How To Restore The Default Password - Fluke ProcessMeter 789 Calibration Manual

How to Restore the Default Password

To avoid electrical shock or personal injury, remove the test leads and
any input signal before removing the back case from the UUT.
If the calibration password is forgotten, the default password () can be restored with
these steps:
1. Turn the rotary switch from OFF to B.
2. Remove the back case from the UUT.
3. Remove the shield and leave the PCA in the top case.
4. Apply 6.0 V across the battery pads (XBT1) + and – on the back of the PCA. See
Figure 10.
4. Short across the  keypad on the back of the PCA. See Figure 10. The UUT should
beep (if the beeper is enabled). The default password is now restored.
5. Remove the 6.0 V supply and install the shield and back case on the UUT.
Cal Password
Reset
Warning
Firmware Version = ≥2.0
FRONT FRONT
FRONT FRONT
C C
DS3 DS3 Q32 Q32
Q31 Q31
1 1
R131 R131
R130 R130
R129 R129 1 1
1 1
R127 R127
C111 C111
R126 R126
R122 R122
LS1 LS1
R121 R121
TP45 TP45
TP44 TP44
Q27 Q27
R120 R120
R118 R118
C106 C106
S12 S12
C105 C105
C103 C103
U19 U19
Y1 Y1
R114 R114
U18 U18
1 1
C94 C94
TP42 TP42
TP40 TP40
TP41 TP41
TP39 TP39 C90 C90
TP37 TP37
TP38 TP38
R101 R101 R102 R102
R103 R103
R98 R98
R100 R100
TP35 TP35
TP34 TP34
U15 U15
TP32 TP32
R97 R97
Q24 Q24 Q25 Q25
C70 C70
R95 R95
R92 R92
R93 R93
C68 C68
R89 R89
R88 R88
R86 R86
C65 C65 R85 R85
U13 U13
TP50 TP50
U12 U12
U11 U11 RN9 RN9
C63 C63
RN6 RN6 RN7 RN7
C60 C60
C59 C59
C56 C56
C57 C57
TP25 TP25
R84 R84
R82 R82
TP21 TP21
C55 C55
R80 R80 R83 R83
TP15 TP15 R79 R79 TP20 TP20
TP18 TP18
TP16 TP16
R78 R78
C54 C54
C53 C53
R77 R77
C52 C52 R76 R76
C51 C51
C50 C50
R73 R73
R75 R75
R74 R74
C49 C49
R72 R72
C47 C47
C45 C45
Q19 Q19
C44 C44
Figure 12. Restoring the Default Password
R117 R117
TP43 TP43
C101 C101
C96 C96
L4 L4
U16 U16
CR9 CR9
C93 C93
C89 C89
CR8 CR8
C91 C91
C83 C83 C84 C84
C81 C81
C80 C80
C79 C79
TP36 TP36
U14 U14
C72 C72
C71 C71
L3 L3
Q22 Q22
Q21 Q21
TP30 TP30
CR7 CR7
CR6 CR6
TP28 TP28
TP29 TP29
C58 C58 F3 F3
TP23 TP23
TP27 TP27
TP19 TP19
Q20 Q20
ProcessMeter™
Calibration Adjustment
Battery Pads
ebp10f-1.eps
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