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 63 of 82
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3.
The prompt “RESET TO FACTORY SETTINGS” will be shown. Press enter to proceed or left to
cancel.
Figure 75: Reset to Factory Defaults
4. The factory defaults saving screen will be shown. After this the system will reset
Figure 76: Reverting to Factory Defaults
5. The new detector attached screen will be shown (see Section 6.3.1.1). Press centre to
acknowledge and proceed. The device may now be configured, see Section 5.
Reset Latched Catalytic
This section applies only to GG2 Displays with a catalytic detector attached. Methane gas concentrations
above the specified range may cause incorrect operation due to limitations of the catalytic bead. The
catalytic sensor will latch the reading to 5.25% v/v when the gas concentration exceeds 5.25% v/v and
will require the user to externally verify the ambient gas concentration is within the measurement range
prior to resetting the latch.
WARNING!
Before resetting a catalytic detector latch, the actual methane
concentration at the detector must be confirmed safe; otherwise, the
device may show false readings.
To reset a latched catalytic from the GG2 Display HMI, perform the following steps:
1. Naviga
te to the “RESET LATCHED CATALYTIC” screen, refer to Section 6.1.2 for details on
navigating the menu.
2. The authorisation screen will be shown (refer to Section 6.1.2.1). Press the centre segment to
proceed.
3. On the next screen press centre to proceed and reset the catalytic latch or press left to cancel.
