•
Turn the handwheel to select the required gas volume flow. The handwheel is turned
anticlockwise to increase the flow.
5.3.1.1 Locking adjustable flow outlet
en
A stop prevents the gas volume flow being switched directly between zero and maximum
and vice versa.
The handwheel must engage securely when selecting the required gas volume
flow. Do not try to set gas volume flows between the numerical values. No gas
will flow at interim settings.
Fig. 3
5.3.1.2 Continually adjustable flow outlet
•
The flow gauge must be upright.
•
Read the value on the upper edge of the float.
Fig. 4
"OFF"
"ON"
56