Pneumatic Connection; Operation; Checking Zero And Span - Samson 6111 Mounting And Operating Instructions

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
NPT, G or M5 female thread.
1 1
/ /
8 8
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).
10
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.
EB 6111 EN