Page 27
ZONESENSE DH4
OPERATORS MANUAL
9
Specifications
Power Supply
Mains Supply Voltage
204 to 264VAC 47 – 63 Hz
Main Control Board Power Supply
Set to 27.2VDC - Modulated: 27.2V with no
alarm condition, with the battery fully charged
and the ambient inside cabinet temperature
is 25°C
Power Supply Output Current Limiting
max current 1.6A
P/S, Battery Charger and Battery Monitoring
Yes
Battery Over Discharge Protection
Yes ( Deep discharge cut off 21.2VDC )
Max. Battery Size and Type
2 X 12V - 7AH sealed lead acid connected in
series
Mains Fuse
0.5A
Supply Fault Indication Volts High
(at room temperature) Volts Low
28VDC
23.5V
Main Board quiescent current
20mA
Dimensions
Size
ABS (BX1)
Metal (BX10)
360mm (W) x 300mm (H) x 80mm (D)
360mm (W) x 300mm (H) x 80mm (D)
Environmental Operating Conditions
Temperature range
-5
˚
C to +55
˚
C
Relative humidity
25% to 75%
Detector Circuits
Number of Circuits
4
Zone circuit monitoring
Open and short circuit
Maximum quiescent detector current
4mA
Zone circuit EOL value
10uF
Maximum cable length / DC Resistance
3km / 50
Ω
Maximum cable capacitance
1µF
Recommended Cable Size
2 core 1.5mm² to 2.5mm²
Recommended MCP internal resistor value
470
Ω
to 680
Ω
Short circuit current limiting per zone
25mA
Max. number of detectors & MCP’s per zone
40 (influenced by the number & type of
different devices)
Outputs
Alarm output 1 & 2 [supervised]
250mA each, S/C protected
Door Holder output 1 & 2 [unsupervised]
250mA each, S/C protected
Voltage Free Contacts Outputs
Fire Output
NO, NC & COM Contacts @ 1A
Fault Output
NO, NC & COM Contacts @ 1A
Auxiliary Outputs
Aux +/- 24VDC
Supervised & current limited to 150mA
Auxiliary Inputs
Class Change - Unsupervised, non-latching
Required I/P- 0VDC to operate - closing
contact
Alert - Unsupervised, non-latching
Required I/P- 0VDC to operate - closing
contact