5967 6039EN 11 08 A_53132A A 53132A

A_53132A A_53132A

User Manual: A_53132A

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Agilent 53131A/132A/181A Counters
High-performance, low-cost counters simplify and
speed systems and bench frequency measurements
Data Sheet
Recommended replacement products:
53200 Series RF & universal frequency counter/timers
(Data sheet publication number: 5990-6283EN)

• 225 MHz bandwidth
(optional 1.5, 3, 5, or 12.4 GHz)
• 10- or 12-digit resolution with
1 s gate time
• GPIB interface and IntuiLink
connectivity software standard
• Data transfer rate of up to 200 fully
formatted measurements/second

A family of universal and
RF counters to meet your needs
Agilent Technologies 53131A/132A/
181A high-performance 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 measurement throughput. The technology, developed for
Agilent’s high-end line of modulation
domain analyzers, allows the counters
to gather more data for each measurement, so you get higher-resolution
measurements in a fraction of the time
it takes other counters.

The 53131A/132A/181A counters offer
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. An 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 frontpanel set-ups.

For computer-controlled systems
applications, each counter includes
a standard GPIB interface with full
SCPI-compatible programmability and
a data transfer rate of up to 200 fully
formatted measurements per second.
The standard RS-232 talk-only interface
provides printer support or data transfer to a computer through a terminalemulation program.

Agilent 53132A universal counter
For applications requiring higher
resolution, the 53132A offers the same
features and functions as the 53131A,
with up to 12 digits/sec frequency/
period resolution and 150 ps time
interval resolution. In addition, the
53132A offers advanced arming modes
for time interval measurements.

Agilent 53131A universal counter
The two-channel 53131A counter offers
10 digits per second of frequency/
period resolution and a bandwidth of
225 MHz. Time interval resolution is
specified at 500 ps. An optional third
channel provides frequency measurements up to 3 GHz, 5 GHz, or 12.4 GHz.
Standard measurements include frequency, period, ratio, time interval,
pulse width, rise/fall time, phase
angle, duty cycle, totalize, and peak
voltage.

Agilent 53181A RF counter
Optimized for RF applications, the
single-channel 10 digit/s 53181A
measures frequency, period and peak
voltage. A digit-blanking function lets
you easily eliminate unnecessary digits
when you want to read measurements
quickly. For higher-frequency measurements, choose an optional second
channel that provides measurements
up to 1.5 GHz, 3 GHz, 5 GHz, or 12.4 GHz.
A self-guided shallow menu makes this
counter exceptionally easy to use.

Agilent IntuiLink provides easy access
to the counter’s data from your PC
The Agilent 53131A/132A/181A
counters, capture precise frequency
and time measurements. IntuiLink
software allows that data to be put
to work easily. You work in a familiar
environment at all times, using PC
applications such as Microsoft Excel®
or Word® to analyze, interpret, display,
print, and document the data you get
from the counter.

Agilent IntuiLink lets you:
• Configure tests, including measurement type, number of readings,
measurement speed, and more.
• Choose display modes from realtime strip chart, histogram, readout,
and table mode.

Optional timebases offer
increased stability
Optional timebases are available
for 53131A/132A/181A counters to
increase measurement accuracy. Option
010 provides a high stability oven
timebase with aging of less than
5 x 10-10 per day.
1-year warranty
Each counter comes with operating,
programming and service manuals,
IntuiLink software, a power cord and
a full 1-year warranty.

• Scale measurements data.
• Copy captured data to other
programs.

It gives you the flexibility to configure
and run tests from your PC making
data gathering more convenient.

Time Base
Internal time base stability (see graph 3 for timebase contribution of measurement error)
Standard
(0° to 50°C)

Medium oven
(Option 001)

High oven
(Option 010)

Ultra high oven
(Option 012 for 53132A only)

Temperature stability (referenced to 25°C)

< 5 x 10-6

< 2 x 10-7

< 2.5 x 10-9

Aging rate
(after 30 days)

< 3 x 10-7

< 4 x 10-8
< 2 x 10-7

< 5 x 10-10
< 1.5 x 10-8

< 1 x 10-10
< 3 x 10-9
< 2 x 10-8

< 2 x 10-7
referenced to 2 h

< 5 x 10-9
referenced to 24 h

Electronic

Per Day:
Per Month:
Per Year:

Turn-on stability vs. time
(in 30 minutes)

Calibration

Manual adjust

Note that power to the time base is maintained when the counter is placed in standby via the front panel switch. The internal fan will continue to operate
when in standby to maintain long-term measurement reliability.

