Performance Tool W2971 User manual

Please read these instructions carefully and retain them for future use.
DIGITAL MULTI-METER
WITH AUTOMATIC RANGING
OWNER’S MANUAL
Item Number W2971
WARNING
It is the owner and/or operators’ responsibility to study all WARNINGS, operating,
and maintenance instructions contained on the product label and instruction manual
prior to operation of this product. The owner/operator shall retain product instructions
for future reference.
The owner and/or operator are responsible for maintenance, maintaining all decals
or warning labels and while in use, maintaining the unit in good working order. If the
owner and/or operator are not fluent in English, the product warnings and
instructions shall be read and discussed with the operators’ native language by the
purchaser/owner or his designee. Make sure that the operator comprehends its
contents. Safety information shall be emphasized and understood prior to usage.
The product shall be inspected per the operating instructions.
Users of this product must fully understand these instructions. Each person operating
this product must also be of sound mind and body and must not be under the
influence of any substance that might impair their vision, dexterity or judgment.
Protect yourself and others by observing all safety information.
Failure to comply with instructions could result in personal injury and/or property damage!
This manual provides all safety information, operation instruction, specifications and
maintenance for the meter, which is compact, handheld, and battery operated. This
instrument performs AC/DC voltage, AC/DC Current, Resistance, Audible Continuity,
Diode and Cable test, it is a 3 1/2 digits, 1999 counts auto ranging DMM. It has the
functions of polarity indication, data hold, back light, over range indication and
automatic power-off. It can be operated easily and is an ideal instrument tool. This
digital multimeter has been designed according to EN61010-1 oncoming electronic
measuring instruments with an over voltage category (CAT II 600V) and Pollution
degree 2.
SAFETY INFORMATION
WARNING:
To avoid possible electric shock or personal injury, and to avoid possible damage to
the Meter or to the equipment under test, adhere to the following rules:
1. Before using the Meter inspect the case. Do not use the Meter if it is damaged
or the case (or part of the case) is removed. Look for cracks or missing plastic. Pay
attention to the insulation around the connectors.
2. Inspect the test leads for damaged insulation or exposed metal. Check the test
leads for continuity.
3. Do not apply more than the rated voltage, as marked on the Meter, between the
terminals or between any terminal and grounding.
4. The rotary switch should be placed in the right position and no any changeover of
range shall be made during measurement is conducted to prevent damage of the Meter.
5. When the Meter working at an effective voltage over 60V in DC or 30V rms inAC,
special care should be taken for there is danger of electric shock.
6. Use the proper terminals, function, and range for your measurements.
7. Do not use or store the Meter in an environment of high temperature, humidity,
explosive, inflammable and strong magnetic field. The performance of the Meter may
deteriorate after dampened.
8. When using the test leads, keep your fingers behind the finger guards.
9. Replace the battery as soon as the battery indicator appears. With a low
battery, the Meter might produce false readings that can lead to electric shock and
personal injury.
10. Remove the connection between the testing leads and the circuit being tested,
and turn the Meter power off before opening the Meter case.
11. When servicing the Meter, use only the same model number or identical electrical
specifications replacement parts.
12. The internal circuit of the Meter shall not be altered at will to avoid damage of the
Meter and any accident.
13. Soft cloth and mild detergent should be used to clean the surface of the Meter
when servicing. No abrasive and solvent should be used to prevent the surface of the
Meter from corrosion, damage and accident.
14. The Meter is suitable for indoor use.
15. Turn the Meter power off when it is not in use and take out the battery when not
using for a long time. Constantly check the battery as it may leak when it has been
using for some time, replace the battery as soon as leaking appears. A leaking
battery will damage the Meter.
