MSA SUPREMATouch MCP 20, Руководство по эксплуатации

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Start-Up
GB
SUPREMATouch
13.4 Preadjusting Passive Detectors
For passive detectors some sensor type-dependent presettings are necessary in the first commis-
sioning and also when replacing a sensor. The operating and maintenance instructions of the
sensor to be connected must also be followed.
NOTICE
If errors occur during start-up which cannot be corrected with the System Fail Messages table in
chapter 6.4 "System Fail Messages" or the entries in the logbook, call in an MSA service techni-
cian to correct the problem.
In order to avoid false alarms during the commissioning of sensors, MSA recommends locking all
affected measuring points before starting.
Preadjustment of bridge current
See chapter 7.9 "Setting the Bridge Current"for details.
Preadjustment of Zero/Sensitivity
After the sensors have been allowed to stabilize for a sufficient period of time–which depends on
the types of sensors and measuring components (see the associated sensor manual)–the MAI
module must be first calibrated, which includes a preadjustment.
Preadjusting Active Transmitters (MAI Module)
For active transmitters no preadjustments are necessary. The buttons for setting the bridge
voltage, the zero point, and the sensitivity are inactive.
After the supply voltage has been turned on and the system has started successfully, the active
transmitters can be connected to the SUPREMA without any further preadjustments. In case of
systems with passive and active transmitters, MSA recommends to adjust the passive detectors
before the active transmitters are connected.
13.5 First Calibration with Pre-Adjustment
See chapter 7.3 "First Calibration with Pre-Adjustment" for details.
13.6 Completing Startup
To check if all adjustments are correct, MSA recommends that all inputs are tested using test gas.
Verify that the correct alarm is triggered and that the correct relay driver output is actuated. Keep
a record of this test.
Start-up is complete after a successful final check of the SUPREMATouch system and of the
completed installation and calibration procedures. Now the external alarm and warning systems
can be connected.
WARNING!
To guarantee the unambiguity of catalytic combustion sensor operation ensure (e.g. by checking
with hand-held test instruments) each time that the environmental atmosphere to be monitored by
the sensors is free of combustible gases before switching on the sensors and the system.