Tektronix Cdm250 Manuale utente

User Manual

CDM250

Digital Multimeter

070-6736-03

Tektronix products are covered by U.S. and foreign patents, issued and

pending. Information in this publication supercedes that in all previously

published material. Specifications and price change privileges reserved.

Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY

Tektronix warrants that this product will be free from defects in materials and

workmanship for a period of one (1) year from the date of shipment. If any such product

proves defective during this warranty period, Tektronix, at its option, either will repair the

defective product without charge for parts and labor, or will provide a replacement in

exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect

before the expiration of the warranty period and make suitable arrangements for the

performance of service. Customer shall be responsible for packaging and shipping the

defective product to the service center designated by Tektronix, with shipping charges

prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to

a location within the country in which the Tektronix service center is located. Customer

shall be responsible for paying all shipping charges, duties, taxes, and any other charges for

products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or

improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish

service under this warranty a) to repair damage resulting from attempts by personnel other

than Tektronix representatives to install, repair or service the product; b) to repair damage

resulting from improper use or connection to incompatible equipment; or c) to service a

product that has been modified or integrated with other products when the effect of such

modification or integration increases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS

PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR

IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED

WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR

PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE

DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY

PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.

TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY

INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS

ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

CDM250 User Manual i

Table of Contents

General Safety Summary iii. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Started 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparing the Digital Multimeter for Use 2. . . . . . . . . . . . . . . . .

Front Panel 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reference 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparations for Measurement 7. . . . . . . . . . . . . . . . . . . . . . . . . .

Measuring AC or DC Voltage 7. . . . . . . . . . . . . . . . . . . . . . . . . .

Measuring AC or DC Current 8. . . . . . . . . . . . . . . . . . . . . . . . . .

Measuring Resistance 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking Diodes 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix A: Specifications 11. . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix B: Maintenance 17. . . . . . . . . . . . . . . . . . . . . . . . . . .

Cleaning 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparing for Shipment 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

No Display with Power On 18. . . . . . . . . . . . . . . . . . . . . . . . .

CDM250 Does Not Read Current (2A) 18. . . . . . . . . . . . . . . .

Display On but CDM250 Not Displaying Reading 18. . . . . . .

Display On but CDM250 Does Not Read Current (10A) 19. .

Appendix C: Replaceable Parts 21. . . . . . . . . . . . . . . . . . . . . . .

Standard Accessories 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optional Accessories 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents

ii CDM250 User Manual

List of Tables

Table 1: General Characteristics 11. . . . . . . . . . . . . . . . . . . . . . . .

Table 2: Physical Characteristics 11. . . . . . . . . . . . . . . . . . . . . . .

Table 3: Environmental Characteristics 11. . . . . . . . . . . . . . . . . .

Table 4: Electrical Characteristics 12. . . . . . . . . . . . . . . . . . . . . .

Table 5: DC Volts Measurement Specifications 12. . . . . . . . . . . .

Table 6: AC Volts Measurement Specifications 13. . . . . . . . . . . .

Table 7: Direct Current Measurement Specifications 13. . . . . . . .

Table 8: Alternating Current Measurement Specifications 15. . . .

Table 9: Resistance Measurement Specifications 16. . . . . . . . . . .

Table 10: Standard Accessories 21. . . . . . . . . . . . . . . . . . . . . . . .

Table 11: Optional Accessories 21. . . . . . . . . . . . . . . . . . . . . . . .

Table 12: Accessory Power Cords 22. . . . . . . . . . . . . . . . . . . . . .

CDM250 User Manual iii

General Safety Summary

Review the following safety precautions to avoid injury and prevent

damage to this product or any products connected to it.

Injury Precautions

To avoid potential hazards, use the product only as specified.

Use Proper Power Cord

To avoid fire hazard, use only the power cord specified for this

product.

Avoid Electric Overload

To avoid electric shock or fire hazard, do not apply a voltage to a

terminal that is outside the range specified for that terminal.

Ground the Product

This product is grounded through the grounding conductor of the

power cord. To avoid electric shock, the grounding conductor must

be connected to earth ground. Before making connections to the

input or output terminals of the product, ensure that the product is

properly grounded.

Do Not Operate Without Covers

To avoid electric shock or fire hazard, do not operate this product

with covers or panels removed.

Use Proper Fuse

To avoid fire hazard, use only the fuse type and rating specified for

this product.

General Safety Summary

iv CDM250 User Manual

Do Not Operate in Wet/DampConditions

To avoid electric shock, do not operate this product in wet or damp

conditions.

Do Not Operate in Explosive Atmosphere

To avoid injury or fire hazard, do not operate this product in an

explosive atmosphere.

Product Damage Precautions

Use Proper Voltage Setting

Before applying power, ensure that the line selector is in the proper

position for the power source being used.

Provide Proper Ventilation

To prevent product overheating, provide proper ventilation.

Do Not Operate With SuspectedFailures

If you suspect there is damage to this product, have it inspected by

qualified service personnel.

Safety Terms and Symbols

Terms in This Manual

These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that

could result in injury or loss of life.

General Safety Summary

CDM250 User Manual v

CAUTION. Caution statements identify conditions or practices that

could result in damage to this product or other property.

Terms on the Product

These terms may appear on the product:

DANGER indicates an injury hazard immediately accessible as you

read the marking.

WARNING indicates an injury hazard not immediately accessible as

you read the marking.

CAUTION indicates a hazard to property including the product.

Symbols on the Product

The following symbols may appear on the product:

DANGER

High Voltage ProtectiveGround

(Earth)Terminal ATTENTION

Referto

Manual

Double

Insulated

Certifications and Compliances

CSA Certified Power Cords

CSA Certification includes the products and power cords appropriate

for use in the North America power network. All other power cords

supplied are approved for the country of use.

General Safety Summary

vi CDM250 User Manual

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