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DISCOVERY PRODUCT GUIDE
Mode
Class
EN54-4
Application Temperature
Typical Max
Static Response Temperature °C
Min Typical Max
1
2
3
4
A1R
A2R
A2S
CR
(Type C)
25
25
25
55
50
50
50
80
54
54
54
84
57
61
61
90
65
70
70
100
5
CS
(TypeD)
55 80 84 90 100
Table 3 – Heat Detector Response Modes
Note, Ampac Discovery Heat Detectors are factory set to Type C Item Number, 201-0089 and Type D, Item
Number 201-0090.
For air temperature in the range 15°C to 55°C, the analogue value for a detector in mode 1 will correspond approximately to the air temperature.
7.2 Technical Data:
Specifications are typical and given at 23°C and 50% relative humidity unless specified otherwise.
Detector Type: Point type heat detector for fire detection and alarm systems for buildings
Detection Principle: Heat sensitive resistance
Supply Wiring:
Terminal Functions:
Two wire monitored supply, polarity insensitive
L1 and L2 supply in and out connections
Supply Voltage:
+R remote indicator positive connection (internal 2.2K
Ω resistance to positive)
-R remote indicator negative connection (internal 2.2K
Ω resistance to positive)
17 - 28V DC
Communication Protocol Apollo Discovery 5-9V peak to peak
Quiescent Current: 400µA at 24V DC
Power-up Surge Current: 1mA
Maximum power up time: 10s
Alarm Current, LED on: 3.5mA
Connects positive line through 4.5K
Ω (5mA maximum) Remote output characteristics:
Alarm level analogue value:
55
Alarm Indicator:
Temperature Range:
Operating Humidity:
Vibration, Impact &
Shock
IP Rating:
2 Light Emitting Diodes (LEDs); illuminating red in alarm. Optional remote LED
Maximum operating – refer table above
Minimum operating (no condensing/icing) -40°C
Storage -40°C to +80°C
0 to 90% relative humidity (no condensation)
To EN54-5: 2001
Dimensions:
Weights:
Material:
54 in accordance with BSEN60529
Detector: 100mm Dia x 42mm H, Detector in Base: 100mm Dia x 50mm H
Detector 105g, Detector in Base:160g
Detector housing: White polycarbonate rated V-0 in accordance with UL 94.
Terminals: Nickel plated stainless steel
13
MAN3050
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