WIKA 532.51 532.54 带膜片的绝压表
不锈钢系列 精度0.6 表径100
Absolute pressure
gauge
Stainless steel version, with diaphragm element
Models 532.51 to
532.54, class 0.6 ... 2.5
Absolute pressure gauge, model 532.51
Applications
■
Pressure measurement independent of fluctuations in the atmospheric
pressure
■ For gaseous, liquid and aggressive media, also in aggressive
ambience
■ Monitoring of vacuum pumps
■ Control of vacuum packing
machines
■ Monitoring of condensation pressures and determination of the
vapour pressure of liquids
Special
features
■ High overpressure safety
■ Long service
life due to metallic media chamber sealing
■ Media chamber protected
against unauthorised intervention DT-GM 86 08 176
■ Gauges compatible
with switch contacts
■ Scale ranges from 0 … 25 mbar absolute
pressure
Description
Nominal size in mm
100, 160
Accuracy class
Model 532.51 NS 160: 0.6
Model 532.52: 1.0
Model 532.53: 1.6
Model 532.54: 2.5
The
measuring accuracy is ensured for fluctuations in atmospheric pressure between
955 and 1,065 mbar (min. and max. of atmospheric pressure).
Scale ranges
0 ... 25 mbar to 0 ... 25 bar
absolute pressure
Pressure limitation
Steady: Full scale
value
Fluctuating: 0.9 x full scale value
Overpressure safety
Minimum 1
bar absolute pressure (atmospheric pressure), in addition 10 x full scale value,
max. 25 bar absolute pressure
Permissible temperature
Ambient: -20 ... +60 °C
Medium: +100 °C maximum
Temperature
effect
When the temperature of the measuring system deviates from the
reference temperature (+20 °C): max. ±0.8 %/10 K of full scale
value
Ingress protection
IP 54 per EN 60529 / lEC
529
Standard version
Process connection
(wetted)
Stainless steel 1.4571, lower mount (LM)
G ½ B
(male), 22 mm flats
Pressure element (wetted)
< 4 bar:
Stainless steel 1.4571
≥ 4 bar: NiCrCo-alloy (Duratherm)
Measuring chamber (wetted)
Stainless steel
1.4571
Movement
Stainless steel
Dial
Aluminium, white, black lettering
Pointer
Adjustable pointer, aluminium,
black
Zero adjustment
By means of adjustable pointer
(adjustment appliance with gauges with switch contacts or liquid filling)
Case
Stainless steel, with
blow-out device
Gauges with liquid filling with compensating valve to
vent case
Window
Laminated safety glass
Bezel ring
Cam ring (bayonet type), stainless
steel
Mounting by means of:
■ Rigid measuring
lines
■ Mounting bracket for wall or pipe mounting (option)
■
Panel or surface mounting flange (option)
Options
■ Other
process connection
■ Sealings (model 910.17, see data sheet AC
09.08)
■ Liquid filling (model 533.xx)
■ Safety version (model
53x.3x)
■ Overpressure safety > 10 x full scale value
■ Wetted
parts from Monel (model 56x.xx)
■ Medium temperature stability > 100
°C
■ Permissible ambient temperature -40 ... +60 °C (silicone oil
filling)
■ Open connecting flanges DN 15/50 PN 16/40 (wetted)
■
Small flange for vacuum applications DN 10/32 DIN 28403 (wetted)
■ Panel
or surface mounting flange (consider measuring cell!)
■ Mounting bracket
for wall or pipe mounting (data sheet AC 09.07)
■ Switch contacts (data
sheet AC 08.01)
■ Pressure gauge with electrical output signal, see model
APGT43.1x0, data sheet PV 15.02
■ Version per ATEX Ex II 2 GD c
TX
Special versions
Model 532.53 with
expanded lower scale range
Scale range 0 ... 1,020 mbar absolute
pressure, working range 0 ... 30 mbar in class 1.6 expanded to approx. 130
p°
Design and operating principle
■ The
diaphragm (1) separates the media chamber (3) and the reference pressure chamber
(2) with absolute pressure zero
■ Pressure differential between media
chamber (3) and reference pressure chamber (2) will deflect the diaphragm
(1)
■ In case of an overpressure overload the pressure element will be
protected by a contoured metal bolster
■ The deflection is transferred
from the pressure chambers through bellows or corrugated tubes (4), transmitted
to the movement via the link (5) and indicated
Dimensions in mm
Standard
version
Option connecting flange
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