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LaserGas II Single Path Gas Analyzer

Product Code: NEO
Availability: In Stock
Qty: +
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Single Path Monitors are designed for in-situ measurement in stacks, ducts, or reactors with typical path lengths in the range 0.5 to 20 meters. By-pass and extractive configurations are also possible.The monitors’ compact design comprises the transmitter unit with laser module; collimating optics, and main electronics and the receiver unit with focusing lens, photo detector and receiver electronics.The LaserGas II SP Monitor utilizes a transmitter / receiver configuration (mounted diametrically opposite each other) to measure the average gas concentration along the optical line-of-sight.

  • Real-time: Response time down to one second
  • No gas sampling: IN-SITU measurement
  • No cross interference from background gases
  • Stable calibration, no zero drift
  • Works in high temperature, high dust, corrosive gas conditions
  • Line measurement across the entire stack
  • No moving parts, no consumables
  • ATEX and CSA certified
  • TÜV approved technology
C2H2 H2O NH3 + H2O
CO NO2 H2S + CO2
CO2 O2  

Optical path length Typically 0.5 – 20 m (1-65 Feet) Longer Distance per request

Response time 1 – 2 sec

Averaging time Rolling average from 2 seconds to 24 hours (exp. decay)

Repeatability +/- Detection limit or +/- 1% of reading, whichever is greater

Linearity < 1%

Environmental Conditions
Operating temperature -20 °C to +55 °C (-4°F to 131°F) (special version up to +65 °C on request)

Storage temperature -20 °C to +55 °C (-4°F to 131°F)

Protection classification IP66

Inputs / Outputs
Analog output (3) 4 – 20 mA current loop

Digital output

RS – 232 format, Optional 10 or 10/100 Base T Ethernet, Optional fiber optic (ASCII – format)

Relay output (3) High gas-, Maintenance-, Warning - and Fault relays (normally closed-circuit relays)

Analog input 4 – 20 mA process temperature and pressure reading

Input power supply unit 100 – 240 VAC, 50/60 Hz, 0.36 – 0.26 A

Output power supply unit 24 VDC, 900 – 1000 mA

Input transmitter unit 18 – 36 VDC, max. 20 W

4 – 20 mA output 500 Ohm max. Isolated

Relay output 1 A at 30 V DC/AC

Installation and Operation
Flange dimension DN50/PN10 or ANSI 2"/150lbs (other dimensions on request) Alignment tolerances Flanges parallel within 1.5°
Purging of windows Dry and oil-free pressurized air or gas, or by fan
Purge flow 10 – 50 l/min per flange (application dependent)

Visual inspection Recommended every 6 – 12 months (no consumables needed)

Remote instrument check by Ethernet connection or external modem possible

Calibration Check recommended every 12 months

Validation In-situ span and zero check with optional internal cell (EN 14181 compliant)

Laser class Class 1 according to IEC 60825-1

CE Certified, conformant with LVD 73/23/EEC, including 93/68/EEC EMC Conformant with directive 2004/108/EC

Explosion Protection (optional)
ATEX zone 1 II 2 G Ex px op is Gb II T4, II 2 D Ex pD 21 IP 66 T64°C

ATEX zone 2 II 3 G Ex nA nC op is Gc IIC T4, II 3 D Ex td A22 IP65 T100°C

CSA Class I, Div. 2, Groups A, B, C and D; Temp. Code T4; non-incendive

Dimension and weight
Transmitter unit 405 (plus 65 for purge unit) x 270 x 170 mm, 6.2 kg

Transmitter unit (Ex version) 405 (plus 65 for purge unit) x 270 x 310 mm, 7.9 kg

Receiver unit 355 (plus 65 for purge unit) x 125 x 125 mm, 3.9 kg

Power supply unit 180 x 85 x 70 mm, 1.6 kg

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