Water Level Transmitter of ULB3351 is one kind of scene transmitter with flange type for mounting in pipelines or vessels.

Because its isolating diaphragm contacts liquid medium directly, not need pressure pipe to draw out the pressure from positive pressure side (H side), therefore ULB-335 is suitable for level, pressure, density measurement of high temperature, macro viscosity, easy crystallized, easy precipitated media.

ULB3351 transmitter includes plane type and insert type. The mounting flange has 3” and 4” according to ANSI standard. If the user has any special requirement please indicate on ordering sheet.

The wetted part material of ULB3351 has SS 316L, Hastelloy-C 276, tantalum and Monel etc for options.

This water level transmitter is especially suitable for level, pressure and density measurement of special media (high temperature, macro viscosity, easy crystallized, easy precipitated, strong corrosion) in open or sealed containers.
Features
  • Measuring range:0 ~ 2.67 kPa...2500 kPa
  • For level, pressure, density measurement of high temperature, macro viscosity, easy crystallized, easy precipitated or strong corrosive media
  • Adjustable range: 6:1 for analog type, 15:1 for intelligent type
  • High accuracy, good reliability and stability
  • Intrinsic safety and flame proof option

Specifications

Pressure Medium

  • Liquid Compatible to Stainless Steel

Measuring Ranges

  • 0 ~ 2.67 kPa...2500 kPa

Output Signal

  • 4~20 mA (HART Signal)

Accuracy

  • 0.1 % Full Scale, 0.2 % Full Scale (Standard), 0.5 % Full Scale

Load Resistance

  • RL = (U-12 V)/0.02 A (4~20 mA Current Output), U-Loop Voltage (V)

Long-Term Stability

  • < 0.1 % Full Scale/year

Supply Voltage

  • 12 ~ 45 Vdc

Storage Temperature Range

  • -40° ~ 105° C

Operating Temperature Range

  • -40° ~ +85° C

Measured Media Temperature Range

  • -40° ~ +200° C

Temperature Coefficient of Zero

  • 0.1 % Full Scale/10° C

Temperature Coefficient of Span

  • 0.05 % Full Scale/10° C

Insulation Resistance

  • 100 MΩ @ 50 Vdc

Process Connection

  • 3” Mounting Flange or Others

Protection

  • IP67

Explosive-Proof

  • Exia II CT6 or Exd II CT6

Material of Pressure Membrane

  • 316L Stainless Steel

Oil-Filled

  • Silicone-Oil or Fluorocarbon Oil

Housing Material

  • Low Copper Aluminum Alloy

Documentation

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