Manual

4.4 Flow test
768 KFOven 41
4.4 Flow test
1. Switch pump ON, key <PUMP>.
2. Turn gas flow control anticlockwise (setting of max. flow). You should have a flow of at
least 400 mL/min or 24.0 L/h, resp.
3. Screw off the short tubing at the rear of the Oven (outlet "Air out") and seal the outlet with
your finger. The display should read 0 mL/min or 0 L/h, resp.
4. Screw the tubing onto the outlet again and set the gas flow as for your applications.
4.5 Check of valve functions
The following test shows if the valve switches correctly:
1. Switch pump ON, key <PUMP>, and adjust a flow of app. 200 mL/min.
2. Set the valve to "TRANSFER", key <VALVE>. LED "TRANSFER" is ON.
3. Check the air flow at the end of the insert tube. The feeble air flow should be perceivable
on the moistened back of your hand.
4. Switch the valve to "PURGE", key <VALVE>. LED "PURGE" is ON.
5. Check the air flow at the outlet with the dust filter at the rear of the Oven.