Instrument Inputs

Input specifications

Input characteristics

Channel 1 & 2 (53131A, 53132A)
Channel 1 (53181A)

Frequency range

Channel 1 & 2 (53131A, 53132A)
Channel 1 (53181A)

Impedance

50 Ω

Coupling

Impedance

1 MΩ or 50 Ω

VSWR

< 2.5:1

dc coupled

dc to 225 MHz

1 MΩ
capacitance

30 pF

ac coupled

1 MHz to 225 MHz (50 Ω)
30 Hz to 225 MHz (1 MΩ)

Coupling

ac or dc

FM tolerance

25%

Voltage range and sensitivity (Sinusoid)2
30 mVrms to ±5 V ac + dc

200 MHz
to 225 MHz

40 mVrms to ±5 V ac + dc
(all specified at 75 mVrms
with opt. rear connectors)3

Voltage range and sensitivity
(Single-shot pulse)2
4.5 ns to 10 ns 100 mVpp to 10 Vpp
pulse width
(150 mVpp with optional
rear connectors)3
>10 ns
pulse width

50 mVpp to 10 Vpp
(100 mVpp with optional
rear connectors)3

External arm input specifications5

Low-pass filter 100 kHz, switchable
-20 dB at > 1 MHz
Input
sensitivity

dc to 100 MHz 20 mVrms to ±5 V ac + dc
100 MHz
to 200 MHz

Characteristics
1

Selectable between Low,
Medium, or High (default).
Low is approximately 2x
High Sensitivity.

Range

± 5.125 V

Accuracy

± (15 mV + 1% of trigger level)

Resolution

5 mV

Damage level
50 Ω

5 Vrms

0 to 3.5 kHz,
1 MΩ

350 Vdc + ac pk

3.5 kHz to
350 Vdc + ac pk linearly
100 kHz, 1 MΩ derated to 5 Vrms
>100 kHz,
1 MΩ

TTL compatible
Timing Restrictions
Pulse width

> 50 ns

Transition time

< 250 ns

Trigger slope Positive or negative

Start-to-stop time > 50 ns

Auto trigger level

Damage level

Range

0 to 100% in 10% steps

Frequency

> 100 Hz

Input amplitude > 100 mVpp
(No amplitude modulation)
Attenuator
Trigger range

10 Vrms

External arm input characteristics5
Impedance

1 kΩ

Input capacitance 17 pF
Start/stop slope Positive or negative

Voltage range x10
x10

External time base input specifications
Input Specifications4

Trigger level 2

Signal input range

Voltage range

200 mVrms to 10 Vrms

Damage level

10 Vrms

Channel 3 (53131A, 53132A)
Channel 2 (53181A)

Frequency

1 MHz, 5 MHz, and 10 MHz
(53132A 10 MHz only)

Frequency range

Time base output specifications

Option 015
(for 53181A
only)

100 MHz to 1.5 GHz
(see Opt. 030 for
additional specs)

Option 030

100 MHz to 3 GHz

Option 050

200 MHz to 5 GHz

Option 124

200 MHz to 12.4 GHz

Power range and sensitivity (Sinusoid)
Option 030

5 Vrms

100 MHz to 2.7 GHz:
-27 dBm to +19 dBm
2.7 GHz to 3 GHz:
-21 dBm to +13 dBm

Option 050

200 MHz to 5 GHz:
-23 dBm to +13 dBm

Option 124

200 MHz to 12.4 GHz
-23 dBm to +13 dBm

Damage level
Option 030

5 Vrms

Option 050

+25 dBm

Option 124

+25 dBm

Output frequency 10 MHz
Voltage

> 1 Vpp into 50 Ω
(centered around 0 V)

