ULB-I MODBUS Level Transmitter is a fully sealed submersible intelligent level measuring instrument.

Based on silicon piezoresistive technology, this product is designed for liquid level measurement by using silicon die with good stability and processing electric circuit of high accuracy smart transmitter, and using precise digital temperature compensation technology and the non-linearity revision technology.

The waterproof cable with vent hose of this MODBUS Level Transmitter is sealed connected with its housing, it is suitable for submersible applications.

The output of ULB-I is digital signal, this makes this MODBUS Level Transmitter carry on transmission with computer directly.
Features
  • Data networking gathering
  • Advanced circuit design
  • HART protocol or MODBUS protocol (RS485 interface)
  • Full stainless steel structure, small profile, light weight
  • Digital communication technology

Specifications

Pressure Medium

  • Gas or Liquid Compatible to Wetted Stainless Steel

Pressure Ranges

  • 0 ~ 1 mH₂O...200 mH₂O

Overload Pressure

  • 150 % Full Scale

Output Signal

  • Digital Signal or Digital Signal with 4~20 mA Analog Signal

Communications

  • Modbus Protocol (RS-485 Interface) or HART Protocol

Accuracy

  • 0.1 % FS, 0.25 % FS (Standard), 0.5 % FS

Load Resistance

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

Long-Term Stability

  • < 0.2 % Full Scale/year

Supply Voltage

  • 12 ~ 32 Vdc

Compensated Temperature Range

  • -10° ~ +70° C

Operating Temperature Range

  • -30° to 100° C

Storage Temperature Range

  • -40° to 120° C

Temperature Coefficient of Zero

  • 0.2 % Full Scale/10° C

Temperature Coefficient of Span

  • 0.2 % Full Scale/10° C

Electrical Connection

  • Ø 7.2 mm PUR Cable with Vent Hose

Material of Wetted Part and Housing

  • 316 Stainless Steel

Material of Pressure Membrane

  • 316L Stainless Steel

  • ULB-I MODBUS Level Transmitter is Designed with IP68 Protection, it is Widely Applied in Petroleum, Chemical Industry, Medicine, Metallurgy, Hydrology Exploration etc.

Documentation

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