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   Pressure Transmitters:
   Pressure Transmitters>> STK137
Name:     Pressure transmitter STK137
Type:      STK137
Specifications:      · Ceramic sensor with diaphragm Al2O3, 99.9%
      Silicon sensor (Optional)
    · Separate electronics and connection compartments
    · Easily accessible operation elements on the outside of the
      instrument    
    · Range: -0.1~ 70MPa
   
  Power supply (polarity protected) :
  * Supply voltage :10.5...45 VDC
   
  Output signal :
  * 2-wire-system :4...20 mA with superimposed signal for HART protocol digital communication
* 3-wire-system (optional):1...5V
* Signal range:3.8mA...22.8mA
* Signal on alarm :3.8mA/ 22.8mA/Others on request
   
  Electrical protection :
  * Insulation resistance :>250M Ω
* Short-Circuit protection :Permanent
* Reverse polarity protection :No damage, and no function
* Overvoltage protection :500 V
   
  Performance :
  * Accuracy :Nominal range 0.1%
                  0.25% accuracy for range turndown 4:1
                  0.5% accuracy for range turndown 10:1
* Power supply effect :Negligible
* Vibration effect :<0.01% of URL /g when tested 200Hz in any axis relative
* Thermal effect :±0.05%/10K
* Compensated temperature range of sensor:-20...80℃
* Permissible load:≤50(V-12)Ω
* Stability:0.1% FSO/Year
* Switch on delay :5s
* Damping :0 to 100s, step: 0.1s
* Response time:200 ms (without consideration of electronic damping)
* Self stability configuration :0 to 2%
* Filter configured:0 to 160 uA
* Adjustability:Zero-adjustment screw
* Communication resistance for HART Protocol:Typ. 250 Ω
   
  Application conditions:
  * Humidity :5...98%
* Ambient and operation :-40-85℃ (without display), -20-70℃ (with display)
* Storage :-40-85 ℃
* Ingress protection :IP 65
* Electromagnetic compatibility(EMC):Interference immunity and interference emission according to
   GB/T17626.2-1998), compliance with IEC 61000-4-3:1995.
   
   
 
 
 

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