Anritsu ML2438A User Manual
Operation and Remote Programming Manual
ML2437A / ML2438A
Power Meter
Anritsu Company
490 Jarvis Drive
Morgan Hill, CA 95037-2809
USA
http://www.anritsu.com
Part Number: 10585-00001
Published: March 2013
Copyright 2013 Anritsu Company
Revision: M
WARRANTY
The Anritsu product(s) listed on the title page is (are) warranted against defects in materials and
workmanship for one year from the date of shipment.
Anritsu’s obligation covers repairing or replacing products which prove to be defective during the
warranty period. Buyers shall prepay transportation charges for equipment returned to Anritsu for
warranty repairs. Obligation is limited to the original purchaser. Anritsu is not liable for consequential
damages.
LIMITATION OF WARRANTY
The foregoing warranty does not apply to Anritsu connectors that have failed due to normal wear. Also,
the warranty does not apply to defects resulting from improper or inadequate maintenance,
unauthorized modification or misuse, or operation outside of the environmental specifications of the
product. No other warranty is expressed or implied, and the remedies provided herein are the Buyer’s
sole and exclusive remedies.
DISCLAIMER OF WARRANTY
DISCLAIMER OF WARRANTIES. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE
LAW, ANRITSU COMPANY AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, EITHER
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH REGARD TO THE
PRODUCT. THE USER ASSUMES THE ENTIRE RISK OF USING THE PRODUCT. ANY LIABILITY
OF PROVIDER OR MANUFACTURER WILL BE LIMITED EXCLUSIVELY TO PRODUCT
REPLACEMENT.
NO LIABILITY FOR CONSEQUENTIAL DAMAGES. TO THE MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, IN NO EVENT SHALL ANRITSU COMPANY OR ITS SUPPLIERS BE LIABLE
FOR ANY SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER
(INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS,
BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY
LOSS) ARISING OUT OF THE USE OF OR INABILITY TO USE THE PRODUCT, EVEN IF ANRITSU
COMPANY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME
STATES AND JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY
NOT APPLY TO YOU.
TRADEMARK ACKNOWLEDGMENTS
The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by
Anritsu is under license. Other trade marks and trade names are those of their respective owners.
Windows XP and Windows Vista are registered trademarks of Microsoft Corporation. Adobe Acrobat
and Acrobat Reader are trademarks of Adobe Systems Incorporated.
NOTICE
Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers as a
guide for the proper installation, operation and maintenance of Anritsu Company equipment and
computer programs. The drawings, specifications, and information contained herein are the property of
Anritsu Company, and any unauthorized use or disclosure of these drawings, specifications, and
information is prohibited; they shall not be reproduced, copied, or used in whole or in part as the basis
for manufacture or sale of the equipment or software programs without the prior written consent of
Anritsu Company.
UPDATES
Updates, if any, can be downloaded from the Documents area of the Anritsu Website at:
http://www.anritsu.com
For the latest service and sales contact information in your area, please visit:
http://www.anritsu.com/contact.asp
CE Conformity Marking
Anritsu affixes the CE Conformity marking onto its conforming products in accordance with
Council Directives of The Council Of The European Communities in order to indicate that
these products conform to the EMC and LVD directive of the European Union (EU).
C-tick Conformity Marking
Anritsu affixes the C-tick marking onto its conforming products in accordance with the
electromagnetic compliance regulations of Australia and New Zealand in order to indicate
that these products conform to the EMC regulations of Australia and New Zealand.
Notes On Export Management
This product and its manuals may require an Export License or approval by the government
of the product country of origin for re-export from your country.
Before you export this product or any of its manuals, please contact Anritsu Company to
confirm whether or not these items are export-controlled.
When disposing of export-controlled items, the products and manuals need to be broken or
shredded to such a degree that they cannot be unlawfully used for military purposes.
Mercury Notification
This product uses an LCD backlight lamp that contains mercury. Disposal may be regulated
due to environmental considerations. Please contact your local authorities or, within the
United States, the Electronics Industries Alliance (www.eiae.org) for disposal or recycling
information.
Safety Symbols
To prevent the risk of personal injury or loss related to equipment malfunction, Anritsu
Company uses the following symbols to indicate safety-related information. For your own
safety, please read the information carefully before operating the equipment.
Symbols Used in Manuals
Danger
This indicates a risk from a very dangerous condition or procedure that
could result in serious injury or death and possible loss related to equipment
malfunction. Follow all precautions and procedures to minimize this risk.
Warning
Caution
This indicates a risk from a hazardous condition or procedure that could
result in light-to-severe injury or loss related to equipment malfunction.
Follow all precautions and procedures to minimize this risk.
This indicates a risk from a hazardous procedure that could result in loss
related to equipment malfunction. Follow all precautions and procedures to
minimize this risk.
Safety Symbols Used on Equipment and in Manuals
The following safety symbols are used inside or on the equipment near operation locations to
provide information about safety items and operation precautions. Ensure that you clearly
understand the meanings of the symbols and take the necessary precautions before operating
the equipment. Some or all of the following five symbols may or may not be used on all
Anritsu equipment. In addition, there may be other labels attached to products that are not
shown in the diagrams in this manual.
