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Shenzhen Selen Technology Co., Ltd

Consultation Hotline 19925361696 19925366196

Shenzhen Selen Technology Co., Ltd

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  • Deto 6740 dew point transmitter | Deto pressure dew point transmitter

    Model:testo 6740

    Brand:TESTO

    Introduction:Pressure dew point transmitter, used to measure the pressure dew point value of air pressure system or drying system. It uses the temperature sensor with reliability verification of Tetu, and the data can be kept stable for a long time. Measuring range :-45 °Ctpd to 30 °Ctpd

  • Pressure dew point transmitter for measuring pressure dew point value of air pressure system or drying system.


    Configuration products


    The use of Tetu reliability proven temperature sensor, data can be stable for a long time
    Measuring range :-45 °Ctpd ~ 30 °Ctpd
    Connector G ½ or NPT ½-- is optional
    Disy main menu interface, easy to operate
    Can be directly output, free to choose whether to have the disy function
    Field single point calibration
    Analog signal output 4 ~ 20 mA (2 wire system) and 2 switch signal alarm output
    The lightweight design allows the body to rotate at 350°, making it easier to read data from different angles
    The pressure dew point calibration module can be used to calibrate the equipment during the operation of the instrument, without disassembling (2-point pressure calibration module) -> Alternative to dew-point mirror calibration, more economical


    Technical parameters

    The shell

    stic, polypropylene

    Size

    199.5 x 37 x 37 (analog signal output interface)
    203.5 x 37 x 37 (switch signal output port)

    Rotatable disy

    350° rotation

    Protection level

    IP 65

    EMC

    符合89/336 EEC标准

    Operating temperature

    -20 ~ +70 °C

    Storage temperature

    -40 ~ +80 °C

    Sensor

    Humidity

    Testo HumiditySensor,在 -40 °Ctpd已做低湿校正

    Temperature

    NTC

    Sensor保护

    Stainless steel sintered protective cap

    Measuring range

    Pressure dew point

    -60 ~ +30 °Ctpd

    Temperature

    0 ~ 50 °C

    Atmospheric dew point

    -80 ~ -15 °Ctpd (at 30 bar relative pressure)
    -70 ~ 10 °Ctpd (at 3 bar relative pressure)
    -60 ~ 30 °Ctpd (at 0 bar relative pressure)

    承压

    testo 6740: Can withstand 50 bar absolute pressure
    Measuring chamber 0554.3303: Can withstand 15 bar absolute pressure

    Uncertainty

    Humidity

    /-1 K at 0 °Ctpd
    /-3 K δ δ δ -20°Ctpd δ δ δ
    /-4 K / -40°Ctpd / /

    Temperature

    +/-0.5 K (0 ~ 50 °C)

    Analog signal output

    Analog signal

    4 ~ 20 mA, 2-wire system

    Output range

    Can be set
    Standard: 4 ~ 20 mA = -60 ~ 30 °Ctpd

    The output parameter

    °Ctpd, °Ftpd, °CtA, °FtA, % RH, ppmV, mg/m3, °C, °F

    Resolution

    12 Bit

    Precision

    +/-40 μA

    Switch signal output (optional alarm interface,0554 3302)

    Connect

    2 Non-fixed NO (normally open) contact, max. 30 V/ 0.5A

    Switching quantity

    Standard: 6 °/12 °Ctpd, can be set

    Power supply

    Voltage 24V DC (10 ~ 30V)

    With alarm connector (0554 3302) 20 ~ 28 V DC

    Current

    21 mA (without alarm connector)
    65 mA (with alarm connector)

    Maximum load

    10 V DC: 100 ohm, 30 V DC: 950 ohm



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