Amprobe DGC-1000A User manual

DGC-1000A
CLAMP-ON GROUND RESISTANCE TESTER
USERS MANUAL
HOLD
OFF
FUNC REC
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EN 61010-2-032
CAT III 300V, CAT II 600V
Pollution Degree 2
Definition of Symbols:
Caution: Refer to Accompanying Documents
Caution: Risk of Electric Shock
Double Insulation
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Table of Contents
I. WARNING...............................................................................................1
II. FEATURES DESCRIPTION ..................................................................1
III. PANEL DESCRIPTION.........................................................................2
IV. LCD DISPLAY.......................................................................................3
V. OPERATION INSTRUCTION ................................................................4
5-1. Ground Resistance Measurement ..................................................... 4
5-2. High and Low Alarm ( ) ............................................................... 7
5-3. Ground/Leakage Current Measurement ............................................ 9
5-4. Setting the Sampling Interval ........................................................... 10
5-5. Data Logging .................................................................................... 10
5-6. Read the Data Stored in Memory ..................................................... 11
5-7. Clear Data Memory .......................................................................... 11
5-8. Cancel the Auto Power Off ............................................................... 11
VI. PRINCIPLE OF OPERATION ............................................................11
VII. ELECTRICAL SPECIFICATION .......................................................14
VIII. GENERAL SPECIFICATIONS .........................................................15
IX. BATTERY REPLACEMENT...............................................................16
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1
I. WARNING
1. Use of rubber gloves is a good safety practice even if the equipment
is properly operated and grounded.
2. Safety is the responsibility of the operator.
3. Use extreme caution when using the instrument around energized
electrical equipment.
4. Do not attempt to use the ground tester to twist or pry the ground
electrode or ground wire away from the equipment being grounded.
5. All metal objects or wires connected to an electrical system should be
assumed to be lethal until tested. Grounding system is no
exception.
II. FEATURES DESCRIPTION
The clamp-on ground resistance tester enables the users to measure
ground resistance of a ground rod without the use of auxiliary ground
rods. Clamp-on ground resistance tester is used in multi-grounded
systems without disconnecting the ground under test.
REC
FUNC
OFF
HOLD
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2
III. PANEL DESCRIPTION
HOLD
OFF
FUNC REC
1. Jaws Assembly: Enclose electrode or ground rod. No air gap is
allowed between two half jaws.
2. Hold Button: Press this button to freeze the value in LCD
3. Rotary Switch: Turn power on and select the desired function.
4. LCD
5. REC button: When one of the functions is selected by FUNC
button, it is used to increment value. If no function is selected, it is
used to start data logging, or record one data point.
6.
▼
button: To decrement value, press this button
7. Jaws Trigger
8.
▲
button: To increment value, press this button
9. FUNC button: Press this button to select function of HI (hi alarm,)
LO (low alarm), SEC (seconds), or no.(read,).
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