This indicates a prohibited operation. The prohibited operation is indicated
symbolically in or near the barred circle.
This indicates a compulsory safety precaution. The required operation is
indicated symbolically in or near the circle.
This indicates a warning or caution. The contents are indicated symbolically
in or near the triangle.
This indicates a note. The contents are described in the box.
These indicate that the marked part should be recycled.
ML2437A/38A OM/PM PN: 10585-00001 Rev. M 1-1
For Safety
Warning
Warning
Warning
Always refer to the operation manual when working near locations at
which the alert mark, shown on the left, is attached. If the operation,
etc., is performed without heeding the advice in the operation
manual, there is a risk of personal injury. In addition, the equipment
performance may be reduced. Moreover, this alert mark is sometimes
used with other marks and descriptions indicating other dangers.
When supplying power to this equipment, connect the accessory
3-pin power cord to a 3-pin grounded power outlet. If a grounded
3-pin outlet is not available, use a conversion adapter and ground the
green wire, or connect the frame ground on the rear panel of the
equipment to ground. If power is supplied without grounding the
equipment, there is a risk of receiving a severe or fatal electric shock.
This equipment can not be repaired by the operator. Do not attempt to
remove the equipment covers or to disassemble internal
components. Only qualified service technicians with a knowledge of
electrical fire and shock hazards should service this equipment.
There are high-voltage parts in this equipment presenting a risk of
severe injury or fatal electric shock to untrained personnel. In
addition, there is a risk of damage to precision components.
Caution
Warning
Electrostatic Discharge (ESD) can damage the highly sensitive
circuits in the instrument. ESD is most likely to occur as test devices
are being connected to, or disconnected from, the instrument’s front
and rear panel ports and connectors. You can protect the instrument
and test devices by wearing a static-discharge wristband.
Alternatively, you can ground yourself to discharge any static charge
by touching the outer chassis of the grounded instrument before
touching the instrument’s front and rear panel ports and connectors.
Avoid touching the test port center conductors unless you are
properly grounded and have eliminated the possibility of static
discharge.
Repair of damage that is found to be caused by electrostatic
discharge is not covered under warranty.
This product is supplied with a rechargeable battery that could
potentially leak hazardous compounds into the environment. These
hazardous compounds present a risk of injury or loss due to
exposure. Anritsu Company recommends removing the battery for
long-term storage of the instrument and storing the battery in a
leak-proof, plastic container. Follow the environmental storage
requirements specified in the product technical data sheet.
1-2 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
Table of Contents
Chapter 1—General Information
1-1 About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Associated Documentation and Software. . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-3 Identification Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-4 Available Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-5 Available Options, Accessories, and Power Sensors. . . . . . . . . . . . . . . . . 1-2
Chapter 2—Installation
2-1 Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Sensor Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-3 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
AC Line Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
DC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Battery Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Fuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-4 Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-5 Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-6 Battery Charging, Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . 2-3
2-7 Storage and Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Preparation for Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-8 Preparing for Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Chapter 3—Memory and Security Considerations
3-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Internal Flash Memory (8 MB EEPROM) . . . . . . . . . . . . . . . . . . . . . . . 3-1
RAM Memory used by the DSP microcomputer (640 KB). . . . . . . . . . . 3-1
RAM Memory as non-volatile RAM (1 MB) . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 Secure Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-3 Clearing the Non-Volatile Static RAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3-4 Anritsu Power Sensors EEPROM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
EEPROM Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-1
Table of Contents (Continued)
Chapter 4—Connections
4-1 Front Panel Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Calibrator Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Sensor A Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Sensor B Connector (ML2438A only) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-2 Rear Panel Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Chapter 5—Front Panel Operation
5-1 Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 Power-On Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5-3 Sensor Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Calfactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Averaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Duty cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Rng Hold [RGH]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5-4 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Rel 1 [REL] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Rel 2 [REL] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
5-5 Trigger Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
5-6 System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Power vs. Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Source Sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29
Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30
Print [PRINT] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32
Graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35
Secure [SECURE] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-36
Identity [*IDN, OI] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-36
Contents-2 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
5-7 Cal/Zero Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Zero/Cal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Cal 0 dBm [CAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Zero [ZERO] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
RF ON/OFF [RFCAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Ext V [VZERO] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Chapter 6—Procedures
6-1 Power Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-2 Zeroing the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-3 Sensor Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-4 Sensor Zero/Cal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-5 Performance Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-6 Printer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-7 GPIB Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-8 Serial Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6-9 RS232 Modem Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6-10 Profile Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Typical Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Cursor Readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Triggered Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Control of x-axis - Width of Profile - Sample Time . . . . . . . . . . . . . . . 6-13
