Fluke 28 II Ex Calibration Information Manual page 19

3
4. Push and hold  while you turn the rotary switch from OFF to J (See
Figure 3, item 2). The Meter shows Y CALin the display.
5. Short across keypad button S11 on the PCB (See Figure 3, item 3). The Meter will
beep.
6. Turn the rotary switch one position counterclockwise to the OFF position.
The password is set to the default value of 1234.
7. Replace the bottom shield and bottom case of the Meter before you do adjustments or
tests.
1
3.5 - 5 V
Figure 3. Reset the Password
2
Digital Multimeter
Calibration Adjustments
grt102.eps
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