1. Specifications and characteristics for Channels
1 and 2 are identical for both common and
separate configurations.
2. Values shown are for X1 attenuator setting.
Multiply all values by 10 (nominal) when using
the X10 attenuator setting.
3. When the 53131A or 53132A are ordered with
the optional rear terminals (Opt. 060), the channel
1 and 2 inputs are active on both front and rear
of the counter. When the 53181A is ordered with
the optional rear terminal, the channel 1 input is
active on both front and rear of the counter. For
this condition, specifications indicated for the rear
connections also apply to the front connections.
4. When optional additional channels are ordered
with Opt. 060, refer to configuration table for
Opt. 060 under ordering info on page 8. There is
no degradation in specifications for this input,
as applicable.
5. Available for all measurements except peak volts.
External arm is referred to as external gate for
some measurements.

For automatic or external arming:
(and signals < 100 Hz using timed arming)
tres

LSD displayed:

Gate time

RMS resolution:

Frequency
or
period

t 2res + (2 × Trigger error) 2

Gate time

53131A tres

53132A tres

Frequency
or
period

53181A tres

typical
650 ps
200 ps
650 ps
see graphs for worst case resolution performance
N
For automatic arming: Gate time =
Frequency
where N = 1 for standard channel frequency < 1 MHz
4 for standard channel frequency > 1 MHz
128 for optional channel

Systematic uncertainty:

± Time base error ±

t acc

Gate time

53131A tacc

53132A tacc

350 ps

100 ps

350 ps

1.25 ns

500 ps

1.25 ns

Typical
Worst case

Frequency
or
period

53181A tacc

Trigger: Default setting is auto trigger at 50%

For time or digits arming:

LSD displayed:
RMS resolution
(see graph 2):

2
Gate time ×
4×

× tres

Number of samples

t 2res + (2 ×Trigger error 2)

Gate time ×

53131A/181A
tres
tjitter

Number of samples

tjitter
Gate time

Frequency
or
period

53132A
tres
tjitter

500 ps
50 ps
225 ps
3 ps
Typical
See graphs for worst case resolution performance
Number of samples = Gate time × Frequency (Frequency < 200 kHz)
Gate time × 200,000

Systematic uncertainty:
53131A/181A
tacc

± Time base error ±

(Frequency > 200 kHz)
t acc
Gate time

53132A
tacc

Typical

100 ps

10 ps

Worst case

300 ps

100 ps

Trigger: Default setting is auto trigger at 50%

Frequency
or
period

Measurement Specifications

Frequency (53131A, 53132A, 53181A)

Phase (53131A, 53132A)

Peak volts (53131A, 53132A, 53181A)

Channel 1 and 2 (53131A, 53132A)
Channel 1 (53181A)

Measurement is specified over the
full signal range of Channels 1 and 2.

Range

Results range -180° to +360°

Measurement is specified on Channels 1 and 2
for dc signals; or for ac signals of frequencies
between 100 Hz and 30 MHz with peak-to-peak
amplitude greater than 100 mV.

0.1 Hz to 225 MHz

Channel 3 (53131A, 53132A)
Channel 2 (53181A)
Option 015
100 MHz to 1.5 GHz
(53181 A only)
Option 030

100 MHz to 3 GHz

Option 050

200 MHz to 5 GHz

Option 124

200 MHz to 12.4 GHz

Results range -5.1 V to +5.1 V

Duty cycle (53131A, 53132A)

Resolution

Measurement is specified over the full
signal range of Channel 1. However, both the
positive and negative pulse widths must be
greater than 4 ns.

Peak volts systematic uncertainty

Results range 0 to 1 (e.g. 50% duty cycle
would be displayed as .5)

Use of the input attenuator multiplies all
voltage specifications (input range, results
range, resolution and systematic uncertainty)
by a nominal factor of 10.

Rise/fall time (53131A, 53132A)

Gate time

Measurement is specified over the full signal
ranges of Channel 1. The interval between the
end of one edge and start of a similar edge
must be greater than 4 ns.

