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NEO Monitors LaserGas - Model III SP -Single Path Analyser for Oxygen
LaserGas™ III SP is the third generation in-situ analyzer, designed for safety applications with a special focus on SIL-applications and Ex-d. A compact sized instrument which is easy to install. The instrument is a placed in a sealed housing which eliminates the need for instrument purging.The instrument does not require regular maintenance. The monitor is mounted directly onto flanges, which include purge gas connections and a tilting mechanism for easy alignment. Continuous purge flow prevents dust and other contamination from settling on the optical windows. Once power and data lines are connected, measurements are performed in real-time.
- 3. Gen compact LaserGas electronics
- For ATEX Ex-d and Class I Division 1 areas
- Fast response time
- Low power < 10 Watt
- Suitable for SIL2 applications
- No interference from other gases
- Stable calibration, no zero drift
- No gas sampling: In-situ measurement
- Safety application
- Zero gas application
- No consumables
- Safety application
- Chemical industry (inertisation control of reactors, Vinyl Chloride or PVC, Acryl Acid. Solvent acid, carbon black etc
- Petrochemical industry: FCC units, tail gas treament, flare gas monitoring, vent headers of incinerators, process heaters etc.
- Steel industry: Coke oven gas, converter coal gas, reheating furnaces
- and more
- In-situ monitoring
- Highly reliable real time analyzer
- Low maintenance cost
- Reduce emission to the environment
- Easy to install and operate
- Reduce daily operation costs
- Optimize process
- Well proven measurement technique
- Less fuel consumptions
- Reduced downtime
- Suitable for SIL2
- Detection limit (O2): 100 ppm **
- Max. process gas temprature: 1500 °C
- Max. process gas pressure: 8 bar abs
- Optical path length: Typically 0,5 - 20 m
- Repeatability: Application dependet 1% of range (gas & application spesific)
Environmental conditions
- Operating temperature: -40 ºC to +65 ºC
- Storage temperature: -40 ºC to +70 ºC
- Protection classification: IP65
Inputs / Outputs
- Analog output (3): 4 - 20 mA current loop (concentration and transmission)
- Digital output: 10/100 Base T Ethernet (Modbus TCP)
- Relay output (2): High gas, warning and fault (normally closed)
- Analog input: 4 - 20 mA process temperature and pressure reading
Ratings
- Power supply: 24VDC range 18-32 VDC
- Power consumption : Max. 10 W
- 4 – 20 mA output: 500 Ohm max. load impedance, not isolated
- Relay output: 1 A at 30 V DC/AC
Installation and Operation
- Flange dimension: DN50/PN10 or ANSI 2’’/150 lbs (other dimensions on request)
- Alignment tolerances: Flanges parallel within 1.5º
- Purging of windows Dry and oil-free pressurised air or gas, or by fan
- Purge flow: 10-50 l/min ( application dependent)
- 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
- ATEX zone 1: II 2 G Ex d [op is] IIC T4 Gb
- (TU/RU) II 2 D Ex tb IIIC T78°C Db
- II 2 D Ex tb IIIC T88°C Db (Lasergas III Ext)
- CSA: Class I Div. 1, Groups B, C and D
- ATEX rating connection box:
- II 2 GD Ex e IIC T5 Gb
- -40°C ≤TA≤65°C
- Functional safety: Designed according to SIL 2; IEC 61508
Dimension and weight
- Transmitter and recevier unit (TU/RU):
- 215 mm (length, add
- 50 mm for purge unit) x
- 125 mm (diameter),
- 3,5 kg each
- Window unit (optional):
- Wu 60 (length)
- Wu 100 (length)
- TU/RU connection box: 260 x 160 x 90 mm, 2,5kg
**NOTE: Detection limits are specified as the 95% confidence interval for 1 m optical path and gas temperature / pressure = 25ºC / 1 bar abs. Measured in N2.