Draper Digital Multimeter Bedienungsanleitung
INSTRUCTIONS FOR
Digital
Multimeter
Stock No.52320 Part No.DMM7
This manual has been compiled by Draper Tools and is an integrated part of the product with which it is enclosed and
should be kept with it for future references.
This manual describes the purpose for which the product has been designed and contains all the necessary information
to ensure its correct and safe use. We recommend that this manual is read before any operation or, before performing
any kind of adjustment to the product and prior to any maintenance tasks. By following all the general safety instructions
contained in this manual, it will ensure both product and operator safety, together with longer life of the product itself.
All photographs and drawings in this manual are supplied by Draper Tools to help illustrate the operation of the product.
Whilst every effort has been made to ensure accuracy of information contained in this manual, the Draper Tools policy of
continuous improvement determines the right to make modifications without prior warning.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY TO ENSURE THE SAFE AND
EFFECTIVE USE OF THIS PRODUCT.
GENERAL INFORMATION
01/2005
DECLARATION OF CONFORMITY
CONTENTS
Contents/Declaration .................................................................................................................................. 1
Specification ............................................................................................................................................... 2
Guarantee ................................................................................................................................................. 3
Getting to Know Your Multimeter ............................................................................................................. 4-5
Assembly .................................................................................................................................................... 5
Operation and Use ...................................................................................................................................... 6
Maintenance .............................................................................................................................................. 7
We :
Draper Tools Ltd.,
Hursley Road,
Chandler’s Ford,
Eastleigh, Hampshire.
SO53 1YF.
England.
Declare under our sole responsibility that the product:
Stock No:- 52320.
Part No:- DMM7.
Description:- Digital Multimeter.
To which this declaration relates is in conformity with the following directive(s) 73/23/EEC, 93/68/EEC &
89/366/EEC.
With reference to: EN61010-1, EN61010-2-31, EN50081-1
& EN50082-1.
J.N. Draper
Managing Director 06/08/1997
- 1 -
- 2 -
SPECIFICATION
The Draper Tools policy of continuous improvement determines the right to change specification
without notice.
Stock No. ......................................................................................................................... 52320
Part No. ........................................................................................................................... DMM7
Battery type ..................................................................................................................... 1x12V
Dimension .......................................................................................................... 55x112x40mm
Weight ................................................................................................................................. 70g
- RESISTANCE
Accuracy
+/- 1.5% rdg +/- 4 dgts
Range
200
2000
20k
200k
2000k
reading = accuracy of the measurement circuit
digits = accuracy of the analogue to digital conversion
WARNING: Ensure the test leads are fully engaged prior to carrying out any measurements, to
avoid an electric shock.
- DC CURRENT Overload protection: 200mA/250V fuse.
Accuracy
+/- 2.0% rdg +/- 4 dgts
Range
2000µA
20mA
200mA
- AC VOLTAGE Input impedance: 450K , Input protection: 500V RMS,
Frequency Range: 40Hz-400Hz.
Accuracy
+/- 2.0% rdg +/- 5 dgts
Range
200V
500V
- DIODE CHECK Test Current: 1.6mA typical.
Accuracy
~
Range
3.2V DC Typical
- 3 -
GUARANTEE
Draper Tools have been carefully tested and inspected before shipment and are guaranteed to be
free from defective materials and workmanship for a period of 12 months from the date of
purchase except where tools are hired out when the guarantee period is ninety days from the
date of purchase.
Should the machine develop any fault, please return the complete tool to your nearest
authorized warranty repair agent or contact Draper Tools Limited, Chandler's Ford, Eastleigh,
Hampshire, SO53 1YF. England. Telephone: (023) 8026 6355.
If upon inspection it is found that the fault occurring is due to defective materials or
workmanship, repairs will be carried out free of charge. This guarantee does not apply to normal
wear and tear, nor does it cover any damage caused by misuse, careless or unsafe handling,
alterations, accident, or repairs attempted or made by any personnel other than the authorised
Draper warranty repair agent.
