01440D Light Industrial Gas Analyser Service Manual. 2.1
2REPAIR
2.1 Test Equipment and Tools
The following test equipment and tools should be available to personnel responsible
for maintenance and calibration of the analyser.
• Volt/ohm/milli-amp meter of high input impedance, resolution 0.1mV.
• Flat blade screwdriver, 6mm width.
• Soldering iron 25W.
• De-solder braid or vacuum de-soldering tool.
• Potentiometer trimming tool.
• 2.5mm AF Allen Key
• 3mm AF Allen Key
• Open-ended wrench, width across flats 0.45 in (7/16in) British 3/16 nominal,
non-magnetic.
• Manometer, with a range exceeding 500mm Wg and a bore not exceeding
5mm.
• Calibration gases:
• Clean dry nitrogen with an oxygen concentration of less than 0.1% O
2
.
• 01440D1STD and 01440D1FTX: Clean dry air, nominal concentration 20.9 O
2
(for oxygen analysers) or a certified calibration gas with a suitable CO
2
content
(for Carbon Dioxide analyser).
• 01440D1FTX only: A certified calibration gas with a suitable CO or CH
4
content (for Infra-red analysers).
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