• XSA-ZT thermal resistance or thermocouple input isolation barrier (smart type) XSA-ZT thermal resistance or thermocouple input isolation barrier (smart type)

XSA-ZT thermal resistance or thermocouple input isolation barrier (smart type)

Item No: DYT12168219

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XSA-ZT thermal resistance or thermocouple input isolation barrier (smart type)

·  1 in 1 out, 1 in 2 out, suitable for RTD or thermocouple temperature sensor, intrinsically safe input. The settings can be configured. 0/4~20mA output. Terminal supply or DIN rail power supply is available. 

·   XSA-ZT is suitable for the input of the RTD or thermocouple signal in the hazardous area of the field. After isolation, it is converted into a standard current signal output to the safety zone control system or other meter.

·   Switch the thermocouple and thermocouple input signals according to different wiring methods. Input signal type or range can be configured via software.

·   Output signal 4~20mA or 0~20mA.

·   This product requires a separate DC power supply. Voltage-type magnetic isolation between power supply-input-output.

Model /Selection Table:


   Model and code


  Basic model


    Thermal resistance or thermocouple input isolation barrier (smart)

  Special function


    Input line fault alarm, sensor fault alarm


    Default, no special function

  Channel form


    1 in 1 out


    1 in 2 out

  Input signal


    Thermal resistance (RTD) or thermocouple (TC)

  Output signal






    Special order

  Power supply voltage


    Power supply (terminal) 2032VDC


    Power supply (rail)  2032VDC (special power supply DIN rail required)

  Service Code


    Product Service Code

   Selection example
   Example 1:  XSA-ZT11-UA-V1-QC9A ...... (1 input and 1 output, thermal resistance or thermocouple input isolation barrier, LCD display, output signal 4~20mA, terminal power supply 20~32VDC) 
   Example 2:  XSA-ZTF12-UA-V1-QC9A ...... (1 input and 2 output, thermal resistance or thermocouple input isolation safety barrier, input line fault alarm function, output signal 4~20mA, terminal power supply 20~32VDC)
   Example 3:  XSA-ZT12-UA-V2-QC9A...... (1 in 2 out, thermal resistance or thermocouple input isolation barrier, output signal 4~20mA, rail supply 20~32VDC)
   Optional accessories 
   · Configuration software: CRFW-2000, CRFA-1904
  · Calibration interface: CR-2206, FAIF-1904
  · Dedicated power supply DIN rail: PSDR-3000 series


Technical data:








    Housing Material / Color

     PC(Polycarbonate)+PPT Material / Black Gray

    Protection level



Environmental conditions:

    Ambient temperature


    Ambient temperature (storage or operation)


    Ambient humidity (operation)

     5~95RH (no condensation)


Input (intrinsically safe):

   Available sensor type (RTD)

    Pt100, Cu50 and other thermal resistance

   Available sensor type (TC)

    K, E, S, B and other thermocouples

   Temperature measurement range

    Range depends on sensor type



   Current output

    4~20mA ;  0~20mA

   Maximum output current


   Current output load

    Adaptive load 0~300Ω (factory default)

   Output ripple

    <10mV p-p

   Output status at sensor failure

    Output current <3.5mA (lower limit) or >21mA (upper limit)


Power supply:

  Rated supply voltage


   Power supply voltage range


  Maximum current consumption

    <45mA (1 in 1 out); <75mA (2 in 2 out)


General parameters:

   Standard accuracy

     Typical value±0.1%FS

   Zero migration range

     -10~100mV or0~385Ω

   Range migration range

     3.8~100mV or 12.8~400Ω

   Output resolution

     <3.8~100mV or 12.8Ω~400Ω range, 1μA

   Thermocouple input, cold junction compensation error

     ±0.5~1℃ (compensation range -15~+75°C)

   Thermal resistance input, wire resistance effect

     Thermal resistance three-wire input (≤10Ω/line), <±0.005 %/Ω

   Load change effect


   Temperature drift

    · -10~35 mV range: 0.0005% or 0.6μV (whichever is larger) 
    · -10~75 mV range: 0.0005% or 1.2μV (take the larger one)
    · 10~400Ω range: 0.0015% or 4mΩ (whichever is larger)

   Power-on or storage time drift

      ±2μA (180 days)

   Response time


   Power-on stabilization time


   Maximum withstand voltage

     Input-output-power supply: 2500V AC RMS / 1 minute

   Protection parameters

     · Power-on shock protection, power-on slow start >20ms   

     · Distribution protection, distribution output clamp current 28mA (±4mA)
     · Reverse power supply protection, reverse voltage -30V
     · Output protection, output clamp current 22mA (typical)
     · Port misconnection and surge protection:
     A.The power-input-output between the two ports of the self-loop can withstand the external loop voltage <±24V.       

     B. Input-output-power supply can withstand 2500V RMS/1 minute without damage.       

     C. The short circuit or open circuit formed by the misconnection of the terminal is not damaged.

   Electromagnetic compatibility (EMC)

      in accordance with IEC 61326-1 (GB/T 18268), IEC 61326-3-1

  LCD display or LED backlight indication

     · LCD display: input value and output value

     · LED backlight indication: Power on, the product model on the panel is clearly visible through the LED backlight perspective. 

   Applicable occasions

      Installed in a safe place, can be connected with intrinsically safe equipment in Zone 0, Zone 1, Zone 2; IIC, IIB, IIA; T4~T6 danger zone

   Field device suitable for connection

      Thermal resistance or thermocouple temperature sensor, millivolt signal, transmitter or current source signal

   Mounting method

      Horizontal or vertical mounting, can be mounted on standard 35mm DIN rail (or dedicated busbar backplane powered DIN rail)


Wiring parameters:

   Rigid conductor cross section (min/max)


   Flexible conductor cross section (min/max)


   Minimum Conductor Cross Section (AWG))


   Maximum Conductor Cross Section (AWG) 14


   Stripping length


   Connection type

    M3 screw fastening connection

   Screw torque

    Up to0.6Nm


Explosion-proof parameters:

   Maximum safety voltage (Um)


   Maximum output voltage (Uo)


   Maximum output current (Io)


   Maximum output power (Po)


   Maximum external inductance (Lo)


   Maximum external capacitance (Co)




    CE certification

   in line with CE standards

   National Explosion-proof Electrical Product Quality Supervision and Inspection Center (CQST) certification

   [Ex ia Ga] IIC conforms to GB 3836.1, GB 3836.4, GB 3836.20


Product drawing / terminal wiring diagram:


Product Image Details

XSA-ZT thermal resistance or thermocouple input isolation barrier (smart type) 1

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