TE Submersible Level Transducer KPSI 320

TE Submersible Level Transducer KPSI 320 is a submersible hydrostatic level transducer specifically designed for small bore applications and to meet the rigorous environments encountered in groundwater level meters. This transducer provides repeatable, precision depth measurements under the 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 durable waterproof housing constructed of 316 stainless steel or titanium. The 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.

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

Applications :

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

Specification :



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


+0.0001% FS



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


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 the 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)


Cable number of conductors


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

For further info please contact us, at marketing@wmablog.com