HGTD203typeThe volume resistivity tester is designed and developed by our company to measure the volume resistivity of liquid media such as insulating oil and fire-resistant oil. This productFully absorb the advantages of our company and similar products both domestically and internationally,And adopted the unique features of our companypatent technologyThe circuit and program design have adopted advanced and reliable design methods and principles widely used internationally.

Main technical parameters

Applicable standards:DL 421-91

MeasurementUsing highpressdirect-currentPower Supply:DC500V±0.5%

Measurement range:2.0×10⁵～1.0×10¹⁴ Ω.m

Resolution:0.001x10⁵Ω.m

Repeatability:≤15%

Reproducibility:≤25%

Temperature control range:0℃～100℃

Temperature control accuracy:±0.3℃

Measurement mode: Standard mode measurement Custom mode determination

Number of test cups:3 cups

Working environment temperature:5℃～40℃

Working environmentHumidity:≤75%

Single color LCD display（LCD）：320x240

Power supplyVoltage:AC220V±10%

Frequency:50HZ±5%

Power:300VA

External dimensions（LxWxH）:400x285x220

Main features

■ Adopting a patented constant temperature device (patent number:ZL.X）， Directly measure the volume resistivity of fire-resistant oil without the need for additional refrigeration devices

Adopting a composite temperature control method combining intelligent fuzzy logic and variable coefficient PID, the temperature control accuracy can reach ± 0.3 ℃

Built in 24 bit ∑ - Δ A/D converter for high-precision measurement of volume resistivity

Fully automatic measurement according to established procedures in both standard and custom modes

■ Historical test data storage and query function

■ Printer: Thermal type, 36 characters, Chinese character output

Reserved RS232 interface, which can transmit test data to the computer through wireless or wired means