TE KPSI 320 Submersible Level Transducer

TE KPSI 320 Submersible Level Transducer is a submersible hydrostatic level transducer specifically designed for small bore applications and to meet the rigorous environments encountered in groundwater level meter. This transducer provides repeatable, precision depth measurements under most adverse conditions.

Every KPSI Transducer utilizes a highly accurate pressure sensor assembly specifically designed for hostile fluids and gases. The assembly is integrated with supporting electronics in a durable waterproof housing constructed of 316 stainless steel or titanium.

he attached electrical cable is custom manufactured and includes para-aramid synthetic fiber members to prevent errors due to cable elongation and a unique water block feature that self-seals in the event of accidental cuts to the cable. Each vented reference transducer is shipped with our Superdry Vent Filter that prevents moisture from entering the vent tube for at least one year without maintenance, even in the most humid environments.

TE KPSI 320 Submersible Level Transducer Features

  • Submersible level transducer
  • Small-bore, 0.75” diameter
  • ±0.25% FSO static accuracy
  • Custom polyurethane or ETFE cable lengths
  • Welded 316SS or titanium body
  • Custom level ranges up to 700 ft. (210 m) H2O
  • Multiple analog outputs
  • Ported nose cap
  • Optional lifetime lightning protection
  • Long-life vent filter or aneroid bellows
  • Available molded cable seal


  • Surface water monitoring
  • Well monitoring
  • Groundwater monitoring
  • Pump control
  • Slug tests
  • Level control
  • Ballast tank control

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TE KPSI 320 Submersible Level Transducer Specification

Parameter Comment
Level Ranges
Full-scale level ranges
(Intermediate level ranges are available)
5 thru 700 ft. H2O, (1.5 thru 210 m H2O) Vented gage reference
10 thru 700 ft. H2O, (3 thru 210 m H2O) Sealed gage reference
35 thru 700 ft. H2O, (10 thru 210 m H2O) Absolute gage reference
Proof pressure 1.5 x FS
Burst pressure 2.0 x FS
Static Performance
Static accuracy
(Combined effects of non-linearity, hysteresis
and repeatability, best fit straight-line method)
±0.25% FSO BFSL method
Resolution +0.0001% FS
Excitation 9-28 V – VDC output
9-28 V – mA output
15-28 V – VDC output
10-28 V – VDC output
0-5 V, 0-2.5 V, 0-4 V
0-10 V
1.5-7.5 V
Input current 20 mA max., 3.5 mA max. For mA output, for VDC output
Output 4-20 mA, 0-5 VDC, 0-2.5 VDC,
0-4 VDC, 0-10 VDC, 1.5-7.5 VDC
For ranges < 5 ft. (1.5 m) H2O,
only 4-20 mA output is available
Zero offset ±0.25 mA for mA output
< 0.25 VDC for VDC output
Output impedance See loop diagram at Datasheet for mA output
20 ohm for VDC output
Insulation resistance 100 megaohm at 50 VDC
Circuit protection Polarity, surge/shorted output
Approximate weight 0.47 lbs. (224 g) transducer
0.05 lbs./ft. (79 g/m) cable
Cable jacket material Polyurethane (standard),
ETFE (optional)
Cable pull strength 200 lbs. (90 kg) Polyurethane
Cable number of conductors 4
Cable conductor size 22 AWG
Cable seal Molded polyurethane
FKM Gland
For polyurethane cable
For ETFE cable

Download Datasheet: TE Connectivity KPSI 320 Submersible Level Transducer