Multitest ND
Operator's manual
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11
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Lung-governed demand valve
—leak-tightness without negative medium
pressure
Attach the lung-governed demand valve to the equipment
connector.
Seal the connecting nipple of the lung-governed demand valve.
Move the “suction pump” lever to the “OPEN” position.
Press and hold the pump push-button.
Let the pressure build up until it is slightly higher than the level required
for testing and move the “suction pump” lever to the “CLOSED” position.
Release the pump push-button.
Release pressure via the relief valve until the level required for testing is
reached.
Perform the test against the specifications provided by the equipment
manufacturer.
Lung-governed demand valve
—leak-tightness with medium pressure
IMPORTANT: Be sure to strictly adhere to the sequence of steps!
Detach the lung-governed demand valve from the equipment
connector.
Attach the connecting nipple of the lung-governed demand valve to the
SCBA.
Open the breathing-air-cylinder valves.
Attach the lung-governed demand valve to the equipment
connector.
Move the “pressure pump” lever to the “OPEN” position.
Press and hold the pump push-button.
Let the pressure build up until it is slightly higher than the level required
for testing and move the “pressure pump” lever to the “CLOSED”
position.
Release the pump push-button.
Release pressure via the relief valve until the level required for testing is
reached.
Perform the test against the specifications provided by the equipment
manufacturer.
