A flameproof (Ex d) pellistor-based flammable gas detector with a display & 4-20mA output for hydrocarbon, hydrogen & petrol gas and vapour detection.
The Crowcon Flamgard Plus is a Flameproof (Exd) flammable gas detector which uses poison-resistant pellistors to detect explosive levels of hydrocarbons, hydrogen and other combustible gases and vapours, including aviation fuel and leaded petrol vapours.
Features
Non-intrusive calibration
- Calibration can be performed locally without hot work permits – minimising operational downtime.
- Local display and buttons enable calibration without opening the junction box.
- Magnetic wand supplied.
Flexible output options
- 4-20mA current sink or source – works with a wide selection of control panels.
- Three-wire format.
- Optional relays for alarm and fault – can be used for switching local alarms.
Rugged and reliable
- 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.
- Flameproof (Ex d).
Low cost of ownership
- Non-intrusive one-person calibration – easy to operate and maintain.
- Long-life sensors – minimise interruptions to on-site activity.
- Simple parts replacement.
Range of sensors
- Choice of catalytic beads for a wide selection of flammable gases and vapours – this flammable, hydrocarbon and hydrogen gas detector can be tailored to your requirements.
Specifications
| 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, and fault |
| Display | 3-digit LCD back-lit display, LED status indicator |
| Calibration method | Via magnetically operated buttons |
| Electrical output | Three-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, six 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 |
