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WIKA PSA-31 衛(wèi)生型帶數(shù)字顯示壓力開關(guān) IO-KINK 醫(yī)藥衛(wèi)生用

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WIKA PSA-31 衛(wèi)生型帶數(shù)字顯示壓力開關(guān) IO-KINK 醫(yī)藥衛(wèi)生用

詳細(xì)介紹

接口尺寸：	G 1 Hygienic DIN 11851 Tri-clamp Clamp DIN 32676（mm）	加工定制：	是
防護(hù)等級(jí)：	IP65	測(cè)量范圍：	0-25BAR（kPa）
類型：	WIKA衛(wèi)生型帶數(shù)顯壓力開關(guān)PSA-31 衛(wèi)生型壓力開關(guān)IO-KINK帶數(shù)顯頭	防爆等級(jí)：	ATEX
型號(hào)：	PSA-31	測(cè)量介質(zhì)：	液體
精度等級(jí)：	1	品牌：	WIKA/威卡
輸出信號(hào)：	4-20（mA）	電源電壓：	10-30（V）

WIKA PSA-31 衛(wèi)生型帶數(shù)字顯示壓力開關(guān)

IO-KINK 醫(yī)藥衛(wèi)生用

Electronic pressure switch with display for sanitary applications
Model PSA-31

Pressure switch model PSA-31

   Applications
    Food and beverage industry
    Pharmaceutical industry
    Filling and packaging machinery
    Sanitary applications

   Special features
    Easily-readable, robust display
    Intuitive and fast setup
    Easy and flexible mounting configurations

   Description

   Award-winning in design and functionality
    The successful design and the excellent functionality of the WIKA switch family were already confirmed by winning the "iF product design award 2009" for the PSD-30 pressure switch.
    The robust LED display has been designed using 9 mm high characters （the largest possible） and with a slight incline in order to make reading the pressure as easy as possible from a long way off. A 14-segment display has been used, since it represents text very well.

The 3-key operation makes simple, intuitive menu navigation possible, with no need for additional assistance. The menu navigation is designed in accordance with the latest VDMA standard. The VDMA standard for fluid sensors （24574-1, part 1 - pressure switches） has the aim of simplifying the use of pressure switches by standardising menu navigation and display.
The control keys have been designed as large as possible and are arranged ergonomically to ensure fast and easy adjustments. Operation without any additional assistance is made easier through the tactile feedback.

Customised installation
The installation of the PSA-31 can be flexibly adapted to the individual mounting situation. Due to the almost unlimited rotation of the display and case by more than 300°, the display can be adjusted independently of the electrical connection. The display can thus always be aligned to face the operator, and the M12 x 1 connection positioned to suit the desired cable routing.

High quality
During development of the WIKA switch family a high value was placed on a robust design and the selection of appropriate materials suited to machine building applications. For this reason the case and the threaded connection of the electrical connector are made from stainless steel. Overwinding or tearing off the connector is therefore virtually impossible.

Measuring ranges

    Overpressure limit
    2 times

   Display
    14-segment LED, red, 4-digit, 9 mm character size
    Display can be turned electronically through 180°

Update
100, 200, 500, 1000 ms （adjustable）

Output signal

   Switching output 1      Switching output 2     Analogue signal
       PNP                      -                       4 ... 20 mA
       PNP                      -                        DC 0 ... 10 V
       PNP                      PNP                     4 ... 20 mA
       PNP                      PNP                      DC 0 ... 10 V

Alternatively also available with an NPN instead of a PNP switching output.
With the IO-Link option, switching output 1 is always PNP.

Zero offset adjustment
maximum 3 % of span

   Analogue signal
    Current output load:    ≤ 0.5 kΩ
    Voltage output load:     > 10 kΩ
    Settling time:          3 ms

   Switching output
    Switch point 1 and switch point 2 are individually adjustable
    Normally-open and normally-closed function: freely adjustable
    Window and hysteresis function: freely adjustable

   Switching voltage: Power supply - 1 V
    Switching current:    maximum 250 mA
                          maximum 100 mA with IO-Link option
    Settling time:         ≤ 10 ms

Voltage supply

Power supply
DC 15 ... 35 V

Current consumption
maximum 100 mA

   Total current consumption
    maximum 600 mA incl. switching current
    maximum 500 mA incl. switching current （with IO-Link option）

Accuracy

   Analogue signal
    ≤ ± 1.0 % of span
   Including non-linearity, hysteresis, zero-point and full scale deviations （corresponds to measured error per IEC 61298-2）. Calibrated in vertical mounting position with process connection facing downwards.

