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| Nom De La Marque: | Shengtai Instrument |
| Numéro De Modèle: | SH124 |
| MOQ: | 1 |
| Conditions De Paiement: | T/T |
| Capacité D'offre: | 100000sets/an |
SH124 Automatic Volume Resistivity Tester
The SH124 Automatic Volume Resistivity Tester is developed and manufactured in compliance with China’s electric power industry standard DL/T421-2009 and national standard GB/T5654. It is applied to test the volume resistivity of liquid dielectrics including insulating oil and fuel oil.
This instrument adopts an MCS-51 series single-chip microcomputer as the core control unit, equipped with a color LCD screen and Chinese human-machine interactive interface to guide users through operations. The entire measuring process is fully automatic, featuring automatic electrode cup switching and automatic range shifting. It supports cyclic storage of up to 200 groups of test data and integrates cutting-edge modern technological innovations.
With advanced design, rational mechanical layout, easy operation as well as stable and safe performance, this tester delivers top-tier performance metrics among comparable domestic and international counterparts. It serves as an ideal resistivity testing device for oil condition monitoring, and its test results fully meet the requirements specified in DL421-91 for volume resistivity measurement of insulating oil.
Product Aliases
Automatic Transformer Oil Tan Delta & Volume Resistivity Tester
Automatic Volume Resistivity Tester for Fire-Resistant Oil
Self-Cleaning Automatic Volume Resistivity Tester
Automatic Insulating Oil Volume Resistivity Tester
Technical parameters
Executive standard: DL/T421, GB/T5654
Test range: 2.0 x 105 ~ 1.0 x 1013 Ω m.
Test accuracy: repeatability:
Volume resistivity > 1.0 x 1010 Ω m., the relative error of 25%
Volume resistivity 1.0 x 1010 or less Ω m., the relative error is 15%
Reproducibility:
Volume resistivity > 1.0 x 1010 Ω m., the relative error of 35%
Volume resistivity 1.0 x 1010 or less Ω m., the relative error is 25%
Test voltage: 500 VDC maximum error 0.5 %
Constant temperature time: 0 ~ 59 minutes
Charging time: 0 ~ 99 seconds
Discharge time: 0 ~ 9 minutes
Temperature control range: 15 ~ 100℃, temperature control accuracy ±0.5℃
Electrode cup parameters:
Electrode type: three terminal electrode, internal and external electrode double temperature control
Electrode material: special steel
Insulation material: PTFE
Electrode spacing: 2.0mm
Empty cup capacitance: 30.0pF
Empty glass insulation resistance: > 3.0 x 1012 Ω
Power source: AC 220V± 10%, 50Hz± 5%
Power: 500 w or less
Working environment: temperature 10 ~ 35℃, humidity ≤ 85%
SH124 Automatic volume resistivity tester
| Executive standard | DL/T421, GB/T5654 | |
| Test range | 2.0 x 105 ~ 1.0 x 1013 Ω m. | |
| Test accuracy: repeatability | ||
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Volume resistivity > 1.0 x 1010 Ω m., the relative error of 25% Volume resistivity 1.0 x 1010 or less Ω m., the relative error is 15% |
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| Reproducibility | ||
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Volume resistivity > 1.0 x 1010 Ω m., the relative error of 35% Volume resistivity 1.0 x 1010 or less Ω m., the relative error is 25%
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Test voltage: 500 VDC maximum error 0.5 %
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| Constant temperature time |
0 ~ 59 minutes
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| Charging time | 0 ~ 99 seconds | |
| Discharge time | 0 ~ 9 minutes | |
| Temperature control range | 15 ~ 100℃, temperature control accuracy ±0.5℃ | |
| Electrode type | three terminal electrode, internal and external electrode double temperature control | |
| Electrode material |
special steel
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| Insulation material | PTFE | |
| Electrode spacing | 2.0mm | |
| Empty cup capacitance | 30.0pF | |
| Empty glass insulation resistance | > 3.0 x 1012 Ω | |
| Power source | AC 220V± 10%, 50Hz± 5% | |
| Power | 500 w or less | |
| Working environment | temperature 10 ~ 35℃, humidity ≤ 85% | |
Packing list
| S/N | Name | Quantity | Unit | Remarks |
| 1 | Host | 1 | set | |
| 2 | Electrode cup | 1 | set | |
| 3 | power cord | 1 | piece | |
| 4 | Instructions | 1 | copy | |
| 5 | Packing list | 1 | copy | |
| 6 | Certificate warranty card | 1 | copy |