Yokogawa µR20000 - Manual (Page 38)

SM 04P01B01-01E
4-7
Adjustments
4
4.3 Adjustments to the Dot Model
Adjusting the A/D Converters
● Overview
Enter the value determined for each range, perform measurement, then write the
adjusted values to the A/D converter.
● Instruments Used
Instrument Specifications
DC voltage generator Accuracy: ±0.005% of setting + 1 µV or better
Resistors 10 Ω, 50 Ω, 100 Ω, 150 Ω, 300 Ω, Accuracy: 0.01% or better
● Channel
Enter the Zero value for channel 1 and the Full value for channel 2, and perform the
adjustment.
● Procedure
Connection
UUA
When DC range
DC Voltage
standard
DECADE
RESISTANCE
BOX
Channel 1
H
L
UUA
When RTD or Cu range
− Channel 1 b
DC Voltage
standard
DECADE
RESISTANCE
BOX
Channel 2
H
L
Channel 2
+
− +
B A
b B A
(Zero value) (Zero value)
(Full value) (Full value)
UUA: Unit Under Adjustment
Input Value
Same as the pen model. See page 4-2.