ESL044/5 High Corrosive Resistant Level Transmitter


ESL044/5 High Corrosive Resistant Level Transmitter | Ceramic Sensing

ESL044/45 line is liquid level transmitter of high accuracy, reliability and stability. With the sensing element of ceramics, the product is used for the measurements of corrosive liquid and gas. This product line features the housing of titanium alloy (044) and Teflon (045), both with ceramics sensing element of international brands, and the specially designed V/I converting amplifier circuit. It is easy to perform zero/span trim. Based on the locations, different high-strength breathable cables featuring wear-proof, acid/alkali resistance and oil resistance can be configured. ESL044/45 line is also non-polarized two-wire output and DC-AC three-wire output.


  • Pressure type: Gauge Pressure
  • High-corrosiveness resistant liquid level transmitter
  • Range: 0~0.5…50mH2O waterspout (Customize small range)
  • Accuracy: ±0.25%F.S, ±0.5%F.S, ±1.0%F.S
  • Stability: 0.25%F.S/Year(typical), 0.5%F.S/Year(maximum)
  • Customized working temperature: -20℃~120℃
  • Signal Output: 4~20mA, 0/1~5V, 0~10V
  • Power supply: 10/11~30V, 6~24V
  • Ingress Protection: IP68
  • OEM: Available
RangeOverloadPrecisionStabilityWorking TemperatureInsulationElectric Strength
0~0.5...50m1.5 times±0.25~±1.0%F.S0.25/0.5%F.S/Y-20~80℃>100MΩ@50V500V@60second
Two wireThree wireThree wireThree wire
Output Signal4~20mA0~5Vdc1~5Vdc0~10Vdc
Power Supply10~30Vdc6~24Vdc/ac6~24Vdc/ac11~30Vdc/ac
Load Resistance(U-10)/0.02(Ω)>100kΩ>100kΩ>100kΩ


High-corrosiveness resistant liquid level measurements | Corrosive mediums | Chemistry experiments | High-temperature Site| Flammable mediums | Explosion-proof site


The probe measures liquid levels, basing on a simple relationship between the height of the liquid column and the resulting hydrostatic pressure. The pressure measurement is carried out on the level of separating diaphragm of the immersed probe and is related to atmospheric pressure through a capillary in the cable.

The active sensing element is a piezoresistant silicon sensor separated from the medium by an isolating diaphragm. The electronic amplifier, which words in combination with the sensor, and is meat to standardize the signal, is additionally equipped with an overvoltage protection circuit, which protects the probe from damage caused by induced interference from atmospheric discharges or from associated heavy current engineering appliance.

ESL0445 High Corrosive Resistant Level Transmitter drawing vo2

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  • General Instruction and Datasheet-ESL044/5 GID-3-EV02