Datasheet > U1273A

U1273A

更新时间： 2022-02-26 12:58:50

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U1270 Series Handheld Digital Multimeters

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U1273A 数据手册

16 | Keysight | U1270 Series Handheld Digital Multimeters - Data Sheet

Electrical Speciﬁcations

Frequency speciﬁcations^{1, 2}

Accuracy ± (% of reading +

counts of least signiﬁcant digit)

Range

Resolution

Minimum input frequency

99.999 Hz

999.99 Hz

9.9999 kHz

99.999 kHz

999.99 kHz

> 1 MHz

0.001 Hz

0.01 Hz

0.1 Hz

0.02 + 5

0.005 + 5

0.5 Hz

1 Hz

0.005 + 5

0.01 kHz

0.1 kHz

0.005 + 5

0.005 + 5 @ < 1 MHz

1. Overload protection: 1000 V; input signal is < 20,000,000 V × Hz (product of voltage and frequency).

2. The frequency measurement is susceptible to error when measuring low-voltage, low-frequency signals. Shielding inputs from external noise pickup is criti-

cal for minimizing measurement errors. Turning on the low pass ﬁlter may help you to ﬁlter out the noise and achieve a stable reading.

Duty Cycle³

Mode

Range

99.99%

Accuracy at full scale

0.3 % per kHz + 0.3 %

DC coupling

AC coupling

3. Notes for duty cycle speciﬁcations:

- The accuracy for duty cycle and pulse width measurements is based on a 3 V square wave input to the DC 3 V range. For AC couplings, the duty cycle

range can be measured within the range of 10% to 90% for signal frequencies > 20 Hz.

- The range of the duty cycle is determined by the frequency of the signal: {10 μs × frequency × 100%} to {[1 – (10 μs × frequency)] × 100%}.

- The pulse width (positive or negative) must be > 10 μs. The range of the pulse width is determined by the frequency of the signal.

Pulse Width⁴

Range

Resolution

0.01 ms

0.1 ms

Accuracy at full scale

999.99 ms

2000.0 ms

(duty cycle accuracy/frequency) + 0.01 ms

(duty cycle accuracy/frequency) + 0.1 ms

4. Notes for pulse width speciﬁcations:

- The accuracy for duty cycle and pulse width measurements is based on a 3 V square wave input to the DC 3 V range.

- The pulse width (positive or negative) must be > 10 μs. The range of the pulse width is determined by the frequency of the signal.

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U1273A 替代型号

型号	品牌	替代类型	描述	数据表
U1273AX	KEYSIGHT	完全替代	U1270 Series Handheld Digital Multimeters

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