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WIKA APGT43.100 intelliGAUGE
全鋼安全型帶絕壓電接點壓力表
Absolute pressure gauge with electrical output signal
Stainless steel, safety version
Models APGT43.100 and APGT43.160
Absolute pressure gauge model APGT43.100
Applications
Acquisition and display of process values
Transmission of process value to the control room, 4 ... 20 mA, 0 ... 20 mA, 0 ... 10 V also as individual, non-linear characteristic curves
Pressure measurement independent of fluctuations in the atmospheric pressure
Monitoring of vacuum pumps, packing machines, determination of condensation pressure and vapour pressure in liquids
Special features
"Plug-and-play" with no configuration necessary
Scale ranges from 0 … 25 mbar absolute pressure
Easy-to-read analogue display with nominal sizes 100 and 160
High overpressure safety, long service life due to metallic media chamber sealing
Media chamber protected against unauthorised access
Description
At any point where pressure has to be measured independent of fluctuations in the atmospheric pressure and has to be indicated locally, and, at the same time, a signal is wanted to be transmitted to a central controller or remote control room, the model APGT43 intelliGAUGE (US Patent
No. 8,030,990) can be used.
Through the combination of a high-quality mechanical measuring system and precise electronic signal processing, the process pressure can be read securely, even if the power supply is lost.
The intelliGAUGE model APGT43.1x0 fulfils all safety-related requirements of the relevant standards and regulations for the on-site display of the operating pressure of pressure vessels. An additional measuring point for mechanical pressure indication can thus be saved.
The model APGT43 is based upon a model 532.54 highquality,stainless steel pressure gauge with a nominal size of 100 or 160. The pressure gauge is manufactured in accordance with EN 837-3.
The rugged design of the diaphragm measuring system produces a pointer rotation proportional to the pressure. An electronic angle encoder, proven in safety-critical automotive applications, determines the position of the pointer shaft - it is a non-contact sensor and therefore completely free from wear and friction. From this, the electrical output signal proportional to the pressure, e.g. 4 ... 20 mA, is produced.
The electronic WIKA transmitter, integrated into the highquality mechanical pressure gauge, combines the advantages of electrical signal transmission with the advantages of a local mechanical display. The measuring span (electrical output signal) is set automatically along with the mechanical display, i.e. the scale over the full display range corresponds to 4 ... 20 mA. The electrical zero point can also be set manually.
Nominal size in mm
100, 160
Accuracy class
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 range
0 ... 25 mbar to 0 ... 25 bar absolute pressure
Overpressure safety
Minimum 1 bar absolute pressure (atmospheric pressure), in addition 10 x full scale value, max. 25 bar absolute pressure
Process connection (wetted)
Stainless steel 1.4571,
lower mount (LM)
G ½ B (male), 22 mm flats
Pressure element
< 4 bar: Stainless steel 1.4571
≥ 4 bar: NiCrCo-alloy (Duratherm)
Measuring chamber (wetted)
Stainless steel 1.4571
Movement
Brass
Dial
Aluminium, white, black lettering
Pointer
Adjustable pointer, black aluminium
Case/Bayonet ring
Stainless steel, ingress protection IP 54
Window
Laminated safety glass
Bezel ring
Cam ring (bayonet type), stainless steel
Zero adjustment
By means of adjustable pointer (adjustment appliance with gauges with switch contacts or liquid filling)
Options
Other process connection
Sealings (model 910.17, see data sheet AC 09.08)
Overpressure safety > 10 x full scale value
Output signal 0 ... 20 mA, 0 ... 10 V
Higher indication accuracy on request
Wetted parts made of Monel
Open c onnecting flange 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 (see data sheet AM 09.07)
Filling liquid silicone M50
Version per ATEX Ex II 2G Ex ia IIC T4 / T5 / T6
ATEX variant: Additionally suitable for mounting to zone 0 (also in conjunction with inductive contact model 831)
Gost standard approval
Switch contacts (see data sheet AC 08.01)
Special versions
Model APGT43 with expanded lower scale range
Scale range 0 ... 1,020 mbar absolute pressure, working range 0 ... 30 mbar in class 2.5 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 connection rod (5) and indicated
Dimensions in mm
Standard version
CE conformity
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
94/4/EC, II 2 G Ex ia IIC
Ordering information
Model / Scale range / Connection size / Connection location / Options
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