HY9140 is a new generation of AC and DC grounding impedance tester launched by Changzhou Haoyi Technology Co., Ltd. 4.3-inch TFT-LCD display, small size and light weight. Current test capability of up to 40A, AC and DC grounding dual-use constant current output, four-end method test, accurate and efficient. The open circuit voltage can be adjusted, which can ensure the safety of the tester and the equipment to be tested at the same time. Rich communication interfaces provide optimal test solutions for automated production and production line testing applications.
Meet the requirements of general safety standards such as CCC, IEC, EN, VDE, BS, UL, JIS, etc
4.3-inch TFT LCD display, simple panel operation, clear test results and parameters at a glance
The maximum testing current can reach 40A, suitable for most application testing,
Adopting four wire measurement, eliminating loop resistance and improving testing accuracy through two additional measurement lines.
Pre set upper and lower limits, intelligent judgment, sound and light alarm.
Internally, it can support storing 100 test files, with each file capable of storing 100 test steps.
Easily import/export test files and data via USB.
Rich interfaces, supporting SCP and MODBUS protocols, making it easy to build automated testing systems,
Automated testing system
household appliances
audio-visual equipment
Transformers and motors
electrical equipment
heating appliance
Lighting industry
new energy vehicle
Electronic components
medical equipment


model | HY9140 | |
Grounding impedance test | ||
Output voltage (open circuit voltage) | scope | 3.00 – 8.00 VAC/DC |
resolution | 0.01VAC/DC | |
precision | ± (3% x set value+3 words) | |
output frequency | 50/60Hz, Or users can choose DC mode | |
output current | scope | 0-150mΩ :30.01-40.00A |
0-200mΩ :10.01-30.00A | ||
0-600mΩ :1.00-10.01A | ||
resolution | 0.1A | |
precision | ± (3% x set value+3 words) | |
Maximum Load | scope | 1.00-10.00A :0-600mΩ |
10.01-30.00A :0-200mΩ | ||
30.01-40.00A :0-150mΩ | ||
resolution | 1mΩ | |
precision | ± (2% x set value+2 words) | |
upper limit Impedance setting | scope | 0-150mΩ :30.01-40.00A |
0-200mΩ :10.01-30.00A | ||
0-600mΩ :1.00-10.01A | ||
resolution | 1mΩ | |
precision | ± (2% x set value+2 words) | |
upper limit Voltage setting | scope | 0.00-6.00V |
resolution | 0.01V | |
precision | ± (2% x set value+2 words) | |
Test time | scope | 0 ( 0.5 - 999.9)s, 0 is infinitely long |
resolution | 0.1s | |
precision | ± 0.1% x set value | |
Impedance compensation | scope | 0-100mΩ |
resolution | 1mΩ | |
precision | ± (2% x set value+2 words) | |
voltage compensation
| scope | 0-4V |
resolution | 0.01V | |
precision | ± (2% x set value+2 words) | |
current measurement | scope | 0.00-40.00A AC/DC |
resolution | 0.01 AC/DC | |
precision | ± (2% x reading value+2 words) | |
voltage measurement | scope | 0-8.00V AC/DC |
resolution | 0.01 AC/DC | |
precision | ± (2% x reading value+2 words) | |
impedance measurement | scope | 0-600mΩ :1.00-5.99A |
resolution | 1mΩ | |
precision | ± (3% x set value+3 words) | |
scope | 0-600mΩ :5.99-40A | |
resolution | 1mΩ | |
precision | ± (2% x set value+2 words) | |
General Specifications | ||
document | Supports storing 100 test files, each file can store 100 test steps | |
communication interface | RS232C, RS485 (optional), LAN,USB Host,HANDLER | |
Dimensions (W * H * D) | 213mm *88mm *360mm | |
Net weight (kg) | 3.5Kg | |
power input | ||
power supply voltage | ±10% (100 - 120VAC / 200 - 240VAC) | |
power frequency | 50/60Hz ± 5% | |
| apparent power | 950VA | |
| Ordering Information | ||
| Standard Accessories | HY1137: Grounding impedance output line HY1138: Grounding impedance return line HY106: RS232 communication cable | |