11
11532319.05 04/2019 EN/DE/FR/ES
EN
WIKA operating instructions pressure gauge, PG43SA-S, PG43SA-C
5. Commissioning, operation
Nominal position per EN 837-3 / 9.6.6 figure 7: 90° (
⊥
) (only
applies to model PG43SA-S)
5.3 Mounting instructions for instruments with EHEDG and 3-A
Observe the following instructions, especially for EHEDG certified
and 3-A conform instruments.
To maintain the EHEDG certification, one of the EHEDG-recom
-
mended process connections must be used. These are marked
with the logo in the data sheet.
To maintain the conformity to the 3-A standard, a 3-A conform
process connection must be used. These are marked with the
logo in the data sheet.
Mount the instrument with minimal dead space and able to be
cleaned easily.
The mounting position of the instrument, welding socket and
instrumentation T-piece should be designed to be self-draining.
The mounting position must not form a draining point or cause a
basin to be formed.
With the process connection via an instrumentation T-piece, the
branch L of the T-piece must not be longer than the diameter D of
the T-piece (L ≤ D).
Special instructions for in-line versions
In-line access units (e.g. NEUMO BioControl
®
) and instrumenta-
tion T-pieces in horizontal pipes should be installed with a slight
pipe inclination for self-draining.
With in-line access units (e.g. NEUMO BioControl
®
), use the
original seals from the manufacturer and observe their installation
instructions.
