Milwaukee 2231-20 4-20, Инструкции по ремонту, Страница: 3 / 6

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. Construction Drawing
As per Fig. 1 at the next page.
4. Disassembly Procedure
4.1 Removal of Battery compartment cover
(1) Loosen two screws 13 fixing the battery 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 open 2231-20 in adjusting procedure.
And close the battery compartment cover.
5.1 Required equipments & tools
Prepare the following items for adjustment.
(1) DC Current generator (Adjustment point: DC0mA, ±20mA,±100mA)
(2) Coil (1 turn)