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Senex Corporation ®
DPW Series, Electronic Pressure Control
Differential Pressure Switch
 
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Senex DPW Series  Differential Transmitters

Characteristics:

  • Ranges from 0-1 “ H 2O through 0-5k psi
  • High line/overpressure protection 316L SST wetted parts
  • Stability less than ±0.5% FSO per year
  • Line pressure to 7.5 psi
  • External adjustments
  • All Hasteloy C-276 wetted parts (available to NACE)
  • Analog output / Digital display
 
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  Product Description:  
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Designed for many markets/applications
The DPW version of Senex’s differential pressure transmitter is designed for mechanical switch replacement where ruggedness and reliability are required at a competitive price. The DPW is 100% solid state with no moving parts and is ideal for high-cyclical applications.

Wide pressure ranges available
The DPW is available from 1” H2O through 5,000 psi through the use of Senex’s DP or DPC Series pressure modules.

Manufactured for extended life cycle
Senex’s DPW is built using advanced manufacturing techniques to ensure symmetry between the Hi and Lo pressure ports. Symmetry, along with automated welded procedures and extreme environmental burn-in give Senex’s differential pressure products excellent performance and reliability over time and at high elevated line pressure.

Solid-State Switch with optional analog output
The DPW’s DPST switch is rated at 1 Amp @ 60 Vdc and is available in fixed or adjustable pressure settings. A 4-20 mAdc analog output proportional to pressure is optional.

 
 
  General Specifications :  
 
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Excitation
8-38 Vdc
Output
Input current
3 mA minimum
Zero Balance :
±1% FSO
FSO Setting :
±1% FSO
Optional Analog Output: 4-20 mAdc
Resolution:
Infinite (±.001% FSO usable)
Insulation Resistance:
1000 MO @ 50 Vdc
Response Time:
< 50 mS
Power Supply Effect:
±.002% FSO per V input
EMI/RFI:
Internal Filtering (DP2 & DP3)
Switched output
Switch:
DPST
Power :
DC: 1A @ 60 Vdc
Adjustability :
0-100% of range
Performance
Static Accuracy:
±1.% FSO* (BFSL, RSS)
(combined effects of non-linearity, hysteresis &repeatability)
Repeatability :
±0.15% FSO
Temperature Effects :
±1.5% FSO over comp range
(combined effects of Zero & FSO with reference at 70 oF)
Long Term Stabily:
±0.5% FSO per year
Environmental
Compensated Temp Range:
0 to 170 °F
Operating Temp Range:
-40 to 200 °F
Storage Temp Range:
-40 to 250 °F
Mechanical
Pressure Ranges:
0-1” H2O through 0-5,000 psiRange a: 0-1” H2O through 0-30 psi
Range b: 0-30 through 0-200 psid
Range c: 0-300 through 0-1k psid
Range d: 0-2k through 0-10 k psid
(Customer may specify any range/eng. unit FOC))
Line Pressure:
Range a & b: 1,000 psi
Range c: 3,000 psi
Range d: 7,500 psi
Burst Pressure:
Range a: Minimum 2k psi
Range b: Minimum 5k psi
Range c: Minimum 10k psi
Range d: Minimum 12k psi
Proof Pressure:
Range a: 1000 psi either side
All others: 5X Full Scale either side (10k psi max)
Materials:
Wetted Parts:
Non-wetted Parts:

Wetted Parts 316L SST
316L SST plus electrical connector
Pressure Port:
¼”-NPT Female*
Electrical Connector :
NEMA 4X cable exit (24” cable)
Weight: 20 oz
 
 
  Downloads:  
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  pdf_pic Downloads: General Specifications  
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