I.Introduction
HZJY-2.5KV Insulation resistance tester, also known as megohmmeter, high voltage megohmmeter, high voltage insulation resistance tester , etc., is specially used for insulation test in laboratory or on site . The instrument has the functions of gray and white backlight LCD large screen display, data storage, data query and so on. At the same time, it can automatically calculate the absorption ratio and polarization index, and automatically store the data of 15 seconds, 30 seconds, 1 minute and 10 minutes . High resolution, convenient operation, easy to carry, accurate, reliable, stable performance, strong anti-interference ability. And with shockproof, dustproof, moisture-proof structure, it is a common and indispensable instrument in the industrial enterprise departments of telecommunications, electric power, meteorology, computer room, oil field, electromechanical installation and maintenance, and industrial enterprises that use electric power as industrial power or energy. It is suitable for measuring the resistance value of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment. The digital insulation resistance meter is composed of medium and large-scale integrated circuits , including a high-precision micro-current measurement system, a digital boost system, and an automatic discharge circuit. Only need to use a high voltage line and a signal line to connect the measured object to measure. The measurement is carried out automatically, the result is displayed on the large screen, and the result is stored. The rated output test voltage range is 100V ~ 2500 V , and the insulation resistance measurement range is 0.01MΩ ~ 2.50TΩ. The DC voltage measurement range is 0 V to 1000V DC, and the AC voltage measurement range is 0 V to 750V AC.
II. Technical Specifications
1. Insulation resistance measurement range and accuracy
The output voltage | Measuring range | Precision |
100V (20%) DC | 0.01MΩ ~ 2.50GΩ _ | ±3%rdg±5dgt |
1.00GΩ ~ 100GΩ _ | ±15%rdg±5dgt | |
250V (15%) DC | 0.01MΩ ~ 2.50GΩ _ | ±3%rdg±5dgt |
2.50GΩ ~ 250GΩ _ | ±15%rdg±5dgt | |
500V (10%) DC | 0.01MΩ ~ 5.00GΩ _ | ±3%rdg±5dgt |
5.00GΩ ~ 500GΩ _ | ±15%rdg±5dgt | |
1000V (10%) DC | 0.01MΩ ~ 10.00GΩ _ | ±3%rdg±5dgt |
10.00GΩ ~ 1.00TΩ _ | ±15%rdg±5dgt | |
2500V (10%) DC | 0.01MΩ ~ 25.0GΩ _ | ±3%rdg±5dgt |
25.0GΩ ~ 2.50TΩ _ | ±15%rdg±5dgt |
2．AC and DC voltage range and accuracy
Measuring voltage | Measuring range | Precision |
AC voltage | 0.01V~750V | ±2%rdg±3dgt |
DC voltage | 0.01V~1000V | ±2%rdg±3dgt |
3. General Specifications
Function | Insulation resistance, polarization index, absorption ratio, AC and DC voltage test; automatic discharge function; ambient temperature test; clock function |
power supply | DC 14.8V 2200mAh rechargeable lithium battery , the battery is fully charged at about 16.8V |
Test voltage | Setting range: 100V, 250V, 500V, 1000V, 2500V |
short circuit current | ≥5 mA ( selection of ≥10 mA, ≥3.5 mA, ≥1.5 mA) |
Wiring method | L terminal: "L" is called the high voltage output terminal, called the line terminal, leading to one end of the measured object |
G terminal: "G" is called the shielding terminal, which is used to measure the insulation resistance of insulating materials or cables by the three-electrode method, and it is connected to the electrode protection ring terminal | |
E terminal: "E" is called the ground terminal, which is connected to the ground and zero terminals of the measured object. Such as motor housing metal, transformer core, cable shielding | |
V terminal: AC and DC voltage measurement terminal (AC and DC automatic identification) | |
resolution | Insulation resistance: 0.01MΩ |
AC voltage: 0.01V | |
DC voltage: 0.01V | |
Measure time | 1 minute ~ 30 minutes (related to the measurement method, can be set) |
backlight | Controllable white screen backlight, suitable for use in dark places |
Shift gears | Fully automatic shift |
LCD | 4-digit LCD display, white screen backlight |
LCD size | 128mm×75mm |
LCD display field | 124mm×67mm |
Measurement indication | LED flashing indication during measurement, progress bar graph indication |
charging indication | The indicator light on the charger is red when charging, and green when fully charged |
Size | Meter size: length, width and height 258mm×21 5 mm×83mm |
standard test line | 1 red high voltage test rod, 1 green and 1 black test line |
Battery voltage | Display the remaining battery power in real time, please charge it in time when the battery is low During low battery, the battery display symbol flashes and gives an alarm, and the meter cannot output voltage for testing |
Communication Interface | With a USB interface, the stored data can be uploaded to the computer, saved and printed |
Communication line | 1 USB communication line, 1.5m long |
Working current | Standby: 25mA Max (backlight off); Backlight: 25mA Max (backlight power consumption alone); Measuring: 450mA Max (backlight off) |
Quality | Meter: 1.85 kg (including battery) |
Total mass: 3.50kg (including packaging) | |
Toolkit | Yellow and black two-color tool bag, easy to carry, good visual effect |
Working temperature and humidity | -10℃～40℃; below 80%rh |
storage temperature and humidity | -20℃～60℃; below 70%rh |
Withstand voltage | AC10.0kV 50Hz between the test line and the case for 1min |
Insulation resistance | >500MΩ between test line and case |
Electromagnetic properties | IEC61326(EMC) |
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