Fluke 1522 - Manual (Page 47)

each date segment and the ENT button to move to the next date segment on the
right. Press ENT when the date is correctly entered. Press CLR to move to the
next function without changing the date.
7.9.19 MDue
This function shows the date the instrument is due for calibration and allows it
to be set. The meter calibration due date is regularly checked against the pres-
ent date and if the calibration has expired the user is alerted with the message
“Mtr cal expired”. The message disappears only when the instrument is
recalibrated and the meter calibration due date is set to a future date. To set the
meter calibration due date, use the Up and Down buttons to set each date seg-
ment and the ENT button to move to the next date segment to the right. Press
ENT when the date is correctly entered. Press CLR to move to the next func-
tion without changing the date.
7.9.20 CAL1 and CAL2
The CAL1 and CAL2 calibration parameters calibrate the instrument's PRT
range and thermistor range respectively. These parameters directly affect the
accuracy of the instrument and are only to be altered by an authorized, quali-
fied technician as part of a regular instrument calibration operation. If the in-
strument is ever reinitialized, these parameters are reset to 0. Refer to the
calibration procedure in Section 9. Use the Up and Down buttons to set the
value and press the ENT button to store and continue. Press CLR to move to
the next function without changing the date.
1522 Handheld Thermometer Readout
User’s Guide
46