HP 972a, Руководство пользователя

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AC Current
Range Resolution
Accuracy
(40 Hz to 2 kHz)
Input
Resistance
Maximum Input
400
µ
A
100 nA
±
(1.5% + 4)
< 550
Ω
0.5 Arms (fused)
4000
µ
A 1
µ
A
40 mA 10
µ
A
< 8
Ω
400 mA
100
µ
A
10 A 10 mA < 0.05
Ω
15 Arms (fused)
HP 972A average responding
HP 973A rms responding, crest factor <3, specified for 5% to 100% of range
Resistance
Range Resolution Accuracy Test Current
Max Open
Circuit Voltage
400
Ω
100 m
Ω ±
(0.2% + 1)
1
< 0.8 mA < 3.2 V
4.0 k
Ω
1
Ω
±
(0.2% + 1)
< 80
µ
A
< 1.1 V
40 k
Ω
10
Ω
< 10
µ
A
400 k
Ω
100
Ω
< 1.1
µ
A
4.0 M
Ω
1 k
Ω ±
(0.5% + 1)
110 nA
40 M
Ω
10 k
Ω ±
(1.2% + 1)
1
After zero adjust of input leads. Zero adjust range up to 9.9
Ω
.
Continuity
Measurement Current: 0.8 mA maximum Open circuit voltage: < 3.2 Vpeak
Displayed resistance: 0
Ω
to 400
Ω
Input protection: 660 Vrms (sinewave)
Alarm: Tone when input < 20
Ω
Resolution: 100 m
Ω
Diode
Measurement current: +0.5 mA nominal @ 0.6 V Open circuit voltage: < 3.2 Vpeak
Displayed Voltage: 0 V to 2.000 V
Input protection: 660 Vrms (sinewave)
Accuracy:
±
(1% + 2) Resolution: 1 mV
Specifications
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