Specifications
Table Of Contents
- Agilent 53210A/53220A/53230A 350 MHz Universal Frequency Counter/ Timer
- Assembly Level Service Guide
- Performance Tests
- Introduction
- Power-On Test
- Self-Test (Q)
- Agilent 53210A/53220A/53230A Operational Verification
- Agilent 53210A/53220A/53230A Complete Performance Tests
- Test 1: (Q) Absolute Time Base
- Test 2: (Q) Frequency Accuracy - Channels 1 and 2
- Test 3: Single Period
- Test 4: (Q) Pulse Width
- Test 5: (Q) Time Interval
- Test 6a: (Q) Frequency Accuracy - Channel 2/3, Option 106 (6 GHz Microwave Channel)
- Test 6b: (Q) Frequency Accuracy - Channel 2/3, Option 115 (15 GHz Microwave Channel)
- Test 7a: (Q) Pulse Burst Frequency - 53230A Channel 3 Option 150 With Option 106
- Test 7c: (Q) Pulse Burst Frequency - 53230A Channel 3 Option 150 With Option 115
- Agilent 53210A/53220A/53230A Operational Verification and Performance Test Record
- Agilent 53210A/53220A/53230A Performance Test Record (Tests 1 to 7)
- Service
- Introduction
- Returning the Instrument to Agilent Technologies for Service
- About the Agilent 53210A/53220A/53230A Calibration Menu
- The Agilent 53210A/53220A/53230A Calibration Procedures
- Equipment Required
- Determine the Counter Firmware Version
- Calibration Cycle
- Calibration String:
- Internal Reference Oscillator Calibration
- Summary of Oscillator Calibration Procedure:
- Remote Oscillator Calibration Summary:
- Voltage Calibration (Internal DACs)
- Option 106 Microwave Channel Frequency Calibration
- Option 115 Microwave Channel Frequency Calibration
- Internal Auto-Calibration
- To View the Calibration Count
- Resetting the Security Code to a Null
- Pre-Troubleshooting Information
- Troubleshooting the Counter
- Unit is Inoperative
- Unit Fails Self-Test
- Power Supply Check
- Checking the Battery and Battery Charger
- Battery Operation
- Preliminary Steps
- Testing the battery
- Normal Battery Operation
- When the battery is enabled and the counter is not connected to AC power, the battery is discharged at approximately 30% of full initial capacity per day. When the battery is disabled and not connected to AC power, the battery is discharged at approx...
- Remote Battery Commands
- Performing The Counter Self-Test
- To Determine the Counter Firmware Version
- Reseat the Boards
- Re-Run the Counter Self Test
- Error Messages
- Replacing Assemblies
- Introduction
- Tools Required
- To Remove the Cover and Rear Bezel
- To Remove the Internal DC Battery Assembly (Option 300)
- To Remove the GPIB Assembly
- To Remove a 6.0 GHz or 15.0 GHz Microwave Channel Assembly (Options 106/115)
- To Remove the Processor Board
- To Remove the Front Panel Assembly
- To Remove the Motherboard
- To Remove the AC Power Supply Assembly
- Retrofitting Options
- Introduction
- To Retrofit Ultra-High Stability Timebase (Option 010)
- To Retrofit the GPIB Connector
- To Retrofit the Internal Battery DC Power (Option 300)
- To Retrofit the 53210A (Channel 1) or 53220A/53230A (Channels 1/2) Rear Panel Inputs (Option 201)
- To Retrofit the 53210A Channel 2 Front Panel Input (Option 106 or Option 115, plus Front Panel Option 202)
- To Retrofit the 53210A Channel 2 Rear Panel Input, 6.0 GHz (Option 106) or 15.0 GHz (Option 115) plus Rear Panel Option 203
- To Retrofit the 53220A/53230A Channel 3 Input, 6.0 GHz (Option 106) or 15.0 GHz (Option 115) plus Front Panel Option 202
- To Retrofit the 53220A/53230A Channel 3 Input, 6.0 GHz (Option 106) or 15.0 GHz (Option 115) plus Rear Panel Option 203
- To Retrofit Option 150 (Pulse Microwave Measurements) for the 53230A
- Replaceable Parts
- Backdating

Assembly Level Service Guide 3
Waste Electrical and
Electronic Equipment
(WEEE) Directive 2002/96/EC
This product complies with the WEEE Direc-
tive (2002/96/EC) marking requirement. The
affixed product label (see below) indicates
that you must not discard this electrical/elec-
tronic product in domestic household waste.
Product Category: With reference to the
equipment types in the WEEE directive
Annex 1, this product is classified as a
"Monitoring and Control instrumentation"
product.
Do not dispose in domestic household
waste.
To return unwanted products, contact your
local Agilent office, or see
www.agilent.com/environment/product
for more information.
Lithium Battery Recycling
The 53210A/53220A/53230A counters con-
tain a 3V “coin cell” lithium battery. Agilent
recommends that this battery be replaced
every year at the instrument’s 1-year cali-
bration interval. Replacement procedures
are provided in the 53220A/53230A Service
Guide.
Option 300 provides battery operation of the
53210A/53220A/53230A using a 12 lithium
battery. Performance of this battery will
degrade over time as a function of the num-
ber of battery charge/discharge cycles.
Refer to local, state, or Federal regulations
when disposing of, or recycling either
battery.
Safety Information
The following general safety precautions
must be observed during all phases of oper-
ation of this instrument. Failure to comply
with these precautions or with specific warn-
ings or operating instructions in the product
manuals violates safety standards of design,
manufacture, and intended use of the instru-
ment. Agilent Technologies assumes no lia-
bility for the customer's failure to comply
with these requirements.
General
Do not use this product in any manner not
specified by the manufacturer. The protec-
tive features of this product may be impaired
if it is used in a manner not specified in the
operation instructions.
Before Applying Power
Verify that all safety precautions are taken.
Note the instrument's external markings
described under "Safety Symbols".
Ground the Instrument
The Agilent 53210A/53220A/53230A is pro-
vided with a grounding-type power plug. The
instrument chassis and cover must be con-
nected to an electrical ground to minimize
shock hazard. The ground pin must be firmly
connected to an electrical ground (safety
ground) terminal at the power outlet. Any
interruption of the protective (grounding)
conductor or disconnection of the protective
earth terminal will cause a potential shock
hazard that could result in personal injury.
Fuses
The Agilent 53210A/53220A/53230A is pro-
vided with an internal line fuse appropriate
for the line voltages listed on the instrument.
This fuse is not user accessible.
Do Not Operate in an
Explosive Atmosphere
Do not operate the instrument in the pres-
ence of flammable gases or fumes.
Do Not Operate Near
Flammable Liquids
Do not operate the instrument in the pres-
ence of flammable liquids or near containers
of such liquids.
Do Not Remove the
Instrument Cover
Only qualified, service-trained personnel
who are aware of the hazards involved
should remove instrument covers. Always
disconnect the power cable and any exter-
nal circuits before removing the instrument
cover.
Do Not Modify the
Instrument
Do not install substitute parts or perform any
unauthorized modification to the product.
Return the product to an Agilent Sales and
Service Office for service and repair to
ensure that safety features are maintained.
In Case of Damage
Instruments that appear damaged or defec-
tive should be made inoperative and
secured against unintended operation until
they can be repaired by qualified service
personnel.
Cleaning the Instrument
Clean the outside of the instrument with a
soft, lint-free, slightly-dampened cloth. Do
not use detergents or chemical solvents.