WIKA PGS23.160 - Manual (Page 11)

WIKA operating instructions pressure gauge model PGS with reed contacts 11
GB
14000322.01 03/2011 GB/D/F/E
6. Commissioning, operation
With safety pressure gauges (see dial symbol k) ensure that the free
space behind the blow-out back is at least 15 mm.
6.2 Special requirements for the installation point
If the line to the measuring instrument is not adequately stable, a measuring
instrument holder should be used for fastening (and possibly via a flexible
capillary). If vibrations cannot be avoided by means of suitable instal-
lation, instruments with liquid filling should be used. The instruments
should be protected against coarse dirt and wide fluctuations in ambient
temperature.
In rare cases an actuation of the reed switches can occur due to an
impermissibly high shock or vibration. In this case these reed switches
have to be reset after installation of the instrument in the measuring
point by moving the instrument pointer once over the set switch point
(reed switch).
6.3 Electrical connection
The electrical connection must only be made by qualified skilled person-
nel. Connection details and switching functions are given on the product
label. Connection terminals and earth terminal are appropriately marked.
The mains connection lines to be provided must be dimensioned for
maximum instrument power consumption and comply with IEC 227 or
IEC 245. For power ratings (see "Specifications") and protective circuits
with inductive and capacitive loads see chapter "7. Contact protection
measures".