Non-linearity
≤ ± 0.5 % of span BFSL （per IEC 61298-2）

Adjustment accuracy of the switch points
≤ ± 0.5 % of span

Display
≤ ± 1.0 % of span ± 1 digit

Long-term drift
≤ ± 0.2 % of span （per IEC 61298-2）

Temperature coefficients depending on the process connection

   Clamp DIN 32676, DN 32
    Typical temperature coefficient of zero point
    0 ... 20 °C          0.75 % of span / 10 K
     20 ... 80 °C         0.45 % of span / 10 K
    Typical temperature coefficient of span
    0 ... 80 °C         0.1 % of span / 10 K

   All other process connections
    Typical temperature coefficient of zero point
    0 ... 20 °C          0.7 % of span / 10 K
     20 ... 80 °C         0.2 % of span / 10 K
    Typical temperature coefficient of span
     0 ... 80 °C          0.1 % of span / 10 K

   Reference conditions
    Temperature:            15 ... 25 °C
    Atmospheric pressure: 950 ... 1050 mbar
    Humidity:               45 ... 75 % relative
    Nominal position:       Process connection lower mount
    Power supply:           DC 24 V
    Load:                   see "Output signal"

Operating conditions

    Temperatures and humidity
    Ambient temperature: -20 ... +80 °C
    Storage temperature: -20 ... +80 °C
    Rated temperature range: 0 ... 80 °C
    Permissible humidity: 45 ... 75 % relative

   Ingress protection
    IP 65 and IP 67
   The stated ingress protection （per IEC 60529） only applies when plugged in using mating connectors that have the appropriate ingress protection.

   Medium temperature depending on the process connection
    G1 hygienic
        -20 ... +125 °C （+150 °C possible for up to 60 minutes）
    All other process connections
        -20 ... +100 °C （+135 °C possible for up to 60 minutes）

Vibration resistance
10 g （IEC 60068-2-27, vibration under resonance）

Shock resistance
50 g （per IEC 60068-2-6, mechanical shock）

Process connections

   Standard                     Thread
    Hygienic                           G 1, flush 1） 2）
    Grooved union nut DIN 11851        DN 40
      with conical coupling 3）         DN 50
    Tri-clamp                          1 1/2"
                                       2"
    Clamp DIN 32676                    DN 32
                                       DN40

                                       DN 50
   1） Sealing from EPDM or FKM
    2） Suitable for WIKA adapter system model 910.61; see data sheet AC 09.20
    3） For a 3-A conform connection of process connections with milk thread fittings per DIN 11851, profile sealings from SKS Komponenten BV or Kieselmann GmbH have to be used.

Electrical connections

   Connections
    Circular connector M12 x 1, 4-pin
    Circular connector M12 x 1, 5-pin 1）
   1） Only for version with two switching outputs and analogue signal

   Electrical safety
    Overvoltage protection:       DC 40 V
    Short-circuit resistance:     S+ / SP1 / SP2 vs. U

Reverse polarity protection: U+ vs. U

Insulation voltage: DC 500 V

Connection diagram

Materials

Wetted parts
Process connection: Stainless steel 1.4435 / 316L

   Non-wetted parts
    Case:           Stainless steel 304
    Keyboard        TPE-E
    Display window: PC
    Display head:   PC+ABS-Blend

Pressure transmission medium
KN59 Neobee® M-20, FDA conform

Approvals, directives and certificates

   Certificates
    3-A （74-03）
   This instrument is 3-A marked based on a third party verification for conformance to the 3-A standard 74-03.

   CE conformity
     This instrument is a pressure accessory as defined by the
        97/23/EC pressure equipment directive.
    EMC directive 2004/108/EC, EN 61326 emission （group 1,
        class B） and interference immunity （industrial application）

RoHS conformity
Yes

   Available documentation and certificates
    Material certificate per EN 10204-3.1
    Confirmation of the class and indication accuracy
    FDA conformity
    Manufacturer's declaration regarding EU regulation 1935/2004 EC
    Others on request

Dimensions in mm
Pressure switch