Disassembling The Meter - Fluke 27 II Calibration Information Manual

27 II/28 II
Calibration Information
Function
(Switch Position)

(Microamps)

Disassembling the Meter

To disassemble the Meter:
1. Use a Philips screwdriver to remove the six battery-door screws (H1).
2. Lift up the battery door (MP1) at the top end of the Meter and remove it from the
3. Remove three AA batteries.
4. Remove the fuse access door (MP4).
5. Remove the fuse cap (MP5).
6. Use a Philips screwdriver to remove the bottom-case screws (H2) with their 0-rings
7. Separate the bottom case (MP6) from the top case (MP19).
8. Use a Philips screwdriver to remove the bottom-shield screw (H4).
9. Remove the bottom shield (MP9) from the Meter.
10. Use a Philips screwdriver to remove four PCA input screws (H5).
11. Use a Philips screwdriver to remove six PCA screws (H4) from the board.
12. Remove the PCA from the top case.
13. Remove the top shield (MP13) from the top case.
14. Remove the elastomerics (MP10) from the top shield.
15. Unsnap mask (MP15) from the top shield (MP13).
16. Remove the LCD (DS1) from the top shield.
17. Remove the backlight (MP14) from the top shield.
18. Remove the keypad (MP18) from the top case.
19. Remove the RSOB spacer (MP16) from the top case.
20. Remove the E-clip holding the spring detent (MP17) from the top case.
21. Remove the sprint detent from the top case.
22. Remove the knob (MP20) from the top case.
22
Table 6. Fluke 28 II Calibration Adjustment Steps (cont.)
Adjustment Step
C-28
C-29
C-30
C-31
case back.
(H3).
Input Value
600.0 μA, 60 Hz
6000 μA, 60 Hz
600.0 μA dc
6000 μA dc