WIKA PGS23.063 - Manual (Page 2)

1) The permissible upper ambient temperature for the electrical components is determined by the
electrical connection values and the ignition temperature of the ambient gases, vapours and dusts.
Therefore the maximum permissible ambient temperatures specified in the EC-type examination
certificates for slot-type sensors and SN sensors must be observed as well. The lower of these two
values is to be considered the maximum permissible ambient temperature!
Temperature effect
When temperature of the pressure element deviates from reference temperature (+20 °C):
max. ±0.4 %/10 K of true scale value
IP Ingress protection
Enveloping case IP 54 resp. IP 65 as special feature (EN 60 529 / IEC 60 529)
Materials
Wetted parts:
Stainless steel
Movement: Stainless steel
Dial and pointer: Aluminium
Case, bezel ring: Stainless steel
Window: Polycarbonate
Installation
T Nominal position per EN 837-1 / 9.6.7 Figure 9: 90° ( )
T Pressure connection: lower mount (LM) or back mount (BM)
T In order to ensure that with models 232.3X pressure can be safely and reliably vented
through the case back, a distance of at least 25 mm has to remain free behind the case!
T In order to avoid any additional heating, the instruments must not be exposed to direct
solar irradiation while in operation!
Permissible vibratory stress at the mounting location
T As a matter of principle the instruments should only be mounted at locations without
vibratory stresses
T Where required, a decoupling from the mounting location can be achieved e.g. by a
flexible connecting line from the measuring point to the pressure gauge and mounting via
a measuring instrument bracket.
T If this is not possible, the following limits must not be exceeded:
Frequency range < 150 Hz
Acceleration < 0.5 g (5 m/s 2 )
Operating Temperature
Ambient: -25 ... +60 °C
Attention: Footnote 1) under table 1 must be absolutely taken into account!
Medium: see table 1
Attention! With gaseous substances the temperature may increase as a result of the
compression temperature. In such cases the pressure change rate has to be slowed down
resp. the permissible medium temperature has to be reduced.
Table 1: Permissible medium temperature (only mechanical part)
4. Alarm contacts
EC-type examination certificates
The proximity sensors are in accordance with EC-type examination certificate
KEMA 01 ATEX 1264 X.
The built-in sensor type is stated on the product label of the pressure gauge.
Contact function index
The contact function of the switch is identified by the indices 1 or 2.
831. 1 = NO - normally open, contact makes (clockwise pointer motion)
831. 2 = NC - normally closed, contact breaks (clockwise pointer motion)
Ignition temperature of Permissible maximum medium
the ambient atmosphere temperature (in the pressure system)
(temperature class)
T 6 ( > 85 °C) +70 °C
T 5 ( > 100 °C) +85 °C
T 4 ( > 135 °C) +120 °C
T 3 ( > 200 °C) +185 °C
T 2 ( > 300 °C) +200 °C
T 3 ( > 450 °C) +200 °C