WIKA 432.56.100-831.21
帶過壓保護膜片式不銹鋼電接點壓力表
Diaphragm pressure gauge
with switch contacts
Model 432.56,
high overpressure safety up to 100 bar
Model 432.36, safety version, high overpressure safety up to 400 bar
Diaphragm pressure gauge model 432.56.100,
high overpressure safety up to 40 bar, with switch
contact model 831.21
Applications
Control and regulation of industrial processes at measuring points with increased overpressure and scale ranges from 0 … 25 mbar
Monitoring of plants and switching of electric circuits
For gaseous and liquid, aggressive and highly viscous or contaminated media, also in aggressive ambience
Process industry: Chemical, petrochemical, power plants, mining, on- and offshore, environmental technology, machine building and general plant construction
Special features
High overpressure safety, optionally up to 40, 100 or 400 bar, due to bllic diaphragm cushion, without liquidfilled measuring cell
Wide choice of special materials
Also available with liquid-filled case for high dynamic pressure loads or vibrations
Gauges with inductive contacts for use in hazardous areas with ATEX approval
Gauges with electronic contact for PLC applications
Debion
Wherever the process pressure has to be indicated locally, and, at the same time, circuits are to be made or broken, the model 432.56 or 432.36 switchGAUGE can be used.
Switch contacts (electrical alarm contacts) make or break an electric control circuit dependent upon the b of the instrument pointer. The switch contacts are adjustable over the full extent of the scale range (see DIN 16085), and are
mounted predominantly below the dial, though also partly on top of the dial. The instrument pointer (actual value pointer) moves freely across the entire scale range, independent ofthe setting.
The set pointer can be adjusted using a removable adjustment key in the b.
Switch contacts consisting of several contacts can also be set to a single set point. Contact actuation is made when the actual value pointer travels beyond or below the desired set point.
The pressure gauge is manufactured in accordance with DIN 16085 and fulfils all requirements of the relevant standards (EN 837-3) and regulations for the on-site display of the working pressure of pressure vessels.
As switch contacts magnetic snap-b contacts, reed switches, inductive contacts - for requirements to ATEX - or electronic contacts for triggering a PLC are available.
For further inbation on the different switch contacts please
see data sheet AC 08.01.
Standard version
Nominal size in mm
100, 160
Accuracy class
1.6
Scale ranges
0 ... 25 mbar to 0 ... 250 mbar (flange Ø 160 mm) 1)
0 ... 400 mbar to 0 ... 40 bar (flange Ø 100 mm) 1)
or all other equivalent vacuum or combined pressure and vacuum ranges
Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Overpressure safety
40, 100 or 400 bar
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
Process connection with lower measuring flange
Stainless steel 316L, G ½ B (male), 27 mm flats
Pressure element
≤ 0.25 bar: Stainless steel 316L
> 0.25 bar: NiCr-alloy (Inconel)
Pressure chamber sealing
FPM/FKM
Movement
Stainless steel
Dial
Aluminium, white, black lettering
Pointer
Instrument pointer: Aluminium, black
Set pointer: red
Case
Stainless steel, gauges with liquid filling with compensating valve to vent case
Model 432.56: with blow-out device
Model 432.36: safety version with solid baffle wall and blow-out back
Upper measuring flange
≤ 0.25 bar: Chrome steel
> 0.25 bar: NiCr-alloy
Window
Laminated safety glass
Bezel ring
Cam ring (bayonet type), stainless steel
Electrical connection
Terminal box
Ingress protection
IP 54 per EN 60529 / IEC 529
Switch contacts
Magnetic snap-b contact model 821
No control unit and no extra power supply required
Direct switching up to 250 V, 1 A
Up to 4 switch contacts per measuring instrument
Inductive contact model 831
Long service life due to non-contact sensor
Additional control unit required (model 904)
With corresponding control unit suitable for use in zone 1 /21 (2 GD) hazardous areas
Low effect on the indication accuracy
Fail-safe switching at high switching rates
Insensitive to corrosion
Up to 3 switch contacts per measuring instrument
Electronic contact model 830 E
For direct triggering of a programmable logic controller(PLC)
2-wire system (option: 3-wire system)
Long service life due to non-contact sensor
Low effect on the indication accuracy
Fail-safe switching at high switching rates
Insensitive to corrosion
Up to 3 switch contacts per measuring instrument
Reed switch model 851
No control unit and no extra power supply required
Direct switching up to 250 V, 1 A
Also suitable for direct triggering of a programmable logic controller (PLC)
Free from wear as without contact
Up to two change-over contacts per measuring instrument
Switching function
The switching function of the switch is indicated by function index 1, 2 or 3.
Model 8xx.1: Contact makes (clockwise pointer motion)
Model 8xx.2: Contact breaks (clockwise pointer motion)
Models 821.3 and 851.3: Change over; one contact breaks and one contact makes simultaneously when pointer reaches set point
For further inbation please see data sheet AC 08.01, electrical switch contacts
Options
Other process connection
Sealings (model 910.17, see data sheet AC 09.08)
Liquid filling (models 433.56, 433.36, ingress protection IP 65)
Vacuum safe to -1 bar
Max. medium temperature +200 °C
Higher indication accuracy, class 1.0
Open connecting flanges per DIN/ASME from DN 15 to DN 80 (preferred nominal bs DN 25 and 50 or DN 1" and 2"; see data sheet IN 00.10)
Wetted parts made of special materials, high overpressure safety up to 10 bar(flange Ø 160 mm) or 40 bar (flange Ø 100 mm): PTFE (models 452.56, 452.36), Hasbloy, Monel, nickel, tantalum, titanium (accuracy class 2.5)
Inductive contacts also in safety version (SN, S1N)
Special version
Model 432.36, high overpressure safety up to 400 bar
Scale ranges:
0 ... 25 mbar to 0 ... 250 mbar (flange Ø 190 mm)
0 ... 400 mbar to 0 ... 40 bar (flange Ø 120 mm)
Flange connecting screws: Steel, corrosion-protected
CE conbity
Pressure equipment directive
97/23/EC, PS > 200 bar, module A, pressure accessory
EMC directive
2004/108/EC, EN 61326 emission (group 1, class B) and interference immunity (industrial application)
ATEX directive 1)
94/9/EC, II 2 G Ex ia IIC
Approvals 1)
ATEX, Design approval for connection to hazardous zone 0
GOST, metrology/measurement technology, Russia
GOST-R, import certificate, Russia
KOSHA, ignition protection type „i“ - intrinsic safety, South Korea
CRN, safety (e.g. electr. safety, overpressure, ...), Canada
Certificates 1)
2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, material proof, indication accuracy)
3.1 inspection certificate per EN 10204 (e.g. material proof
wetted parts bl component, indication accuracy)
1) Option
Approvals and certificates, see website
Dimensions in mm
switchGAUGE model 432.56.100, with switch contact model 821, 831 or 830 E
switchGAUGE model 432.56.160, with switch contact model 821, 831 or830 E
Option
switchGAUGE model 432.36.100, with switch contact model 821, 831 or 830 E
Option
switchGAUGE model 432.36.160, with switch contact model 821, 831 or 830 E
Dimensions in mm
switchGAUGE model 432.56.100, with switch contact model 851.3 or 851.33
switchGAUGE model 432.56.160, with switch contact model 851.3 or 851.33
Option
switchGAUGE model 432.36.100, with switch contact model 851.3 or 851.33
Option
switchGAUGE model 432.36.160, with switch contact model 851.3 or 851.33
Ordering inbation
Model / Nominal size / Overpressure safety up to ... bar / Scale range / Type of contact and switching function / Connection
size / Options
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