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Technical Support

Electronic Measurement

Support by Product Model Number:

1-24 of 24

What is the life time of the real time clock battery (1420-3056)?
1 year - should be replaced at the instrument's calibration interval.

FAQ 2015-12-14

Can the counter make simultaneous measurements on channels 1 and 2?
No. The channels are independent and can be configured separately; however, they do not have separate processors.

FAQ 2015-09-21

Why will the counter not make low frequency measurements?
Verify the System Timeout setting by pressing Utility - Instr Setup - Time Out Settings. Turn the time out off or set it to a large value.

FAQ 2015-09-01

My 53200A series counter does not have GPIB. How can I order it?
Contact the Keysight Technical Contact Center and order 53200U-400. This is a $0 upgrade kit which is customer or service center installed.

FAQ 2015-09-01

Why does the counter display Error +580 "No Valid External Timebase"?
53200A counters check for an external time base during the measurement.

FAQ 2015-09-01

Can you advise of alternatives to printing and acquiring screen images from the various Keysight Analyzers equipped with only a GP-IB interface?
There are several way to retrieve screenshots.

FAQ 2014-02-18

Why are the 435/6/7/8A/B Power Meter, 53147/8/9A Microwave Counter/Power Meter/DVM, 70100A MMS Power Meter …
The 435/6/7/8A/B, 53147/8/9A, 70100A, E1416A and E7495A/B are incompatible with the N8480 Power Sensors because….

FAQ 2013-11-17

How do I upgrade my 53200 Series Frequency Counter?
Find Information on Hardware Upgrades, Instrument Software, etc....

FAQ 2013-05-23

How do I configure RS-232 for communications on my 53131/32A or 53181A frequency counter?
None of the counters can communicate over RS-232. Frequency counters must use GPIB to communicate with the PC. RS-232 is used for printing only.

FAQ 2013-02-07

Are the Keysight 531xxA and 53200 Series frequency counter inputs floating or grounded?
The counter inputs are not floating -- the BNC shield (shell) is at chassis ground (earth ground).

FAQ 2013-02-07

Can the options be retrofitted on the 53131A/53132A/53181A and 53200 Series counters?
This table explains which options may be installed and/or require a service center.

FAQ 2013-01-29

How Do I Find My Host Information?
The Host ID is the model and/or serial number of the product, both of which can be found on the serial number label on the back of the instrument.

FAQ 2012-06-14

FAQs: Migration to New RF & Universal Frequency Counters
Transitioning from the 53131A, 53132A or 53181A to the 53200 Series RF & Universal Frequency Counter/Timers

FAQ 2011-04-18

What power sensors are available for use with 53147A/53148A/53149A frequency counters?
This FAQ summarizes several questions regarding the use of power sensors and 5314xA counters.

FAQ 2010-11-30

Does the frequency counter come standard with a 10MHz external time base option?
Yes. A standard time base is provided that can be routed to other instruments for synchronization. You may also supply your own external time base as an input to the frequency counter.

FAQ 2010-10-12

How do I rack mount two instruments of different depths?
There are three ways to rack instruments of different depths side-by-side; for example, a Keysight 33220A with a Keysight 34401A.

FAQ 2010-10-12

53200 Series: How do you set the measurement timeout on the 53210A, 53220A, 53230A counters?
The measurement time-out is the time allowed for each measurement to complete...

FAQ 2010-10-12

The specifications for time interval measurements lists a negative value in the results range. Why?
The counter will display a negative result if the end on the 2nd channel slightly precedes the edge on the first channel.

FAQ 2010-10-12

Why is the fan on the Counter still operating after turning the power off?
This is to keep the internal Time Base (10 MHz oscillator) stable.

FAQ 2010-10-12

Why won't Help (.hlp) files view properly with Windows Vista?
In order to view 32-bit Help (.hlp) files with Windows® Vista, you must download the WinHlp32.exe Help program from the Microsoft web site at

FAQ 2010-10-12

How do you know when the counter has completed a measurement?
One of three methods: reading the register, reading the Status Byte or generating an interrupt.

FAQ 2010-09-15

Are the N8480 Series Power Sensors compatible with the 53148A counter/power meter/DVM?
No, the N8480 Series Power Sensors are not compatible with the 53148A counter/power meter/DVM.

FAQ 2009-02-04

How do you prevent the counter from hanging up the GPIB bus when no signal is applied?
Set the GPIB timeout value to a sufficient value to complete the measurement.

FAQ 2008-04-22

What are the hysteresis band values for the Keysight 531xxA-Series Counters?
Some of the counter accuracy formulas (see the manual's specifications section) ask for hysteresis band information.

FAQ 2005-12-15