Gas Chromatography Analytical Instruments

LRT-660 Series Instrument

Introduction
LRT-660 series gas chromatography can detect various impurities in different high purified gases, liquid oxygen, ethylene and propylene. The Minimum detectable quantity of CH4 is smaller than 1ppb. The advantages of this LRT-660 instrument will provide user the most perfect applications.

New Pattern Detector
The series instruments are equipped with the PDHID detector. The detector utilizes a stable, low power and pulsed DC discharge in helium as the ionization source.  The eluent from the column, flowing counter to the flow of helium from the discharge zone, is ionized by photons from the helium discharge zone. Resulting electrons are focused toward the collector electrode by the two bias electrodes. The response to fixed gases is positive, with MDQs in the low ppb range.

Advanced Techniques

  1. Backflush and heartcut techniques
  2. Carrier gas purify technique
  3. Equipped with super high pure pressure regulator

More Predominant Capability

  1. Non-destructive and highly sensitive, response to low ppb
  2. More reliable and stable quality
  3. Meet different user’s requirements
  4. More precise inject sample system
  5. Advanced system design

Specifications


Detector

Theory

Pulsed Discharge Ionization Detector(PDID)

Mains(line):                          

115/230V~50/60Hz, 175VA

Pressure:

6.9kPa(1psi)operating,6.9MPa(1000psi)max. working

Maximum temperature:

400℃

Range

10×:  10nA full-scale
1×:  100nA full-scale

Sensitivity :

CH4 <1ppb

Connection

1/8”  VCR   1/16”  ferrule

Gas Requirements

Carrier gas

N6.0 He 20-40ml/min

Discharge gas

N6.0 He 20-40ml/min

Actuator gas

Clean Dry Air 3.0bar

Dimension

Racked

19” ×225×450mm

Sampling


Applications
LRT-660 series GC has been applied in many industrial applications including iron and steel factory, petrochemical plant, electron plant and gas production.

 

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