Quick Start Guide
SERVO
PRO CHROMA/NANOCHROME/ULTRA Gas Analyser
41
04400003A_0
Install a by-pass rotameter on the sample line near the analyser and close to the
stream selection valve. This increases the gas velocity to allow a faster purge of
the sample line and improve response time. Adjust the sample line pressure to a
value that brings the correct flow into the system. All lines must be cleaned and
purged to remove any traces of moisture or particles. Particles can damage the
stream selection valves and will trap moisture in the inlet filter.
CAUTION
Use new VCR gaskets each time the tubing is connected.
3.3.2 Carrier Gas Hardware Selection
The use of high grade carrier gas will improve the analyser performance. It is
recommended to feed at least 5N grade cylinder gas through a gas purifier to
generate the carrier gas.
1.
Gas Purifier
The SERVOPRO PureGas purifier is available with either compression or
VCR fittings, and for use with 110V or 220VAC power supplies.
The model number to order is:
02005A1_
01
SERVOPRO PUREGAS, 1/8" COMP, 110V
02005A1_
02
SERVOPRO PUREGAS, 1/8" COMP, 220V
EU
02005A1_
03
SERVOPRO PUREGAS, 1/8" COMP, 220V
UK
02005A1_
04
SERVOPRO PUREGAS, 1/8" VCR, 110V
02005A1_
05
SERVOPRO PUREGAS, 1/8" VCR, 220V EU
02005A1_
06
SERVOPRO PUREGAS, 1/8" VCR, 220V UK
Note: gas purifiers will not remove Ar impurity from He carrier gas. For determination of Ar
impurity ensure the UHP grade carrier gas is certified to have less than 1ppb Ar present.
2.
Carrier Cylinder Pressure Regulator
A stable pressure is critical to the analyser performance, which means high
quality cylinder pressure regulators must be used. The pressure regulator
should be a stainless steel, double stage type. For the carrier gas, the cylinder