Auto mode, or 1 ms to 1000 s

Edge selection Positive or negative

GPIB ASCII

(Period 2 or 3 selectable via GPIB only)

Period (53131A, 53132A, 53181A)
Channel 1 and 2 (53131A, 53132A)
Channel 1 (53181A)
Range

4.44 ns to 10 s

Channel 3 (53131A, 53132A)
Channel 2 (53181A)

Trigger

Option 015
0.66 ns to 10 ns
(53181A only)

Results range 5 ns to 10 5 s

Option 030

0.33 ns to 10 ns

Option 050

0.2 ns to 5 ns

Option 124

80 ps to 5 ns

Frequency ratio (53131A, 53132A, 53181A)
Measurement is specified over the full signal
range of each input.
Results range

-10

to 10

“Auto” gate time 100 ms

Default setting is auto trigger
at 10% and 90%

10 mV

for ac signals: 25 mV + 10% of V
for dc signals: 25 mV + 2% of V

Measurement throughput
200 measurements/s (maximum)

Measurement arming
Start
measurement

Free run, manual, or external

Stop
measurement

Continuous, single, external,
or timed

Pulse width (53131A, 53132A)

Time interval

100 µs to 10 s (53131A)

Measurement is specified over the full signal
range of Channel 1. The width of the opposing
pulse must be greater than 4 ns.

Delayed
arming

100 ns to 10 s (53132A)

Pulse selection Positive or negative

Arming modes

Trigger

(Note that not all arming modes are available
for every measurement function.)

LSD

500 ps (53131A)/150 ps
(53132A)

Default setting is auto trigger
at 50%

Results range 5 ns to 10 5 s

Time interval (53131A, 53132A)

LSD

500 ps (53131A)/150 ps
(53132A)

Measurement is specified over the full signal
ranges6 of Channels 1 and 2.
5

Results range -1 ns to 10 s

Totalize (53131A, 53132A)

LSD

Measurement is specified over the
full signal range of Channel 1.

500 ps (53131A)/150 ps
(53132A)

Results range 0 to 10 15
Resolution

± 1 count

5. Available for all measurements except peak volts.
External arm is referred to as external gate for some
measurements.
6. See specifications for pulse width and rise/fall time
measurements for additional restrictions on signal
timing characteristics.

Time interval, pulse width, rise/fall time (53131A and 53132A only):
RMS resolution:

(tres) 2 + Start trigger error 2 + Stop trigger error 2

Systematic uncertainty:

± (Time base error × Measurement) Trigger level timing error ± 1.5 ns Differential channel error (53131A)
± (Time base error × Measurement) Trigger level timing error ± 900 ps Differential channel error (53132A)
where tres = 750 ps for the 53131A, 300 ps for the 53132A

Frequency ratio:
LSD: Ratio 12 :

Ch1 , Ch1 , Ch2 , Ch3
(53131A and 53132A)
Ch2 Ch3 Ch1 Ch1
1
Ch2 Freq × Gate time

RMS Resolution: Ratio 12 :
2

Ratio 1 :

2×

Ratio 1 :

Ch1 , Ch2
(53181A)
Ch2 Ch1

Ch2 Freq
(Ch1 Freq) 2 × Gate time

1 + (Ch1 Freq × Ch2 Trigger error) 2
Ch2 Freq × Gate time

2 × Ch2 Freq × 1 + (Ch1 Freq × Ch2 Trigger error) 2
(Ch1 Freq) 2 × Gate time

For measurements using Ch3,
substitute Ch3 for Ch2 in these
equations. To minimize relative
phase measurement error,
connect the higher frequency
signal to channel 1.

Systematic uncertainty: ± 2x resolution

Phase (53131A and 53132A)
RMS resolution:

((Tres)2

+ (2 x Trigger error 2)) ×

Phase

× Frequency × 360°

360°

Systematic uncertainty:

( ± Trigger level timing error ± 1.5 ns Differential channel error) × Frequency × 360° (53131A)
( ± Trigger level timing error ± 900 ps Differential channel error) × Frequency × 360° (53132A)

Duty cycle (53131A and 53132A)
RMS resolution:
tres

((Tres)2 +

53131A

53132A

750 ps

300 ps

(2 × Trigger error 2)) × (1 + Duty cycle 2) × Frequency

Auto arming: Measurements are initiated
immediately and acquired as fast as possible,
using a minimum number of signal edges.
Timed arming: The duration of the measurement
is internally timed to a user-specified value
(also known as the “gate time”).
Digits arming: Measurements are performed
to the requested resolution (number of digits)
through automatic selection of the acquisition
time.
External arming: An edge on the external arm
Input enables the start of each measurement.
Auto arming, timed arming modes or another
edge on the external arm input may be used to
complete the measurement.

