Siemens FIDAMAT 6 Operating Instructions Manual page 45

4.2 Start-up preparations
Position of unit
Gas conditioning
Check for leaks
FID
Test conditions:
Test medium:
Test pressure:
Unit electrically switched off:
Sample path
Supply gas inlets
FIDAMAT 6 gas analyzer
Operating manual – A5E00222135-01
The FIDAMAT 6 may only be operated in a vertical position.
Gas preparation takes place via a heated sample gas filter
(approx. 200°C) with a pore size of 3 µm and with a very limited capacity.
For this reason, samples with a high degree of contamination must be
prefiltered before entering the analyzer.
A leakage inspection should be conducted after any maintenance activity
affecting the flame ionization detector (FID) or the gas path. This is done
as follows:
the sample gas outlet (exhaust gas) to a relative
1. Connect
pressure manometer
2. Apply an overpressure of about 950 hPa at the sample entry and
close off.
3. Wait two minutes or so, until pressure equalization has occurred and
then make a note of the pressure.
4. Wait another minute and then read off the pressure
The gas path is satisfactory as far as leaks are concerned when
the pressure drop within a minute does not exceed 10 + 2 hPa.
Note
The temperature of the gas path, including the FID, must remain constant
while this measurement is being taken.
The pressures given are relative pressures.
Synthetic air (sample path must not become contaminated)
Operating pressure x 1.5 (operating pressure = 500 hPa)
Test pressure [hPa]
750 + 10 (750 + 10 hPa)
3,000 +100 (3,000 + 100 hPa)
(0 - 1000 hPa, resolution 0.1 hPa)
Permissible pressure drop ∆ p [hPa]
∆ p 10+2 (10 + 2 hPa)
∆ p 12+5 (12 + 5 hPa)
Start-up
4-3