Deltabar FMD71, FMD72 Operation options
Endress+Hauser 31
Function of the DIP switches
Switch Symbol/
labeling
Switch position
"off" "on"
1
A0011978
The device is unlocked. Parameters relevant
to the measured value can be modified.
The device is locked. Parameters
relevant to the measured value cannot
be modified.
2
damping t
Damping is switched off. The output signal
follows measured value changes without
any delay.
Damping is switched on. The output
signal follows measured value changes
with the delay time t.
1)
3 SW/Alarm min The alarm current is defined by the setting
in the operating menu. ("Setup" → "Extended
setup" → "Current output" → "Output fail
mode")
2)
The alarm current is 3.6 mA (min),
regardless of the setting in the
operating menu.
1) The value for the delay time can be configured via the operating menu ("Setup" → "Damping"). Factory
setting: t = 2 s or as per order specifications.
2) Factory setting: 22 mA
Function of the operating elements
Operating key(s) Meaning
A0017535
Press for at least 3 seconds Adopt lower range value. A reference
pressure is present at the device.
For a detailed description, see also
"Pressure measuring mode" section,
→ 42or "Level measuring mode"
→ 43 section.
A0017536
Press for at least 3 seconds Adopt upper range value. A reference
pressure is present at the device.
For a detailed description, see also
"Pressure measuring mode" section,
→ 42or "Level measuring mode"
→ 43 section.
A0017537
Press for at least 3 seconds Position adjustment
A0017535
and
A0017536
and
A0017537
Press for at least 6 seconds Reset all parameters. The reset via
operating keys corresponds to the
software reset code 7864.