HP 974A - Resistance Measurement Specs; Continuity Test Specs; Diode Test Specs; Frequency Measurement Specs

Resistance
Range Resolution Accuracy Test Current
Max
Open Circuit
Voltage
500 Ω 10 mΩ± (0.06% + 2)
1
< 800 µA
< 5.5 V
5.0 kΩ 100 mΩ
± (0.06% + 2) 50 kΩ 1Ω < 80 µA
< 2.2 V
500 kΩ 10 Ω < 15 µA
5.0 MΩ 100 Ω ± (0.5% + 1) < 1.5 µA
50 MΩ 1 kΩ ± (1.0% + 2)
< 150 nA
1
After zero adjust of input leads. Zero adjust range up to 0.99 Ω.
Response time: 500 Ω to 500 kΩ — < 2 seconds, 5 MΩ to 50 MΩ — < 10 seconds.
Continuity
Measurement Current: 0.8 mA maximum Open circuit voltage: < 5.5 Vpeak
Displayed resistance: 0 Ω to 499.99 Ω Input protection: 500 Vrms (sinewave)
Alarm: Tone when input < 100 Ω ± 50 Ω Resolution: 10 mΩ (<100 mSec response time)
Diode
Measurement current: +1.0 mA nominal @ 0.6 V Open circuit voltage: < 5.5 Vpeak
Displayed Voltage: 0 V to 4.999 V Input protection: 500 Vrms (sinewave)
Accuracy: ± (1% + 2) Resolution: 100 µV
Frequency (AC Coupled)
Frequency Range Resolution Accuracy Input Voltage (rms)
10 Hz to 99.99 Hz 0.01 Hz
± (0.05% + 1)
0.45 mV to 500 V90 Hz to 999.0 Hz 0.1 Hz
900 Hz to 9.999 Hz 1 Hz
9.00 kHz to 99.99 kHz 10 Hz .7 V to 100 V
90 kHz to 200 kHz 100 Hz 1.5 V to 100 V
Specifications
1-19