XZTY3460A HV Insulation Resistance Test Machine
1. Product Introduction
XZTY3460A Insulation Resistance Tester, also known as digital megohmmeter, is a high-performance digital instrument dedicated to insulation resistance detection. It is widely applied in power supply, telecommunication, computer room, oil field, electromechanical installation and maintenance industries.
Core Functional Advantages
Backlit large LCD screen for simultaneous display of insulation resistance, test duration and output voltage
Built-in multi-layer safety protection: testing function locked automatically when loop voltage exceeds 36V to avoid equipment damage and electric shock risks
Automatic convenient functions: data hold, automatic discharge after test, 15-minute auto power-off, 30-second auto backlight shutoff
5 adjustable test voltage gears: 50V / 250V / 500V / 1000V / 2500V
Dual measurement function: support AC & DC voltage detection within 0~750V
Premium hardware performance: max output voltage 2500V, measuring range 0.1MΩ~200GΩ, maximum short-circuit current 2mA, maximum capacitive load 1μF
Industrial rugged structure: shockproof, dustproof and moisture-proof design, strong anti-interference capability, compact portable size, stable and accurate measurement results
Applicable Testing Scenarios
It can measure insulation resistance of various insulating materials, transformers, motors, power cables and high/low voltage electrical equipment. It is an essential testing tool for power operation inspection, computer room maintenance, oil field equipment overhaul and electromechanical engineering installation.
2. Product Model Specification
This manual covers model XZTY3460:
Rated test voltage: 2500V
Insulation resistance measuring range: 0.1MΩ~200GΩ
AC/DC voltage measuring range: 0~750V
3. Measuring Range & Accuracy Standard
3.1 Temperature & Humidity Requirements for Guaranteed Measurement Accuracy
Measurement error will increase if ambient conditions exceed the specified range:
1MΩ~100MΩ: Humidity < 85% RH, Temperature 23℃±5℃
101MΩ~20GΩ: Humidity < 75% RH
21GΩ~400GΩ: Humidity < 65% RH
3.2 Insulation Resistance Range, Accuracy & Resolution
| Output Voltage | Measuring Range | Accuracy | Resolution |
|---|---|---|---|
| 50V | 0.10MΩ ~ 5MΩ | ±3%rdg ±5dgt | 0.01MΩ |
| 50V | 1MΩ ~ 1GΩ | ±5%rdg ±5dgt | 0.1MΩ |
| 50V | 1GΩ ~ 4GΩ | ±10%rdg ±5dgt | 0.1GΩ |
| 250V | 0.50MΩ ~ 1MΩ | ±3%rdg ±5dgt | 0.01MΩ |
| 250V | 1MΩ ~ 1GΩ | ±5%rdg ±5dgt | 0.1MΩ |
| 250V | 1GΩ ~ 20GΩ | ±10%rdg ±5dgt | 0.1GΩ |
| 500V | 1MΩ ~ 1GΩ | ±5%rdg ±5dgt | 0.1MΩ |
| 500V | 1GΩ ~ 40GΩ | ±10%rdg ±5dgt | 0.1GΩ |
| 1000V | 2MΩ ~ 1GΩ | ±5%rdg ±5dgt | 0.1MΩ |
| 1000V | 1GΩ ~ 80GΩ | ±10%rdg ±5dgt | 0.1GΩ |
| 2500V | 10MΩ ~ 1GΩ | ±5%rdg ±5dgt | 0.1MΩ |
| 2500V | 1GΩ ~ 100GΩ | ±10%rdg ±10dgt | 0.1GΩ |
| 2500V | 100GΩ ~ 200GΩ | ±10%rdg ±10dgt | 1GΩ |
3.3 AC & DC Voltage Measurement Parameters
Measuring range: 0.0V ~ 750V AC/DC
Accuracy: ±5%rdg ±5dgt
Resolution: 0.1V
3.4 Common Electrical Unit Conversion Reference
1 TΩ (Teraohm) = 1000GΩ = 10¹²Ω 1 GΩ (Gigaohm) = 1000MΩ = 10⁹Ω 1 MΩ (Megaohm) = 1000KΩ = 10⁶Ω