Agilent Technologies U1251B Betriebsanweisung PDF herunterladen (Seite 10)

U1251B and U1252B Quick Start Guide

Frequency and Frequency Counter

Measurements

WARNING

• Use the frequency counter for low voltage applications.

Never use the frequency counter on AC power line

systems.

• For input more than 30 Vpp, you are required to use

frequency measurement mode available under the

current or voltage measurement instead of frequency

counter.

Frequency Measurement

During AC/DC voltage or AC/DC current

measurements, you can measure the signal

frequency by pressing at any time.

Frequency Counter Measurement

1 Set the rotary switch to .

2 Press to select the frequency

counter (Hz) function. “—1—” on the

secondary display means the input signal

frequency is divided by 1. This

accommodates for higher frequency range

of up to 985 kHz.

3 Connect the red and black test leads to

input terminals V (red) and COM (black)

respectively.

4 Probe the test points and read the display.

5 If the reading is unstable or zero, press

to select division of input signal

frequency by 100. This accommodates a

higher frequency range of up to 20 MHz.

6 The signal is out of range if the reading is

still unstable after step 5.

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Agilent Technologies U1251B Betriebsanweisung Seite 10