FISCHER DS 11, Руководство пользователя, Страница: 4 / 16

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•
The electrical connection of the device shall be
performed according to relevant VDE and local
electricity board regulations.
•
Disconnect the system from the mains before
connecting the device.
•
Add a fuse adapted to the energy requirements.
4.2.1 Cable socket and plug connection
Cable socket Plug connection
4.2.2 Numbered cables
For models with numbered cables, the cable num-
bers correspond with the presented terminal num-
bers.
5 Commissioning
All electrical supply, operating and measuring lines,
and the pressure connections must have been cor-
rectly installed before commissioning. All supply
lines are arranged so that there are no mechanical
forces acting on the device.
Check that the pressure connections do not leak
before commissioning.
5.1 Control Elements
5.2 Zero point correction

Depressurize the measuring chamber.

Remove the hood

Set the measurement value pointer to the zero-
point scale using the zero point correction
screw.

Re-mount the hood.
5.3 Switch point setting

Remove the plug in the hood.

The required switch points can be set guide
value scales according to the markings by us-
ing a screwdriver. The achievable setting accu-
racy is ± 5 %.
1

Replace the plug after completing the settings.
5.4 Function test
Remove both plugs in the hood for testing.
If the unit has two micro-switches, the stated test
steps must be carried out for both switches.
After the test, the switch points need to be reset
acc. to 5.3.
5.4.1 Checking the switch points when the
system is depressurized.
No measurement is shown and the measurement
display points to zero.
Turn the switch point setting button toward the zero-
point until the micro-switch is activated.
1
More accurate settings can be made either in the factory or on
site using suitable aids (test manometer, ohm meter etc.)
Ground connection
Zero-point correction screw
Switch point setting
switch 1
Switch point setting
switch 2
Switch 1 Switch 2