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Product Features
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Local Calibration
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20mA current sink or source
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3 wire format
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IP65 as standard
Delivery options
At Cadmus Products, we prioritise efficient order delivery and offer competitive shipping rates worldwide. Our streamlined process ensures clarity and reliability for all your shipping requirements.
- We handle consignments of various sizes across the UK and globally, primarily using DHL, but may select other couriers for specific needs.
- For online laboratory product purchases, shipping costs are displayed at checkout. For quoted items, shipping prices will be included in your email quote.
- Please visit our shipping and delivery page for more information here.
The Crowcon Flamgard Plus is a flameproof (Ex d) pellistor based detector with display & 4-20mA output, for hydrocarbons, hydrogen & petrol vapours. The Flamgard Plus is a Flameproof (Exd) flammable gas detector which uses poison-resistant pellistors to detect explosive levels of hydrocarbons, hydrogen and other flammable gases and vapours, including aviation fuel and leaded petrol vapours.
Non-intrusive calibration
Non-intrusive calibration
- Calibration can be performed locally without the need for hot work permits – minimises operational down-time
- Local display and buttons enable calibration without opening the junction box
- 4-20mA current sink or source – works with a wide selection of control panels
- 3 wire format
- Optional relays for alarm and fault – can be used for switching local alarms
- Constructed using marine-grade aluminium with a stainless steel sensor housing – proven track record for operation in the harshest environments
- Ingress protection to IP65 as standard
- Non-intrusive one-person calibration – easy to operate and maintain
- Long-life sensors – keeps interruption to on-site activity to a minimum
- Simple parts replacement
- Choice of catalytic beads for a wide selection of flammable gases and vapours – gas detector tailored to your requirements
| Size | 200 x 115 x 115mm (7.9 x 6.1 x 6.1ins) |
| Weight | 2.2kg (4.9lbs) |
| Ingress protection | IP65 |
| Enclosure material | Junction box: Marine grade alloy Sensor housing: 316 stainless steel |
| Power | 10-30Vdc, 210mA max (relay version) 160mA max (non relay) |
| Cable entries | 2 x M20 or 1/2” NPT |
| Operating temperature | -10°C to +55°C (-14°F to 131°F) * |
| Humidity | 0 to 99% RH non-condensing |
| Relays (optional) | SPNO or SPNC contacts rated 30Vdc 1A (non-inductive load) for Alarm 1, Alarm 2, Fault |
| Display | 3-digit LCD back-lit display, LED status indicator |
| Calibration method | Via magnetically operated buttons |
| Electrical output | 3 wire 4-20mA, sink or source |
| Terminals | Suitable for up to 1.5mm2 cable |
| Sensor type | Catalytic bead |
| Repeatability | +/- 2% FSD typically |
| Zero drift | +/- 2% FSD, 6 months typically |
| Response time | T90 <15 seconds typically |
| Performance | Tested in accordance with EN60079-29-1 |
| Hazardous area zones | Zone 1 or 2 |
| Approvals | Ex II 2 G Ex db IIC T6 Tamb -20°C to +55°C |
| EMC compliance | EN 50270, FCC: CFR 47 Part 15, ICES-003 |
* Figures shown exclude the sensors – Please contact us for a full list of sensor operating temperatures
Gases and Ranges
| Gas | LEL (% vol.) | Range Available |
| Acetylene (C2H2)* | 2.3 | 0-100% LEL |
| Ammonia (NH3) | 15 | 0-100% LEL |
| Butane (C4H10) | 1.4 | 0-100% LEL |
| Ethanol (C2H5OH) | 3.1 | 0-100% LEL |
| Ethane (C2H6) | 2.4 | 0-100% LEL |
| Ethylene (C2H4) | 2.3 | 0-100% LEL |
| Hexane (C6H14) | 1.0 | 0-100% LEL |
| Hydrogen (H2) | 4 | 0-100% LEL |
| LPG | 2 | 0-100% LEL |
| Methane (CH4) | 4.4 | 0-100% LEL |
| Methanol (CH3OH) | 6 | 0-100% LEL |
| Pentane (C5H12) | 1.1 | 0-100% LEL |
| Petrol vapor | 1.3 | 0-100% LEL |
| Propane (C3H8) | 1.7 | 0-100% LEL |
| Propanol (C3H8O) | 2.1 | 0-100% LEL |
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