1523, 1524 Reference Thermometer
Manual Calibration Process
82
Resistance
Range
Reference
(Nominal) (Ω) Soak (Sec) Samples
Spec
(±Ω)
Std Dev
Spec (±Ω)
HI_OHMS 40k 20 40 12.0 3.0
100k 20 40 30.0 7.5
300k 20 40 90.0 22.5
500k 20 40 150.0 37.5
RJ_OHMS 10k 20 40 5.0 1.25
Table 29 1523/24 Accuracy Test Settings and Specifications – Voltage
Reference
(Nominal) (mV)
Soak
(Sec) Samples
Spec
(±mV)
StdDev
Spec
(±mV)
-10 20 40 0.0055 0.00138
0 20 40 0.005 0.00125
25 20 40 0.0063 0.00156
75 20 40 0.0088 0.00219
7.9.1 Procedure
7.9.1.1 Visual Inspection
Perform a visual inspection of the UUT for signs of physical damage. If a problem is
found, correct it before proceeding with the test., Contact an Authorized Service Cen-
ter for repair or recalibration before proceeding.
7.9.1.2 1523/24 Calibration Parameters (As Found)
NOTE: If not taking As Found data, skip to the 1523/24 alignment section.
When the calibration process must collect As Found data, the following UUT congu-
ration and control settings must remain at their current values until all As Found data
has been collected. See table below.
Table 30 As Found Readout/Calibration Parameter Settings
Parameter Description
# of Cal Ref Points Each Cal Range has 1 to 4 Ref Cal Points
Cal Ref Points Reference values set to each cal point
Cal Adj values Offsets used at each Cal Ref point
1. Using a terminal program set the terminal program communication settings to:
Baud 9600
Parity None
Flow Control None
Stop Bits 1
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