Advanced Triggering and Setup Options . . . . . . . . . . . . . . . . . . . . . . 6-14
6-11 Source Sweep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Frequency Sweep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Power Sweep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Source Sweep Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Using an Anritsu Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
6-12 Power vs. Time Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
6-13 User Cal Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Example Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Readout Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
6-14 Optimizing Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
DISP ON/OFF command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
FAST ON/OFF command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
Using Buffered Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
Changing Measurement Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
An Example Program in C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
6-15 Operator Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Software Loader Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-3
Table of Contents (Continued)
Chapter 7—Measurement Examples
7-1 Example 1: Standard CW Power Measurements . . . . . . . . . . . . . . . . . . . . 7-1
7-2 Example 2: Measuring Modulated Carrier . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
7-3 Example 3: Optimizing Measurements at Low Power Levels. . . . . . . . . . . 7-9
7-4 Example 4: Using Both Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
7-5 Example 5: Using Two Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
7-6 Example 6: Gain Compression Measurement . . . . . . . . . . . . . . . . . . . . . 7-15
7-7 Example 7: Measuring Pulse Signals With a Duty Cycle . . . . . . . . . . . . . 7-17
7-8 Example 8: Profiling Pulse Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
7-9 Example 9: Displaying GSM-TDMA Bursts. . . . . . . . . . . . . . . . . . . . . . . . 7-23
7-10 Example 10: Power Versus Time Data Logging . . . . . . . . . . . . . . . . . . . . 7-27
7-11 Example 11: Frequency Measurements Using a Separate Source . . . . . 7-31
Chapter 8—GPIB Operation
8-1 Data I/O Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
<NR1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
<NR2> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
<NR3> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
<NRf> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
<String> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
<Arbitrary ASCII> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
<Arbitrary Block> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
8-2 Query Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
8-3 GPIB PC Card Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
GPIB Device Template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
GPIB Card Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
8-4 Using 488.1 GPIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Device Clear (DCL) and Selected Device Clear (SDC) . . . . . . . . . . . . 8-5
Device trigger (GET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Goto local (GTL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Interface clear (IFC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Local lockout (LLO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Serial poll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
8-5 Using 488.2 GPIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Contents-4 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
8-6 488.2 Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Status Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Event Status Bit (ESB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Message Available Bit (MAV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Getting a Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Service Request Status (SRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
RGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
LIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
MAV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
ESB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
8-7 Functional Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
BNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Data Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
GPIB 488.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
GPIB Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
GPIB Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Profile Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-5
Table of Contents (Continued)
8-8 ML24xxA Native Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
*CLS (Clear GPIB status bytes). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
*ESE (Event Status byte Enable) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
*ESE? (Return Event status register enable mask). . . . . . . . . . . . . . . 8-14
*ESR? Event status register request . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
*IDN? (Request device identification) . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
*OPC (Operations complete) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
*OPC? (Operations complete Output '1') . . . . . . . . . . . . . . . . . . . . . . . 8-14
*RCL (Recall a stored setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
*RST (Reset Device) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
*SAV (Save configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
*SRE (Setup service request enable register) . . . . . . . . . . . . . . . . . . 8-15
*SRE? (Return Service Request Enable register) . . . . . . . . . . . . . . . 8-16
*STB? (Return Status Byte register) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
*TRG (Perform the GPIB 'Group Execute Trigger' command) . . . . . . 8-16
*TST? (Self Test) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
ADDR (Change GPIB address) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
AVG (Sets up averaging for a sensor). . . . . . . . . . . . . . . . . . . . . . . . . 8-18
AVGLL (Auto low level averaging). . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
AVGM (Manual Averaging) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
BAUTS (Battery Auto Turn OFF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
BAUTT (Battery Auto shut off after x minutes) . . . . . . . . . . . . . . . . . . 8-20
BUFF (GPIB response buffering enabled) . . . . . . . . . . . . . . . . . . . . . 8-20
CAL (Cal sensor to 0 dBm reference) . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
CFADJ (Cal Adjust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
CFCAL (Cal factor manual setting) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
CFFRQ (Cal Factor Frequency value) . . . . . . . . . . . . . . . . . . . . . . . . 8-22
CFSRC (Cal factor source) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22
CFUADD (Add an entry pair to a cal factor table) . . . . . . . . . . . . . . . . 8-23
CFUCT (Clear cal factor table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
CFUID (Cal factor table identity update) . . . . . . . . . . . . . . . . . . . . . . . 8-24
CFUNITS (Cal factor display units) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
