S4S Combi16



The Combi has been designed to operate in the full range of environments from commercial premises through to heavy industrial applications which may require hazardous area sensing.
Typical monitor locations are - public buildings, car parks, tunnels, breweries, boiler plant rooms, water treatment works, H&V control, manufacturing, process plants, horticulture, hotels, offices.


Sensor points
1-8 mV Catalytic sensor inputs (using plug in mV converter cards)
16 direct 4~20mA (subject to amount of inputs used as mV. Eg. 4mV inputs + 12mA inputs = 16 inputs)
Combustible Gas - L.E.L., % vol
Toxic Gas - ppm, % vol
Oxygen - % vol - Depletion/Enrichment
Refrigerant - ppm
Any 4~20mA transmitter
Indicators - control unit concentration
Dot matrix LCD 4 line 40 character - indicating sensor
location, gas type, (rising or falling alarms), alarm status,
system fault, sensor line fault, sensor fault, inhibit,
real time clock, event memory
Red LED - global alarm, Amber LED - global fault,
Amber LED-inhibit

8 user selectable zone/voting – with NE/ND option
and delay to de-energise
Relay contacts - 2 D.P.C.O / 6 S.P.C.O. rated
@ 5A-230v AC
Factory set 1 common low alarm D.P.C.O or group 1
1 common high alarm D.P.C.O or group 2
1 common overange S.P.C.O or group 3
1 common fault alarm S.P.C.O or group 4
4 user selectable S.P.C.O groups 5 to 8
General alarm relay - resetable S.P.C.O. for sounders etc.
Optional - 2 x 32 relays - first 16 programmable
with pattern/event with NE/ND options and delay to
de-energise - 48 are single event
Optional - remote addressable 4 way relay unit
RS232 data log - event log
Modbus - RS485 x2
Combi Soft: full data logging /management tool - option.
Individual sensor logging - intervals 1-60 mins storage
readings 2880
Audible alarm
Alarm/Fault - permanent mute option
230/115v AC or 24v DC ±15%
Control unit 7.5w quiescent 17w full alarm
Sensor - 1.25w
Internal power supply: 20 sensors max. 21+ sensors -
11A/24vDC Auxiliary Power Pack required C1541/C1293

S4S Combi16 Datasheet