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NEO LaserGas III

LaserGas III Open Path NH3 Gas Detection

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NEO TDL LaserGas III Open Path Detection

NEO Monitors new LaserGas™ III Open Path NH3 Gas Detector is specifically designed for service in hazardous areas. Based on our third generation LaserGas™ Technology, the entire instrument is built into compact flameproof enclosures making it fit for zone 1 applications. The LaserGas™ III NH3 OP consists of a transmitter and receiver unit that is mounted diametrically opposite each other at distances up to 100 meters. The laser light is sent from the transmitter to the receiver and any NH3 concentration changes along the optical path from the transmitter to the receiver are detected in real-time.


 Features

  • Gen. 3 compact LaserGasTM Technology
  • For operation in zone 1 (Explosion proof, Ex-d)
  • Automatic health check
  • Low power < 15 Watt
  • No need for regular replacement of parts
  • No interference from other gases
  • Factory calibrated, no zero drift

Applications

  • Compact high performance gas monitor for ambient long distance monitoring
  • No cross interference from other gases
  • Easy to install
  • Limited need for maintenance
  • Low cost of ownership
  • Proven and reliable

Key Benefits

  • Compact high performance gas monitor for ambient long distance monitoring
  • No cross interference from other gases
  • Easy to install
  • Limited need for maintenance
  • Low cost of ownership
  • Proven and reliable

Technical Specifications

General
 
Type:  Near IR Diode Laser Spectroscopy
IR-source: Diode laser Class1 M, eye safe
Detected gas: NH3
Range:  Minimum 0-5000 ppm*m 
Path lenght: 5-100 m 
   
Self-test:Calibration: Continuous Factory set, no field calibration necessary 
   
Performance   
Zero:  <+/- 1% of full scale 
Repeatability: Response time:  <+/- 1% of full scale 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:
Power consumption: 
24V DC range 18-32V DC < 15W 
   
Temperature range   
Storage temperature:
-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
   
   
Approvals
 
IECEx/ATEX zone 1:
(TU/RU)
II 2 G Ex d [op is] IIC T6 II 2 D Ex tb IIIC T88 °C
II 2 D Ex tb IIIC T88 °C

 Optional Junction Box:

GRP/Aluminium
ATEX: I 2 G Ex e I IC T4/T5/T6

Ingress:  IP66/IP67 IEC 60529 
SIL:  Suitable for use in SIL2 systems 

subject to change without notifications

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