Tektronix 7116-MWS Instruction Manual

Model 7 116~MWS

Microwave Switch System

Instruction

Manual

Contains Operating and Servicing Information

WARRANTY

Keithley Instruments, Inc. warrants this product lo he free from deCects in material and workmanship for a period of I year from date of shipment.

Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable batteries, diskettes, and documentation.

During the Wmnty period, we will, at our option, cithcr repair or rcplacc any product that proves to be defective.

To exercise this warranty, write or call your local Keithley representative, or contact Kcithlcy headquwtcrs in Cleveland, Ohio. You will be given prompt assistance and return instructions. Send the product, transportation prepaid, to the indicated service facility. Repairs will be made and the product returned, transportation prepaid. Repaired or replaced products arc warranted Coor the balance of the original warranty period, or at least 90 days.

LIMITATION OF WARRANTY

This warranty does not apply to defects resulting from product modilication without Keithley’s express written consent, or misuse of any product or part. This warranty also does not apply to fuses, software, non-rechargeable batteries, damage from battery leakage, or problems arising from normal wew or failure to follow instructions.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES.

NEITHER KEITHLEY INSTRUMENTS, INC. NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUeNTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES. SUCH EXCLUDED DAMAGES SHALL INCLUDE, BUT ARE NOT LIMITED TO: COSTS OF REMOVAL AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON, OR DAMAGE TO PROPERTY,

Keithley Instruments, Inc. * 28775 Aurora Road - Cleveland, OH 44139 * 440-248-0400 *Fax: 440-248-6168 * http://www.keithley.com

Model 7116-MWS 16-Channel Microwave Switch System

Instruction Manual

01996, Keithley Instruments, Inc.

Cleveland, Ohio, U.S.A.

Third Printing, July 1998

Document Number: 7116MWS-901-01 Rev. C

Manual Print History

The print history shown below lists the printing dates of all Revisions and Addenda created toor this manual. The Revision Level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which are released between Revisions, contain important change inkmnation that the user should incorporate immcdiatcly into the manual. Addenda are numbered sequentially. When a new Revision is crcatcd, all Addenda associated with the previous Revision of the manual we incorporated into the new Revision of the manual. Each new Revision includes a revised copy oi this print history page.

Safety Precautions

The following safety precautions should bc observed before using this product and any associated instrumentation. Although some instruments and acccssorics would normally be used with non-hazardous voltages, there are situations where hazardous conditions may bc prcscnt.

This product is intended for USC by qualified personnel who recognize shock hazards and arc familiar with the safety precautions required to avoid possible injury. Read tbc operating infoarmation

carefully beforc using the product.

The types of product users are:

Responsible body is the individual OT group responsible for the use and maintenance of equipment. and for ensuring that operators are adequately uained.

Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the instrument. They must he prolected from electric shock and contact with hazardous live circuits.

Maintenance personnel perform routine procedures on the product to keep it operating, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are described in the manual. The procedures explicitly state if the operator may perform them. Otherwise, they should he performed only by service perS”““el.

Service

personnel

safe instatIations and repairs of products. Only properly trained service personnel may perform installation and service procedures.

Exercise extreme caution when a shock hazard is present. Lethal voltage may he present on cable connector jacks or test fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS, 42.4V peak,

or 60VDC are present. A good safety practice is to expect

are trained to work on live circuits, and perform

that hazardous voltage is present in any unknown circuit before measuring.

Users of this product most he protected from electric shock at all Limes. The responsihlc body nest ensue thal users are prevented access and/or insulated from every connectloo point. In some cases, connections must bc exposed to potential human contact. Product UXTS in these circumstances most be trained to prolect themselves from the risk of electric shock. If the circuit is capable of operating

at or above 1000 volts, no conductive part of the circuit may he exposed.

As described in the International Electrotechnical Commission (IEC!) Standard IEC 664, digital multimeter measuring circuits (e.g., Keitbley Models 175A. 199,2000,2OUl, 2002, and 2010) arc Installation Category II. All other instruments’ signal terminals are Installation Category I and must not be connected to mains.

Do not connect switching cards directly to unlimited power circuits. They are intended to he used with impedance limited sources.

NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault torrent and voltage to the card.

Before operating an instrument, make sore the line cord is connect-

ed to a properly grounded power receptacle. Inspect the connecting

cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.

For maximum safety, do not touch the product, test cables, 01 any other instroments while power is applied to the circuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.

Do not touch any object that could provide a torrent path to the common side of the circuit under lest or power line (earth) ground. Always make measurements with dry hands while standing on a

dry, insulated surface capable of withstanding the voltage being measured.

Do not exceed the maximum signal levels of the instruments and accessories, as dcfincd in the specilications and upcrating information, and as shown on tbc instrument or test fixture panels, or switching card.

When fuses are used in a product, replace with same type and rating for continued protection against fire hazard.

Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth ground connections.

If you arc using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires tbc USC of a lid interlock.

Ifa@ screw is prcscnt, connect it to safety earth ground using the wire recommended in the user documentation.

The A symbol on an instrument indicates that the user should rcfer to the operating instructions located in the manual.

Then sure 1000 volts or more, including tbc combined effect of normal and common mode voltages. USC standard safety precautions to avoid personal contact with these voltages.

The WARNING heading in a manual explains dangers that might result in personal injury or death. Always read the associated information very carefully before performing the indicated procedure.

symbol on an instrument shows that it can sowcc or mea-

lnslrumcntation and accessories shall not be connected to humans. Before performing any maintenance, disconnect the line cord and

all test cables. ‘To maintain protection from electric shock and fix, rcplacemcnt

components in mains circuits, including the power transformer, test leads, and input jacks, must be purchased from Kcithley Instrw merits. Standard fuses, with applicable national saCety approvals, may be used if the rating and type are the same. Other components that are not safety related may be purchased from other suppliers as long as they are equivalent to the original component. (Note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product.) If you are unsure about the applicability of a replacement component, call technical support for information.

To clean the instrument, use a damp cloth or mild, water based cleaner. Clean the exterior of the instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument.

The CAUTION heading in a manual explains hazards that could damage the instrument. Such damage may invalidate the warranty.

1 Installation

Introduction

7116.MWS installation instructions Parts list Rack preparation System installation System earth ground installation Semi-rigid coax cable installation

Operation

Introduction ...................

Operating instructions ...........

7020-MWS configuration ........

3 Service

Introduction .._....._....

Troubleshooting

Troubleshooting equipment Troubleshooting procedure

Ordering information Factory service Engineering drawings

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2-1 2-2 2-3

3-l 3-l 3-i 3-l 3-2 3-2 3-2

+ 16 hidden pages

Tektronix 7116-MWS Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety Precautions

Table of Contents