Frontline 404

1-4 Channel Gas Alarm

The Frontline 404 has been designed with features that provide an effective response to the detection of gas hazards in a wide range of environments, from commercial premises through to heavy industrial applications requiring hazardous area sensing.  Typical monitor locations are public buildings, boiler plant rooms, swimming pools, water treatment works, H&V control systems, manufacturing and processing plants.

Additional Information

- Versatile System Configuration
- Flammable, Oxygen and Toxic Gases
- 1 to 4 sensors
- Plug in sensor channel cards
- Two alarm stages
- Selectable alarm relays
- Analogue 4-20mA output
- Delay to alarm option

Specifications

Sensor Points

1 ~ 4

Measurements

  • Combustible Gas - L.E.L., % vol, ppm
  • Toxic Gas - ppm, % vol
  • Oxygen - % vol Depletion/Enrichment
  • Any 4~20mA input signal

Power Supply

230/115v AC or 24v DC and specials

Power Consumption

12 watts - full alarm

Indicators

  • Power - Green L.E.D
  • Mains Fail - power indicator change green to amber
  • Alarms - Red L.E.D.s
  • Fault - Amber L.E.D
  • Digital Display - 31/2 Digit - gas readout
  • Sensor channel selection indicator - Amber L.E.D
  • System test - Alarm L.E.D.s flashing
  • Alarm Relay Inhibit - Fault L.E.D on

Outputs

  • High Alarm Relay - Common D.P.C.O
    Normally energised or de-energised, latched or unlatched
  • Low Alarm Relay - Common D.P.C.O
    Normally energised or de-energised, latched or unlatched
  • Fault Alarm Relay - Common S.P.C.O
    Normally energised or de-energised
  • Channel Relays - 1 per channel high or low selectable S.P.C.O
    Normally energised or de-energised, latched or unlatched
  • General Alarm Relay - resetable S.P.C.O
  • All contacts rated 5A-230vAC
  • Analogue 4 ~ 20mA output per channel
  • Output 24vDC @ 100mA max - auxiliary equipment (non inductive)

Audible Alarm

  • Permanent mute option.
    Lo, Hi, Fault alarms

Alarm Settings

  • Digital Setting (fully adjustable between zero and fullscale)
  • Delay to alarm T1 - 10 seconds, T2 - 30 seconds, T1 + T2 - 10 minutes

Sensor inputs

  • Bridge type 3 wire mV input
  • 4~20mA (electrochemical/infrared)

 Sensor cable

3 core 1.5mm2 screened < 1.5km

Miscellaneous

  • EMC approvals EN50270 Marine EN60945
  • Enclosure - cable entry - bottom/rear
  • Operating temperature -10 to +50˚C
  • Relative Humidity 0 - 90%
  • Protection IP52 - option IP65
  • Optional backup battery
  • Field terminals - 2.5mm quick release
  • System/lamp test
  • Remote Accept/Reset
  • Alarm isolate during service - inhibit

 Dimensions

  • Size - 310W x 265H x 75Dmm
  • Weight - 3.6kg
Technical Drawings

Technical drawings

Fixed gas phone

Contact Our Service Team Now - 0141 771 7749

Our dedicated team of Service and Project Engineers have a range of expertise and knowledge and are on hand to discuss your fixed fire and gas detection needs.  Call now on 0141 771 7749 or visit our Contact Us section on the website for more information.

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