1523, 1524 Reference Thermometer
Manual Calibration Process
88
Record the data.
Note: Steps 66 through 70 apply to the 1524 only. Proceed to step 71 if using a 1523.
66. (1524 ONLY) Set Channel T2 of the UUT in the HI_OHMS cal range by
sending the following commands through the serial port:
CAL2:DEV:RANG:SEL HI_OHMS
67. Turn off T1 by sending the following command.
CAL1:DEV:RANGE:SEL NORMAL
Disconnect resistor.
68. Connect a 100K Ohm resistor to the calibration cable connected to the UUT on
Channel T2.
69. Query the reading every 2 seconds for 40 readings using the following
command:
MEAS? 2
Record the data.
70. Turn off Channel T2 by sending the serial command:
CAL2:DEV:RANG:SEL NORMAL
Connect the calibration cable to Channel T1.
7.9.1.3.5 Millivolt Range
71. Set the UUT in the mV cal range by sending the following commands through
the serial port:
CAL1:DEV:RANG:SEL MV
72. Connect the voltage source to the calibration cable as described in the
Preparation & Settings for Reference readout Calibration section.
73. Set the output of the voltage source to -10 mV.
74. Query the reading every 2 seconds for 40 readings using the following
command:
MEAS?
Record the data.
75. Set the output of the voltage source to 0 mV.
76. Query the reading every 2 seconds for 40 readings using the following
command:
MEAS?
Record the data.
77. Set the output of the voltage source to 25 mV.
78. Query the reading every 2 seconds for 40 readings using the following
command:
MEAS?
Record the data.
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