MAN0597 ISSUE 08 - 02/04
2302M5030
56
4.9.2 Flow Calibration – Instrument
The following equipment is required:
• cylinder of calibration gas (either certified individual gas per
sensor or a certified multi-gas mixture)
• flow adaptor: ensure that the tubing is fitted to the port
marked 'IN' (except for Cl
2
cartridges where the tubing
should be fitted to the port marked 'OUT').
• flowmeter/regulator set to 300ml/min
• tubing
To put the instrument into calibration mode the menus are
accessed. If configured it may be necessary to enter a
password before access to calibration is possible.
The keys must be pressed in the
correct sequence, otherwise the
password will be rejected. As each
key is entered the ‘.’ will be replaced
by ‘X’.
The calibration procedure requires a
zero, followed by a span. The span
requires specific concentration of
calibration gas that matches those
held in the settings. Select the
required option.
Password:
XX..
Calibration
Span
Settings
Zero
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