-TECTA 4G instrument should be stored in a
®
safe, non-hazardous area. The area should be clean
and dry, between temperature ranges 0-30°C, and at
a humidity level of 20-90%RH.
Normal Operation and Confidence Signals
CH4 %LEL CO ppm
0
0.0
20.9
0.0
H2S ppm
O2 %
The instrument will display up to four gas readings
and each channel will display the gas types, units
and current readings.
AUTO ZERO
CH4 CO CH4 CO
H2S O2 H2S O2
4G will return to normal
®
Screen Icons
Start Up
Battery
!
Always check the gas type being monitored
by your instrument and ensure you have been
trained in your site health and safety procedures.

Confidence Signals

To give you added confidence the instrument
is operating correctly, the G-TECTA
(every 10 seconds):
1. Sound a short beep
2. Flash a blue LED
In addition the " " icon will flash on the display.

Display Symbols

Battery
!
When the battery is fully charged, the battery icon
will show 6 black bars. When the battery is empty,
the battery icon flashes and the instrument will
sound warning beeps.
WARNING
When the battery charge is

completely empty, G-TECTA
off automatically.
Flashing icon,
G-TECTA 4G in
®
normal operating mode
4G will
®
4G will switch
®
7