Model TC-55-TCD Detector
- The thermal conductivity detector (TCD) is a universal detector with a ppm to % level range. The detector is described below:
- The Model 55 has a thermal conductivity (TCD) cell with a sealed reference, a low voltage power supply, and a Wheatstone bridge with an electrometer. The electrometer output is 0-10 VDC. The customer needs a separate ADC channel to feed the electrometer signal into the GC’s data system. Alternately, PID Analyzers sells a data system (Model --) that will feed the signal into a separate PC.
- he TCD is sensitive (ppm) and a universal detector for most compounds. It has a wide dynamic range (>105).
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Specifications
| Species measured: | Detection limit: | Linear Range: | Detector: |
| Universal response for most compounds | <10 ppm of H2 or He <20 ppb of P |
> 105 | 2.5'' D x 5'' L |
| Electronics enclosure (FC55): | Power consumption: | Instrument operating conditions: | |
| Weight: 3.5 lbs. Size: 6'' W x 7'' L x 3.5'' H |
< 2 watt maximum | 5-40 degrees C, 0-95% RH (non-condensing) | |
Features
| Easy to install | Selectivity | Wide linear dynamic range | High sensitivity |
| Improves response for a variety of compounds | > 105) | < 10 ppm of H2 or He detection limits --- | |
| Adaptability | Used by environmental agencies worldwide | Display | ADC |
| Is readily adaptable to any chromatograph. | Our 2 line by 16 character display can be backlit; used for range and background readings. | Our 16 bit ADC provides a resolution of 1 part in 64,000 and our signal algorithm minimizes noise by signal averaging in the msec range. | |
| Programmable Voltage output | |||
| 0-10VDC | |||
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