Crowcon Xgard ESU Environmental Sampling Unit
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Crowcon Xgard ESU Environmental Sampling Unit
The Crowcon Environmental Sampling Unit (ESU) is a unique product that provides a cost-effective solution for monitoring high-density gases such as chlorine, sulphur dioxide, and flammable vapours in environments where conventional sensors cannot be placed.
The sampling chamber is fitted with an electric fan, which draws an air sample via a pipe.
Xgard gas detectors are fitted to the chamber to monitor for flammable or toxic gases.
Low purchase and maintenance costs
- The ESU is ideal for monitoring large enclosed areas such as chlorine stores. One unit can monitor up to 12 metres of pipe, eliminating the need for multiple sensors mounted at floor level.
- Fewer sensors mean lower maintenance costs.
Adaptable installation options
- The ESU is supplied with a range of accessories to suit any installation requirements. It can monitor from a single point, along an entire floor space, or even in areas subject to flooding, such as a wet well.
- The ESU’s rugged design and high-impact ABS enclosure make it suitable for harsh environments.
Wide range of sensors
- The ESU is used with Crowcon’s versatile Xgard detectors, which enable the monitoring of a wide range of gases.
- A hazardous area certified version is available for safely monitoring flammable vapours.
High integrity design
- The ESU is designed to connect to Crowcon’s class-leading Gasmaster or Vortex control systems. These systems display the gas level and monitor the ESU fan to ensure it has not slowed or stopped.
- An alarm is raised in the event of a gas leak, fan blockage or fan failure.
Order Information
Safe Area ESU
| Part Code | Description |
|---|---|
| C011004 | Xgard ESU for one detector |
| C011031 | Xgard ESU for two detectors |
Hazardous Area ESU
Certification: ATEX II 2 G – Ex m IIC T4 (Fan), ATEX II 2 G – Ex d IIC T6 (Fan junction box)
| Part Code | Description |
|---|---|
| C01987 | Xgard ESU Ex, for one detector |
| C011029 | Xgard ESU Ex, for two detectors |
ESU Accessories
| Part Code | Description |
|---|---|
| M04109 | UPVC pipe 2″ NB x 2 metres |
| M04111 | UPVC elbow 2″ NB |
| M04112 | UPVC Tee 2″ NB |
| M04161 | UPVC straight coupler 2″ NB |
| M04113 | UPVC end cap, class D, 2″ |
| M04167 | Pipe clip – 2″ saddle type |
| ESU Part Numbers |
Hazardous area certified ESU: C01987 (for one sensor) C011029 (for two sensors) C011030 (for three sensors) Non certified ESU (safe area): C011004 (for one sensor) C011031 (for two sensors) C011032 (for three sensors) |
|---|---|
| Dimensions | 397 (w) x 363 (h) x 180 (d) mm (15.3 x 10.6 x 7 inches) |
| Material | Polycarbonate |
| Fan Power | 3 Watts |
| Supply Voltage (Fan) | 24v DC nominal from Gasmaster or Vortex |
| Operating Temperature | -10 to +50ºC (14 to 104ºF) |
| Approval Code (certified type only) |
Fan: ATEX II 2 G EEx m IIC T4 Fan junction box: ATEX II 2 G EEx d IIC T6 |
| Certificate Number |
Fan: Baseefa 03 ATEX 0033X Fan junction box: Baseefa 04 ATEX 0024X |
| Piping | 60mm Diameter PVC (2” pipe) |
| Maximum Pipe Length | 12 Metres (36’) |
| Weight (excluding piping) | 3.5kg (7.7 lbs) excluding gas detector |
| Accessories |
The ESU is supplied with a set of fittings comprising: • Retaining nut, washer and gasket for mounting the Xgard detector(s) • 2 elbows • 2 end caps • 1 T-piece • 2 reducing bushes • 4 pipe clamps 2” pipe is available separately in 2 metre lengths. |
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