
The G-CEM4000 is a multi-channel analyzer using Non-Dispersive Infrared Absorption (NDIR) technology. It provides high accuracy and low maintenance measurements of CO, CO2, NO, NO2, SO2, HCl, & H2O. Its performance can be verified automatically or manually on demand by injection of zero and span protocol gases into the probe sample chamber.
Multiple gases in one probe (up to 6 max)
No sampling system required
Insitu calibration verification
Fully compliant to 40CFR60 and 75
Remote MODEM/Web access
Automatic daily calibrations and quarterly audits
Low cost NDIR insitu online continuous monitoring for 6 gases in one probe, two insertion lengths
Simple installation with only TWO modules, insitu probe flange mounted and Signal Processor, both NEMA 4X rated
Most suitable for EPA compliance emissions monitoring as well as closed loop online insitu process control with 10 secs response time
Heated probe available for wet applications
Summary Specification
Measurements
Main measurement channels (1-7): Any combination of up to seven gases from CO/CO2 /NO/NO2 /SO2 /HCl/UHC/H2O
Measurement Limits (maximum): CO/NO/NO2 /HCl/UHC 3000 vpm; SO2 25000 vpm; CO2 /H2 O 25%
Measurement Spans: CO/NO/NO2 /SO2 /HCl/UHC selectable up to 9,999vpm; CO2 /H2 O selectable up to 99%
Note that although very low spans can be configured, this should not be done without consideration of the measurement uncertainty.>
Measurement Uncertainty
CO2 0.2%; H2O ?0.2%; other gases 10vpm or ±2% of measurement (whichever is the greater)
Measurement Temperature (Flue gas)
0-200? C (up to 400? C with high temperature probe)
Measurement Units
Vpm (% for CO2 and H2 O); mg/m3; ?mg/Nm3
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Display
Via PC running SmartCOM software; real-time measurements; operating parameters; diagnostic information; set-up menus
Outputs
Analogue: One for each main measurement channel (located in SCU) (channels 1 to 7) 0/4-20mA isolated 500 max. Load; fully configurable in measurement units (vpm or %, mg/m3; mg/Nm3), and span
Logic: (Located in SCU)
Inputs
Analogue: Three 4-20mA inputs for normalizing measurements; ±200V DC common mode voltage range (three of these inputs incorporate isolated 24V DC supplies to power loop-powered 2 or 3-wire transducers)
Serial Port: For connection to bi-directional 4-wire data bus (located in Station terminating at the CDC when installed as part Control unit) of an integrated emission monitoring (IEM) system
Ambient Temperature: All units are designed to operate in ambient temperatures of -20?C to +50C; Extreme climatic conditions may require further protection
Enclosures: All units are sealed to IP65 (NEMA 4) standards and are suitable for outdoor installation
Power Requirements: Power Supply Unit-85-264V AC- 47-62Hz - 200VA
Purge Gas Requirements: Compressed air/N2 Clean and dry to –20 C; Normal operation 5 l/min; Calibration (10 minutes) 10 l/min
Dimensions
Transceiver and probe
| Overall length |
2450mm |
| Widest diameter |
350mm |
| Probe length |
2150mm |
| Transceiver length |
300mm |
| Transceiver diameter |
350mm |
| Probe weight |
68kg |
| Transceiver weight |
28kg |
Gas Control Unit
| Height |
800mm |
| Width |
1000mm |
| Depth |
200mm |
| Weight |
100kg |
CDC
| Height |
300mm |
| Width |
250mm |
| Depth |
315mm |
| Weight |
26kg |
Junction Box
| Height |
160mm |
| Width |
160mm |
| Depth |
90mm |
| Weight |
2kg |
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