CFULD (Cal factor table binary load). . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
CFUPT (Preset cal factor table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
CFURD (Cal factor table binary read) . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
CFUSAV (Cal factor table save) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
CFUSEL (Select cal factor table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
CFUTBL (Number of cal factor tables in the sensor) . . . . . . . . . . . . . . 8-26
CFUUSE (Number of cal factor table being used) . . . . . . . . . . . . . . . . 8-26
CFUVLD (Valid cal factor table check) . . . . . . . . . . . . . . . . . . . . . . . . 8-26
CFVAL Current cal factor value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27
CHCFG (Channel input configuration). . . . . . . . . . . . . . . . . . . . . . . . . 8-27
CHRES (Set channel decimal pint resolution) . . . . . . . . . . . . . . . . . . . 8-28
Contents-6 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
CHUNIT (Set Channel units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
CONT (Continue) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
CUR (Cursor in Power vs. Time and Source Sweep modes) . . . . . . . 8-29
CURLK (Link cursors in all graphic modes). . . . . . . . . . . . . . . . . . . . . 8-29
CVSPF (V/GHz calibration factor stop frequency). . . . . . . . . . . . . . . . 8-30
CVSPV (V/GHz calibration factor stop voltage). . . . . . . . . . . . . . . . . . 8-30
CVSTF (V/GHz calibration factor start frequency). . . . . . . . . . . . . . . . 8-30
CVSTV (V/GHz calibration factor start voltage). . . . . . . . . . . . . . . . . . 8-31
DBLGHT (Battery LCD Back light mode) . . . . . . . . . . . . . . . . . . . . . . 8-31
DBLTIM (Auto Backlight OFF timer setting) . . . . . . . . . . . . . . . . . . . . 8-31
DCONT (Set Display Contrast) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
DCONTD (Set display contrast down by one) . . . . . . . . . . . . . . . . . . . 8-32
DCONTU (Set display contrast up by one) . . . . . . . . . . . . . . . . . . . . . 8-32
DISP (Display On or OFF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
DTRGD (Display Trigger Delay) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-33
DUTY (Duty cycle). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34
DUTYS (Duty cycle state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34
EMUL (GPIB emulation mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35
ENTERR (Entry Error beep) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35
ERRLST (Returns the DDE error list) . . . . . . . . . . . . . . . . . . . . . . . . . 8-36
FAST (Operate in non-488.2 compliant mode) . . . . . . . . . . . . . . . . . . 8-37
FHOLD (Fail indicator Hold) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
FRST (Factory Reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-39
GMNMX (Return the minimum and maximum values) . . . . . . . . . . . . 8-39
GPRST (Reset min/max graph). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
GRAUTO (Auto scaling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
GRAVG (Average between profile cursors). . . . . . . . . . . . . . . . . . . . . 8-40
GRCP (Connect points on profile) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
GRDATA (Display Graph Cursor Data) . . . . . . . . . . . . . . . . . . . . . . . . 8-41
GRDDT (Power vs. Time data display time) . . . . . . . . . . . . . . . . . . . . 8-41
GRDRQ (Return Graph Data readout) . . . . . . . . . . . . . . . . . . . . . . . . 8-42
GRFS (Profile Reference line state) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
GRMD (Profile, Power vs. Time and Source Sweep Selection) . . . . . 8-42
GRPIX (Profile type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-43
GRPRD (Profile data collection period) . . . . . . . . . . . . . . . . . . . . . . . . 8-43
GRPTP (Graph Pretrigger Percentage). . . . . . . . . . . . . . . . . . . . . . . . 8-43
GRSWP (Graph Averaging Number for Profile or Source Sweep) . . . 8-44
GRSWR (Reset Graph Averaging for Profile or Source Sweep) . . . . 8-44
GRSWS (Graph Average State for Profile or Source Sweep) . . . . . . 8-44
GRTMM (Profile Min/Max tracking mode) . . . . . . . . . . . . . . . . . . . . . 8-45
GRYB (Set graph Y-axis bottom scale) . . . . . . . . . . . . . . . . . . . . . . . 8-45
GRYT (Set graph Y-axis top scale) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-45
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-7
Table of Contents (Continued)
GT0 (Set to ignore the Group Execute Trigger (GET) command) . . . 8-46
GT1 (Set 'GET' command to TR1 type (immediate) trigger) . . . . . . . . 8-46
GT2 (Set 'GET' command to TR2 type (settling delay) trigger) . . . . . 8-46
GTARM (Set profile trigger arming) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46
GTDLY (Set profile trigger sample delay) . . . . . . . . . . . . . . . . . . . . . . 8-47
GTGW (Set profile trigger gate width) . . . . . . . . . . . . . . . . . . . . . . . . 8-47
GTLVL (Set profile trigger level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47
GTSRC (Set Profile Trigger source) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
GTTYP (Set profile trigger type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
GTXTTL (Set profile external trigger edge) . . . . . . . . . . . . . . . . . . . . 8-49
HLIM (Set High limits) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49
HLIMS (Turn on/off High limits) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
HOLD (Graph hold) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
IBBLP (Blanking active TTL level) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
KEYCK (Turn key click sound on or off) . . . . . . . . . . . . . . . . . . . . . . . 8-51
LINK (Trigger linking) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-51
LLIMS (Turn on/off low limits) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52
MMRST (Min Max Tracking reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-53
MNGDB (Output Min Graph Binary Data) . . . . . . . . . . . . . . . . . . . . . . 8-53
MNGD (Output Min Graph Data) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-53
MNMXS (Track min and max values) . . . . . . . . . . . . . . . . . . . . . . . . . 8-54
MODDEL (Modem redial delay time) . . . . . . . . . . . . . . . . . . . . . . . . . 8-54
MODINIT (Initialize modem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-54
MODLIM (Autodial enable for limits failure) . . . . . . . . . . . . . . . . . . . . 8-54
MODPH (Autodial phone number) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-55
MODPWR (Autodial enable for power on) . . . . . . . . . . . . . . . . . . . . . 8-55
MODRED (Redial count) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-55
MODRNG (Autodial enable for range error) . . . . . . . . . . . . . . . . . . . . 8-56
MXGDB (Output Max Graph Binary Data) . . . . . . . . . . . . . . . . . . . . . 8-56
MXGD (Output Max Graph Data) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-56
O (Return display channel reading) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57
OBACM (AC mod output polarity configuration) . . . . . . . . . . . . . . . . . 8-57
OBCH (BNC output port channel configuration) . . . . . . . . . . . . . . . . . 8-57
OBDSP (BNC analog output display stop value) . . . . . . . . . . . . . . . . 8-58
OBDST (BNC analog out display start value) . . . . . . . . . . . . . . . . . . . 8-58
OBMD (BNC output mode select) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-59
OBPL (BNC pass/fail pass level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-59