Electrical Symbols
DC (Direct Current) AC (Alternating Current)
DC or AC Low battery
Warning. Refer to the manual Earth ground
Dangerous voltage maybe present Fuse
Diode Continuity test
AUTO Auto range Double insulated
Display : LCD, 1999 counts updates 2/sec
LCD size : 46 x 24mm
Polarity Indication : “-” displayed automatically
Over-range Indication : “OL” displayed
Low Battery Indication : “ ” displayed
Range select : auto or manual
Operation Temperature : 0°C to 40°C, less than 80%RH
Storage Temperature : -10°C to 50°C, less than 85%RH
Battery Type : 1.5V x 2, AAA size
Dimension (H×W×D) : 150×70×22mm
Weight : Approx. 150g
GENERAL CHARACTERISTICS
+ -
SPECIFICATIONS
Accuracy is guaranteed for 1 year 23°C±5°C less than 80%RH
1. DC VOLTAGE (Auto ranging)
Range Resolution Accuracy
200mV 0.1mV ±(0.8% of rdg + 5dgts)
2V 1mV
20V 10mV ±(1% of rdg + 2dgts)
200V 100mV
600V 1V ±(1.2% of rdg + 5dgts)
Input Impedance: 10MΩ
Overload Protection: 600V DC/AC rms
Max. Input voltage: 600V DC
2. DC CURRENT
Range Resolution Accuracy
200µA 0.1µA
2000µA 1µA ±(0.8% of rdg + 5dgts)
20mA 10µA
200mA 100µA
10A 100mA ±(2.0% of rdg + 5dgts)
Overload Protection: F0.5A/600V fuse
Max. Input Current: 500mA
Voltage Drop: 200µA and 20mA ranges: 20mV
2000µA and 200mA ranges: 200mV
3. AC CURRENT
Range Resolution Accuracy
200µA 0.1µA
2000µA 1µA ±(1.0% of rdg + 5dgts)
20mA 10µA
200mA 100µA
10A 100mA ±(3.0% of rdg + 5dgts)
Overload Protection: F0.5A/600V fuse
Max. Input Current: 500mA
Voltage Drop: 200µA and 20mA ranges: 20mV
2000µA and 200mA ranges: 200mV
Frequency Range: 40Hz ~ 400Hz
Response: Average, calibrated in rms of sine wave
4. AC VOLTAGE (Auto ranging)
Range Resolution Accuracy
2V 1mV
20V 10mV ±(1.2% of rdg + 3dgts)
200V 100mV
600V 1V ±(1.2% of rdg + 8dgts)
Input Impedance: 10MΩ
Frequency Range: 40Hz ~ 400Hz
Overload Protection: 600V DC/AC rms
Response: Average, calibrated in rms of sine wave
Max. Input voltage: 600V AC rms
~
~
+ -
!
�

SPECIFICATIONS CONT.
5. Diode and Continuity
Range Introduction Remark
The approximate forward voltage Open circuit voltage: about 1.5V
drop will be displayed
The built-in buzzer will sound if the Open circuit voltage: about 0.5V
resistance is less than about 30Ω.
Overload Protection: 250V DC/AC rms
For continuity test: When the resistance is between 30Ω and 100Ω, the buzzer may sound
or may not sound. When the resistance is more than 100Ω, the buzzer won’t sound.
6. RESISTANCE (Auto Ranging)
Range Resolution Accuracy
200Ω 0.1Ω
2KΩ 1Ω
20KΩ 10Ω ±(1.5% of rdg + 3dgts)
200KΩ 100Ω
2MΩ 1KΩ
20MΩ 10KΩ
Open Circuit Voltage: about 0.25V
Overload Protection: 250V DC/AC rms
7.BATTERY TEST
Range Resolution Internal Resistance
12V 10mV 1.2KΩ
9V 10mV 900Ω
1.5V 1mV 3KΩ
Measuring Voltage
1) Connect the BLACK test lead to the “COM” jack and the RED to the “INPUT” jack.
2) Set the function switch to V or V range.
Select auto range or manual range with the “RANGE” button.
3) In manual range, if the voltage magnitude to be measured is unknown
beforehand, select the highest range.
4) Connect the test leads across the source or load to be measured.
5) Read LCD display. The polarity of the RED lead connection will be indicated
when making a DC measurement.
NOTE:
a. In small range, the meter may display an unstable reading when the test leads
have not been connected to the load to be measured. It is normal and will not
affect the measurements.
b. In manual range mode, when the meter shows the over range symbol “OL”, a
higher range must to be selected.
c. To avoid damage to the meter, don’t measure a voltage which exceeds 600Vdc
(for DC voltage measurement) or 600Vac (for AC voltage measurement).
Measuring Current
1) Connect the BLACK test lead to the “COM” jack.
2) Set the range switch to desired µA or mA range. If the current magnitude to be
measured is not known beforehand, set the ranges switch to the highest range
position and then reduce it range by range until satisfactory resolution is obtained.
3) Select DC current measurement or AC current measurement with the “SELECT” Button.
4) Select auto range or manual range with the “RANGE” button. In manual range, if the
current magnitude to be measured is not known beforehand, select the highest range.
5) Connect test leads in series with the circuit to be measured.
6) Read the reading on the display. For DC current measurement, the polarity of the red
test lead connection will be indicated as well.
NOTE: When the display shows the over range symbol “OL”, a higher range must be selected.
OPERATION
OPERATION CONT.
Measure Resistance
1) Connect the BLACK test lead to the “COM” jack and the RED to the “INPUT” jack
(Note: The polarity of the red test lead is positive “+”).
2) Set the range switch to Ω range
3) Select auto range or manual range with the “RANGE” button. In manual range, if
the current magnitude to be measured is not known beforehand, select the
highest range.
