26X

High-precision piezoresistive level sensor — 26X

Available on request
Delivery across Russia
Order phone: +7(800)777-18-50

Description

The general industrial level sensor series 26X is the perfect solution for those who want to achieve high quality and measurement accuracy at a competitive price.

In high-precision level sensors of the 26X series, temperature dependence and non-linearity are precisely compensated in the microcontroller using a mathematical model. In addition to the RS485 interface, measurement results can also be output via the built-in digital-to-analog converter as a configurable analog signal. Enhanced lightning protection is also available as a option.

Features

RS485 interface possible together with analog interface
Analog interface can be reconfigured or disabled via the RS485 interface
Modbus RTU protocol for measurement configuration and adjustment
Excellent long-term stability
Operation without maintenance for many years

Technical Solutions

Piezo-resistive pressure sensor isolated from the medium
Robust stainless steel housing with high-quality cable gland
High-quality pressure transducer and proven mathematical compensation

Standard Applications

Measurement of hydrostatic pressure
Level measurement: groundwater, surface water bodies
Fill level measurement: water tanks, fuel tanks

Specifications
Pressure
Accuracy at room temperature (20…25 °C)	≤ ± 0.1% FSO	Linearity (best fit straight line), pressure hysteresis, repeatability, zero offset, gain factor
Total error (0…50 °C)	≤ ± 0.25% FSO	Maximum deviation within compensated pressure and temperature range. Experience shows that outside the compensated temperature range, total error within ambient temperature range increases by 0.1% FSO.
Compensated temperature range	0…50°C	Option: Other additional temperature ranges possible within -20…85°C
Long-term stability	≤ ± 0.15% FSO	Per year under standard conditions
Position dependence	≤ ± 1.5 mbar	Calibrated in vertical mounting position with threaded connection facing downwards
Resolution	0.002% FSO	Digital
Signal stability	0.01% FSO	Digital noise-free
Internal measurement frequency	≥ 1800 Hz	For version «3-wire + digital (0…10 V, 0…5 V)» > 6000 Hz
Pressure range margin	± 10%	Outside the pressure range margin, +Inf / -Inf is displayed. In case of device error, NaN is displayed.
Note	For pressure ranges < 1 bar, all data apply to the full scale output (FSO) signal of 1 bar.

Specifications
Overall dimensions drawing
Applications

Specifications
Pressure
Accuracy at room temperature (20…25 °C)	≤ ± 0.1% FSO	Linearity (best fit straight line), pressure hysteresis, repeatability, zero offset, gain factor
Total error (0…50 °C)	≤ ± 0.25% FSO	Maximum deviation within compensated pressure and temperature range. Experience shows that outside the compensated temperature range, total error within ambient temperature range increases by 0.1% FSO.
Compensated temperature range	0…50°C	Option: Other additional temperature ranges possible within -20…85°C
Long-term stability	≤ ± 0.15% FSO	Per year under standard conditions
Position dependence	≤ ± 1.5 mbar	Calibrated in vertical mounting position with threaded connection facing downwards
Resolution	0.002% FSO	Digital
Signal stability	0.01% FSO	Digital noise-free
Internal measurement frequency	≥ 1800 Hz	For version «3-wire + digital (0…10 V, 0…5 V)» > 6000 Hz
Pressure range margin	± 10%	Outside the pressure range margin, +Inf / -Inf is displayed. In case of device error, NaN is displayed.
Note	For pressure ranges < 1 bar, all data apply to the full scale output (FSO) signal of 1 bar.

Temperature
Accuracy	≤ ± 1.5°C	Temperature is measured on the pressure sensor (silicon chip) located behind the metal separating membrane. Values are valid within the compensated temperature range.
Resolution	≤ 0.01°C
Internal measurement frequency	> 10 Hz