OBVSP (BNC analog output stop voltage scale) . . . . . . . . . . . . . . . . 8-60
OBVST (BNC analog output start voltage scale) . . . . . . . . . . . . . . . . 8-60
OBZL (BNC RF blanking output level when zeroing) . . . . . . . . . . . . . 8-60
OFFCLR (Clear an offset table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-60
OFFFIX Offset fixed value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-61
Contents-8 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
OFFTBL (Specify the table used to apply offsets to the sensor) . . . . 8-61
OFFTBU (Updates an offset table) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-62
OFFTYP (Offset type to use) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-63
OFFVAL (Sensor Offset Value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-63
OGBD (Output Graph Binary Data) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-63
OGD (Output Graph Data) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-64
OGSD (Output Valid Samples Array (Power vs. Time mode only)) . . 8-64
OI (Output device identification) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-64
ON (Output number of channel readings) . . . . . . . . . . . . . . . . . . . . . 8-65
OPMD (ML243xA operation mode) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-65
PRINT (Send details to the connected printer.) . . . . . . . . . . . . . . . . . 8-66
PRNSEL (Select the type of printer) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-66
RCD (Range Calibrator data request) . . . . . . . . . . . . . . . . . . . . . . . . 8-66
REL (Relative control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-67
RFCAL (Turn RF reference calibrator ON or OFF) . . . . . . . . . . . . . . 8-67
RGH (Range Hold Sensor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-67
RSBAUD (RS232 Baud Rate) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-68
RSMODE (RS232 Operating Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-68
SECURE (Secure system state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-68
SENMM (Sensor Measurement mode) . . . . . . . . . . . . . . . . . . . . . . . 8-69
SENMO (Universal Sensor Operation Mode) . . . . . . . . . . . . . . . . . . . 8-69
SENSTL (Set Sensor Settle Percentage) . . . . . . . . . . . . . . . . . . . . . . 8-70
SENTYP (Return sensor information) . . . . . . . . . . . . . . . . . . . . . . . . 8-70
SRCMOD (Source Sweep Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-70
SRCSPFRQ (Source Sweep Stop Frequency) . . . . . . . . . . . . . . . . . 8-70
SRCSPPWR (Source Sweep Stop Power) . . . . . . . . . . . . . . . . . . . . 8-71
SRCSTAT (Source Sweep mode status request) . . . . . . . . . . . . . . . 8-71
SRCSTFRQ (Source Sweep Start Frequency) . . . . . . . . . . . . . . . . . 8-71
SRCSTPWR (Source Sweep Start Power) . . . . . . . . . . . . . . . . . . . . 8-71
START (Initial startup self test command) . . . . . . . . . . . . . . . . . . . . . 8-72
STATUS (Status Message) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-73
STERR (Returns results of POST or *TST?) . . . . . . . . . . . . . . . . . . . 8-75
SYSLD (Load saved setup store over the GPIB) . . . . . . . . . . . . . . . . 8-75
SYSLNM (Saved set naming) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-76
SYSRD (Output the saved setup over the GPIB) . . . . . . . . . . . . . . . . 8-76
TEXT (User text command) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-77
TEXTS (User text display command) . . . . . . . . . . . . . . . . . . . . . . . . . 8-77
TR0 (Trigger hold mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-77
TR1 (Trigger immediate) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-78
TR2 (Trigger with a settling delay) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-78
TR3 Trigger free run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-79
TRGARM (Trigger arming) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-79
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-9
Table of Contents (Continued)
TRGDLY (Trigger sample delay) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-80
TRGGW (Set trigger gate width) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-80
TRGLVL (Set trigger level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-81
TRGMODE (Change trigger mode) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-81
TRGSRC (Set trigger source) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-82
TRGTYP (Set Trigger type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-82
TRGXTTL (Set external trigger edge type) . . . . . . . . . . . . . . . . . . . . . 8-83
VZERO (Zero the BNC input connector) . . . . . . . . . . . . . . . . . . . . . . 8-83
ZERO (Zero the selected sensor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-83
8-9 GPIB Emulation Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-84
Zeroing a Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-84
Sensor Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-84
Output Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-84
Contents-10 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
8-10 ML4803A Emulation Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-85
SRQs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-85
Status Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-85
Output Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-86
Unsupported Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-86
AVE (Sensor averaging setting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-87
CAL (Set the user cal factor value) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-87
CCA (Clear the calfactor value to zero). . . . . . . . . . . . . . . . . . . . . . . . 8-87
CDJ (Perform a CAL 0 dBm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-87
COF (Clear the offset value to zero) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-87
COS (Turn ON the 50 MHz, 0 dBm RF calibrator output) . . . . . . . . . . 8-87
CRF (Clear the reference value to zero) . . . . . . . . . . . . . . . . . . . . . . . 8-87
CST (Turn OFF the 50 MHz, 0 dBm RF calibrator output) . . . . . . . . . 8-87
DBM (Sets the display channel units to dBm) . . . . . . . . . . . . . . . . . . . 8-88
DBR (Sets display channel units to dB’s and takes the relative value) 8-88
EMUL (GPIB emulation mod) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-88
MCA (Set the cal factor value at the specified memory location in dBm)8-88
MCC (Clears the cal factor value at the specified memory location). . 8-89
MCO (Clears the offset value at the specified memory location) . . . . 8-89
MCQ (Clears the frequency value at the specified memory location) . 8-89
MCR (Clears the reference value at the specified memory location) . 8-89
MCT (Clears all the entries at the specified memory location) . . . . . . 8-89
MDI (Disable memory store setting and use) . . . . . . . . . . . . . . . . . . . 8-89
MEN (Enable setting of the memory stores) . . . . . . . . . . . . . . . . . . . . 8-89
MFG (Set the frequency value at the specified location in GHz). . . . . 8-90
MFM (Set the frequency value at the specified location in MHz) . . . . 8-90
MOF (Set the offset value at the specified location in dBm) . . . . . . . . 8-90
MRF (Set the reference value at the specified location in dBm) . . . . . 8-90
ODT (Output the current calibration factor, offset, and reference level)8-91
OFF (Set sensor offset value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-91
OI? (Request identity) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-91
OMR (Output a memory store set of data) . . . . . . . . . . . . . . . . . . . . . 8-92
OPW (Request for channel reading) . . . . . . . . . . . . . . . . . . . . . . . . . 8-92
