MSA SUPREMATouch MCP 20, Руководство по эксплуатации

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212
Sensor Data
GB
SUPREMATouch
16.10 Explosion-proof Push-Button Detector with Barrier Z 787
Fig. 141
The cable screen is only connected to the SUPREMA.
Simulation Effect
Normal operation
END OF LINE resistor 2K2connected according
to circuit diagram
Normal operation
Alarm
END OF LINE resistor 2K2 connected according
to circuit diagramConnect resistor 1.0 K 1% 0.5
W between terminals 3 and 4
Alarm message
RESET
Connect wire jumper between terminals 3 and 4
Alarm message disappears, normal opera-
tion.After max. 45 s failure message appears.
Open-circuit of line
END OF LINE resistor 2K2 not connected
Failure message
Line short-circuit
END OF LINE resistor short-circuited
Failure message
*1 Connect push-button detector according to manufacturer’s specification;
MEDC NG16 6JF Type BGI WIRING DIAGRAM BGE/I/W + PBE/IW
Contact type: NORMALLY OPEN (terminal 2–3 inside the detector)
Carry out installation according to NFPA 72
•
With resistor 2.2 kOhms / 0.5 W in series with the contact; max. 10 Pieces
• With zener diode 10 V / 1.3 W in series with the contact; max. 20 Pieces
Check polarity
*2 End of Line Resistor 2K2 / 0.5 W to be mounted in the last mounting support of the detection zone circuit or in the portable detector
according to the documents specified under *1.
*3 Indication of leakage current. In case of failure, the “OPEN COLLECTOR“ transistor is conducting to terminal 5
Connection module: MAI30
Connection data
Maximum nominal current 42 mA
Maximum nominal voltage 22 V
Power consumption
≤
1.5 W (including cable length)
Cable type 2-core, 80 % screened
Maximum loop resistance 50 ohms (cable resistance)
Maximum cable length 2000 m (1.5 mm
2
cross section per wire)
Cross section per wire allowed 0.5–2.5 mm
2