This guarantee applies in lieu of any other guarantee expressed or implied and variations of its
terms are not authorised.
Your Draper guarantee is not effective unless you can produce upon request a dated receipt or
invoice to verify your proof of purchase within the 12 month period.
Please note that this guarantee is an additional benefit and does not affect your statutory rights.
Draper Tools Limited.
- 4 -
GETTING TO KNOW YOUR MULTIMETER
(1) Function Selector.
(2) Power Switch.
(3) L.C.D. Screen.
(4) Probes.
(5) V, , mA (Voltage, Resistance, Amperage)
Jack Socket.
(6) Common Earth Jack Socket.
- UNPACKING: After removing the packing material, make sure the product is in perfect
condition and that there are no visible damaged parts. If in doubt, do not use the digital
multimeter and contact the dealer from whom it was purchased.
The packaging materials (plastic bags, polystyrene, etc.), must be disposed of in an
appropriate refuse collection container. These materials must not be left within the reach of
children as they are potential sources of danger.
(4)
(3)
(6)(5)
(1)
(2)
- 5 -
GETTING TO KNOW YOUR MULTIMETER
-OTHER METER MARKINGS
ASSEMBLY
Remove the rubber case. Turn the meter over and remove the screws holding the housing
together. Carefully part the front and back housing of the meter. Do not touch any of the internal
components. Insert the appropriate battery taking note of the polarity. Close the housing (do not
force) and resecure. The internal fuse can be replaced in the same manner.
To ensure an accurate reading, ensure the test probe are fully engaged.
Diode check.
Indicates that the meter battery voltage has dropped excessively.
Units of measuring current (AMPS).
Units of measuring voltage (VOLTS).
Units of measuring resistance (OHMS).
Caution.
Risk of electric shock.
10A
mA µA
VV
- 6 -
FIG.1
OPERATION AND USE
-WARNINGS: Each time before you use this analyser, inspect the test leads, connectors and
probes for damage, e.g. cracks or breaks in the insulation. Any defective leads should be
replaced immediately. If the value to be measured is not known, set the selector switch to the
highest range and reduce until a satisfactory reading is obtained.
- VOLTAGE MEASUREMENT:
1. Connect the red test lead to the ‘V/ /mA’ jack socket and the black lead to the ‘com’ jack
socket Ensure the leads are correctly plugged in.
2. Position the selector switch to the desired voltage range and switch the meter ‘ON’.
3. Connect the test leads to the circuit to be measured.
4. Turn on the power to the circuit to be measured, the voltage value should appear on the
digital display along with the voltage polarity (if reversed only).
-CURRENT MEASUREMENT (Fig.1.):
1. Connect the red test lead to the ‘V/ /mA’ jack socket and the black lead to the ‘com’ jack
socket (max 10A).
2. Position the selector switch to the desired amp range and switch the meter ‘ON’.
3. Open the circuit to be measured, and connect the test leads in series to bridge the gap.
4. Turn on the power to the circuit to be measured, the ‘current’ value should appear on the
digital display.
- RESISTANCE MEASUREMENT:
-WARNING: If the resistance to be measured is part of a circuit, turn off and disconnect the
power and discharge all capacitors before measurement
1. Connect the red test lead to the ‘V/ /mA’ jack socket and the black lead to the ‘com’
jack socket.
2. Position the selector switch to
the desired ohm range and
switch the meter ‘ON’.
3. Connect the test leads to the
circuit to be measured.
4. The resistance value should now
appear on the digital display.
- 7 -
MAINTENANCE
The fuse rarely needs replacing, and almost always a blown fuse is the result of an operator error.
-WARNING: If the resistance to be measured is part of a circuit, turn off and disconnect the
power and discharge all capacitors before measurement
If the meter battery is in need of replacement (see Assembly section) the ‘ ’ symbol will appear
on the display.
- 8 -
NOTES
- 9 -
NOTES
Andere Handbücher für Digital Multimeter
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