KPSI Series 705 Submersible Level Transducer

The Series 705 is a submersible hydrostatic level transducer specifically designed to meet the adverse environments encountered in wastewater applications. This suitably-sized transducer features a wide sensing area comprised of a Teflon® coated elastomeric diaphragm for reliable operation in highly viscous or slurry environments.

All KPSI Transducers utilize a highly accurate pressure sensor assembly. The assembly is integrated with supporting electronics in a durable waterproof housing constructed of 316 stainless steel or titanium. The attached polyurethane or Tefzel® electrical cable is custom manufactured to Pressure Systems’ specifications and includes Kevlar® 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 latest SuperDry™ Vent Filter that prevents moisture from entering the vent tube for at least one year without maintenance, even in the most humid environment.

These units are designed for installation in a Class I, Division 1, Groups A, B, C, and D, Class II, Division 1, Groups E, F and G, Class III, Division 1 hazardous location when connected to appropriate apparatus such as those manufactured by R. G. Stahl, Inc., and others. KPSI transducers are IS approved by UL, CUL and FM; and have a IP 68 and NEMA 6P housing protection rating. The Series 705 is CE compliant to EN 61000-6-4:2001 and EN 61000-6-2:2001.  All KPSI Transducer calibrations are traceable to the National Institute of Standards and Technology (NIST).

Dated 04/09

KPSI Series 705: Specifications

1. Intermediate level ranges are available.
2. Static accuracy includes the combined errors due to nonlinearity, hysteresis and nonrepeatability on a Best Fit Straight Line (BFSL) basis, at 25ºC per ISA S51.1.
3. Thermal error is the maximum allowable deviation from the Best Fit Straight Line due to a change in temperature, per ISA S51.1.
4. Worst case over compensated temperature range.
5. -20ºC to50ºC for level ranges <= 100 ft (70m) H20 when using ETFE cable.
6. Intrinsic safety limits excitation to 28V.
7. Custom VDC output levels can be provided up to 2.5 VDC less than the excitation supply voltage.
8. ETFE is a fluoropolymer (Teflon® derivative) material, Tefzel® or equivalent.
9. The power supply needs to be limited to 150 mA to avoid lock up of the gas tube after a suppression event.

Specifications subject to change without notice.