7451A/7461A/7461P Digital Multimeter Operation Manual
8.3.3 Calibration Point
8-5
8.3.3
Calibration Point
1. Perform calibration for each range of each measurement function. For more information on relation-
ships between functions and ranges, refer to Table 5-2.
2. First, calibrate the zero point in each range calibration.
3. In the DC voltage measurement (includes DCV-Bch) and DC current measurement, calibrate the zero
point and full-scale point.
4. In the resistance measurement, calibrate the zero point and full-scale point for 4W
measurement
and calibrate only zero point for 2W
measurement.
5. In the low-power resistance measurement, calibrate the zero point and full-scale point for 4W
mea-
surement and calibrate only zero point for 2W
measurement.
6. In the AC voltage measurement and AC current measurement, calibrate the zero, 1/100 full-scale, 1/
10 full-scale, and full-scale points.
7. In the ACV(AC+DC) and ACI(AC+DC) measurements, no calibration is required because the instru-
ment is calibrated when the calibration is performed in the DC voltage and AC voltage measurements.
8. In the continuity, diode and temperature measurement, no calibration is required because the instru-
ment is calibrated when the calibration is performed in the DC voltage and AC voltage measurements.
9. In the frequency measurement, no calibration is required.
Table 8-2 Calibration Point (7461A/61P) (1 of 2)
Measurement
function
Range
Zero
Calibration point1 Calibration point2 Calibration point3
DCV
100 mV
Short
+100 mV
-
-
1000 mV
Short
+1000 mV
-
-
10 V
Short
+10 V
-
-
100 V
Short
+100 V
-
-
1000 V
Short
+1000 V
-
-
ACV
ACV(AC+DC)
100 mV
Short
1 mV, 1 kHz
10 mV, 1 kHz
100 mV, 1 kHz
1000 mV
Short
10 mV, 1 kHz
100 mV, 1 kHz
1000 mV, 1 kHz
10 V
Short
100 mV, 1 kHz
1000 mV, 1 kHz
10 V, 1 kHz
100 V
Short
1000 mV, 1 kHz
10 V, 1 kHz
100 V, 1 kHz
700 V
Short
7 V, 1 kHz
70 V, 1 kHz
700 V, 1 kHz
DCI
1000
A
Open
+1000
A
-
-
10 mA
Open
+10 mA
-
-
100 mA
Open
+100 mA
-
-
1000 mA
Open
+1000 mA
-
-
3 A
Open
+3 A
-
-
