Operation; Commissioning Generator; Start Generator; Adjusting The Purity - Parker NitroFlow Lab Bedienungsanleitung

7

Operation

7.1

Commissioning generator

1. Make sure that the connections are correct and fixed properly.
2. Switch on the generator with the switch at the back of the generator (refer to §3.3).
3. Then touch the ON/OFF button
CAUTION
Don't use sharp objects to operate the screen.
4. It will take about 3 minutes before the generator will start to run. The countdown in seconds is shown on
the display.
IMPORTANT
The generator must be run with sheet metal covers mounted on the unit; not doing so will
affect the heat management of the system and shut down the compressors; prolonged running
without sheet metal covers will shorten the life of the appliance and can lead to irreparable
damage
5. Check the inlet pressure level in the maintenance
bar(g), the unit must be switched off and checked for blockades on the outlet. When a cause cannot be
found, stop running the system and contact your supplier.
6. Check whether the connections of the tubing between the generator and the application are free of leaks.
7. When the outlet is blocked the delivery pressure must not be higher than 8 bar(g); the excess nitrogen is
vented via an internal pressure relief valve or the unit is switched off in case of no nitrogen demand.
8. The purity of the generator is factory set as required. To adjust the oxygen content, adjust the purity control
valve FCV. Refer to §7.3 for instructions.
9. The pressure control of the generator is factory set as required. Two modes of pressure control are
possible (for instructions refer to §7.4).
Switching on and off depending on the outlet pressure (e.g. when a nitrogen storage vessel is installed).
Max. switch-off pressure = 8.0 bar(g)
Continuous operation; excess produced nitrogen is vented. Max. nitrogen pressure 8.0 bar(g)
7.2

Start generator

1. Switch the button on the back of the generator to the ON-position (up).
2. Switch on the generator with the ON/OFF button on the touch screen panel (refer to §6.2).
3. There is a 3 minute delay between stopping and restarting the generator.
4. The generator will deliver nitrogen instantaneously.
7.3

Adjusting the purity

The purity of the output can be read on the main screen.
1. The purity is determined by measuring the residual oxygen
content in the nitrogen outlet.
2. To change the purity, change the setting of the purity
adjustment valve (refer to § 3.3) (left valve behind
removable upper front panel)
3. First unlock the needle valve by loosening the hexagonal
lock nut on its spindle. (Fig. 7-1)
4. Turning the valve clockwise will result in a decrease of
the oxygen level and vice versa. The oxygen level can be
read on the main screen of the display.
K3.1.142M Manual NitroFlow Lab
on the touch screen display in the front of the generator.
menu (screen 3/5); in case this exceeds a level of 4.5
Fig. 7-1 Purity-adjustment-valve
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