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General| Brand | ETCR |
|---|---|
| Model | 3000B |
| Category | Test Equipment |
| Language | English |
Details base and working conditions for tester operation and performance.
Provides overall specifications including function, power supply, and measurement modes.
Details intrinsic errors and performance metrics under base operating conditions.
Describes the Liquid Crystal Display (LCD) screen of the tester.
Overview of buttons, rotary switch, and USB interface.
Identifies E, ES, P(S), and C(H) interfaces for measurement electrodes.
Lists standard test wires, auxiliary grounding rod, and simple test line.
Covers progress, alarm, voltage, interference, battery, and AC symbols.
Details symbols for data hold, storage, access, group numbers, measured data, and units.
Explains the average value rectification method for voltage to ground.
Details the fall-of-potential method for earth resistance measurement.
Explains the calculation of operating error based on intrinsic and variation errors.
Describes the 4-pole Wenner method for soil resistivity measurement.
Instructions for powering the tester on and off.
How to check the battery level and when to replace batteries.
Procedure for measuring commercial AC voltage, not exceeding 600V.
Procedure for measuring earth voltage, not exceeding 600V.
Detailed steps for precise earth resistance using the 4-wire method.
Procedure for 3-wire earth resistance measurement.
Method for simple earth resistance measurement using 2 wires.
Procedure for measuring soil resistivity using the 4-pole Wenner method.
Instructions for turning the LCD backlight on or off.
How to configure alarm thresholds and enable/disable alarms.
Procedure for locking and storing measured data.
Steps for reading, deleting, and managing stored data.
Instructions for uploading stored data to a computer.
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