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   Pressure Transmitters:
   Pressure Transmitters>> STK335
Name:     Differential Pressure Transmitter with HART-protocol STK337
Type:      STK337
Specifications:     · Maximum range trundown 100:1
    · Backlight LCD display for the dark environment
    · Separate electronics and connection compartments
    · Excellent stability
    · Zero-adjustment screw
   
  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
* Signal range:  3.8mA...22.8mA
* Signal on alarm :  3.8mA/ 22.8mA/Others on request
   
  Electrical protection :
  * Insulation resistance :  >250M
* Short-Circuit protection :  Permanent
* Reverse polarity protection :  No damage, and no function
* Overvoltage protection :  500 V
   
  Performance :
 
* Accuracy :     3S
   0.1% accuracy for range trundown 5:1 (0.1+0.01XURL/Span) between 1/5 and 1/50 of   measuring
  4S...7S
  0.075% accuracy for range trundown 10:1 (0.075+0.00751XURL/Span) between 1/10 and   1/100 of mea suring
  8S
  0.2% accuracy for range trundown 10:1 (0.2+0.01XURL/Span) between 1/10 and 1/100 of   measuring
* Static pressure effect : Zero error: 0.1%/7Mpa
                                            Span error: 0.2%/7Mpa
* Power supply effect : Negligible
* Vibration effect : <0.01% of URL /g when tested 200Hz in any axis relative
* Installation position effect : Zero shift which can be calibrated out, no span effect
* Thermal effect :0.45%/55 ℃
* Static pressure :30bar...130bar
* Stability: 0.1% of URL/1 year
* Switch on delay : 5s
* Cycle time/Updater time :0.25s
* 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
   
  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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