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WARNING

To avoid shock or injury, do not perform the verification tests or calibration procedures 
described in the manual unless you are qualified to do so. 
The information provided in this document is for the use of qualified personnel only. 

 

CAUTION

The 2231-20 contain parts that can be damaged 

 

 

 

 

  by static discharge.

 

   

 

Follow the standard practices for handling static sensitive devices. 

 
 

Precautions and Safety Information 

Use the Meter only as described in the Operator’s Manual. If you do not do so, the protection provided 
by the Meter may be impaired. Read the “Safety Information” page before servicing this product. 
In this manual, a

 WARNING

 identifies conditions and actions that pose hazard (s) to the user; a 

CAUTION

 identifies conditions and actions that may damage the Meter or the test instruments. 

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. 

 

 CAUTION:

 These statements identify conditions or practices that could result in damage to 

the equipment or other property. 

 

 WARNING:

 These statements identify conditions or practices that could result in personal 

injury or loss of life. 

 

 

Specific precautions 

 

Do not operate without covers.

 To avoid personal injury, do not apply any voltage or current to 

the product without covers in place. 

 
Electric overload.

 Never apply a voltage to a connector on the product that is outside the range 

specified for that connector. 

 
Avoid electric shock.

 To avoid injury or loss of life, do not connect or disconnect probes or test 

leads from the meter while they are connected to a voltage source. 
 

Do not operate in wet/damp conditions.

 To avoid electric shock, do not operate this product in 

wet or damp conditions. 

To reduce the risk of injury, user must read and understand operator’s manual. 

Summary of Contents for 2231-20 4-20

Page 1: ...ambient temperature of 23 C 2 C 73 4 F 3 6 F and relative humidity of 80 allow the fork meter to sit at this temperature for a minimum of 30 minutes before proceeding REPAIR SERVICE INSTRUCTIONS Calibration MILWAUKEE ELECTRIC TOOL CORPORATION 13135 WEST LISBON ROAD BROOKFIELD WISCONSIN 53005 2550 USA 58 92 2231d1 12 2012 2231 20 4 20 Milliamp Clamp Meter ...

Page 2: ... 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 CAUTION These statements identify conditions or practices that could result in damage to the equipment or other property WARNING These statements identify conditions or practices that could result in personal injury or loss of life Specific...

Page 3: ...ry compartment cover and then remove the battery compartment cover 2 Remove batteries 14 4 2 Removal of Front panel 1 Loosen six screws 11 fixing the Front panel 2 Remove the battery harness 7 from PCB 4 3 Removal of PCB 1 Loosen one screw 6 fixing the PCB 2 Remove the PCB assembly 5 from Front panel 1 3 Remove the sensor module 16 from PCB 5 Adjustment Procedure Caution For your safety do not ope...

Page 4: ... Fig 1 Construction Drawing ...

Page 5: ...adjustment mode Measured value is shown in the main display adjustment point is displayed in the sub display 2 Connect the coil unit and current generator 3 Clamp the conductor of the coil unit 4 Ensure that the sub display shows 0 00mA If the sub display does not show 0 00mA press the data hold switch then the sub display will show 0 00mA 5 Generate the current as same as the adjustment point 6 A...

Page 6: ...or module Lack of the segment or abnormal lighting Defect of circuit components Replace the PCB LCD backlight or LED light is not lit Defect of circuit components Replace the PCB 7 List of Spare parts No Spare parts No Parts Name Qty Remark 18 9000018895 Lamp Button 2231 20 UL 1 17 9000019044 Lamp Button Bracket 2231 20 1 2 9000018894 Control Button 2231 20 UL 1 1 9000018890 Enclosure Front Case 2...

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