OrthoPure FID Gas Chromatograph

Principle

The very weak current obtained in this way is ampliﬁed in an electrometer with high gain and directed to a data acquisition system. A polarization electrode is connected on the level of the nozzle and a collecting electrode with adjustable distance make the best results possible. Coupled with a methanizer (UMTR unit), it also detects traces of CO and CO2. The methaniser is foreseen to convert, in a catalytic reactor, traces of CO and CO2 into methane.

This reaction takes place at a temperature of ± 350°C in presence of Hydrogen in excess. With a properly adjusted temperature and ﬂowrate, the efﬁciency is almost of 100%. When supplied with high purity gases, the detection threshold can reach 1 ppb.

Type of configurations

DID Gas Chromatograph - 500

Process Line

This new line 500 has been designed for stand alone operation. Easy configuration and quick start-up make this new system ideal for process gas analysis.

In addition to its user-friendly interface (touch screen display), the new line 500 has its own chromatographic software that allows the concentration of each impurity to be displayed directly. Moreover, the new line 500 can be remotely controlled through Ethernet or Internet.

DID Gas Chromatograph - 600

Laboratory Line

The new line 600 has been designed for working with Chromdyne software on a computer. It make this new system ideal for laboratory process gas analysis. Moreover, the new line 600 can be remotely controlled through Ethernet or Internet.

Technical specifications

Accuracy
Drift
Temperature drift
Operating temperature	~ 20°C without wide variations of temperature
Sampling gas	N2, Ar, He, Air, H2, O2, CO2
Sample gas connection	1/8’’ Swagelok SS or VCR
Sample flow rate	Approximately 3 to 5 l/h
Sample pressure	Lower than 100 mBarg
Combustive gas	Synthetic air
Combustive gas connection	1/8’’ Swagelok SS or VCR
Combustive gas pressure	2 Barg stable
Combustive gas flow rate	300 ml/min
Recommended quality	min. 6.0 or purified gas
Fuel gas	Hydrogen
Fuel gas connection	1/8’’ Swagelok SS or VCR
Fuel gas pressure	1 Barg stable
Fuel gas flow rate	38 ml/min
Recommended quality	Min. 6.0 or purified gas
Carrier gas	Argon, Nitrogen or Hydrogen
Carrier gas connection	1/8’’ Swagelok SS or VCR
Carrier gas pressure	from 4 to 10 Barg
Carrier gas flow rate	2 to 6 l/h
Recommended quality	min. 6.0 or purified gas
Power supply	220 Vac, 50-60 Hz
Power consumption	500 VA
4-20 mA output	Eight configurable outputs depending on the application.
Digital output	Optional RS232, modbus, Profibus
Output relays (SPST 2 amperes / 250 Vac)	1 Analyser Failure alarm contact 1 Alarm High contact 1 Alarm High High contact

< 1 ppb resolution guaranteed (EPA 40)

User-friendly interface

Total Hydrocarbons (C2 => C5)

Adjustable alarm and oven settings

Fast response time

Possibility of auto-calibration programming

CE marked

Chromdyne software

OrthoPure FID Gas Chromatograph