TE KPSI 745 Hydrostatic Level Transducer

The KPSI 745 Submersible Hydrostatic Level Transducer is specifically designed to meet the rigorous environments encountered in a slurry or highly viscous application and can be installed in a 4” pipe. It provides precision depth measurement under most hostile 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. 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 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 environment.

Features :

  • 3.5” OD allows for installation in a 4” pipe
  • Custom polyurethane or ETFE cable lengths
  • Level ranges up to 115 ft. (35 m) H2O
  • Integral diaphragm protector
  • Optional lifetime lightning protection

Applications :

  • Lift station monitoring
  • Pump control
  • Slurry tank liquid level
  • Wastewater

Specification :

Level Ranges
Full-scale level ranges
(Intermediate-level) ranges are available)
10 thru 115 ft. H2O (3 thru 35 m H2O)Vented Gage Reference
Proof pressure1.5 x FS
Burst pressure2.0 x FS
Static Performance
Static Accuracy
(combined effects of non-linearity, hysteresis
and repeatability, best fit straight-line method)
±0.25% FSOBFSL method
Resolution±0.0001% FS
Excitation9-28V – VDC output
9-28V – mA output
15-28V – VDC output
10-28V – VDC output
0-5V, 0-2.5V, 0-4V
Input current20 mA max
3.5 mA max
For mA output
For VDC output
Output4-20mA, 0-5 VDC, 0-2.5VDC,
0-4VDC, 0-10VDC, 1.5-7.5VDC
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 ImpedanceSee the loop diagram for the mA output
20 ohm for VDC output
Insulation Resistance100 mega-ohm at 50 VDC 
Circuit ProtectionPolarity, surge/shorted output 
Approximate Weight2.25 lbs. (1020.58 g) transducer 0.05 lbs./ft. (79 g/m) cable
Cable jacket materialPolyurethane (standard)
ETFE (optional)
Cable pull strength200 lbs. (90 kg) 
Cable number of conductors4
Cable conductor size22 AWG
Cable sealMolded polyurethane
FKM Gland
For polyurethane cable
For ETFE cable

Download Datasheet: TE Connectivity KPSI 745 Submersible Level Transducer

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