Owner's Manual Manual Ranging Multimeter Model No. 82337 CAUTION: Read, understand and follow Safety Rules and Operating Instructions in this manual before using this product. • Safety • Operation • Maintenance • Español © Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. www.craftsman.
TABLE OF CONTENTS Warranty Page 3 Safety Instructions 4 Safety Symbols 5 Control and Jacks 6 Symbols and Annunciators 6 Specifications 7 Battery Installation 9 Operating Instructions 10 DC Voltage Measurements 10 AC Voltage Measurements 11 DC Current Measurements 12 AC Current Measurements 13 Resistance Measurements 14 Continuity Measurements 15 Diode Test 15 Temperature Measurements 16 Display Backlight 17 Battery Check 17 Data Hold 17 Auto Power Off 17 Low Battery I
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. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Sears, Roebuck and Co., Dept.
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. 1.
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. WARNING This WARNING symbol indicates a potentially hazardous situation, which if not avoided, could result in death or serious injury. CAUTION This CAUTION symbol indicates a potentially hazardous situation, which if not avoided, may result damage to the product.
CONTROLS AND JACKS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Rubber holster 2000 count LCD display Degrees F button Degrees C button Function switch mA, uA and A input jacks COM input jack Positive input jack Battery check button Hold button Backlight button Note: Tilt stand and battery compartment are on rear of unit.
SPECIFICATIONS Function DC Voltage (V DC) AC Voltage (V AC) Range 200mV 2V 200V 600V 2V 200V 600V DC Current (A DC) AC Current (A AC) 200µA 200mA 20A 200mA 20A Resistance 200! 2000! 20k! 200k! 20M! Temperature -4 to 1382ºF -20 to 750ºC Resolution Accuracy 0.1mV ±(0.3% reading + 2 digits) 0.001V ±(0.5% reading + 2 digits) 0.1V 1V ±(0.8% reading + 2 digits) 50 to 400Hz 400Hz to 1kHz 0.001V ±(1.0% reading ±(2.0% reading +6 digits + 8 digits 0.1V ±(1.5% reading ±(2.5% reading +6 digits +8 digits 1V ±(2.
Diode Test Continuity Check Input Impedance AC Response ACV Bandwidth DCA voltage drop Display Auto-Power Off Overrange indication Polarity Measurement Rate Low Battery Indication Battery Fuses Operating Temperature Storage Temperature Operating Humidity Storage Humidity Operating Altitude Weight Size Safety Test current of 1mA maximum, open circuit voltage 2.
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. 3. Insert the battery into battery clips, observing the correct polarity. 4. Put the battery cover back in place and secure with the two screws.
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. Change to a higher range. NOTE: On some low AC and DC voltage ranges, with the test leads not connected to a device, the display may show a random, changing reading.
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. Make sure the probe tips are touching the metal contacts inside the outlet before assuming that no voltage is present. CAUTION: Do not measure AC voltages if a motor on the circuit is being switched ON or OFF.
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. 2. For current measurements up to 200!A DC, set the function switch to the 200!A DC position and insert the red test lead banana plug into the (uA/mA) jack. 3.
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. 2. For current measurements up to 200mA AC, set the function switch to the highest 200mA AC position and insert the red test lead banana plug into the (mA) jack. 3.
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. Insert the black test lead banana plug into the negative (COM) jack. Insert the red test lead banana plug into the positive (!" jack. 3. Touch the test probe tips across the circuit or part under test.
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. 3. Touch the test probe tips to the circuit or wire you wish to check. 4. If the resistance is less than approximately 30!, the audible signal will sound. If the circuit is open, the display will indicate “1”.
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. Keep the probe touching the part under test until the reading stabilizes. 5. Read the temperature in the display. Note: The temperature probe is fitted with a type K mini connector.
DISPLAY BACKLIGHT Press the button to turn on the display backlight function. The backlight will automatically turn off after 15 seconds. BATTERY CHECK The CHECK function tests the condition of the 9V battery. Set the function switch to the 200VDC range and press the CHECK button. If the reading is less than 8.5, battery replacement is recommended. DATA HOLD The hold function freezes the reading in the display. Press the HOLD key momentarily to activate or to exit the hold function.
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. KEEP THE METER DRY. If it gets wet, wipe it off. 2. USE AND STORE THE METER IN NORMAL TEMPERATURES.
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. The battery should be replaced. 2. See the Battery Installation section of this manual. 3. Dispose of the old battery properly.
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). 10. Align the center board with the connectors and gently press into place. 11. Replace and secure the rear cover, battery and battery cover and screws.
TROUBLESHOOTING There may be times when your meter does not operate properly. Here are some common problems that you may have and some easy solutions to them. Meter Does Not Operate: 1. Always read all the instructions in this manual before use. 2. Check to be sure the battery is properly installed. 3. Check to be sure the battery is good. 4. If the battery is good and the meter still doesn’t operate, check to be sure that both ends of the fuse are properly installed.
