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  • FRANÇAIS, page 27
B. HANDWHEEL
The adjusted flow is visible on the calibrated tube (l/min) via the float. When
constant flow is adjusted, the float is stabilized in a certain position on the
scale.
C. TUBE WITH THE FLOAT
The adjusted flow is visible on the calibrated tube (l/min) via the float. When
constant flow is adjusted, the float is stabilized in a certain position on the
scale.
D. USER OUTLET – OUTLET CONNECTION
The "flow outlet" user connection is usually with connection for hose (hose
nipple) or threaded (for humidifier).
This outlet is for supplying a gas flow (l/min) atmospheric pressure directly to
a patient, e.g. through a cannula or a facemask.
The flow outlet shall not be used for driving any medical device.
Note also that products colour (especially handwheel) might not follow any
gas colour coding.
6. OPERATIONS

6.1. BEFORE USE

VISUAL INSPECTION BEFORE FITTING
Check if there is visible external damage of the flowmeter (including product
labels and marking). If it shows signs of external damages, remove it from
service and identify its status.
Visually check if the product is contaminated; if needed, for the flow selec-
tor, use the cleaning procedure detailed in this instruction for use.
Ensure the valve for flow adjustment is completely closed (turning clock-
wise). When closing don´t use an excessive torque (max. recommended
closing torque is 0,4 Nm).
Ensure that connected hose nipple or humidifier to the outlet has correct
dimensions.
The flowmeter is dedicated only for use with the gas specified on its label-
ling. Never try to use for another gas.
FITTING TO MEDICAL GAS PIPELINE SYSTEM TERMINAL UNITS OR TO
MEDICAL REGULATOR
The flowmeter shall be connected only in a defined position – tube up.
FUNCTIONAL TEST
Check that there is a gas flow when turning the handwheel (for instance,
by listening of the sound of gas flow or checking presence of bubbles in
a humidifier).
Close the valve for gas adjustment (turning the handwheel clockwise).
When closing don´t use an excessive torque.
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