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NEO Monitors LaserGas - Model III OP NH3 -Gas Detector Sensor
LaserGas™ III Open Path gas detector is specifically designed for continuous monitoring in hazardous areas. Based on our third generation LaserGas™ Technology, the entire instrument is built into compact flameproof enclosures which makes it ideal for zone 1 locations. The LaserGas™ III OP consists of a transmitter and receiver unit that is mounted facing each other at distances up to 100 meters. The laser light is sent from the transmitter to the receiver and any changes in gas concentration along the optical path from the transmitter to the receiver are detected in real-time.
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- Gen. 3 compact LaserGas™ Technology
- For operation in zone 1 (Explosion proof, Ex-d)
- Automatic health check
- Low power < 15 Watt
- No consumables
- No interference from other gases
- No zero drift
- Oil and gas industry
- Petrochemical refineries
- Chemical plants
- Metal industry
- Fenceline monitoring
- Compact high performance gas monitor for ambient long distance monitoring.
- No cross interference from other gases
- Easy to install
- Low need for maintenance
- Low cost of ownership
- Proven and reliable
- No consumables
General
- Type: Near IR Diode Laser Spectroscopy
- IR-source: Diode laser Class1 M, eye safe
- Detected gas: NH3
- Range: 0-5000 ppm*m
- Path lenght: 5-100 m
- Self-test: Continuous
- Calibration: Factory set, no field calibration necessary
- LDL: 5ppm*m
Performance
- Zero: <+/- 1% of full scale
- Repeatability: <+/- 1% of full scale
- Response time: 5 sec (adjustable)
Optics
- Alignment: +/- 0.15 deg
- Obscuration: > 90%
Output signals
- Standard: 4-20 mA source or sink, max load impedance 500 Ohm
- Options: Ethernet
- Fault signals: Fault 1mA
- Beam Block 2 mA
- Warning 3 mA
Electrical
- Power Supply: 24V DC range 18-32V DC
- Power consumption: < 15W
Temprature range
- Storage temprature: -55 °C to 75 °C
- Operating: -40 °C to 65 °C
- Humidity (operational): 100% RH
Material
- TU and RU: Stainless steel (ASTM 316)
Dimensions / weight
- Footprint/weight: Ø 125mm x 250 mm/5.5 Kg (12 lbs.) per TU or RU
Maintenance
- Visual inspection: Recommended every
- 6 – 12 months (no consumables needed)
- Calibration: Check recommended every 12 months
Safety
- Laser class: Class 1 according to IEC 60825-1, eye safe
- CE: Certified
- EMC: Conformant with directive 2014/30/EU
Approvals
- IECEx/ATEX zone 1: II 2 G Ex d [op is] IIC T6
- (TU/RU) II 2 D Ex tb IIIC T88 °C
- Ingress: IP66/IP67 IEC 60529
Optional junction box (technical data)
- Junction box: GRP / aluminum
- Footprint Junction box: 250 mm x 250 mm/ 2.0 Kg (4.4 lbs. per Junction Box)
- ATEX rating: I I 2 G Ex e I IC T4/T5/T6