REV 0, June 2005Page 358
Operation Manual SUPREMA
12. Sensor Data Sheets
12.55 SUPREMA Sensor Data Sheet Explosions-Proof Fire Detec-
tor CERBERUS DO1101EX/DT1101EX with Barrier Z 787*
*1 Connect according to manufacturer´s specification. CERBERUS DO1101EX / DT1101EX: Document No.
e1469. Only the mounting support Order No. 45681-207 specified in the data sheets must be used. For
each detection zone circuit, max. 20 fire detectors are allowed. Carry out installation according to NFPA 72
*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 in *1.
*3 Indication of leakage current. In the case of failure, the „OPEN COLLECTOR” transistor is conducting
to terminal 5
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
Connection module: MFI 10 (Fire Input Module)
Configuration: External power supply, with Zener barrier
(Switch position S101: 1 + 2 = OFF, 3 + 4 = ON)
Set potentiometer P101 to left position.
Conditions for use: Mounting Wall mounting
Ingress protection IP 42 according to DIN 400 50
Explosion protection EEXib IICT4
Certificate DO 1101A-EX PTB 02 ATEX 2135
DT1101A-EX: PTB 02 ATEX 2097
Temperature DO1101: -25 °C to +50 °C
DT1101: -25 °C to +70 °C
Humidity DO1101: 0 ... 95 % rel. humidity; noncondensing
DT1101: 0 ... 100 % rel. hum.; surface condensing
Pressure 950 ... 1100 hPa
Weight approx. 130 g
Dimensions Diameter 115 mm x 55 mm including mounting
support
Housing material Plastic
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