Instruction Manual
DM08
Excitation frequency:
The function
Excitation frequency
is inten-
ded for setting the excitation frequency of the
field coil current. Because of the inductance of
the field coils the maximum frequency is limited
and that’s why it can’t be assigned freely.
The factory-set for the excitation frequency is
6.25 Hz.
After choosing the desired function using the
key
▲
or
▼
and pressing Enter, the following
selection field will be displayed:
Excitation freq.
[6.25Hz]
Example:
For changing the parameter please refer to the
description in Section "Selection window / make
a selection".
Caution! Reference calibration re-
quired!
If the excitation frequency is changed,
a reference calibration ("Reference calibration
on / off", p. 43) must be accomplished!
Otherwise the measuring accuracy is not en-
sured.
Mains frequency:
To provide the optimum interference suppres-
sion the mains frequency is needed and the
function
Mains frequency
is intended to enter
this parameter.
The default setting is 50 Hz.
After choosing the function
Mains frequency
using the key
▲
or
▼
and pressing Enter, the
following selection field will be displayed
Mains frequency
[50] Hz
Example:
For changing the parameter please refer to the
description in Section "Selection window / make
a selection".
Flow direction:
This function is intended to define the flow dir-
ection that is taken into account by the display
electronics.
That way for example the setting "
forward
" will
prevent reverse flow from being measured.
After selecting the function
Flow direction
using the key
▲
or
▼
and pressing Enter, the
current setting will be displayed.
Flow direction
[forward]
Example:
For this parameter the following settings are
available:
Output signal curve at the setting
forward
:
reverse
:
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PKP Prozessmesstechnik • 09/2019
