TB 9-6625-2315-35
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
calibration of Multimeter, Hewlett-Packard, Model 34401A. The manufacturer's manual
was used as the prime data source in compiling these instructions. The equipment being
calibrated will be referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. None.
b. Time and Technique. The time required for this calibration is approximately 2
hours, using the dc and low frequency technique.
prescribed by TB 750-25.
b. TI uses closed-box electronic adjustments; no hardware adjustments are used.
Report adjustments performed in Section IV using range and parameter failing
performance test; i.e. 10 V dc, 100 ohms, etc.
to this calibration are in table 1.
Test instrument
parameters
Performance specifications
Dc voltage
Range: 100 mV to 1000 V
Accuracy: (% of reading + % of range) 6 digits, 1 hour warm-up
Range
Accuracy
100.0000
mV
0.0050
+
0.0035
1.000000 V
0.0040
+
0.0007
10.00000
V
0.0035
+
0.0005
100.0000
V
0.0045
+
0.0006
1000.000
V
0.0045
+
0.0010
Range: 100 Ω to 100 MΩ
Accuracy: (% of reading + % of range) 6 digits, 1 hour warm-up
Range
Accuracy1
Ω
100.0000
0.010
+
0.004
1.000000 kΩ
0.010
+
0.001
kΩ
10.00000
0.010
+
0.001
kΩ
100.0000
0.010
+
0.001
1.000000 MΩ
0.010
+
0.001
MΩ
10.00000
0.040
+
0.001
MΩ
100.0000
0.800
+
0.010
See footnotes at end of table.
