Sagem Ultima 600 Maintenance Manual page 21

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1. Gas sampling sensor: comprises an adjustable stainless steel flexible end fitting with
attachment spring.
2. Hose: 7-meters long, connects sampling sensor to analyzer gas inlet on rear panel.
3. -Line paper filter: first filter, located in gas sampling circuit, placed vertically at the rear of
the analyzer. This filter is not regenerative.
4. Main filter: Vyon filter, retaining particles greater than 25 microns. This filter is used in
coalescer mode (gas circulating inside filter toward outside) to trap micro droplets of water
through the filter and large solid impurities. The water drops coming out of the filter drop to
the bottom of the bowl where they are sucked in by a pump head. The cartridge is
washable.
5. Cell protection filter for measurement mode: fine filter used to protect the cell from the
smallest particles during the « measurement » phase.
6. Gas flow monitor: displays « gas flow fault » alert message when clogging in
corresponding filters occurs.
7. Cell protection filter for calibration mode implementing activated charcoal: Filter used to
protect the cell from hydrocarbons and external environment humidity during the
« calibration » phases.
8. Solenoid valve: enables passage of air during calibration sequences to allow leaving the
sensor in the exhaust pipe.
9. Analysis cell: Instrument based on infrared analysis principle.
10.Oxygen sensor: Placed at outlet of pneumatic circuit to avoid modifying sampling of gas to
be measured.
11.Pressure sensor: Integrated in gas analysis cell for correction of pressure of
concentrations of gases measured.
12.Quick coupler: Enables supply of a reference gas to cell (pump stopped).
13.Water head pump: Pump used to evacuate water condensation to the outside.
14.Gas head pump: Pump used to circulate gases through the cell.
15.Check valve: used to avoid pump backflows.
16.Pump safety filter: Filter used to protect the pump. This filter is not regenerative.
A : Sampling sensor inlet
B : Calibration inlet (non-polluted air)
C : Gas outlet
D : Adjustment inlet
E : Water outlet
Issue 02/99
Ref.: 21821085-0/A
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