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Senex Corporation ®
ST Series,
Submersible Pressure Transmitters
 
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Senex ST Series, Pressure Transmitters

Characteristics:

  • High Stability Depth/Level Transmitter
  • 0-5ft H2O through 0-1,500ft H2O
  • Moisture Free/Maintenance Free Vent Filter
  • EMI/RFI filtering with lightning protection
  • Standard accuracy ± 0.25% FSO
  • Double sealed cable exit
 
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  Product Description:  
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Designed for low cost of ownership
Senex’s ST Series Submersible Pressure Transmitter is designed for low cost of owneship for level /depth measurement applications in shallow or deep wells. Key features of the ST is its long term stability, internal protection from lightning via dual gas discharge tubes, internal EMI/RFI filtering, double sealed cable exit and a maintenance free vent filter.

Manufactured for extended life cycle
Every ST Series is built using advanced manufacturing techniques to ensure the integrity of the waterproof seal. Double sealing techniques are used and 100 % of all ST Series are submerged at our factory for at least 24 hours. Automated welding procedures and extreme environmental burn in, along with the internal protection against the harsh well conditions give Senex’s customers the confidence of product reliability over time.

Low power / alternate materials available
From 0-5ft H2O through 0-1500ft H2O, the ST Series is available in either a 4-20 mA or 0-5 Vdc output signal. For remote or battery powered systems, a low power option is available from a 5 Vdc, 1.5 mA supply. To futher enhance battery life, warm-up time is less than 3 mS. Other options include alternate materials of construction or Tefzel© cable.

 
 
  General Specifications :  
 
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Electrical  
Excitation
8-38 Vdc*
Output  
ST2
ST3
0-5 Vdc*
4-20 mAdc
Zero Balance :
±1% FSO
FSO Setting :
±1% FSO
Resolution:
Infinite (±.001% FSO usable)
Response Time: < 5 mS
Insulation Resistance:
1000 MO @ 50 Vdc
Warm-up < 3 mS
Reverse Polarity:
Protected
Power Supply Effect:
±.002% FSO per V input
EMI/RFI:
Internal Filtering
Short Circuit :
Protected Up to 40 Vdc
Lightning Protected: Dual gas discharge tubes
Performance  
Static Accuracy:
±0.25% FSO* (BFSL, RSS)
(combined effects of non-linearity, hysteresis &repeatability)
Repeatability :
±0.05% FSO
Temperature Effects :
±1.5% FSO over comp range
(combined effects of Zero & FSO with reference at 70 °F)
Long Term Stabily:
±0.25% FSO per year
Environmental  
Compensated Temp Range:
0 to 170 °F
Operating Temp Range:
-40 to 200 °F
Storage Temp Range:
-40 to 225 °F
Mechanical  
Pressure Ranges:
0-3 through 0-750 psi
(Customer may specify any range/eng. unit FOC) (Absolute, vacuum, compound available options)
Proof Pressure:
2X Full Scale
Burst Pressure:
5X Full Scale
Materials: 316L & 15-5 SST*
Pressure Port:
PVC Cap
Electrical Connector :
Submersible cable exit with 10ft polyurethane cable
Weight:
nominal 10 oz
 
 
  Downloads:  
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  pdf_pic Downloads: General Specifications  
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