Fluke 1523 User Manual

1523, 1524 Reference Thermometer
Manual Calibration Process
84
The ADJ values will be in order of the ref points queried in the previous step.
15. Set the UUT in the MV_OHMS cal range by sending the following commands
through the serial port:
CAL1:DEV:RANG:SEL MV_OHMS
16. Query the Ref points by sending the following Command:
CAL1:DEV:RANG:REF?
17. Query the ADJ values for the range by sending the following Command:
CAL1:DEV:RANG:ADJ?
The ADJ values will be in order of the ref points queried in the previous step.
18. Record the as found alignment parameters.
7.9.1.3 1523/24 Accuracy Test (As Found)
19. Connect the calibration cable, described in the Preparation and Settings for
Reference readout Calibration section, to Channel T1 of the UUT. Using a
terminal program set the terminal program communication settings to:
Baud 9600
Parity None
Flow Control None
Stop Bits 1
20. Connect an electrical short (less than 0.00054Ω) to all 4 wires of the calibration
cable connected to the UUT.
21. Set the UUT password enable by sending the following commands through the
serial port:
SYST:PASS:CEN XXXX (XXXX is the current UUT password)
22. Query the password enable to ensure communication is working and that it is
enabled before continuing. Do this by sending the following command:
SYST:PASS:CEN?
The returned value should be a 1. If not recheck the serial cable connection and
the terminal program communication settings listed in step 1.
7.9.1.3.1 L75 Ohms Range
23. Set the UUT in the L75_OHMS cal range by sending the following commands
through the serial port:
CAL1:DEV:RANG:SEL L75_OHMS
24. Query the reading every 2 seconds for 40 readings using the following
command:
MEAS?
Record the data.
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Fluke 1523 Specifications

General

Resolution	0.001°C
Display	LCD
Data Logging	Yes
Input Types	RTD, Thermocouple
Interface	RS-232
Power Supply	AC adapter
Accuracy	±0.005°C