Time interval delayed arming: For time interval
measurements, the stop trigger condition is
inhibited for a user-specified time following the
start trigger. The 53132A offers advanced time
interval arming capabilities including use of user
specified time or Channel 2 events to delay both
start and stop triggers.

Measurement limits
Limit checking: The measurement value is
checked against user-specified limits at the
end of each measurement.
Display modes: The measurement result may
be displayed as either the traditional numeric
value or graphically as an asterisk moving
between two vertical bars.

Out-of-limits Indications:
• The limits annunciator will light on the front
panel display.
• The instrument will generate an SRQ if
enabled via GPIB.
• The limits hardware signal provided via the
RS-232 connector will go low for the duration
of the out-of-limit condition.
• If the analog display mode is enabled, the
asterisk appears outside the vertical bars,
which define the upper and lower limits.

Fractional time base error (see graph 3)
Time base error is the maximum fractional frequency variation of the time base due to aging or
fluctuations in ambient temperature or line voltage:
Time base error =

(

)

∆f
∆f
∆f
— Aging rate + — Temperature + — Line voltage
f
f
f

Multiply this quantity by the measurement result to yield the absolute error for that measurement.
Averaging measurements will not reduce (fractional) time base error. The counters exhibit negligible
sensitivity to line voltage; consequently the line voltage term may be ignored.

Trigger error
External source and input amplifier noise may advance or delay the trigger points that define the
beginning and end of a measurement. The resulting timing uncertainty is a function of the slew rate
of the signal and the amplitude of spurious noise spikes (relative to the input hysteresis band).
The (rms) trigger error associated with a single trigger point is:

Trigger error =

(E input ) 2 + (E signal ) 2
Input signal slew rate at trigger point

(in seconds)

where
Einput = RMS noise of the input amplifier: 1 mVrms (350 µVrms typical). Note that the internal
measurement algorithms significantly reduce the contribution of this term.
Esignal = RMS noise of the input signal over a 225 MHz bandwidth (100 kHz bandwidth when the
low-pass filter is enabled). Note that the filter may substantially degrade the signal’s slew rate at
the input of the trigger comparator.
For two-trigger-point measurements (e.g. rise time, pulse width), the trigger errors will be referred
to independently as start trigger error and stop trigger error.

Trigger level timing error (see graph 6)
Trigger level timing error results from a deviation of the actual trigger level from the specified level.
The magnitude of this error depends on resolution and accuracy of the trigger level circuit, input
amplifier fidelity, input signal slew rate, and width of the input hysteresis band.
The following equations should be summed together to obtain the overall trigger level timing error.
At the “High” sensitivity input setting, the hysteresis band can be assumed to be the sensitivity of
the counter input (see page 2). Reduction of input sensitivity or use of the attenuator will increase the size of this band.
Input hysteresis error:
Trigger level setting error: ±

0.5 x hysteresis band
Input signal slew rate at start trigger point

0.5 x hysteresis band

–

Input signal slew rate at stop trigger point

15 mV ± (1% x start trigger level setting)
Input signal slew rate at start trigger point

15 mV ± (1% x stop trigger level setting)
Input signal slew rate at stop trigger point

Differential channel error
The differential channel error term stated in several systematic uncertainty equations accounts for
channel-to-channel mismatch and internal noise. This error can be substantially reduced by performing
a TI calibration (accessible via the utility menu) in the temperature environment in which future
measurements will be made.

