VIP member
GZX92F Insulation Resistance Meter Calibration Device
Product Introduction: Insulation resistance meter (megohmmeter) is a national mandatory verification measuring instrument, which is divided into direc
Product details
Product IntroductionProduct Introduction
Insulation resistance meter (megohmmeter) is a national mandatory verification measuring instrument, which is divided into direct acting analog indication insulation resistance meter (megohmmeter) and electronic insulation resistance meter according to the DC power supply device. The verification regulation for insulation resistance directly acting on analog indication is JJG622-1997 Verification Regulation for Insulation Resistance Meter (Megohmmeter). The verification regulation for electronic insulation resistance meters is JJG1005-2005 Verification Regulation for Electronic Insulation Resistance Meters. The main standard instruments for the calibration devices specified in the two regulations are high-voltage high resistance boxes and high-voltage voltmeters.
This device includes a high-voltage high resistance box (high resistance output part) and a DC high-voltage digital voltmeter (voltage input part), which can simultaneously meet the requirements of JJG622-1997 and JJG1005-2005. The measurement range of the high-voltage high resistance box is 100 Ω to 1T Ω. The working voltage is 5kV and the accuracy level is 0.1. The device is designed with independent leakage shielding terminals, and there is no obvious instability, short circuit, or open circuit phenomenon during the measurement process. The measurement range of the DC high-voltage digital voltmeter is 0-5kV. The accuracy level is 1.0. Capable of measuring the open circuit voltage, median voltage, drop voltage, and peak voltage of an insulation resistance meter.
This device includes a high-voltage high resistance box (high resistance output part) and a DC high-voltage digital voltmeter (voltage input part), which can simultaneously meet the requirements of JJG622-1997 and JJG1005-2005. The measurement range of the high-voltage high resistance box is 100 Ω to 1T Ω. The working voltage is 5kV and the accuracy level is 0.1. The device is designed with independent leakage shielding terminals, and there is no obvious instability, short circuit, or open circuit phenomenon during the measurement process. The measurement range of the DC high-voltage digital voltmeter is 0-5kV. The accuracy level is 1.0. Capable of measuring the open circuit voltage, median voltage, drop voltage, and peak voltage of an insulation resistance meter.
Product ParametersProduct Parameters
1、 Resistance output (high voltage and high resistance box) section
1. Accuracy level and operating voltage (current) of the resistor output section
2. Adjustment range: 100 Ω~1T Ω, adjusting fineness to 100 Ω
3. Environmental conditions for use
4. Resistance variation limit:
The variation caused by a change in a single influencing variable under reference conditions
☆ a is the accuracy level of the resistor output part of the verification device's resistor disk (the value of a varies for each resistor disk)
5. Insulation resistance:
8. Dimensions: 442mm × 270mm × 145mm
9. Weight:<5kg
2、 Voltage measurement (high-voltage DC digital voltmeter) section
1. Accuracy level and operating voltage (current) of the resistor output section
| Resistance value | 500GΩ | 300GΩ | 100GΩ | ×10GΩ | ×1GΩ | ×100MΩ |
| accuracy class | 2 | 2 | 2 | 2 | 1 | 1 |
| Rated voltage | 5000V | 5000V | 5000V | 5000V | 5000V | 5000V |
| Resistance value | ×10MΩ | ×1MΩ | ×100kΩ | ×10kΩ | ×1kΩ | ×100Ω |
| accuracy class | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Nominal voltage/current | 2500V | 1000V | 1mA | 8mA | 20mA | 50mA |
3. Environmental conditions for use
● Reference temperature range: 20 ℃~25 ℃
●Nominal operating temperature range: 18 ℃~28 ℃
●Reference humidity range: 40% to 60%
●Nominal humidity range: 25% to 70%
●Nominal operating temperature range: 18 ℃~28 ℃
●Reference humidity range: 40% to 60%
●Nominal humidity range: 25% to 70%
4. Resistance variation limit:
The variation caused by a change in a single influencing variable under reference conditions
| Influence quantity | Nominal usage range | Permitted variation |
| Environmental temperature | 18～28℃ | a/2 % |
| Relative humidity | 25%～70% | ≤10GΩ a/2 % ＞10GΩ a% |
| Working voltage | (1-1/5) nominal voltage | ≤10GΩ a/2 % ＞10GΩ a% |
5. Insulation resistance:
●The insulation resistance between the circuit of the resistor output part in the verification device and any other external metal without electrical connection to the circuit shall be measured at a nominal voltage with a resistance value of not less than 1T Ω.
6. Insulation strength:
●The circuit of the resistor output part in the verification device should be able to withstand an actual sine AC voltage of 11kV with a frequency of 45-65Hz for 1 minute between the test reference grounding point, without breakdown or arcing.
7. The residual resistance at the output terminal of the resistance output part in the verification device should be less than 0.1 Ω, and its variation should be less than 0.01 Ω. (The test results should not include the resistance of the connecting wires during testing)8. Dimensions: 442mm × 270mm × 145mm
9. Weight:<5kg
2、 Voltage measurement (high-voltage DC digital voltmeter) section
●Measurement range: 0-5000V
●Accuracy: ± (1% reading ± 0.2% full scale)
●Power supply: DC9V
●Display: Four and a half digits, LCD display test results
●Reading stability: ± 3 words
●The peak voltage measurement circuit meets the requirements of Figure 3 in the JJG622-97 Insulation Resistance Meter Verification Regulations.
●Accuracy: ± (1% reading ± 0.2% full scale)
●Power supply: DC9V
●Display: Four and a half digits, LCD display test results
●Reading stability: ± 3 words
●The peak voltage measurement circuit meets the requirements of Figure 3 in the JJG622-97 Insulation Resistance Meter Verification Regulations.
Note:
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.
2. To learn more about Hertz products, please enter the product center. Service Hotline:
Product featuresProduct Characteristics
●The high-voltage high resistance box consists of eight decimal resistor disks and one fixed resistor
●The switch of the high voltage and high resistance box is a patented rolling high voltage switch, which is a sealed light pressure switch made of special high-strength insulation material
●High insulation resistance, low contact resistance, long service life, and no need for cleaning. The action process of the switch is to first turn on and then turn off, and there will be no open circuit during the measurement process, fully meeting the requirements of Article 15.1.6 of JJG622-97 Insulation Resistance Meter Verification Regulations
●Has relatively complete leakage shielding
●The resistor uses specially designed high stability resistor components with small temperature coefficient, voltage coefficient, and annual variation, ensuring the stability and accuracy of the high-voltage high resistance box
Online inquiry
-
Contacts
-
Company
-
Telephone
-
Email
-
WeChat
-
Verification Code
-
Message Content
-