Omega Vehicle Security 450 manual Calibration- Platinum RTD

Calibration- Platinum RTD

Equipment List

∙4 ½ digit voltmeter

∙Precision decade box:

∙Resolution, 0.01 ohm ; accuracy ±0.02%

∙Ice Bath, 0.00 °C ± 0.05°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 RTD input jack and set the resistance box to 100.04 ohms.

d.Using HI lead of DVM, measure voltage at the “-1.23V” testpoint: disregarding polarity indication, record the voltage.

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