REF (Set the reference value). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-95
RNG (Sensor measurement range hold). . . . . . . . . . . . . . . . . . . . . . . 8-95
SRQ (Turns on or off the SRQ on output data ready) . . . . . . . . . . . . . 8-95
STA (Restart averaging reading). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-95
WAT (Sets the display channel units to Watts) . . . . . . . . . . . . . . . . . . 8-95
ZAJ (Zero the sensor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-96
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-11
Table of Contents (Continued)
8-11 HP436A Emulation Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-97
+ (Disable cal factor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-97
– (Enable cal factor). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-97
1, 2, 3, 4, & 5 (Set sensor operating rang). . . . . . . . . . . . . . . . . . . . . . 8-97
9 (Auto rang) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-97
A (Wat). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-97
B (dB (rel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-98
C (dB (ref) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-98
D (dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-98
EMUL (Select emulation mod). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-98
H (Hold mod) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
I (Trigger without settling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
OI (Identificatio) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
R (Free run mod) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
T (Trigger with settling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
V (Free run mode with settling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
Z (Zero sensor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-100
Output Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-100
Contents-12 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
8-12 HP437B Emulation Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-102
*CLS (Clear GPIB status byte) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-103
*ESE (Set the Event Status register enable mask) . . . . . . . . . . . . . 8-103
*ESE? (Return Event status register enable mask). . . . . . . . . . . . . . 8-105
*ESR? (Event status register request). . . . . . . . . . . . . . . . . . . . . . . . 8-105
*RST (Reset Device) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-105
*SRE (Setup service request enable register). . . . . . . . . . . . . . . . . . 8-105
*SRE? (Return Service Request Enable register) . . . . . . . . . . . . . . . 8-105
*STB? (Return Status Byte register) . . . . . . . . . . . . . . . . . . . . . . . . . 8-106
*TST? (Self Test). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-106
@1 (Set SRE mask) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-106
CL (Cal Adjust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-107
CS (Clear all status byte). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-107
CT (Clear the cal factor table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-107
DA (Display All) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-107
DC (Duty Cycle state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-108
DD (Display disable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-108
DE (Display enable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-108
DF (Display disable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-108
DR (Set GPIB address) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-108
DY (Duty Cycle). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-109
EMUL (GPIB emulation mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-109
EN (Enter command). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-110
EX (Exit cal factor table mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-110
FA (Auto average) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-110
FH (average hold) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-111
FM (Set average value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-111
FR (Frequency of the input signal) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-111
GT (Set group trigger) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-112
ID (Return identification string) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-112
IDN? (HP437B identity request) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-112
KB (Calibration factor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-113
LG (Set log units). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-113
LH (Set high limit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-113
LL (Set low limit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-113
LM (limits check state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-114
LN (Set linear units). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-114
OC (Set calibrator state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-114
OD (Output the display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-114
OF (Offset state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-115
OI (Return identification string) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-115
OS (Set offset value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-115
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-13
Table of Contents (Continued)
PR (Preset the unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-115
RA (Auto Range) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-115
RC (Recall setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-116
RE (Set decimal point resolution) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-116
RF (Set the reference cal factor value for a table) . . . . . . . . . . . . . . . 8-116
RH (Range hold) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-116
RL (Relative mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-117
RM (Range hold set) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-117
RV (Service request mask value) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-117
SE (Select cal factor table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-117
SM (status message). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-118
ST (Store setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-119
SV (Save cal factor table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-119
TR0 (Trigger hold mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-119
TR1 (Trigger immediate) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-120
TR2 (Trigger with a settling delay). . . . . . . . . . . . . . . . . . . . . . . . . . . 8-120
TR3 (Trigger free run) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-120
ZE (Zero sensors) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-120
Contents-14 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
8-13 HP438A Emulation Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-121
?ID (HP Identity request) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-122
@1 (Set SRE mask) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-122
AD (Set display to A – B). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-122
AP (Set single sensor A display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-122
AR (Set display A / B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-122
BD (Set display B – A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-122
BP (Set single sensor B display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-123
BR (Set display B / A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-123
