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GZX92E Insulation Resistance Meter Calibration Device
Product Introduction GZX92E Insulation Resistance Meter Calibration Device is developed and produced based on relevant documents such as JJG622-97 Ins
Product details
Product IntroductionProduct Introduction
The GZX92E insulation resistance meter calibration device is developed and produced based on relevant documents such as JJG622-97 Insulation Resistance Meter (Megohmmeter) Calibration Regulations, JJG690-2000 High Insulation Resistance Meter (High Resistance Meter) Calibration Regulations, and JJG982-2003 DC Resistance Box Calibration Regulations.
Product ParametersProduct Parameters
1、 Accuracy level and operating voltage (current)
1. Resistance output section
Adjustable resistor (common resistor) section
2. Fixed resistor section
Check the insulation resistance meter
High insulation resistance measuring instrument
2、 Adjustment range
3、 Voltage measurement section
1. Range of insulation resistance meter: 2kV, 5kV
Range of high insulation resistance measuring instrument: 200V, 1kV
2. Accuracy: ± 1% Reading ± 0.2% Full Scale
3. Display: Four and a half digits, LCD display
4. Power supply: DC 9 V
5. The peak voltage measurement circuit meets the requirements of Figure 3 in the JJG622-97 calibration regulation
4、 Environmental conditions for use
Reference temperature range: 20-25 ℃
● Nominal operating temperature range: 18-28 ℃
Reference relative humidity: 40% to 60%
● Nominal humidity range: 25% to 70%
5、 Resistance variation limit
Under reference conditions, the deterioration caused by a change in a single influencing variable:
★ a is the accuracy level of the high-voltage high resistance box resistor disk.
6、 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.
7、 Insulation strength
The circuit of the resistor output part in the verification device and the reference grounding point for testing should be able to withstand an actual sine wave AC voltage of 11kV with a frequency of 45-65Hz for 1 minute without breakdown or arcing.
8、 Resistance output terminal:The residual resistance is less than 0.1 Ω, and its variation is less than 0.01 Ω.
9、 External dimensions:495mm×240mm×140mm
10、 Weight:5kg
1. Resistance output section
Adjustable resistor (common resistor) section
| Resistance (Ω) | ×10G | ×1G | ×100M | ×10M | ×1M | ×100k | ×10k | ×1k | ×100 |
| accuracy class | 5 | 2 | 1 | 0．2 | 0．2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Rated voltage | 5000V | 5000V | 5000V | 2500V | 1000V | 1mA | 8mA | 20mA | 50mA |
Check the insulation resistance meter
| Resistance value | 100GΩ |
| accuracy class | 5 |
| Rated voltage | 5000V |
| Resistance value | 100GΩ | 400GΩ | 900GΩ |
| accuracy class | 5 | 5 | 5 |
| Rated voltage | 1000V | 1000V | 1000V |
2、 Adjustment range
When used as a standard for checking insulation resistance meters, the adjustment range is between 100 Ω and 200G Ω
When used as a standard for measuring high insulation resistance, the adjustment range is 1k Ω to 1T Ω
When used as a standard for measuring high insulation resistance, the adjustment range is 1k Ω to 1T Ω
3、 Voltage measurement section
1. Range of insulation resistance meter: 2kV, 5kV
Range of high insulation resistance measuring instrument: 200V, 1kV
2. Accuracy: ± 1% Reading ± 0.2% Full Scale
3. Display: Four and a half digits, LCD display
4. Power supply: DC 9 V
5. The peak voltage measurement circuit meets the requirements of Figure 3 in the JJG622-97 calibration regulation
4、 Environmental conditions for use
Reference temperature range: 20-25 ℃
● Nominal operating temperature range: 18-28 ℃
Reference relative humidity: 40% to 60%
● Nominal humidity range: 25% to 70%
5、 Resistance variation limit
Under reference conditions, the deterioration caused by a change in a single influencing variable:
| 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% |
6、 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.
7、 Insulation strength
The circuit of the resistor output part in the verification device and the reference grounding point for testing should be able to withstand an actual sine wave AC voltage of 11kV with a frequency of 45-65Hz for 1 minute without breakdown or arcing.
8、 Resistance output terminal:The residual resistance is less than 0.1 Ω, and its variation is less than 0.01 Ω.
9、 External dimensions:495mm×240mm×140mm
10、 Weight:5kg
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
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