Agilent Technologies U2802A Manuale Utente Scaricare il pdf (Pagina 61)

U2741A

[1]

Frequency measurement can only be done in auto range mode. Speciﬁcations are for 30 minutes warm-up time, using one second aperture. Measuring

method is using reciprocal counting technique with AC coupled input at AC voltage function. Gate time of 0.1 second or 1 second.

[2]

Only applicable for square wave measurement.

Frequency speciﬁcations

[1]

Frequency accuracy

Function Range

Accuracy

(% of reading + % of

range)

Minimum input

frequency

Temperature

coefﬁcient (% of range)

Frequency 20 Hz to 300 kHz 0.0200 + 0.003 1 Hz 0.005

Frequency Sensitivity for AC Voltage

Function Range

Minimum sensitivity (RMS sine wave)

Frequency (Hz)

20 ~ 100k 100k ~ 300k

AC voltage

100 mV

[2]

20 mV 20 mV

1 V 100 mV 120 mV

10 V 1 V 1.2 V

100 V 10 V 20 V

250 V 100 V 120 V

Temperature speciﬁcations

Temperature accuracy

Function Thermistor type Range Accuracy Temperature coefﬁcient

Temperature 5 kΩ thermistor

–80.0 °C to 150 °C

Probe accuracy + 0.2 °C 0.002 °C

–112 °F to 302 °F

NOTE To ensure better measurement results and to guard against the change of environment or setup, always

enable the Null offset.

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Agilent Technologies U2802A Manuale Utente Pagina 61