GAS Gasmaster, Инструкция по установке, эксплуатации и обслуживанию

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35
It is essential that any safety system such as
Gasmaster is routinely checked. Gas Alarm
Systems offer service contracts to ensure that this
equipment is fully operational at all times. As a
minimum, Gas Alarm Systems recommend that
systems are calibrated and tested on a sixmonthly
basis. Sensors should be changed as advised in the
detector manual.
Note: a ‘calibration due’ warning message may be
flagged six months after the last service*. The warning
LED will light and the message will be shown in
the “Warnings menu (lists warnings present on the
system)” on page 26. This message can be reset using
Gasmaster PC, which also allows the period after which
the message is displayed to be adjusted.
*Or when the system was last powered-up.
4.1 Functional Testing
Gasmaster allows you to test relays, force inputs into
alarm state, and force analogue outputs to verify the
correct operation of the Gasmaster system and its
interfaces with external equipment. These functions are
available in the Supervisor menu under Test.
Please note that using this function will activate the
appropriate relays, audible visual alarm drives and
analogue outputs. Ensure necessary precautions are
taken prior to using test functions.
The options available in Test can be found in section
3.11 on page 30, along with a description of each
function.
4.2 System Inhibit
Inputs can be temporarily inhibited so as not to
cause alarms. This may be necessary when calibrating
detectors, or when operations are carried out close
to a sensor which may trigger an alarm (for example
soldering near a smoke detector). Input channels can
be inhibited individually or all at once. The ‘inhibit’
option is available in the Supervisor menu, see section
3.6 on page 20 and the Menu System Overview on
page 25 in the Operation chapter for details of this
function.
If it is necessary to permanently disable a channel,
enter Supervisor mode and set the relevant detector
Type to Unused (see page 33). The channel display
will be no longer shown, and the power supply will be
removed from the detector.
Warning
Gas Alarm Systems strongly recommends that
remote inhibit switches be key operated only,
and that access to the key should be restricted to
authorised personnel. A Gasmaster system that has
been inhibited without other safety precautions
being in place may not provide the protection for
which it was designed. Steps should be taken to
ensure that all appropriate personnel are aware
when a Gasmaster system is inhibited.
How to perform Inhibit
1. From the normal operating display, press the
Continue  button to enter the menu system.
2. Use the Up  and Down  buttons as necessary to
select Supervisor and press Continue

.
3. Enter the password (the default password is ZZZ),
press Continue

.
See section 3.7 in Operation for details on entering
Supervisor mode.
4. How to set global inhibit:
From the Supervisor menu, scroll down to Inhibit
and press Continue  . Select All and press Continue

. Use the Up

or Down

button to set inhibit
to INHIBIT ON, press Continue  to accept. Use the
Back

button to return to the Supervisor menu.
The Inhibit icons will appear on the channel display.
How to set channel inhibit:
Channel inhibit can be selected from the Inhibit
menu or within the Zero or Calibrate menu.
Follow the instructions provided above, selecting
the Channel #n (where n represents the channel
number) in place of All.
Ensure all inhibits are removed when maintenance
activities are complete.
4. Maintenance