OWNER’S MANUAL
DIGITAL MULTIMETER
MRP #93-0187
SAFETY PRECAUTIONS/
WARNINGS
•This Digital Multimeter is intended for INDOOR USE ONLY.
•Pay close attention to 
WARNINGS stamped on the front and rear of the meter's case. These warnings, as well as all warnings and precautions used through out this manual, must be followed to avoid electric shock and/or personal injury.
•The RESPONSIBLE PARTY shall be made aware that, if the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
To prevent electrical shock and/or damage to the tester or the equipment under test, observe the following safety precautions:
•DO NOT apply more than the rated voltage, as marked on the meter, between terminals or between any terminal and earth ground.
•Use caution when working above 30V AC rms, 42 V peak, or 60 V DC. Such voltages pose a shock hazard.
•To avoid false readings that could lead to possible electric shock or personal
injury, replace the batteries as soon as the low battery indicator 
displays.
•Use ONLY those test leads or probes provided with the meter. DO NOT use thirdparty test leads or probes.
•Always inspect the multimeter, test leads and any other accessories for damage prior to every use. If any damage is found, do not use tester until repairs are done.
•Always consider electrical and electronic equipment to be ener-gized (live). Never assume any equipment is de-energized.
•Never ground yourself when taking electrical measurements. Isolate yourself from ground by using dry rubber insulating mats to cover all exposed/grounded metal. Stand on rubber mats and wear dry clothing.
SPECIFICATIONS
GENERAL SPECIFICATIONS AND FEATURES
•3-½ digit LCD display (maximum reading of 2000)
•Manual range control
•Automatic negative (-) polarity indication
•Automatic zero adjustment
•Over range indicator (except 10 A function). Displays "1" on LCD
• Low battery indicator. Displays battery symbol |
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•Safety standard: CE EMC/LVD. The meter is up to the standards of IEC1010 Pollution Degree 2, over voltage Category 2 (signifies protection against transient impulses at the local level mains electrical supply).
•Equipment marked 
is protected throughout by Double or Reinforced Insulation.
•Operating environment:
Temperature - 32° to 104° F. (0° C to 40° C)
Humidity - Less than 80% relative humidity (non-condensing) Altitude - up to 6562 ft (2000 meters)
•Storage environment:
Temperature - 4° to 140° F (- 20° to 60° C)
Humidity - Less than 90% relative humidity (non-condensing)
•Power Supply: One 9-volt (6F22) battery
•Fuse: 315mA/250V 5X20 mm (Radio Shack, GMA/217 series; #270-1046) fuse
•Dimensions:
Height - 5.50 in. (139 mm) Width - 3.50 in. (89 mm) Depth - 1.25 in. (32 mm)
•Weight (including batteries): approximately 5.7 oz (170 g)
ELECTRICAL SPECIFICATIONS
Accuracy of specifications in the following tables are based on an operating temperature of 64°F to 82°F (18°C to 28°C) and a relative humidity of less than 75%.
Maximum voltage from V ma socket to COM socket is 500V AC/DC; from COM socket to ground is 300V AC/DC.
DC VOLTS
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Range |
Resolution |
Accuracy |
Overload |
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Protection |
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200mV |
100μV |
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230 Vrms |
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2V |
1mV |
±(0.8% of reading |
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20V |
10mV |
+ 5 digits) |
500V DC |
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200V |
100mV |
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or AC |
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500V |
1V |
±(0.8% of reading |
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+ 5 digits |
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Input impedance: 10MΩ for all ranges. |
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RESISTANCE (OHMS) |
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Range |
Resolution |
Accuracy |
Overload |
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Protection |
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200Ω |
0.1Ω |
±(1% of reading |
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2KΩ |
1Ω |
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+ 5 digits) |
250V DC/AC RMS |
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20KΩ |
10Ω |
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200KΩ |
100Ω |
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20M Ω |
10K Ω |
±(2% of reading |
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+ 5 digits) |
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Open Circuit Voltage: Approximately 3V |
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DIODE TEST |
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Function |
Range |
Resolution |
Accuracy |
Overload |
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Protection |
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Diode test |
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1mV |
0.5 ~ 0.8V |
250V |
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DC/AC |
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RMS |
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Open Circuit Voltage: Approximately 2.8V |
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Forward Voltage Drop: Approximately 1mA |
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DC AMPS |
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Range |
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Resolution |
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Overload |
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Protection |
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2000μA |
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1μA |
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20mA |
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10μA |
±(1.5% of reading |
0.315A/250V fuse |
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200mA |
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100μA |
+ 5 digits) |
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10A |
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10mA |
±(2% of reading |
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Non-Protected |
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+ 5 digits) |
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Measuring time is equal to or less than 15 seconds and time |
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interval is equal to or over 15 minutes. |
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BATTERY TEST |
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Range |
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Resolution |
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Overload Protection |
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1.5V |
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10mV |
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0.315A/250V fuse |
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9V |
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AC VOLTS |
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Overload |
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Range |
Resolution |
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Accuracy |
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Protection |
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200V |
100mV |
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±(1.2% of reading |
500V DC or AC |
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+ 10 digits) |
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500V |
1V |
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Frequency: 40-400Hz |
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TESTING PROCEDURES
A. AC/DC VOLTAGE MEASUREMENT
WARNING 
To avoid possible electric shock, instrument damage and/or equipment damage, DO NOT attempt to measure voltages ABOVE 500V AC/DC or take measurements if the voltage is unknown. 500V AC/DC between the COM and V jacks is the maximum voltage that this instrument is designed to measure. The "COM" terminal potential should not exceed 300V AC/DC measured to ground.
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- 2 - |
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