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Switching
PUMP on / off
The analyser normally operates with the pump on.
Press
/
to switch the pump off and on.
When the pump is switched off “-PO-" is displayed instead of the
O
2
, CO & CO
2
readings. The analyser also displays "PUMP OFF"
on the top line approx every 40 seconds.
NOTE:
The pump will automatically switch itself off when the rotary
switch is set to Menu, Status, Pressure, Tightness or
Differential Temperature.
Zeroing the
pressure
sensor
To re-zero the pressure sensor when “Prs/Temp” is selected on the
dial, press and hold
/
until the top line display
shows CAL ZERO.
Always disconnect the pressure hose before zeroing.
Printing Data
Press and quickly release
/
to start the analyser
printing. The analyser displays a series of bars until this is
completed. Press and release the key again to abort printing.
Make sure the printer is switched on, ready to accept data and its
infrared receiver is in line with the analyser’s emitter (on top of the
analyser).
Storing a set
of readings
Press and hold
/
for approx. 2 seconds.
The top line briefly displays the log number.
Note: This STORE function is inhibited in normal operation if
the pump is switched off.
Using
/
/
Buttons
The function buttons below the symbols
/
/
are used
to navigate through the menu when the rotary switch is set to
MENU – See USING THE MENU, Section 5.
