Routine Maintenance And Scheduled Testing; Routine Maintenance; Routine Testing - Honeywell MSR PolyGard 2 MGC2-K User Manual

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User Manual - PolyGard 2
Multi-Gas-Controller MGC2-K Honeywell
Page
38

11 Routine Maintenance and Scheduled Testing

This chapter describes how to perform common maintenance operations and system testing. The required
frequency of inspection and maintenance will depend on local site conditions and will need to be established
through experience. Please refer to IEC/EN 60079-29-2 or other local or national regulations for guidance on
establishing an appropriate maintenance routine.

11.1 Routine Maintenance

CAUTION
Test outputs will be generated, and relays will be activated during testing.
Ensure that relay activated output systems (i.e. emergency deluge / sirens etc.) are isolated before starting the
Relay and mA Output tests.
CAUTION
While an Operator could Force a channel, a Service password is required to isolate services, carry out tests,
Clear Force, and restore the system to full operational status.
For these reasons Operators should carry out visual inspections and cleaning only, unless under the direct
supervision of the Service engineer.
Weekly Checks
• Visually inspect all cables and conduits for loose connections, security of attachment, and signs of damage.

• Wipe the PolyGard 2 Multi-Gas Controller with a soft damp cloth or use PC Screen cleaner.
• Check for dust contamination.
• Periodically exercise the outputs to confirm their functionality (see Caution above).

11.2 Routine Testing

It is normal practice to sound site alarms weekly, both to check they work and to accustom personnel to the
sound they make.
As it involves isolating / inhibiting emergency systems during testing, it might be more prudent to test the

PolyGard 2 relays and mA output only on a planned monthly basis.
Always have alternative safety arrangements in place and alert your personnel before and during testing.
Exercising the Audio/Visual Alarms
Audio/visual alarms can be tested by switching the Dedicated Alarms On.
Exercising the Relays
If the relays are switching main voltages, hazardous live terminals may be present. Ensure that all mains
current is isolated and dissipated before touching live terminals.
Relay output channels can be tested by forcing the relays to an active state.
Checking the mA Output
Milliamp (mA) output can be tested by forcing the mA output.
Mandatory Warning
WARNING
FOR SAFETY REASONS THIS EQUIPMENT MUST BE OPERATED BY QUALIFIED PERSONNEL ONLY.
READ AND UNDERSTAND THE INSTRUCTION MANUAL COMPLETELY BEFORE OPERATING OR
SERVICING THE EQUIPMENT.
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PolyGard is a registered trademark of MSR GAMGC2-K_E_0320
Phone 0049(0)8531/9004-0 Fax: 0049(0)8531/9004-54 Specification subject to change without notice
MSR-Electronic GmbH, Bgm.-Schoenbauer-Str. 13, D 94060 Pocking www:msr-electronic.de Made in Germany