Operation - Extech Instruments 382252 Manual

Operation

0 Adjustment
1. Connect the test leads to the meter as follows:
a. Green lead to the 'E' terminal
b. Yellow lead to the 'P' terminal
c. Red lead to the 'C' terminal
Set the function selector switch to the desired measurement range.
2.
Short the 3 test leads together.
3.
Press the TEST key.
4.
Use the 0 Adjust knob to adjust the displayed reading to 0Ω.
5.
Press to TEST key again to end the 0 adjustment process.
6.
Test Connection Diagram
1. 382252 Meter
2. Green Test Lead
3. Yellow Test Lead
4. Red Test Lead
5. Existing Ground
6. P1 Auxiliary Earth Bar
7. C1 Auxiliary Earth Bar
Test Preparation and Setup
1. Connect the test leads to the meter (1) as follows:
•
Green lead (2) to the 'E' terminal
•
Yellow lead (3) to the 'P' terminal
•
Red lead (4) to the 'C' terminal
2. Drive the Auxiliary Earth Bars P1 (6) & C1 (7) into the ground. Align the bars
equidistant to the existing Earth ground connection and in a straight line as shown in
the diagram above. If the auxiliary bars are placed in close proximity to the ground
stake, measurement inaccuracies will result.
3. Connect the clamp ends of the test leads to the Earth bars and existing ground
connection as shown above:
•
Green lead (2) to the existing ground (5)
•
Yellow lead (3) to Earth Bar P1 (6)
•
Red lead (4) to the Earth Bar C1 (7)
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Model 382252
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Ver. 1.1 08/09