®
27
Multimeter
Users Manual
Mode d'Emploi
Bedienungs-Handbuch
Manuale d'Uso
Manual de Uso
For IEC 61010 CAT III Meters Only
October 1998 Rev.2, 12/03
© 1998-2003 Fluke Corporation. All rights reserved. Printed in U.S.A. All product names are trademarks of their respective companies.
LIMITED WARRANTY & LIMITATION OF LIABILITY
Each Fluke 20, 70, 80, 170 and 180 Series DMM will be free from defects in material and workmanship for its lifetime. As used herein, “lifetime” is defined as seven years after Fluke discontinues manufacturing the product, but the warranty period shall be at least ten years from the date of purchase. This warranty does not cover fuses, disposable batteries, damage from neglect, misuse, contamination, alteration, accident or abnormal conditions of operation or handling, including failures caused by use outside of the product’s specifications, or normal wear and tear of mechanical components. This warranty covers the original purchaser only and is not transferable.
For ten years from the date of purchase, this warranty also covers the LCD. Thereafter, for the lifetime of the DMM, Fluke will replace the LCD for a fee based on then current component acquisition costs.
To establish original ownership and prove date of purchase, please complete and return the registration card accompanying the product, or register your product on http://www.fluke.com. Fluke will, at its option, repair at no charge, replace or refund the purchase price of a defective product purchased through a Fluke authorized sales outlet and at the applicable international price. Fluke reserves the right to charge for importation costs of repair/replacement parts if the product purchased in one country is sent for repair elsewhere.
If the product is defective, contact your nearest Fluke authorized service center to obtain return authorization information, then send the product to that service center, with a description of the difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Fluke will pay return transportation for product repaired or replaced in-warranty. Before making any non-warranty repair, Fluke will estimate cost and obtain authorization, then invoice you for repair and return transportation.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY. AUTHORIZED RESELLERS ARE NOT AUTHORIZED TO EXTEND ANY DIFFERENT WARRANTY ON FLUKE’S BEHALF. Since some states do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages, this limitation of liability may not apply to you. If any provision of this warranty is held invalid or unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.
Fluke Corporation |
Fluke Europe B.V. |
P.O. Box 9090 |
P.O. Box 1186 |
Everett WA |
5602 B.D. Eindhoven |
98206-9090 |
The Netherlands |
Visit the Fluke website at: www.fluke.com |
|
Register your Meter at: register.fluke.com |
2/02 |
Table of Contents
Title |
Page |
Multimeter Safety........................................................................................................... |
1 |
Operating Features........................................................................................................ |
5 |
Applications ................................................................................................................... |
9 |
Voltage, AC/DC......................................................................................................... |
9 |
Current, AC/DC......................................................................................................... |
9 |
Resistance and Diode Test/Continuity...................................................................... |
10 |
Resistance Measurement..................................................................................... |
10 |
Diode Test and Continuity.................................................................................... |
10 |
Conductance............................................................................................................. |
11 |
Leakage Testing ....................................................................................................... |
11 |
Analog Bar Graph Application ....................................................................................... |
12 |
Using the Analog Bar Graph ..................................................................................... |
12 |
Specific Applications--Nulling.................................................................................... |
13 |
Specific Applications--Contact Bounce ..................................................................... |
13 |
Specific Applications--Checking Capacitors.............................................................. |
13 |
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Users Manual
Specific Applications--Noisy Resistance Measurements........................................... |
16 |
Operator Maintenance ................................................................................................... |
16 |
Battery Installation or Replacement .......................................................................... |
17 |
Fuse Test .................................................................................................................. |
19 |
Fuse Replacement .................................................................................................... |
19 |
General Maintenance ................................................................................................ |
20 |
Service ........................................................................................................................... |
22 |
Specifications................................................................................................................. |
23 |
ii
Multimeter Safety
Multimeter Safety
Read this information before using the meter. This meter complies with EN 61010-1:1993, ANSI/ISA S82.01-1994 and CAN/CSR C22.2 No. 1010.1-92 Overvoltage Category III. Use the meter only as specified in this Users Manual, otherwise the protection provided by the meter may be impaired.
•A Warning identifies conditions and actions that pose hazard(s) to the user.
•A Caution identifies conditions and actions that may damage the meter or the equipment under test.
W Warnings
To avoid possible electric shock or personal injury:
•Inspect the meter before using it. Check for cracks, missing plastic, or other possible damage to the case. Make sure that the insulation surrounding the connectors is intact.
