Ampcontrol Pty Ltd
– ABN 28 000 915 542
GG2 DISPLAY USER MANUAL
GG2B023 Version 3
– JUNE/19
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 48 of 82
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GG2 Detector warmup
On power-up any attached GG2 Detector will take some time to warm up, known as the warmup period.
During the warmup period the GG2 Detectors do not provide accurate measurements. Each GG2
Detector type has its own warmup period, which is documented in the respective manual/datasheets.
The current gas reading will flash on the screen (1s on 0.5s off) while the home screen is in warm-up
mode. The behaviour of the external interfaces during the warmup period is specified in the relevant
sections. During the warm-up period, the Calibration menu (
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) is i
naccessible.
In cases where the warmup period is equal to or less than the initialisation period (60s) the home screen
in warmup mode will not be seen as the warm-up time may have already elapsed. The warmup timer
may take a few seconds to appear.
Figure 55 - The Home Screen when in warmup
Sleep Mode
When the display is in sleep mode (as shown in Figure 56), power is not supplied to the detector port.
Sleep mode or detector isolation is a safe state for connection/disconnection of detectors or whenever
the detector port must be exposed. Sleep mode can normally only be entered by powering up the display
without a detector attached.
By powering up the display without a detector attached, the display will first attempt to communicate with
a detector and must therefore apply power, refer to Section 6.2.1.
Figure 56: Display Sleep Mode
Detector Isolation
Detector isolation only differs from sleep mode in how it is triggered and what is displayed on the screen.
Detector isolation is an intentional state and is entered when disconnecting a detector, refer to Section
6.3.2.
