ZC7305C Earth Resistance Tester
ZC7305C Earth Resistance Tester
ZC7305C Earth Resistance Tester
ZC7305C Earth Resistance Tester

ZC7305C Earth Resistance Tester

Performance features: Intelligent microprocessor control Built-in constant current linear amplifier precision output 30A/510mΩ application range Automatic test line impedance compensation, 5 sets of test program memory Keyed software calibration, keyboard security lock Connectable with voltage tester for automatic testing

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Performance Characteristics

  • Intelligent microprocessor control
  • Built-in constant current linear amplifier for precise output
  • 30A/510mΩ Application Range
  • Test line impedance automatic compensation, 5 sets of test program memory
  • Keyed software calibration, keyboard security locks
  • Can be connected to the withstand voltage tester to do automatic test

Technical indicators

model number ZC7305C
Input Power 47-63Hz, 115/230VAC
Output constant current    0-30Aac constant current source, resolution 0.1A/step

Accuracy: Ms (2% setpoint + 0.02A)

Output signal voltage 6Vac MAX (measured at open circuit)
Output Signal Frequency 50Hz/60Hz selectable
Resistance range 0- 120mΩ (>10A) / 1-510mΩ (10A)

Resolution: 1mΩ/step, Accuracy: (2% reading + 1 word)

zero deviation        MAX 100mΩ, Resolution: 1mΩ/step

Accuracy: (2% setpoint + 1 word)

upper limit setting          Range: 0-510mΩ Resolution: 1mΩ/step

Accuracy: (2% setpoint + 1 word)

Testing time Range: 0.5-999.9 seconds (O=continuous test)
control interface      Inputs: Test (TEST), Reset (RESET)

In pressure resistance testing (WITHSTAND PROCESSING)

Output: Test Passed (PASS) Test Failed (FAIL)

Test-in-Progress (TEST-IN-PROCESS)

Test Result Output Method Buzzer, LCD display of readings, control interface status outputs
memory bank 5 sets of test condition memories
monitor (computer) 16x2 LCD display with backlight
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ZC7305C Earth Resistance TesterZC7305C Earth Resistance Tester

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