Yokogawa µR20000 - Manual (Page 23)

3-10 SM 04P02B01-01E
● Procedures
Warm up the instrument for thirty minutes before performing the test. Set the ranges
on the recorder, and input the values determined for each range. Check whether the
displayed measured values meet the criteria.
DC voltage generator
To the input
terminals
+
–
Variable resistors
The resistance of three
lead wires must be equal.
L
N
Criteria
Range Input Range Allowed by Test Accuracy Specification Remarks
20mV +20 mV ±3 digits ±(0.1% of rdgs + 2digits)
0 mV ±1 digits
−20 mV ±3 digits
60mV +60 mV ±6 digits
0 mV ±1 digits
−60 mV ±6 digits
200mV +200 mV ±3 digits
0 mV ±1 digits
−200 mV ±3 digits
2V +2 V ±3 digits
+1 V ±2 digits
0 V ±1 digits
−1 V ±2 digits
−2 ±3 digits
6V +6 V ±6 digits
0 V ±1 digits
−6 V ±6 digits
20V +20 V ±3 digits
0 V ±1 digits
−20 V ±3 digits
50V +50 V ±5 digits ±(0.1% of rdgs + 3 digits)
0 V ±2 digits
−50 V ±5 digits
Pt100 −200°C: 18.52 Ω ±0.4 °C ±(0.15% of rdgs + 0.3 °C)
0 °C: 100 Ω ±0.2 °C
600 °C: 313.71 Ω ±0.9 °C
TC-T 0 mV ±0.2 °C EXT RJC mode
TC-K 0 mV ±0.3 °C EXT RJC mode
Cu10 −200°C: 1.326 Ω ±1.4 °C ±(0.4% of rdgs + 1.0 °C) Performed when the /N1 option
(GE) 0 °C: 9.036 Ω ±0.8 °C is specified.
300 °C: 20.601 Ω ±1.7 °C
Pt50 −200°C: 8.57 Ω ±0.8 °C ±(0.3% of rdgs + 0.6 °C) Performed when the /N3 option
0 °C: 50 Ω ±0.4 °C is specified.
600 °C: 158.64 Ω ±0.9 °C
3.4 Test Procedures