Omega Engineering 450 Series User Manual page 25

Calibration- Thermistor Type
Equipment List
4 ½ digit voltmeter
Precision decade box:
Resolution, 0.01 ohm ; accuracy 0.02%
Ice Bath, 0.00 C
Electro Scientific Industries DB-62 or
equivalent
a. Turn the indicator ON by pressing the C key.
b. Remove the bottom case of the indicator.
c. Connect a precision resistance box to the
terminals on the phone input jack; set the
resistance box to 7,280 ohms.
d. Connect the DVM LO lead to "GND", on the
indicator printed circuit board.
e. Using HI lead of DVM, measure voltage
0.05 C
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