Fluke 1523 User Manual

91
Calibration of Your Reference Thermometer Readout
Manual Calibration Process
CAL:DEV:RANG:SEL LO_OHMS
CAL:DEV:RANGE:REF1 75.0
CAL:DEV:RANGE:REF2 400.0
CAL:DEV:RANG:SEL MED_OHMS
CAL:DEV:RANGE:REF1 400
CAL:DEV:RANGE:REF2 40000
CAL:DEV:RANG:SEL HI_OHMS
CAL:DEV:RANGE:REF1 40000
CAL:DEV:RANGE:REF2 500000
CAL:DEV:RANG:SEL MV
CAL:DEV:RANGE:REF1 0.0
CAL:DEV:RANGE:REF2 75
4. Set all adjustment parameters to 0.0 for each range by sending the following
commands:
CAL:DEV:RANG:SEL L75_OHMS
CAL:DEV:RANGE:ADJ1 0.0
CAL:DEV:RANGE:ADJ2 0.0
CAL:DEV:RANG:SEL LO_OHMS
CAL:DEV:RANGE:ADJ1 0.0
CAL:DEV:RANGE:ADJ2 0.0
CAL:DEV:RANG:SEL MED_OHMS
CAL:DEV:RANGE:ADJ1 0.0
CAL:DEV:RANGE:ADJ2 0.0
CAL:DEV:RANG:SEL HI_OHMS
CAL:DEV:RANGE:ADJ1 0.0
CAL:DEV:RANGE:ADJ2 0.0
CAL:DEV:RANG:SEL MV
CAL:DEV:RANGE:ADJ1 0.0
CAL:DEV:RANGE:ADJ2 0.0
5. Take alignment data by following (or repeating) the steps in the As Found Data
section. Do not take alignment data for Channel T2.
6. Calculate the average and the standard deviation of the alignment data..
7. Calculate the adjustment values for each range and record the value using the
formula below:
ADJx = average – nominal
X represents which ADJ value for that range, 1 or 2
Average is the average of the 40 measured samples at one reference point.
Nominal is the exact known value of the reference resistor or voltage source.
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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