Log In        Register

TxBlock-USB Linearized Programmable Thermocouple and RTD 2-wire 4 to 20mA Temperature Transmitter

TxBlock-USB Linearized Head Mounted Programmable Temperature Transmitter
    Price Starting At: $105.00

    Overview

    The TxBlock-USB is a programmable Linearized 2-wire 4 to 20mA head mounted temperature transmitter. TxBlock-USB accepts Thermocouples J, K, T, E, N, R, S, B and Pt100 and Pt1000 RTD's. It can be optionally factory programmed or is quickly and easily programmed to your needs in the field using the optional USB Cable and Windows configuration software. The configuration is accomplished by connecting the transmitters USB micro-B port the of transmitter to your PC USB port. The configuration does not require that the transmitter be powered.
    Features
    • Programmable for Thermocouples Types J, K, T, E, N, R, S, B and Pt100 and Pt1000 RTD's
    • Linearized 2-Wire Loop powered 4 to 20 mA or 20 to 4 mA output
    • Cold junction compensation for thermocouples
    • Cable resistance compensation on 3 or 4 wires Pt100 connection
    • USB micro-B port allows direct PC connection for configuration. USB Class CDC
    • Optional USB Cable and Windows configuration software
    • Power supply: 10 to 35 Vdc
    • RTD Typical Accuracy: ±0.1% for Pt100 and Pt1000
    • Thermocouple and mV Typical Accuracy: ±0.1%
    • Temperature effect: Smaller than 0.16%/25°C
    • Working temperature: -40 to +85°C (-40 to 185°F)
    • Sensor break detection according to NAMUR NE43 recommendations
    • Dimensions: 43.5 mm x 20.5 mm D x H
      Shipping Estimated Shipping 1 Week

    TxBlock-USB Programmable Temperature Transmitter Specifications
    Thermocouple Input Types Types J, K, T, E, N, R, S and B
    Impedance > 1 MΩ
    3 Wire RTD Input Pt100 and Pt1000
    Excitation Voltage Pt100 Type 3-wire
    Excitation 0.8 mA, a= 0.00385, according IEC 60751 (ITS-90)
    Pt1000 Type 3-wire
    Excitation 0.17 mA, a= 0.00385, according IEC 60751 (ITS-90)
    Voltage Input 0 to 50 mVdc
    Impedance > 1 MΩ
    Range, Accuracy and Minimum Span See Range and Accuracy Table Below
    Linearization Yes
    Isolation Between Input/Output No
    Switch-on Delay <2.5 s. The accuracy is only guaranteed after 15 min
    Calibration Error 0.11% (RTD and mV) and <0.15% (TC)
    Terms of Reference Ambient 25°C; voltage: 24 Vdc, load: 250Ω settling time 10 minutes
    Temperature Effect <±0.16%/25°C
    CJC Thermocouples <±1°C
    Response Time typical 1.6 s
    Sensor Break Protection Programmable Upscale or Downsacle
    Maximum Voltage Allowed at Input Terminals 3V no sensor
    RTD Current 800µA
    RTD Cable Resistance Effect 0.005°C/Ω
    Maximum Allowable Cable Resistance for RTD 0.005°C/Ω
    Power Supply 10 to 35 Vdc
    Power Supply Influence 0.006%/V typical (percentage of the full measure range)
    Output 4 to 20mA or 20 to 4mA current, 2-wired
    linear in relation to the temperature measurement by the selected sensor
    Output Resolution 2µA
    Maximum Load RL RL (max.) = (Vdc - 10)/0.02 [Ω]
    Where Vdc= Power supply voltage (10 to 35 Vdc)
    Ambient Operating Temperature -40 to 85°C (-40 to 185°F)
    Humidity 0 to 90% RH non-condensing
    USB Connection 5-pin USB mini-B 5 connection
    Housing Material ABS UL94-HB
    Housing Dimension 43.5mm Dia. x 20.5mm H
    Electromagnetic Compatibility EN 61326-1:2006
    TxBlock-USB Sensor Type, Range and Minimum Span Table
    Sensor Type Temperature Range Minimum Span Typical Accuracy Minimum Accuracy
    Type K (NiCr-NiAl) -238 to 2498°F
    -150 to 1370°C
    212°F
    100°C
    0.1% 0.15%
    Type J (Fe-CuNi) -148 to 1400°F
    -100 to 760°C
    212°F
    100°C
    0.1% 0.15%
    Type T (Cu-CuNi) -256 to 752°F
    -160 to 400°C
    90°F
    50°C
    0.1% 0.15%
    Type E (NiCr-CuNi) -130 to 1328°F
    -90 to 720°C
    212°F
    100°C
    0.1% 0.15%
    Type N (NiCrSi-NiSiMg) -454 to 2372°F
    -270 to 1300°C
    212°F
    100°C
    0.1% 0.15%
    S (Pt10%Rh-Pt) -58 to 3200°F
    -50 to 1760°C
    752°F
    400°C
    0.1% 0.15%
    R (Pt13%Rh-Pt) -58 to 3200°F
    -50 to 1760°C
    752°F
    400°C
    0.1% 0.15%
    B (Pt30%Rh-Pt6%Rh) 932 to 3308°F
    500 to 1820°C
    752°F
    400°C
    0.1% 0.15%
    Pt100 IEC60751 -328 to 1202°F
    -200 to 650°C
    104°F
    40°C
    0.10% 0.12%
    Pt1000 IEC751 -328 to 1202°F
    -200 to 650°C
    104°F
    40°C
    0.13% 0.19%
    Voltage 0 to 50mV 5mV 0.1% 0.15%
    close