Introduction
1-1
1. Introduction
1.1 An Overview of Product
This automatic ground bond tester is designed to test ground resistance automatically for
electrical machinery and electronic devices. For ground resistance, its test range is from
0~140mΩ, under 10A can up to 510 mΩ. The output test current range is 3∼45A can be set
arbitrarily.
1.2 Features
1. Clear Display
This instrument has the clearest design for setting the parameters of current states, time,
readings, memory no., procedures and states. All of them can be read from the display
directly.
2. Memory Backup
This instrument will backup the data after setting parameters save to the memory. The
data remain in the memory even though open the data after power-off. Therefore, if the
data is not necessary to backup, please don’t save to the memory avoid occupying
memory space.
3. High/Low Limit Comparison for Pass/Fail Judgment
The function of high/low limit comparison for Pass/Fail judgment is designed for preventing
the misjudgment due to bad connection or test cable tripped. This function is able to detect
if there is any bad connection or broken line.
4. Software Calibration
Use software to calibrate. It is no need to open cover, key in correct value by using
keyboard on panel completely. The calibration value saves in EEPROM. The calibration
result is correct, stable.
5. Remote Control
This instrument can extend [START] and [STOP] signals to control externally.
6. The Output of Test Result Signal
The test result can output by relay point on method, such as PASS, FAIL and TEST signals
output.
7. Keypad Locked Function
All of keypads are locked except for [STOP] in test state.
8. OFFSET Calibration Function
This instrument is with Offset Get function. This function can read OFFSET of test terminal,
line impedance of ground test under test status and then save in the memory. Automatic
deduction each test makes the test value more correct.
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