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R A N G E
Operating Manual
Oxygen Reading (Optional – Enhancement for G210 ONLY)
The G210 instrument has the optional facility to use an internal oxygen cell (specified at the time of
manufacture or upon request at service interval). This allows the instrument to read and display
oxygen readings along with N
Pressure Regulator (Optional - G210 ONLY)
A pressure regulator must be used when taking gas readings to restrict the flow into the instrument
when using the G210 analyser. When sampling piped medical gases the pressure of the gas needs to
be reduced before it is passed to the instrument. This reduces the pressure to 100mbar suitable for
the instrument.
Note: Alternative methods of pressure reduction are available and could be used. However, to
avoid irreversible damage to the instrument, please seek guidance from the supplier /
manufacturer before using any other pressure device.
Do NOT use the instrument at full piped pressure (maximum pressure 300mbar).
Soda Lime CO
Filter
2
The G200 instrument must only be used with a soda lime CO
present when a reading is taken.
This filter should always be fitted when using a G200 instrument as any CO
the N
O reading. For further information please refer to section
2
The life of the filter will vary depending on usage. The crystals change colour from pale green-blue to
white-grey. The filter element should be discarded when a significant percentage of the crystals start
to turn a white-grey colour see below:-
Figure 1 - New filter (pale green/blue)
www.geotechuk.com
O, CO
, CO.
2
2
filter attached. The filter removes CO
2
will cross-contaminate
2
Cross-Gas
Effects.
Figure 2 - Used filter (white/grey)
© QED Environmental Systems Ltd.
Page 10 of 61
if
2
OMG200N Iss.04
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