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The Model 204 is a continuous TCD Analyzer designed for continuous or process control. It has optional 4-20 mA output, RS485, MODBUS, 2-3 programmable setpoints, larger pump, bypass flow & and a 19" rack or industrial wall mount NEMA 4 enclosure.

This 204 has a rugged TCD with a sealed reference cell, Operator's Manual, configuration software and RS232 cable.

The detectors is the TCD

Specifications

Species measured: He, H₂, Ne, CO₂, binary gases with difference in thermal conductivity is required

Sensor(s): single- TCD only

Precision: +/- 2-3% of reading

Response time: <10 sec. to 90% response

Sample flow rate: > 1 LPM

Span Drift: <2% over 24 hours

Range: 100 ppm to 100%

Linear Range: See above

Power consumption: < 50 watts maximum; 115 VAC, 0.4 amps

Dimensions:

19'' Rack mount-19'' W x 5 ^1/4''H x 14''D

Wall-23''W x 21''H x 10''D

Weight:

19'' Rack mount-12.2 pounds TCD

Wall-19 pounds PTCD

Instrument operating conditions: 5-40 degrees C, 0-95% RH (non-condensing)

Performance: Depends on species being measured