CL (Cal Adjust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-123
CS (Clear all status bytes). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-123
DA (Display All) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-123
DD (Display disable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-123
DE (Display enable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-124
DR (Set GPIB address) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-124
EMUL (GPIB emulation mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-124
FA (auto average) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-124
FH (average hold) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-125
FM (Set average value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-125
GT (Set group trigger) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-125
KB (Calibration factor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-126
LG (Set log units). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-126
LH (Set high limit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-126
LL (Set low limit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-126
LM (limits check state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-126
LN (Set linear units). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-127
OC (Set calibrator state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-127
OI (HP Identity request). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-127
OS (Set offset value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-127
PR (Preset the unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-128
RA (Auto Range) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-128
RC (Recall setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-128
RH (Range hold) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-128
RL (Relative mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-129
RM (Range hold set) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-129
RV (Service request mask value) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-129
SM (Status Message) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-130
ST (Store setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-130
TR0 (Trigger hold mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-131
TR1 (Trigger immediate) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-131
TR2 (Trigger with a settling delay). . . . . . . . . . . . . . . . . . . . . . . . . . . 8-131
TR3 (Trigger free run) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-131
ZE (Zero sensors) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-131
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-15
Table of Contents (Continued)
8-14 Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-132
Output Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-132
Get Graph Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-133
Status Register Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-134
488.2 General Send/Receive System . . . . . . . . . . . . . . . . . . . . . . . . 8-134
Binary Output Message Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . 8-136
Appendix A—Technical Support
A-1 Getting Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B—Specifications
B-1 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
B-2 System Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
B-3 System Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10
B-4 Calibration and Zero Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12
Appendix C—GPIB Quick Reference
C-1 ML24XXA Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
BNC Functional Group Commands . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
Calibration Functional Group Commands . . . . . . . . . . . . . . . . . . . . . . .C-1
Channel Functional Group Commands . . . . . . . . . . . . . . . . . . . . . . . .C-1
Data Output Functional Group Commands . . . . . . . . . . . . . . . . . . . . .C-2
Display Functional Group Commands . . . . . . . . . . . . . . . . . . . . . . . . . C-3
GPIB 488.2 Functional Group Commands . . . . . . . . . . . . . . . . . . . . . .C-3
GPIB Setup Functional Group Commands . . . . . . . . . . . . . . . . . . . . . .C-3
GPIB Trigger Functional Group Commands . . . . . . . . . . . . . . . . . . . . .C-4
Profile Setup Functional Group Commands . . . . . . . . . . . . . . . . . . . . .C-4
Sensor Functional Group Commands . . . . . . . . . . . . . . . . . . . . . . . . .C-5
System Functional Group Commands . . . . . . . . . . . . . . . . . . . . . . . . . C-6
Trigger Functional Group Commands . . . . . . . . . . . . . . . . . . . . . . . . .C-7
ML24XXA Native Mode Query Commands . . . . . . . . . . . . . . . . . . . . .C-8
C-2 ML4803A Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-12
ML4803A Emulation Mode Commands . . . . . . . . . . . . . . . . . . . . . . .C-12
C-3 HP436A Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-14
HP436A Emulation Mode Commands . . . . . . . . . . . . . . . . . . . . . . . .C-14
C-4 HP437B Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-15
HP437B Emulation Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-15
C-5 HP438A Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-16
HP438A Emulation Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-16
C-6 HP-IB Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-18
HP437B Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-18
HP438A Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-21
Contents-16 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Table of Contents (Continued)
Appendix D—Connector Care and Handling
D-1 Pin Depth Mating Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
D-2 Torquing Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
D-3 Mechanical Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
D-4 Cleaning Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3
ML2437A/38A OM/PM PN: 10585-00001 Rev. M Contents-17
Table of Contents (Continued)
Contents-18 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Chapter 1 — General Information
1-1 About this Manual
This manual provides installation and operational information for the ML2437A and
ML2438A Power Meters. All explanations in this manual apply equally to both units unless
otherwise stated. For simplicity, the term “ML243xA” is used to refer to both units.
1-2 Associated Documentation and Software
In addition to this manual, the following items are also available on the product disc shipped
with the power meter:
• Power Meters & Power Sensors Technical Data Sheet and Product Brochure
• PowerSuite Software and Quick Start Guide: PowerSuite is a PC application designed
to demonstrate the features and capabilities of the ML2437A/38A that are available
when interfacing to the device via a GPIB card or RS232 Serial port. PowerSuite is
written in Visual Basic 6.0 and the source code, included in the directory, can be used
or adapted to add extra features as required.
• ML2419x Range Calibrator Operation and Maintenance Manual
• Performance Verification and Uncertainty Spreadsheets
Updated software and related literature can be downloaded from the product page
Library tab:
http://www.anritsu.com/en-us/products-solutions/products/ml2437a.aspx
http://www.anritsu.com/en-us/products-solutions/products/ml2438a.aspx
1-3 Identification Number
The ML243xA ID number is affixed to the rear panel. Please use the complete ID number
when ordering parts or corresponding with the Anritsu Customer Service department.
1-4 Available Models
The following ML243xA Power Meters are available with either one or two sensor inputs and
are delivered with a 1.5 m sensor cable for each input.
