Each gas sensor continuously monitors the atmosphere, reporting any hazardous conditions to the control unit, for display by the alpha numeric screen indicating the reporting sensor, gas type, concentration and alarm status. Alarm levels that are exceeded will automatically activate a variety of signal outputs including analogue/digital data and user selectable relays.
The Combi system operates on a 4-core (addressable) or 2/3 core (direct) cable network and has the capacity to monitor up to 64 addressable and 16 direct sensors of various gas types. Larger systems offering unlimited sensors can be achieved using multiple combi units housed in a 19” rack based system. The Combi is supplied ready to use with pre-calibrated gas
sensors and provides for additional sensors that can be easily added to any point of the network.
Optional software (Combi Soft) allows full data logging facilities with system management providing real time views showing sensor locations, alarms status and actual gas values.
| Sensor Points | 1-64 addressable – Can bus – and/or |
| 16 direct 4~20mA | |
| Combi Plus - 128 addressable | |
| Measurements | 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 | |
| Outputs | 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 | |
| 1 common high alarm D.P.C.O | |
| 1 common overange S.P.C.O | |
| 1 common fault alarm S.P.C.O | |
| 4 user selectable S.P.C.O | |
| General alarm relay - resetable S.P.C.O. - for sounders etc. | |
| Optional - 64 relays - first 16 programmable with pattern/event with NE/ND options and delay to de-energise | |
| Optional - remote addressable 4 way relay unit | |
| 2 channel 4~20mA - assignable to any sensor | |
| RS232 data log - event log | |
| Modbus - RS485 x2 | |
| Combi Soft - full data logging and management tool - option. | |
| Audible alarm | Alarm/Fault - permanent mute option |
| Power | 230/115v AC or 24v DC |
| Control unit 7.5w quiescent 17w full alarm | |
| Sensor - 2.5w | |
| Internal power supply, - 20 sensors max, - 21+ sensors - PS10 Power Pack required | |
| Sensor Cable - Addressable Direct | Main network - 4 core (2 power - 2 comms) 1.5mm2 screened max length 1km 2/3 core |
| Miscellaneous | Enclosure cable entry - bottom, rear, top |
| Remote reset/mute | |
| Front panel button – key lock | |
| Repeater panel | |
| 16 way 4~20mA catalytic converter panel | |
| LED indication – Comms fail, Modbus fail, MPU fail | |
| Password protection - user mode/engineers mode | |
| LCD and LED dimming | |
| Environmental | Control unit - IP52 |
| Operating temperature -10 + 50˚C | |
| Dimensions | 315W x 265H x 95D - Combi panel |
| 315W x 265H x 95D - Auxiliary power pack | |
| Weight | 4.95Kg |
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DELIVERY OPTIONS:
UK Orders
There are various shipping options that you can select in the checkout area.
Standard Delivery FREE - Standard delivery items will be delivered via the Royal Mail in the UK.
Items generally take between 2-4 working days to arrive (Mon-Fri). If you place your order after 1PM Mon-Fri then please allow 2-4 working days from the following day.
Occasionally due to reasons out of our control such as bad shipping conditions in the Channel Islands items may take a day or two longer than usual to arrive.
Recorded Delivery £0.75 - Recorded delivery items will be delivered via the Royal Mail in the UK and will require a signature upon arrival.
Items generally take between 2-4 working days to arrive (Mon-Fri). If you place your order after 1PM Mon-Fri then please allow 2-4 working days from the following day.
Occasionally due to reasons out of our control such as bad shipping conditions in the Channel Islands items may take a day or two longer than usual to arrive.
All items are sent in protective jiffy bags and should reach you in an unopened and brand new condition.
International Orders
We accept orders from international customers as long as you are using either Visa or Mastercard as your payment method. We have two shipping options for International customers:
Standard Airmail Standard Airmail items will be delivered by your local postal service and should take between 3-7 days to reach the customer depending on the country where the order is being delivered. Standard Airmail does not provide a tracking number and is not insure for loss or damage. We cannot be held responsible for any International orders that go missing using standard Airmail.
We will not be held resonsible for any International orders that go missing in transit. There is always an added risk when sending items overseas. Unfortunately we cannot offer an insured service for International orders at present.
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