Specifications

A family of frequency counters
to meet your needs
Agilent Technologies 53131A,
53132A and 53181A frequency
counters give you fast, precise
frequency measurements at an
affordable price. These counters
feature an intuitive user interface
and one-button access to frequently
used functions so you can make
accurate measurements quickly
and easily. Real-time digital signal
processing technology is used to
analyze data while simultaneously
taking new readings, speeding mea-
surement throughput.
This series of counters offers built-
in statistics and math functions so
you can scale measurements and
simultaneously measure and track
average, min/max and standard
deviation. Automated limit testing
lets you set upper and lower limits
for any measurement. The analog
display mode lets you see at a
glance whether a measurement is
within pass/fail limits. The counters
flag out-of-limit conditions and can
generate an output signal to trigger
external devices when a limit is
exceeded. For quick access to
frequently used tests, a single
keystroke recalls up to 20 different
stored front-panel set-ups.
Frequency Counters
Abbreviated
technical specifications
53131A 53132A 53181A
More detailed specifications at www.agilent.com/find/frequencycounters
169
225 MHz bandwidth (optional 1.5, 3, 5, or 12.4 GHz)
10- or 12-digit/s resolution
GPIB interface and IntuiLink connectivity software standard
Data transfer rate of up to 200 fully formatted measurements / second
Frequency Counters
53131A, 53132A, and 53181A
Type Two channel, universal
1
Two channel, universal
1
One channel RF
Measurements Frequency, frequency ratio, time interval, period, Frequency, frequency ratio
rise/fall time, positive/negative pulse width, duty cycle, (with optional second
phase, totalize, peak voltage, time interval average, channel 2), period,
time interval delay peak voltage
Analysis Automatic limit testing, math (scale and offset), statistics (minimum, maximum,
mean, standard deviation)
Frequency range DC to 225 MHz DC to 225 MHz DC to 225 MHz
(optional channel) (3, 5 or 12.4 GHz) (3, 5 or 12.4 GHz) (1.5, 3, 5 or 12.4 GHz)
Resolution 10 digits/s, 500 ps 12 digits/s, 150 ps 10 digits/s, N/A
(frequency, time interval)
Measurement speed Up to 200 meas/s over GPIB Up to 200 meas/s over GPIB Up to 200 meas/s over GPIB
Voltage range
& sensitivity (Sinusoid)
DC to 100 MHz 20 mVrms to ± 5 Vac +DC 20 mVrms to ± 5 Vac +DC 20 mVrms to ± 5 Vac +DC
100 to 200 MHz 30 mVrms to ± 5 Vac +DC 30 mVrms to ± 5 Vac +DC 30 mVrms to ± 5 Vac +DC
200 to 225 MHz 40 mVrms to ± 5 Vac +DC 40 mVrms to ± 5 Vac +DC 40 mVrms to ± 5 Vac +DC
With Optional Channel 75 mVrms to ± 5 Vac +DC 75 mVrms to ± 5 Vac +DC 75 mVrms to ± 5 Vac +DC
Input Conditioning (Independently selectable (Independently selectable (Independently selectable
on CH 1 & 2) on CH 1 & 2) on CH 1)
Impedance coupling 1 MΩ or 50 Ω, AC or DC 1 MΩ or 50 Ω, AC or DC 1 MΩ or 50 Ω, AC or DC
Low pass filter 100 kHz or none 100 kHz or none 100 kHz or none
Attenuation x1 or x10 x1 or x10 x1 or x10
External timebase 1, 5, 10 MHz 10 MHz 1, 5, 10 MHz
reference Input
Trigger CH 1 & CH 2 CH 1 & CH 2 CH 1
Trigger on rising/falling edge; set level as a percent of signal level or voltage;
Sensitivity can be set as LOW, MED, HIGH
Gating and arming Auto, manual (set gate time or number of digits of resolution);
external, delay (expanded on 53132A)
Interfaces GPIB (IEEE 488.1 and 488.2) with SCPI-compatible language; talk only RS-232
Power AC line selection is automatic
100 to 120 VAC ± 10% at 50, 60, or 400 Hz ± 10%
220 to 240 VAC ± 10% at 50, 60 Hz ± 10%
Net weight/size 3 kg (6.5 lbs.) 88.5mm H x 212.6mm W x 348.3mm D (3.54 in x 8.50 in x 13.932 in)
1
Channel 2 can only be used to make frequency, period, ratio, and voltage measurements - measurements on
channel 1 and channel 2 are made sequentially.
53131A
53181A
53132A