Table 1-1. Model Numbers and Sensor Channels
Model Number Number of Sensor Channels
ML2437A Single Channel
ML2438A Dual Channel
Note
ML2437A/38A OM/PM PN: 10585-00001 Rev. M 1-1
The use of sensor cables greater than 10 meters in length is not recommended
when measuring pulses of less than 10 ms.
Available Options, Accessories, and Power Sensors General Information
1-5 Available Options, Accessories, and Power Sensors
Refer to the Anritsu Power Meters & Power Sensors Technical Data Sheet, PN: 11410-00423
for a complete listing of additional options and accessories, including power sensors available
for the ML243xA power meters.
1-2 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Chapter 2 — Installation
2-1 Initial Inspection
Inspect the shipping container for damage. If the container or cushioning material is
damaged, retain until the contents of the shipment have been checked against the packing
list and the instrument has been checked for mechanical and electrical operation. If the power
meter is damaged mechanically, notify your local sales representative or Anritsu Customer
Service Center. If either the shipping container is damaged or the cushioning material shows
signs of stress, notify the carrier as well as Anritsu. Retain the shipping materials for the
carrier's inspection.
2-2 Sensor Handling
The sensors are enclosed in a polycarbonate case to help prevent damage. The sensor
connectors, however, are exposed and are a critical part of the microwave instrument. Refer
to the MA24xxA Series Power Sensor manual (10585-00004) for detailed information on
proper connector care.
2-3 Power Requirements
The ML243xA Power Meter can be operated from either AC line power, external DC power, or
from the optional internal battery. The ML243xA Power Meter is intended as an Installation
(Overvoltage) Category II, Insulation Category I device. At power-on, the power meter will
perform a brief power-on self test (POST). If a POST error occurs, information and available
options are displayed on the screen. If the POST is successful, the instrument loads the last
used configuration, unless Secure mode has been selected.
AC Line Power
The ML243xA Power Meter can operate on AC input power of 85-264 V, 47-440 Hz, 40 VA
maximum. The power meter automatically configures itself for the voltage applied. The AC
line input is protected by an internal fuse.
DC Power
The ML243xA Power Meter can also operate from a nominal external 12-24 VDC input in the
absence of AC line power. DC line power is protected by a fuse mounted inside the unit, on the
main board. A grounding terminal is provided on the rear panel to ground the unit during
operation from a DC supply.
ML2437A/38A OM/PM PN: 10585-00001 Rev. M 2-1
Environmental Requirements Installation
Battery Power
The ML243xA Power Meter can be operated using the optional internal battery pack. During
battery operation, an icon is displayed on measurement screens indicating the state of charge.
When the remaining capacity reaches less than 10 %, the icon will flash, indicating that
charging will soon be required. When running from battery power, an estimate of typical-use
running time remaining can be viewed using the System menu. Note that, due to power
consumption considerations, GPIB and serial remote operation are not available when the
power meter is running from the battery.
The AUTO POWER OFF feature is also available through the System menu, and can be used
to automatically switch the unit to standby after a specified period of inactivity to save
battery power. The timer can be set for 10 to 240 minutes, and any key press will restart the
timer. This same feature will automatically switch the unit to standby when the battery is
fully discharged (in order to minimize the risk of over-discharge).
The ML243xA Power Meter uses a high-capacity Ni-MH battery. Over-discharge
Note
For optimum battery life, store the battery pack at -20 to +50 °C (-4 to +122 °F) for short
periods and -20 to +35 °C (-4 to +95 °F) for long term storage. The ML243xA Power Meter will
operate from AC or DC main power with this battery removed. This battery is not used for the
retention of nonvolatile memory functions. Refer to Battery Charging, Removal and
Replacement, for further information.
can result in a permanent loss of battery capacity of as much as 20 %. If the unit is
to be stored for an extended period (longer than one week), remove the optional
battery pack so as to preclude over-discharge.
Fuses
The ML243xA Power Meter AC and DC input lines are protected by internally mounted fuses.
These fuses should only be changed by qualified service personnel. Replace only with fuses of
the same type and rating (AC fuse is 2 A, 250 V, slow-blow; DC fuse is 3 A, 125 V, slow-blow).
Grounding
The ML243xA Power Meter must be properly grounded. Failure to ground the instrument
could be hazardous to operating personnel. The meter is supplied with a three-conductor
power cord. The instrument is properly grounded during AC line operation when the plug is
connected to a properly installed three-prong receptacle. A grounding terminal is provided on
the rear panel to ground the unit during operation from a DC supply.
2-4 Environmental Requirements
The ML243xA Power Meter is designed to operate within the temperature range of 0 to 50 °C
(32 to 122 °F) with a maximum humidity of 90 % at 40 °C (104 °F), non-condensing. Full
accuracy is specified at 5 to 35 °C (23 to 95 °F). Although not recommended, operation in
temperatures to -20 °C (-4 °F) is possible. At these temperatures the liquid crystal display
may exhibit excessively slow response. The soft sided carry case (part number D41310) and
optional front panel cover (PN: 2000-1535) can be used to help retain internally generated
heat and may improve response.
2-2 PN: 10585-00001 Rev. M ML2437A/38A OM/PM
Loading...