Oldham SAFEYE
Open Path has been designed to detect hydrocarbons in industrial applications. They are used most often in addition to point type gas detectors to monitor a wider area.
The SafEye Xenon 700 consists of an advanced Xenon Flash infrared transmitter (source) and infrared detector (receiver), separated over a line of sight from 13 feet (4 meters) up to 460 feet (140 meters) to detect and quantify flammable gas presence, even when challenged by extremely harsh environments where dust, fog, rain, snow or vibration can cause a high reduction of signal.
The open path analyzes atmospheric absorption at three selected spectral bands, two in a region where the target gas absorbs and one where it does not absorb. The ratio between these absorption lines can provide accurate information of the gas concentration along an optical path.
When no gas is present, the two signals are equal whereas if gas is present, measurement and reference signals are different.
These three detectors contribute to the reduction of false diagnostics and assure high immunity to false alarms.
Moreover, thanks to infrared technology, the SafEye Xenon 700 can maintain operational integrity up to 90% obscuration and accepts up to 1° misalignment tolerance.
The SafEye Xenon 700 includes heated optics on the transmitter and receiver to address icing, condensation and snow. No matter the application, the SafEye Xenon 700 is an ideal open path.
Specifications
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System:
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Open path SafEye Xenon 700
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Model:
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701
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702
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703
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721
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722
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723
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Distance (m):
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4-20
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15-70
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50-140
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4-20
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15-70
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50-140
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Distance (ft) :
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13-66
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50-230
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165-430
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13-66
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50-230
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165-430
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Detected Gas:
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C1-C8
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Ethylene / LPG
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Immunity to false alarm:
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Not influenced by solar radiation, hydrocarbon flames and other external IR radiation sources
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Spectral response:
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2.0-4.0 µm
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Sensitivity range:
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0-5 LEL.m (optional 0-2 LEL.m)
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Displacement tolerance:
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+/- 1°
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Drift:
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Long term +/- 5% of full scale
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Temperature range:
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-40°C (-40°F) to +55°C (+131°F)
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Response time:
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T90 = 3 sec
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Electrical specifications
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Power supply:
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18-32 VDC (24 VDC nominal)
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Power consumption:
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- Detector : 150 mA (300 mA peak)
- Source : 100 mA (300 mA peak)
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Electrical connection:
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2* ¾ “ NPT or 2* M25
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Outputs
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4-20 mA current output:
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- Maximum load: 600 Ohm (18-32 VAC)
- 4-20 mA: normal mode, gas reading
- 0 mA: fault
- 1 mA: zero calibration mode
- 2 mA: obscuration/misalignment/beam block
- 3 mA: maintenance call
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RS485 Interface - Modbus compatible:
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To connect PC or handheld communicator kit
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Relays:
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Alarm (NO) and Fault (NC)
SPST dry contacts rated 5A at 30 VDC or 250 VAC
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Mechanical specification
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Weight:
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- Detector: 4.2 kg (9.2 Lb)
- Source: 4.6 kg (10.1 Lb)
- Tilt mount: 1.9 kg (4.2 Lb)
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Ingress Protection:
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- IP 66 and 67
- NEMA 250 6P
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Dimensions:
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- Detector: 210 x 145 x 154 mm (8.2 x 5.7 x 6 inch)
- Source: 255 x 135 x 175 mm (10 x 5.3 x 6.9 inch)
- Tilt mount: 120 x 120 x 140 mm (4.7 x 4.7 x 5.5 inch)
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Enclosure:
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The detector, the source and the tilt mount are in stainless steel 316L
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Approvals:
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- Electromagnetic compatibility
- ATEX Ex II 2(1) GD, EEx de ia [ia] IIC T5 (+55°C)
- SIL2 approved according to IEC 61508
- IECEx Ex d e ia [ia] IIC T5 (Ta = -40°C to +55°C or -40°C to +70°C)
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Environment:
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Meets MIL-STD-810C for humidity, salt, fog, vibration, mechanical shock, high temperature, low temperature
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Warranty:
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- System: 3 years
- Lamp: 10 years
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Accessories:
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The handheld communicator kit is an intrinsically safe diagnostic/calibration/interrogation tool with quick plug connection, which provides easy and economical SafEye maintenance.The handheld unit will provide verification, gas concentration, status and instructions for correcting the detector’s parameters and can assist one-person installation and maintenance and recommend corrective actions including cleaning the window, aligning the detector/source.
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Alignment telescope
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