Graph 1:
Agilent 53131A/181A–Worst case
RMS resolution7
(Automatic or external arming)

1E + 02

Auto armed

The graphs may also be used to compute errors
for period measurements. To find the period
error (DP), calculate the frequency of the input
signal (F = 1/P) and find the frequency error
(DF) from the chart.
Then calculate the period error as:

∆P =

∆F
F

Frequency error (Hz)

1E + 00
1E – 02
1E – 04

1 ms
1E – 06

100 ms

1E – 08
P

10 s

10 ms

Gate
time

1E – 10
10

100

1000

10000

1E + 05 1E + 06

1E + 07

1E + 08

1E + 09

1E + 10

Input frequency (Hz)

Graph 2:
Agilent 53131A/181A–Worst case
RMS resolution7
(Time or digits arming)

E + 02

Frequency error (Hz)

1E + 00
1E – 02
1E – 04

10 ms

1 ms

1E – 06

1E – 08

100 ms

Gate
time

10 s
1E – 10
10

100

1000

10000

1E + 05 1E + 06

1E + 07

1E + 08

1E + 09

1E + 10

Input frequency (Hz)

Time or digit arming
Frequency error +

× 2 × Trigger error
× Number of samples

Gate time

Frequency
or
period

10 kHz
1 kHz
100 Hz
10 Hz
1 Hz
100 mHz
10 mHz
1 mHz
100 µHz
10 µHz
1 µHz
100 nHz
10 nHz

Standard T.B.
1 year after cal

High stability T.B.
10 years after cal

Standard T.B.
1 month after cal
High stability T.B.
1 year after cal
High stability T.B.
1 month after cal
1 Hz
1 ns

10 Hz
10 ns

Automatic or external arming
Frequency error +

× Trigger error
Gate time

Medium T.B.
1 year after cal

100 Hz
100 ns

1 kHz
1 µs

Medium T.B.
1 month after cal

Ultra stability T.B.
1 year after cal

10 kHz 100 kHz
10 µs 100 µs

1 MHz
1 ms

10 MHz 100 MHz
10 ms 100 ms

Input signal frequency or time
×

Frequency
or
period

1 GHz
1 sec

10 µs
1 µs
100 ns
10 ns
1 ns
100 ps
10 ps
1 ps
100 fs
10 fs
1 fs
100 as
10 as

Time error

7. Graphs 1, 2, 4 and 5 do not reflect the effects of
trigger error. To place an upper bound on the added
effect of this error term, determine the frequency
error from the appropriate graph and add a trigger
error term as follows:

Frequency error

Graph 3:
Timebase error

1E + 02

Graph 4:
Agilent 53132A–Worst case
RMS resolution7
(Automatic or external arming)

Auto armed

Frequency error (Hz)

1E + 00
1E – 02
1E – 04

1 ms
1E – 06

100 ms 10 ms
1s

Gate
time

1E – 08

10 s
1E – 10
10

100

1000

10000

1E + 05

1E + 06

1E + 07 1E + 08

1E + 09

1E + 10

Input frequency (Hz)

Graph 5:
Agilent 53132A–Worst case
RMS resolution7
(Time or digits arming)

E + 02

1 ms
Frequency Error (Hz)

1E + 00
1E – 02
1E – 04
1E – 06

100 ms

1E – 08

10 ms

Gate
time

1s
10 s

1E – 10
10

100

1000

10000

1E + 05

1E + 06

1E + 07 1E + 08

1E + 09

1E + 10

Input frequency (Hz)

100 µs

Graph 6:
Trigger level timing error
(Level setting error and
input hysteresis)

200 to 225 MHz rep. rate

Trigger error per trigger point

10 µs
100 to 200 MHz rep. rate
1 µs

dc to 100 MHz rep. rate

100 ns
10 ns
Pulse and T.I. at 5 V trigger point
1 ns
Pulse and T.I. at 2.5 V trigger point
100 ps
Pulse and T.I. at 0 V trigger point

Time or digit arming
Frequency error +

10 ps
4

× 2 × Trigger error
× Number of samples

Gate time

Frequency
or
period

1 V/ms

10 mV/µs

× Trigger error
Gate time

Frequency
or
period

1 V/µs

10 mV/ns

100 mV/ns

Input signal slew rate at trigger point

Automatic or external arming
Frequency error +

100 mV/µs

1 V/ns

10 mV/ps

Measurement
Statistics

General
Information

Available statistics

Save and recall

Environment

Mean, Minimum, Maximum, Standard Deviation

Up to 20 complete instrument setups may
be saved and recalled later. These setups
are retained when power is removed from
the counter.

