Description
NEO Monitors LaserGas™ is using Tuneable Laser Absorption Spectroscopy (TLAS) i.e. a non-contact optical measurement method employing solid-state laser sources. Therefore, the sensor remains unaffected by contaminants and corrosives and does not require regular maintenance. The laser beam is coupled into a measurement cell, where it is reflected one time from a flat mirror in order to enhance the analyzer sensitivity.
The R2P Monitor employs a measurement cell concept to combine extractive measurement with a compact analyzer design. The measurement path length will enhance the detection limit. Heated and nonheated cells are available. To avoid fouling of optical parts in the measurement cell the cleanliness of the sample gas must be ensured. Filtering the sample gas in an appropriate extractive system may be required for some applications.
Technical data
Technical data LaserGas™ R2P
Specifications
Optical path length: 0.7 m (Can be delivered with Heated cell); Max 180°C
Response time: Typically 2 – 10 sec; (depending on gas flow)
Repeatability: 1% of range (gas and application spesific)
Environmental conditions
Operating temperature: -20 °C to +55 °C
Storage temperature: -20 °C to +55 °C
Protection classification: 19” Rack
Inputs / Outputs
Analog output (3): 4 – 20 mA current loop (concentration, transmission)
Digital output: TCP/IP, MODBUS, Optional fibre optic
Relay output (3): High gas, Maintenance; Warning and Fault (normally closed-circuit relays)
Ratings
Input power supply: 100/240 VAC, 50/60 Hz
4 – 20 mA output: 500 Ohm max. isolated
Relay output: 1 A at 30 V DC/AC
Installation and Operation
Gas inlet/ outlet: 6 mm or 1/4“ Swagelok (other dimensions on request)
Sample gas flow: Recommended 1 – 5 l/min
Sample inlet pressure: 0.2 – 2.0 Bar abs (2.9- 29 psia)
Sample input temprature: Max 180 °C
Purging of laser / mirror chamber (optinal):
Dry and oil-free; pressurised air or gas, Nitrogen for O2 and H2O applications
Purge flow: Maximum 0.5 l/min
Maintenance
Visual inspection: Recommended every 6 – 12 months (no consumables needed)
Remote instrument check by Ethernet connection or external modem possible check
Calibration: Recommended every 12 months
Safety
Laser class: Class 1 according to IEC 60825-1
Dimension and weight
19” Rack version: 483 x 506 x 266 mm, 10 – 14 kg