•Inspect the test leads for damaged insulation, exposed metal, and continuity. Replace damaged test leads before using the meter.
•Do not use the meter if it operates abnormally. Protection may be impaired. When in doubt, have the meter serviced.
•Do not operate the meter around explosive gas, vapor or dust.
•Do not apply more than the rated voltage (1000 V) between terminals or between any terminal and earth ground. The rated voltage is marked on the meter.
•Before each use, verify the meter’s operation by measuring a known voltage.
•Use only specified replacement parts.
•Use caution when working above 30 V ac rms, 42 V ac peak, or 60 V dc. Such voltages pose a shock hazard.
•When using the probes, always place fingers behind the probe finger guards.
•Connect the common test lead before connecting the live test lead. When disconnecting test leads, disconnect the live test lead first.
•Make sure the battery door is secured before operating the meter.
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Users Manual
•Remove test leads from the meter before opening the battery door.
•Use only a properly installed, single 9 V battery to power the meter.
•Follow all equipment safety procedures.
•Check the meter’s fuses (see “Testing the Fuses”) before measuring current.
•Never touch the probe to a voltage source when the test leads are plugged into the 10 A or 40 mA input jacks.
•The use of makeshift fuses and the shortcircuiting of fuse holders is prohibited.
•To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator (M) appears.
•The meter is waterproof to a depth of 1 meter. Remove all surface water from the product including water around, within and under the rotary knob, input receptacles and buttons prior to connecting any voltages to the input.
International symbols used on the meter and in this manual are explained in Table 1.
2
Multimeter Safety
O
Table 1. International Electrical Symbols
OFF (power)
SWITCH POSITION
ON (POWER) SWITCH POSITION
AC-ALTERNATING CURRENT
GROUND
SEE EXPLANATION IN MANUAL
DOUBLE INSULATION
(Protection Class II)
DC-DIRECT CURRENT |
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FUSE |
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EITHER DC OR AC |
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BATTERY |
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Users Manual
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Table 2. Input Terminals and Limits |
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Function |
Input Terminals |
Min Display |
Max Display |
Maximum Input |
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Red Lead |
|
Black Lead |
Reading |
Reading |
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C |
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I |
VOD |
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COM |
0.001 V |
1000 V |
1000 V |
J |
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F |
VOD |
|
COM |
0.1 mV |
320.0 mV |
1000 V |
|
O |
VOD |
|
COM |
0.1 e |
32.00 Me |
1000 V |
||
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(nS) |
VOD |
|
COM |
0.01 nS |
32.00 nS |
1000 V |
||
S |
VOD |
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E |
0.001 V |
2.08 V |
1000 V |
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A |
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COM |
0.01 A |
20.00 A* |
11 A 1000 V Fast Fuse** |
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A |
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E |
U |
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COM |
0.01 mA |
320.0 mA |
44/100 A 1000 V Fast Fuse** |
M |
|
|
N |
U |
|
COM |
0.1 µA |
3200 µA |
44/100 A 1000 V Fast Fuse** |
*10A continuous, 20A overload for 30 seconds maximum **Fuse protected
4
Operating Features
Operating Features
The following features are keyed by number to the illustration inside the front cover.
A Digital Display
3200 count, liquid crystal display with automatic decimal point positioning. Updated two times per second. When the meter is first turned on, all display segments appear while the instrument performs a brief power-up self-test.
B Function Selector Rotary Switch
Turn to select any of 10 different functions, or OFF. Refer to the Specifications for available ranges and to Table 2 for input terminals and limits.
CVolts dc
JMillivolts dc
IVolts ac
FMillivolts ac
OOhms (resistance), also conductance (1/e) in nanosiemens (nS)
SContinuity or diode test
AMilliamps or amperes dc
MMicroamps dc
EMilliamps or amperes ac
NMicroamps ac
C TVolt, Ohms, Diode Test Input
Terminal
Input terminal used in conjunction with the volts, mV (ac or dc), ohms, or diode test position of the function selector rotary switch.
D COM Common Terminal
Common or return terminal used for all measurements.
E U Milliamp/Microamp Input Terminal
Input terminal used for current measurements up to 320 mA (ac or dc) with the function selector rotary switch in the mA or µA positions.
F A Amperes Input Terminal
Input terminal used for current measurements up to 10A continuous (20 A overload for 30 seconds) with the
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