28 II Ex
Calibration Information
18
Table 7. Calibration Adjustment Steps (cont.)
Function
(Switch Position)
Adjustment Step
Input Value
(Amps)
C-22
6.000 A, 60 Hz
C-23
6.000 A dc
(Amps)
C-24
60.00 mA, 60 Hz
C-25
400.0 mA, 60 Hz
C-26
60.00 mA dc
C-27
400.0 mA dc
(Microamps)
C-28 600.0
μ
A, 60 Hz
C-29 6000
μ
A, 60 Hz
C-30 600.0
μ
A dc
C-31 6000
μ
A dc
Change the Password
1.
Push and hold down
while you turn the rotary switch from
OFF
to
. The
Meter shows
Y
CAL
in the display.
2.
Push
D
two times to show
????
in the display.
3.
Use the eight Meter buttons to type in the current password, but do not push
D
.
4.
Push
C
to show "_ _ _ _" in the display.
5.
Use the eight Meter buttons to type in a new password.
6.
Push
D
to save the new password.
Set the Password to its Default Value
If the password was forgotten, it can be set to its default value (
1234
1.
Turn the rotary switch of the Meter to
OFF
.
2.
Remove the bottom case and bottom shield of the Meter.
3.
Apply a dc voltage between 3.5 V and 5 V at the test points marked “+” and “-” at
the edge of the board. (See Figure 3, item 1).