164 U1253B User’s and Service Guide
6 Performance Tests and Calibration
indicator, “CAL”, will appear on the upper left corner of
the secondary display. If the reading is within the
acceptable range, the word “PASS” will be shown
momentarily, and then the instrument will proceed to the
next calibration item. If the reading is out of the
acceptable range, it will remain at the present calibration
item after showing the error code for 3 seconds. In this
case, you need to check whether the correct reference
input has been applied. Refer to Table 6- 5 on page 171
for the meaning of the error codes.
7 Repeat step 4 and step 5 until all calibration items for
that particular function have been completed.
8 Select another function to be calibrated. Repeat step 4 to
step 7.
• For a rotary switch position that hosts more than one
function, for example, , press to go to the
next function.
9 After calibrating all the functions, press and
simultaneously to exit calibration mode.
10 Switch off the instrument and then switch it on again.
The instrument will be back to normal measurement
mode.
Refer to Figure 6- 7 on page 165.
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