Man-1112 Sigma XT+_23 Page 9 of 52
Local fire relay contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
First stage contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
Second stage contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
Extract contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
Zone quiescent current 0mA minimum, 2mA maximum See tables 2 and 3 for detector types
Terminal capacity 0.5mm
2
to 2.5mm
2
solid or stranded wire
Number of detectors per zone Dependent on type See table 2
Number of sounders per circuit Dependent on type and current consumption See table 4 for sounder types
Detection circuit end of line 6K8 +/- 5% ½ Watt resistor Supplied in terminals
Monitored input end of line 6K8 +/- 5% ½ Watt resistor Supplied in terminals
Sounder circuit end of line 10K +/- 5% ¼ Watt resistor Supplied in terminals
Extinguishant output end of line 1N4004 Diode Supplied in terminals
No. of detection circuits Two to eight. 21 VDC Dependent on model
No. of sounder circuits Dependent on model 18 to 30V DC 2 x on detection section –1
st
stage and
1 x 2
nd
stage per exting area.
2
nd
stage sounders are outputs
to alarm devices as required by
EN12094-1
Extinguishant release output 18 to 30V DC. Fused at 1 Amp 1 Amp maximum load –for 5 minutes
3 Amps for 20 milliseconds
Voltage reversing DC with
calibration facility
Extinguishant release delay Adjustable 0 to 60 seconds (+/- 10%) 5 second steps
Extinguishant release duration Adjustable 60 to 300 seconds 5 second steps
SIL, AL, FLT, RST inputs Switched -ve, min resistance 0 ohms, max resistance 100
Ohms
Only to be used with Aux ROV terminal Switched DC
Zone normal threshold (Allowable
EOL)
8K ohm to 1K ohm Use 6K8 end of line resistor
Detector alarm threshold 999 ohms to 400 ohms Nominal trigger resistance 470 ohms
Call point alarm threshold 399 ohms to 100 ohms Nominal trigger resistance 270 ohms
Short circuit threshold 99 ohms to 0 ohms
Head removal condition 15.5 to 17.5 volts 2-wire detector base or schottky diode
base
Cabling FP200 or equivalent (maximum capacitance 1uF max
inductance 1 mH
Metal cable glands must be used
Monitored inputs normal threshold
(Allowable EOL)
10K ohm to 2K ohm
Monitored inputs alarm threshold 2K ohms to 150 ohms +/- 5%
Monitored inputs Short circuit
threshold
140 ohms to 0 ohms +/- 5%
Status unit/Ancillary board
connection
Two wire RS485 connection (EIA-485 specification) Maximum of 7 units per area- RS485
data cable.
Compatible status units - K911000M8,
K911000F8, K911100M8, K911100F8,
K911110M8, K911110F8, W911000W8,
W911100W8, W911110W8
(EIA-485 specification)
Status unit power output 18 to 30V DC, Fused at 500mA with electronic fuse 250 milliamp maximum load Max 3 per module – More status
units must be supplied with
external power supply
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