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MILWAUKEE ELECTRIC TOOL CORPORATION – TEST & MEASUREMENT PRODUCT
REPAIR SERVICE INSTRUCTIONS — CALIBRATION
2231-20 4-20 Milliamp Clamp Meter
Perform all calibration at an ambient temperature of 23°C ± 2°C / 73.4°F ± 3.6°F and relative
Environmental
humidity of 80% - allow the fork meter to sit at this temperature for a minimum of 30
Condition
minutes before proceeding.
MILWAUKEE ELECTRIC TOOL CORPORATION
13135 WEST LISBON ROAD ● BROOKFIELD, WISCONSIN 53005-2550 ● USA
REPAIR SERVICE
INSTRUCTIONS
Calibration
58-92-2231d1 12/2012
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Summary of Contents for Milwaukee 2231-20 4-20
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Page 1: Repair Service
MILWAUKEE ELECTRIC TOOL CORPORATION – TEST & MEASUREMENT PRODUCT REPAIR SERVICE INSTRUCTIONS — CALIBRATION 2231-20 4-20 Milliamp Clamp Meter Perform all calibration at an ambient temperature of 23°C ± 2°C / 73.4°F ± 3.6°F and relative Environmental humidity of 80% - allow the fork meter to sit at this temperature for a minimum of 30 Condition minutes before proceeding. - Page 2 SAFETY Review the following safety precautions to avoid injury and prevent damage to this product or products connected to it. To avoid potential hazards, use the product only as specified. WARNING: These statements identify conditions or practices that could result in personal injury or loss of life.
- Page 3 1. Scope This service manual applies to the digital DC MILLIAMP clamp meter 2231-20. 2. Contents This service manual consists of the following items. (1) Construction Drawing (2) Disassembly Procedure (3) Adjustment Procedure (4) Trouble Shooting (5) List of Spare parts 3.
- Page 4 -Fig. 1 Construction Drawing-...
- Page 5 How to adjust 5.2.1 The transition to the adjustment mode (1) Press the power switch while holding down zero adjustment switch and the data hold switch at the same time. (2) Make sure that the LCD is lit all, press and hold the light switch over 1 second.
- Page 6 6. Trouble Shooting Defective Symptom Possible Cause Recommended remedy Shortage of battery capacitance Replace the batteries. Power does not turn on Contact failure at Battery contact Replace the battery contact. Shortage of battery capacitance Replace the batteries. Inaccurate measurement is Defect of adjustment Readjustment Defect of circuit components...