HYDAC HMG 3000 - Manual (Page 30)

HMG 3000 Page 30
Edition 11/2007 - V02 R01-S02 Stock no.: 669712
Switching the HMG unit or measurement
channels OFF/ON doesn't automatically
cause the newly set zero point to be deleted.
The following message is shown when
switching the HMG off and then back on:
"Some channels have a zero offset."
Press OK to retain the zero offset or Esc
to delete it.
To determine the extent of a zero offset
which has been set, go to the Settings menu
and select Zero measurement channels.
You are shown a list of all the channels
which are active. Channels with a zero point
adjustment are checkmarked. The value of
the zero offset is shown at the right.
Any zero offset is also shown in the
measurement channel list by way of a small
arrow in front of the measurement range. To
find it, go to the Settings menu, then
Change Settings of Measurement
Channel
.
There is one exception where the zero offset
is automatically deleted. This happens when
a sensor is connected to the channel and the
sensor has a measurement range differing
from the one for which the zero offset was
set. This means that the zero offset is not
retained unless the lower and upper
measurement limit, the number of decimal
places, and the unit of measurement of the
newly connected sensor are identical.
When the zero offset is automatically
deleted, a message to this effect appears in
the display for two seconds.