Owner's Manual Manual Ranging Multimeter Model No. 82337 • Safety CAUTION: Read, understand and • Operation follow Safety Rules and Operating • Maintenance Instructions in this manual before using this product. • Español © Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
TABLE OF CONTENTS Warranty Page 3 Safety Instructions Safety Symbols Control and Jacks Symbols and Annunciators Specifications Battery Installation Operating Instructions DC Voltage Measurements AC Voltage Measurements DC Current Measurements AC Current Measurements Resistance Measurements Continuity Measurements Diode Test Temperature Measurements Display Backlight Battery Check Data Hold...
ONE YEAR FULL WARRANTY ONE YEAR FULL WARRANTY ON CRAFTSMAN PROFESSIONAL MULTIMETER If this CRAFTSMAN Professional Multimeter fails to give complete satisfaction within one year from the date of purchase, RETURN IT TO THE NEAREST SEARS STORE OR OTHER CRAFTSMAN OUTLET IN THE UNITED STATES, and Sears will replace it, free of charge.
SAFETY INSTRUCTIONS This meter has been designed for safe use, but must be operated with caution. The rules listed below must be carefully followed for safe operation. NEVER apply voltage or current to the meter that exceeds the specified maximum: Input Limits Function Maximum Input...
SAFETY SYMBOLS This symbol adjacent to another symbol, terminal or operating device indicates that the operator must refer to an explanation in the Operating Instructions to avoid personal injury or damage to the meter. This WARNING symbol indicates a potentially WARNING hazardous situation, which if not avoided, could result in death or serious injury.
CONTROLS AND JACKS 1. Rubber holster 2. 2000 count LCD display 3. Degrees F button 4. Degrees C button 5. Function switch 6. mA, uA and A input jacks 7. COM input jack 8. Positive input jack 9. Battery check button 10.
SPECIFICATIONS Resolution Function Range Accuracy DC Voltage 200mV 0.1mV ±(0.3% reading + 2 digits) (V DC) 0.001V ±(0.5% reading + 2 digits) 200V 0.1V 600V ±(0.8% reading + 2 digits) AC Voltage 50 to 400Hz 400Hz to 1kHz (V AC) 0.001V ±(1.0% reading ±(2.0% reading...
Diode Test Test current of 1mA maximum, open circuit voltage 2.8V DC typical Continuity Check Audible signal will sound if the resistance is less than approximately 150 Input Impedance AC Response Average responding ACV Bandwidth 50Hz to 1kHz DCA voltage drop 200mV Display digit, 2000 count LCD, 0.9”...
BATTERY INSTALLATION WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery cover. 1. Disconnect the test leads from the meter. 2. Remove the rear battery cover by removing the two screws using a Phillips head screwdriver.
OPERATING INSTRUCTIONS WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and should be measured with great care. 1. ALWAYS turn the function switch to the OFF position when the meter is not in use. 2. If “1 ” appears in the display during a measurement, the value exceeds the range you have selected.
AC VOLTAGE MEASUREMENTS WARNING: Risk of Electrocution. The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances because the contacts are recessed deep in the outlets. As a result, the reading may show 0 volts when the outlet actually has voltage on it.
DC CURRENT MEASUREMENTS CAUTION: Do not make current measurements on the 20A scale for longer than 30 seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads. 1. Insert the black test lead banana plug into the negative (COM) jack.
AC CURRENT MEASUREMENTS CAUTION: Do not make current measurements on the 20A scale for longer than 30 seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads. 1. Insert the black test lead banana plug into the negative (COM) jack.
RESISTANCE MEASUREMENTS WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements. Remove the batteries and unplug the line cords. 1. Set the function switch to the highest position. 2.
CONTINUITY CHECK WARNING: To avoid electric shock, never measure continuity on circuits or wires that have voltage on them. 1. Set the function switch to the position. 2. Insert the black lead banana plug into the negative (COM) jack. Insert the red test lead banana plug into the positive ( ) jack.
TEMPERATURE MEASUREMENTS 1. Set the function switch to the TEMP position. 2. Insert the Temperature Probe into the Temperature Socket, making sure to observe the correct polarity. 3. Press the ºF or ºC button for the desired units. 4. Touch the Temperature Probe head to the part whose temperature you wish to measure.
DISPLAY BACKLIGHT Press the button to turn on the display backlight function. The backlight will automatically turn off after 15 seconds. BATTERY CHECK CHECK function tests the condition of the 9V battery. Set the function switch to the 200VDC range and press the CHECK button.
MAINTENANCE WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the back cover or the battery cover. WARNING: To avoid electric shock, do not operate your meter until the battery cover is in place and fastened securely. This multimeter is designed to provide years of dependable service, if the following care instructions are performed: 1.
BATTERY REPLACEMENT WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery cover. 1. When the battery becomes exhausted or drops below the operating voltage, “ ” will appear in the left-hand side of the LCD display.
6. Remove the rear cover. 7. Lift the center circuit board straight up from the connectors to gain access to the fuse holders. 8. Gently remove the old fuse and install the new fuse into the holder. 9. Always use a fuse of the proper size and value (0.2A/250V fast blow for the 200mA range, 20A/250V fast blow for the 20A range).
SERVICE AND PARTS Item Number Description 82376 Fuse kit 93894 9V battery 82398 Set of black and red Test Leads 82337-D Replacement battery cover 82337-C Front cover 82337-CS Rear cover screws 82377 Thermocouple probe For replacement parts shipped directly to your home Call 9 am –...