0°C to 55°C operating
–40°C to 71°C storage

Number of measurements 2 to 1,000,000.
Statistics may be collected on all measurements
or on only those which are between the limit
bands. When the limits function is used in
conjunction with statistics, N (number of
measurements) refers to the number of in-limit
measurements. In general, measurement
resolution will improve in proportion to N,
up to the numerical processing limits of
the instrument.

Rack dimensions (HxWxD)

Remote Interface
GPIB (IEEE 488.1-1987,
IEEE 488.2-1987)

88.5 mm x 212.6 mm x 348.3 mm
Remote programming language
Weight
3.5 kg maximum

SCPI-1992.0 (Standard Commands
for Programmable Instruments)

Warranty

Safety

Measurements

1 year

Statistics may be collected for all measurements
except peak volts and totalize.

Designed in compliance with IEC-1010,
UL-3111-1 (draft), CAN/CSA 1010.1

Power supply
100 to 120 VAC ± 10% -50, 60 or
400 Hz ± 10% 220 to 240 VAC
± 10% -50 or 60 Hz ± 10%

EMC
CISPR-11, EN50082-1,
IEC 801-2, -3, -4

ac Line selection

Radiated immunity testing

Automatic

When the product is operated at maximum
sensitivity (20 mVrms) and tested at 3 V/m
according to IEC 801-3, external 100 to 200 MHz
electric fields may cause frequency miscounts.

Power requirements
170 VA maximum (30 W typical)

Ordering
Information
53131A

Other options

10 digit/s, 500 ps universal counter

Opt. 001

Medium-stability timebase

Opt. 010

High-stability timebase

Opt. 012

Ultra-high stability timebase
(53132A only)

Opt. 015

1.5 GHz RF input Ch 2
for 53181A only

Opt. 030

3 GHz RF input Ch 3
(Ch 2 on 53181A)

Opt. 050

5 GHz RF input
with type N connector
Ch 3 (Ch 2 on 53181A)

Opt. 124

12.4 GHz RF input
with type N connector
Ch 3 (Ch 2 on 53181A)

53132A
12 digit/s, 150 ps universal counter

53181A
10-digit/s RF counter

Accessories included
Each counter comes with IntuiLink software,
standard timebase, and power cord. CD with
the following: IntuiLink software, Operating,
Programming, Service and Getting Started
Guides, a data sheet, and application notes.

Manual options
(please specify one when ordering)

Opt. 060

Rear-panel connectors*

Opt. A6J

ANSI Z540 compliant calibration

103.6 mm
374.0 mm

212.6 mm

88.5 mm
348.3 mm

*Opt 060 configuration table

ABA

US English

53131A/132A
Ch1 & Ch2 front & rear (in parallel)

ABD

German

Ch3

Opt. 030 rear only, front plugged

ABE

Spanish

Ch3

Opt. 050/124 front only

ABF

French

Ch2

Opt. 050/124 front only

ABJ

Japanese

ABZ

Italian

53181
Ch1

front & rear (in parallel)

ABO

Taiwan Chinese

Ch2

Opt. 015/030 rear only, front plugged

AB1

Korean

Ch2

Opt. 050/124 front only

AB2

Chinese

Accessories
34131A
34161A
34190A

34191A

34194A

254.4 mm

Hard carrying case
Accessory pouch
Rackmount kit: designed for use
with only one instrument, mounted
on either the left or the right side of
the rack.
2U dual flange kit: secures the
instrument to the front of the
rack. This kit can be used with the
34194A dual lock link kit to mount
two half-width, 2U height instruments side-by side.
Dual lock link kit: recommended
for side-by-side combinations and
includes links for instruments of different depths. This kit can be used
with the 34191A 2U dual flange kit
to mount two half-width, 2U height
instruments side-by-side.

www.agilent.com
www.agilent.com/find/counters

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Revised: June 8, 2011

Product specifications and descriptions
in this document subject to change
without notice.
© Agilent Technologies, Inc. 2006, 2011
Published in USA, November 8, 2011
5967-6039EN

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