Capacitive Proximity Sensors TV

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					                           BEIJING TWELL TECHNOLOGY DEVELOPMENT CO. LTD.                                     TV618 HandBook




Capacitive Proximity Sensors
TV618




                                    北京中军天韦科技发展有限公司
                                    BEIJING TWELL TECHNOLOGY DEVELOPMENT CO., LTD.
                                    地址:北京市北京经济技术开发区天华北街 7 号 6-2-202
                                    ADD:Room 2-202, Tower 6, No.7 Tianhua North Street, BDA, Beijing, China
                                    邮编(P.C.)  :100176 电话(Tel)     :67830100 传真(Fax)        :67830083
                                    网址(Web)   :www.twell.cn   邮箱(E_mail)     :twell_cn@yahoo.com.cn




_________________________________________________________________________________________________________
                ADDR:Room 2-202, Tower 6, No.7 Tianhua North Street, BDA, Beijing, China             P.C.:100176
              TEL:+86-10-67830100 FAX:+86-10-67830083         Web:www.twell.cn         E-mail:twell_cn@yahoo.com.cn
                             BEIJING TWELL TECHNOLOGY DEVELOPMENT CO. LTD.                                     TV618 HandBook



1   Summarize

The capacitive proximity sensors TV618 are well accepted as sensors that are reliable, and there are a
large number of versions to suit many applications in the processing industry and throughout mechanical
engineering. Nowadays they are indispensable. Important parameters for the user are the achievable
switching distance and the size of the sensor. Larger switching distances require larger sensors.

The sensors of the TV618 Series are based on a different measuring principle, the
three-electrode-principle.

Advantages:
   Extreme large sensing distance, up to 50 mm
   miniature sensors from M12
   Measurement of smallest changes in capacity
   suitable for high-temperature areas up to +250°C
   up to three adjustable switching points in one sensor
   (Duplex and Triplex operation)



2   principle

With this Measuring principle, one electrode is removed to the outside. The protective
conductor-potential PE – that means the machine and system potential – is now also used as a
measurement electrode. The evaluation takes place with remote electronics. Due to the absolute
measurement of the alteration in capacity, to a large extent, there is an independence of the static basic
capacity.

Thanks to the remote evaluation electronics and the housing materials used, the standard types of
capacitive sensors of theTV618 are suitable for use in high-temperature areas up to +250°C. For use at
high temperatures, or in applications with large variations in temperature, the drift has to be determined
by empirical tests. This is necessary, because for the mounting conditions, there is a dependency on the
drift.


3   specification

    Operating voltage                           12~36V DC
                                                220V AC
    Operating distance                          2~50mm(depended on Thread)
    Time of response                             0.2s
                                                Choice:0∼99s, relay
    Output                                      NPN or PNP;relay
    Repeatability                               conductivity ≤±1.6mm
    Permitted temperature of Capacitive evaluation units                        -20℃~+80℃
    Permitted ambient temperature of sensor                                     -60℃~+250℃
    Thread of sensor                           M12×1、M18×1、M30×1.5、M32×1.5
     material                                 1Cr18Ni9Ti and PTFE
_________________________________________________________________________________________________________
                  ADDR:Room 2-202, Tower 6, No.7 Tianhua North Street, BDA, Beijing, China             P.C.:100176
                TEL:+86-10-67830100 FAX:+86-10-67830083         Web:www.twell.cn         E-mail:twell_cn@yahoo.com.cn
                               BEIJING TWELL TECHNOLOGY DEVELOPMENT CO. LTD.                                     TV618 HandBook

    degree of protection                 IP65 (cast aluminum rind)
                                         IP20 (Plastic rind )


    Operation distance of sensor
                       Type                                 Thread              Operating distance(mm)
                         A                                  M12×1                            2
                         B                                  M18×1                            5
                         C                                 M30×1.5                           15
                         D                                 M32×1.5                           18




4      Noticing of application

       1)Avoiding wrong triggering , sensor should keep away from other object especially metal
object.
       2)sensor can’t be mounted closing to interface equipment, beater, importer of materials,
etc.
       3)Don’t damage the insulate surface in mounting.



5      Type Code

       Type code table:
        Code no. 1∼5                  Means of code

        TV618                         Capacitive proximity sensors

        Code no. 6                    Choice of permitted temperature

        A                             150 ℃

        B                             200 ℃

        C                             250 ℃

        Code no. 7                    power

        A                             220V AC

        D                             24V     DC

        Code no   8                   output

        J                             Delay

        P                             PNP

        N                             NPN

        Code no. 9                    choice of delay time

        0                             no delay

        1                             suck delay

        2                             release delay

        Code no. 10                   Type of sensors

        A                             M12×1

_________________________________________________________________________________________________________
                    ADDR:Room 2-202, Tower 6, No.7 Tianhua North Street, BDA, Beijing, China             P.C.:100176
                  TEL:+86-10-67830100 FAX:+86-10-67830083         Web:www.twell.cn         E-mail:twell_cn@yahoo.com.cn
                                 BEIJING TWELL TECHNOLOGY DEVELOPMENT CO. LTD.                                   TV618 HandBook

       B                              M18×1

       C                              M30×1.5

       D                              M32×1.5

       Code no. 11∼13                 Distance of cable(cm)

       XXX                            Max. 500 cm,


     Example
       Code no.      1 2     3    4   5   6     7    8    9     10     11      12      13

           内容        T V    6    1    8   B     A    J    0     C       2       0      0
     TPYE:TV618-BAJ0C-200
     MEANS: capacitive proximity sensor- permitted temperature 200 – power supply 220VAC – delay output- no delay time- type C

- cable length 2 meter




6   Figure of product




_________________________________________________________________________________________________________
                    ADDR:Room 2-202, Tower 6, No.7 Tianhua North Street, BDA, Beijing, China             P.C.:100176
                  TEL:+86-10-67830100 FAX:+86-10-67830083         Web:www.twell.cn         E-mail:twell_cn@yahoo.com.cn

				
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