4) Connect the test leads across the load to be measured.
5) Read the reading on the display.
NOTE:
a. For resistance measurements >1MΩ, the meter may take a few seconds to
stabilize reading. This is normal for high-resistance measurement.
b. When the input is not connected, i.e. at open circuit, the symbol “OL” will be
displayed as an over range indicator.
c. Before measuring in-circuit resistance, be sure that the circuit under test has all
power removed and all capacitors are fully discharged.
Continuity Test
1) Connect the BLACK test lead to the “COM” jack and the RED to the “INPUT” jack
(Note: The polarity of the red test lead is positive “+”).
2) Set the range switch to range
3) Press the “SELECT” Button to select continuity measurement mode, and the
symbol “ ” will appear as an indicator.
4) Connect the test leads across the load to be measured.
5) If the circuit resistance is lower than about 30Ω, the built-in buzzer will sound.
Diode Test
1) Connect the BLACK test lead to the “COM” jack and the RED to the “INPUT” jack
(Note: The polarity of the red test lead is positive “+”).
2) Set the range switch to range
3) Press the “SELECT” Button to select continuity measurement mode, and the
symbol “ ” will appear as an indicator.
4) Connect the red test lead to the anode of the diode to be tested and the black
test lead to the cathode.
5) The meter will show the approximate forward voltage of the diode. If the
connections are reversed, “OL” will be shown on the display.
Battery Test
1) Red lead to ”VΩmA”, Black lead to ”COM”
2) RANGE switch to desired ”BATT” position.
3) Connect red test lead to the battery’s negative.
4) The display will read the battery’s voltage.
Auto Power Off
If you don’t operate the meter for about 15 minutes, it will turn off automatically. To turn
on it again, just rotate the range switch or press a button.
If you press the “SELECT” button and turns on meter, the automatic power-off function
will be disabled.
Battery Replacement
If the sign “ ” appear on the display, it indicates battery should be replaced. Remove
screws and open the back case, replace the exhausted battery with new batteries (Size
AAA, 1.5V x2 or equivalent).
Fuse Replacement
Fuse rarely needs replacement and is blown almost always as a result of operator’s
error. To replace the fuses, open the battery cover; replace the damaged fuse with a
new fuse of the specified ratings.
Reinstall the battery cover and lock this cover.
Disposal
If you intend to dispose of this article, then please keep in mind that many of its
components consist of valuable materials, which can be recycled. Please do not dispose
it in the garbage, but check with your local council for recycling facilities in your area.
LIMITED LIFETIME WARRANTY
PERFORMANCE TOOL extends only the following warranties, and
only to original retail purchasers. These warranties give specific legal
rights. Except where prohibited by local law, the law of the State of
Washington governs all warranties and all exclusions and limitations
of warranties and remedies. There may be other rights which vary
from state to state.
PERFORMANCE TOOL warrants the product to be free from defects
in materials and workmanship under normal use and service. A
defective product may be returned for a free replacement within 90
days from the date of purchase, provided that product is returned to
place of purchase immediately after discovery of defect. These
warranties shall be valid only when a sales receipt showing the date
of purchase accompanies the defective product being returned. These
warranties exclude blades, bits, punches, dies, bulbs, fuses, hoses,
and other consumables which must be replaced under normal use
and service. These warranties shall not apply to any product or part
which is used for a purpose for which it is not designed, or which has
been repaired or altered in any way so as to affect adversely its
performance or reliability, nor shall these warranties apply to any
product or part which has been subject to misuse, neglect, accident or
wear and tear incident to normal use and service.
PERFORMANCE TOOL does not authorize any other person to make
any warranty or to assume any liability in connection with its products.
Except for warranties of title and the limited express warranties set
forth above, PERFORMANCE TOOLmakes no express or implied
warranties of any kind with respect to its products. In particular,
PERFORMANCE TOOL makes no implied warranty of merchantability
and no implied warranty of fitness for any particular purpose, except
that for goods purchased primarily for personal, family or household
use and not for commercial or business use,
PERFORMANCE TOOL makes an implied warranty of merchantability
(and, if otherwise applicable, an implied warranty of fitness for a
particular purpose), but only for the particular qualities or
characteristics, and for the duration, expressly warranted above. The
laws on limitation of implied warranties may differ from state to state,
so the above limitations may not apply in all cases.
PERFORMANCE TOOL shall not be liable for consequential,
incidental or special damages resulting from or in any manner related
to any product, or to the design, use, or any inability to use the
product. The sole and exclusive remedy for a defective product or part
shall be the repair, or replacement thereof as provided above. The
laws on limitation of remedies or on consequential, incidental or
special damages may vary from state to state, so the above
limitations may not apply in all cases.