10
EB 6111 EN
Operation
3.3
Pneumatic connection
Rail-mounting unit
The standard connections for supply air
(SUPPLY 9) and output (OUTPUT 36) are de-
signed as hose connections suitable for hose
with 4 mm inside diameter and 6 mm out-
side diameter (see Rail-mounting unit on
page 19).
The hose connection are also available with
1
/
8
NPT, G
1
/
8
or M5 female thread.
Field unit
See Field unit on page 20. The pneumatic
connections (supply air and output) are de-
signed as a bore with ¼-18 NPT thread.
Supply air (
see section 9)
−
Min. + 0.4 bar above the upper signal
pressure range value
−
Max. 10 bar
Optional for rail-mounting unit:
−
Supply over manifold (see section 7).
4
Operation
See Fig. 5 on page 19.
4.1
Checking zero and span
The device converts the input signal propor-
tionally into the output signal.
The signal ranges are specified on the name-
plate. The specified range is fixed and can
only be changed by approx. 10 % using the
potentiometers.
If the device does not work properly for any
reason, check the zero and span.
The
ZERO
and
SPAN
potentiometers are ac-
cessible through the holes in the front cover
after opening the clear plastic cover (see
Fig. 1 and section 10).
Note:
The zero point of devices with
booster I cannot be adjusted lower
than 0.1 bar.
Do not adjust the characteristic in de-
vices with booster II at all as the setting
is much more complicated than in the
version with booster I.
