brief introduction
The AC and DC withstand voltage/insulation testers use linear amplification technology to generate low distortion sine wave output, making the testing more accurate. The use of a 4.3 inch color LCD display screen and a user-friendly interactive operation mode make it clearer and easier for users to understand. The test results and test conditions are displayed simultaneously, making users feel at ease with the test conclusion. This instrument can be widely used in fields that require safety testing.
Performance characteristics
4.3 inch color liquid display
Linear, low distortion sine wave output
5 sets of program settings and memory functions
Voltage ramp up setting function
Unique arc detection function for more accurate defect identification
Equipped with AC/DC withstand voltage/insulation resistance testing function
Equipped with AC/DC withstand voltage testing function
| Model | 7122D | |
| AC withstand voltage test | output voltage | range：0-5000V,0-12mA，resolution ratio：10V |
| accuracy：±（2% set value+5V） | ||
| output frequency | 50Hz/60Hz | |
| Output waveform | Sine wave chord, distortion<2% | |
| Upper limit setting | range：0.10-12.00mA，resolution ratio：0.01mA | |
| accuracy：±（2% set value+5V） | ||
| Lower limit setting | range：0.00-12.00mA，resolution ratio 0.01mA | |
| accuracy：±（2% set value+5V） | ||
| ARC Detector | 1-9 Level | |
| DC withstand voltage test | Output voltage | range：0-6000V， |
| resolution ratio 10V，accuracy：±（2% set value+5V） | ||
| OUTPUT RIPPLE | <5%（6KV/5mA) | |
| Testing under linear load | ||
| Upper limit setting | range：0.02-5.00mA，resolution ratio 0.01mA accuracy：±（2% set value+5V）） | |
| Lower limit setting | range：0.00-5.00mA，resolution ratio 0.01mA accuracy：±（2% set value+5V） | |
| Automatic discharge | 200mS | |
| control interface | Input: Test, RESET | |
| Output: Test Passed, Test Failed, Test In Progress | ||
| Ramp up setting | 0.1-999.9 seconds | |
| Test time | Range: 0.5-999.9 seconds (0=continuous testing) | |
| Output method of test results | Buzzer, LCD display reading, control interface status output | |
| Memory group | 5 sets of test condition memory, each with 3 test steps to choose from | |
| display | 4.3 inch color LCD display | |
| Insulation resistance test | output voltage | Range: DC100-1000V, resolution 10V, |
| Accuracy: ± (2% set value+5V) | ||
| Resistance range | Range: 1-1000M Ω, (4-digit display, automatic shifting) Accuracy: ± (3% reading value+2 words) Voltage ≥ 500V ± (7% reading value+2 words) Voltage<500V | |
| Upper limit setting | Same resistance range, spacing of 1M Ω | |
| Lower limit setting | Same resistance range, spacing of 1M Ω | |
