Extech 382252 Operating Manual
User's Manual
Earth Ground Resistance Tester Kit
Model 382252
Introduction
Congratulations on your purchase of the Extech 382252 Earth Ground Resistance Tester
Kit. This device can measure Earth Ground Resistance (in 3 ranges), Earth Voltage and
Resistance (up to 200kΩ), and AC and DC voltage. This device was designed to meet
EN61010-1 safety standards. Careful care and use of this meter will provide years of
reliable service.
Safety
Please read the following safety information carefully before attempting to operate the
meter and use the meter only as specified in this manual.
Environmental safety information
• Do not use meter outdoors when precipitation is likely
• Installation Category III
• Pollution degree 2
• Altitude: 2000 meters max.
• Ambient conditions: 32 to 104
• Observe the following international safety warning symbols
Safety Symbols
Caution: Refer to this manual before using this meter
Dangerous Voltages
o
F (0 to 40oC); RH: 80% max
Meter is protected throughout by double or reinforced insulation
Organizations that provide rules and guidelines for proper grounding
• The National Electrical Code (NEC)
• Underwriters Laboratories (UL)
• National Fire Protection Association (NFPA)
• American National Standards Institute (ANSI)
• Occupational Safety Health Administration (OSHA)
• Telecommunications Industry Standard (TIA)
2
Model 382252 Ver. 1.1 08/09
Meter Description
1. Digital Display – See Display Description below
2. HOLD key – Freezes measurement value on
display
3. 0 ADJ control- Adjusts Zero value on display
4. Backlight key – Turns on Backlight
5. TEST key – Enables Earth Resistance and Earth
Voltage Tests
6. Function Selector switch – Selects desired range
and function
Top View
1. VΩ/C Input
2. P Input
3. COM/E Input
1
2
3
4
5
6
Display Description
1. Test status Icon
2. Battery Charge indicator -
3. Voltage Unit indicator
4. Audible Signal Icon
5. Ω/kΩ Units Indicators
6. Measurement Value
7. AC/DC Voltage Indicators
8. Low Battery Icon
9. HOLD Icon
12 3
12
9
8
7
3
4
5
6
3
Model 382252 Ver. 1.1 08/09
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