1523/24 Alignment; Table 31 1523/24 Alignment Settings - Fluke 1523 Technical Manual

79. Set the output of the voltage source to 75 mV.
80. Query the reading every 2 seconds for 40 readings using the following
command:
7.9.1.3.6 Reference Junction Ohms Range
81. Set the UUT in the RJ_OHMS cal range by sending the following commands
through the serial port:
82. Connect a 10K Ohm resistor to the calibration cable connected to the UUT.
NOTE: Only connect pins 1and 4 to the 10K Reference resistor. This is a 2 wire
test.
83. Query the reading every 2 seconds for 40 readings using the following
command:
84. For all As Found data, calculate the average and standard deviation for each
set of data. Compare the standard deviation to the specification. If the UUT
does not meet the standard deviation specification, re-take data at the suspect
range(s). If the data is still exceeds the specification, contact an Authorized
Service Center for assistance. Verify the average of each data set is less than the
Accuracy limit listed in the Accuracy Test Settings and Specification tables.
7.9.2

1523/24 Alignment

Caution: Failure to do this will cause large errors in the measurement readings
and invalidate the calibration.

Table 31 1523/24 Alignment Settings

Setting
NUM
NUM
NUM
NUM
NUM
Ref1, Ref2
Ref1, Ref2
Ref1, Ref2
Calibration of Your Reference Thermometer Readout
Cal Range Value
MV 2
L75_OHMS 2
LO_OHMS 2
MED_OHMS 2
HI_OHMS 2
MV 0, 75
L75_OHMS 0, 75
LO_OHMS 75, 400
Manual Calibration Process
Description
MV Range # of cal points
L75_OHMS Range # of cal points
LO_OHMS Range # of cal points
MED_OHMS Range # of cal points
HI_OHMS Range # of cal points
mV Ref Calibration points
L75_OHMS Ref Calibration points
LO_OHMS Ref Calibration points
89