TECHNICAL SPECIFICATIONS
Measurement components
Measuring range
Measuring method
CH4
Methane
0 – 100 %
NDIR
CO2
Carbon dioxide
0 – 100 %
NDIRO2Oxygen
0 – 25 %
electrochemical, continuous
H2S
Hydrogen sulfide
LOW
0 - 200 / 1,000ppm
electrochemical, discontinuous
H2S
Hydrogen sulfide
STANDARD
0 - 2,000ppm / 4,000ppm
electrochemical, discontinuous
H2S
Hydrogen sulfide
HIGH
0 - 10,000ppm / 50,000ppm
electrochemical, continuous
H2
Hydrogen
0 - 1,000ppm
electrochemical, discontinuous
Calculated component
Calorific value: 0 – 50 MJ/m3; MJ/kg
HMI human machine interface
3.5” TFT color display
Backlit keyboard, password protected operation
4x analog output 4-20 mA, floating, max. load 500R
2 alarm relays, potential free contacts 24 Vdc/5 A
RS485 digital interface (Modbus RTU)
DIN-rail RS485 / Profibus converter
System safety components
Monitored cabinet ventilation fan
Stainless steel flow restrictor orifice
Sample gas shut-down solenoid valve
LEL (CH4) monitoring inside cabinet
Sample preparation
Stainless steel gas fittings with 1/8” ID threads
Electric gas cooler
Teflon particulate filter, internal Viton hosing
Monitored and regulated sample flow 40…60 l/h
Sample inlet pressure: -40 inH2O to +120 inH2O (-100 mbar to +300 mbar)
Sample venting: atmosphere pressure
Cabinet dimensions
Aluminum with anti-corrosive structural painting
27.55" x 23.61" x 8.26" (700 x 600 x 210 mm) ( H x W x D ) for wall or rack mounting
Weight / Protection
55lbs (25kg) / IP54
Ambient temperature
41°F …113°F (+5°C…+45°C) or -4°F …113°F (-20°C…+45°C) with cabinet heater
Installation site
Indoor or outdoor (rain and sun shade is mandatory user scope of supply)
Cabinet conditioning
Continuous, monitored fan ventilation
Cabinet heater 200 W (option)
Power supply
Universal 90 - 240 Vac / 47 - 63 Hz / 90 W (300 W with cabinet heater)
Data subject to change without notice
MRU Instruments, Inc.
Humble, Texas 77338
Tel.: (832) 230 - 0155
Fax: (832) 230 - 1553
info@mru-instruments.com
www.mru-instruments.com
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