BY2552 Digital Insulation Resistance Tester
BY2552 Digital Insulation Resistance Tester
Product Datasheet | Wuhan Huagao Huineng Electric Technology Co., Ltd.
1. Product Overview
The BY2552 Digital Insulation Resistance Tester (also known as a megohmmeter, high-voltage megohmmeter, or HV insulation resistance tester) is designed for insulation testing in laboratories or on-site. It features a large LCD with white backlight, data storage/recall, automatic calculation of absorption ratio (DAR) and polarization index (PI), and automatic recording of data at 15 s, 30 s, 1 min and 10 min intervals.
With high resolution, easy operation, portability, accuracy, reliability and strong anti-interference capability, the tester is widely used in telecommunications, electric power, meteorology, data centers, oil fields, electromechanical installation/maintenance, and industrial enterprises. It is suitable for measuring the insulation resistance of various insulating materials, transformers, motors, cables and electrical equipment.
The instrument consists of medium/large-scale integrated circuits, including a high-precision micro-current measurement system, digital voltage booster and automatic discharge circuit. Only one high-voltage cable and one signal cable are required to connect the object under test; measurement is automatic, the result is shown on the large screen and the data is stored.
2. Key Features
- Five selectable DC test voltages: 250 V / 500 V / 1000 V / 2500 V / 5000 V
- Insulation resistance range: 0.01 MΩ ~ 5.00 TΩ
- AC/DC voltage measurement: AC 0 ~ 750 V, DC 0 ~ 1000 V
- Automatic Polarization Index (PI) and Dielectric Absorption Ratio (DAR) calculation
- Large LCD with white backlight; stores up to 1000 sets of data
- USB interface with PC software for data download, review, saving and printing
- Multiple short-circuit current options available: ≥5 mA / ≥10 mA / ≥3.5 mA / ≥1.5 mA
- Rechargeable lithium battery; rugged portable carrying case
- Shockproof, dustproof and moisture-proof structure
3. Model Selection
| Model | Short-circuit Current |
|---|---|
| BY2552-A | ≥ 5 mA |
| BY2552-B | ≥ 3.5 mA |
| BY2552-C | ≥ 1.5 mA |
| BY2552-D | ≥ 10 mA |
4. Technical Specifications
4.1 Insulation Resistance Range & Accuracy
| Output Voltage | Measurement Range | Accuracy |
|---|---|---|
| 250 V DC (±15%) | 0.01 MΩ ~ 2.50 GΩ | ±3% rdg ±5 dgt |
| 250 V DC (±15%) | 2.50 GΩ ~ 250 GΩ | ±15% rdg ±5 dgt |
| 500 V DC (±10%) | 0.01 MΩ ~ 5.00 GΩ | ±3% rdg ±5 dgt |
| 500 V DC (±10%) | 5.00 GΩ ~ 500 GΩ | ±15% rdg ±5 dgt |
| 1000 V DC (±10%) | 0.01 MΩ ~ 10.00 GΩ | ±3% rdg ±5 dgt |
| 1000 V DC (±10%) | 10.00 GΩ ~ 1.00 TΩ | ±15% rdg ±5 dgt |
| 2500 V DC (±10%) | 0.01 MΩ ~ 25.0 GΩ | ±3% rdg ±5 dgt |
| 2500 V DC (±10%) | 25.0 GΩ ~ 2.50 TΩ | ±15% rdg ±5 dgt |
| 5000 V DC (±10%) | 0.01 MΩ ~ 50.0 GΩ | ±3% rdg ±5 dgt |
| 5000 V DC (±10%) | 50.0 GΩ ~ 5.00 TΩ | ±15% rdg ±5 dgt |
4.2 AC/DC Voltage Measurement
| Measured Voltage | Range | Accuracy |
|---|---|---|
| AC Voltage | 0.01 V ~ 750 V | ±2% rdg ±3 dgt |
| DC Voltage | 0.01 V ~ 1000 V | ±2% rdg ±3 dgt |
4.3 General Specifications
- Functions: Insulation resistance, PI, DAR, AC/DC voltage; auto-discharge; ambient temperature; clock
- Power Supply: DC 14.8 V / 2200 mAh rechargeable Li-ion battery (full charge ≈ 16.8 V)
- Test Voltages: 250 V / 500 V / 1000 V / 2500 V / 5000 V selectable
- Short-circuit Current: 5 mA standard (≥10 mA / ≥3.5 mA / ≥1.5 mA optional)
- Resolution: Insulation resistance / AC voltage / DC voltage: 0.01 (MΩ/V)
- Measurement Time: 1 min ~ 30 min adjustable
- Display: 4-digit LCD, 128 mm × 75 mm, white backlight
- Data Storage: 1000 groups; USB interface + PC software
- Dimensions: Instrument: 258 mm × 215 mm × 83 mm
- Weight: Instrument: 2.19 kg (with battery); total: 3.50 kg (with packaging)
- Operating Conditions: -10 °C ~ 40 °C; ≤ 80% RH
- Storage Conditions: -20 °C ~ 60 °C; ≤ 70% RH
- Withstand Voltage: AC 3700 V rms (between front and rear case)
- EMC: IEC 61326
5. Standard Configuration
- 1 × BY2552 instrument
- 1 × Carrying case / tool bag
- 1 × Red HV test probe with 3 m cable
- 1 × Red HV clip / hook
- 1 × Black test lead with clip (3 m)
- 1 × Green guard test lead with clip (3 m)
- 1 × 16.8 V charger
- 1 × USB communication cable (1.5 m)
- 1 × Silicone protective cover
- 1 × PC data software (electronic version)
- 1 × User manual, warranty card & certificate
For more information or a quotation, please contact Wuhan Huagao Huineng Electric Technology Co., Ltd.
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