Craftsman 82345 Manual Ranging MultiMeter User Manual

Craftsman 82345 Manual Ranging MultiMeter

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. NEVER apply voltage or current to the meter that exceeds the specified maximum:
   

   Input Protection Limits
   Function	Maximum Input
   V DC or V AC	600V AC and DC
   mA DC	200mA DC
   A DC	10A DC (for 15 seconds max. every 15 minutes)
   Resistance, Diode Test, Continuity	500V DC/AC

2. USE EXTREME CAUTION when working with high voltages.
3. DO NOT measure voltage if the voltage on the “COM” input jack exceeds 600V above earth ground.
4. NEVER connect the meter leads across a voltage source while the function switch is in the current, resistance, or diode mode. Doing so can damage the meter.
5. ALWAYS discharge filter capacitors in power supplies and disconnect the power when making resistance or diode tests.
6. ALWAYS turn off the power and disconnect test leads before opening the covers to replace the fuse or battery.
7. NEVER operate the meter unless the back cover is in place and fastened securely.
8. If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

CONTROLS AND JACKS

1. LCD Display
2. Hold push-button
3. Rotary function dial
4. Test lead jack for voltage, milli-amp, resistance, and temperature
5. Test lead jack for amps
6. COM test lead jack

Note: Tilt stand and battery access are on the rear of the unit.

SYMBOLS AND ANNUNCIATORS

SPECIFICATIONS

NOTES:

Accuracy specifications consist of two elements:

• (% reading) – This is the accuracy of the measurement circuit.
• (+ digits) – This is the accuracy of the analog-to-digital converter.

Accuracy is stated at 65oF to 83oF (18oC to 28oC) and less than 75% RH.

• 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 <40! ” 5!
• Temperature sensor Requires type K thermocouple
• Input Impedance 10MΩ (VDC) and 4.5MΩ (VAC)
• Display 1999 count LCD
• Overrange “1 or -1” is displayed
• Polarity Automatic (no indication for positive polarity); Minus (-) sign for negative
  polarity.
• Measurement Rate 3 times per second, nominal
• Low Battery “” is displayed if the battery voltage drops below the operating voltage
• Battery Requires one 9V battery (NEDA 1604 or equivalent)
• Fuses mA range; 250mA/250V fast blow 10A range, no protection
• Operating Temp 32oF to 104oF (0oC to 40oC)
• Storage Temp -4oF to 140oF (-20oC to 60oC)
• Relative Humidity Maximum relative humidity is 80% for temperatures up to 31°C decreasing linearly to 50% relative humidity at 40°C.
• Operating Altitude is 7000ft (2000 meters) maximum.
• Weight 5.4 oz. (153g).
• Size 5.43” x 2.83” x 1.5” (138mm x 72mm x 38mm)
• Approvals UL, CE
• Safety This meter is intended for indoor use and protected, against users, by double insulation per EN61010-1 and IEC61010-1 2nd Edition (2001) to CAT II 600V; Pollution Degree 2. The meter
  also meets UL 61010-1, Second Edition (2004), CAN/CSA C22.2 No. 61010-1, Second Edition (2004), and UL 61010B- 2-031, First Edition (2003)

BATTERY INSTALLATION

1. Disconnect the test leads from the meter.
2. Remove the rubber holster (if in place).
3. Remove the two screws securing the rear cover using a Phillips head screwdriver.
4. Lift the cover off and replace the battery observing the correct polarity.
5. Insert the new battery into the battery holder.

NOTE: If your meter does not work properly, check the fuses and battery to make sure that they are still good and that they are properly inserted.

OPERATING INSTRUCTIONS

1. ALWAYS turn the function switch to the OFF position when the meter is not in use.
2. Press the HOLD button to freeze a displayed reading

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. This is normal and is caused by the high-input sensitivity. The reading will stabilize and give a proper measurement when connected to a circuit.

DC VOLTAGE MEASUREMENTS

1. Set the function switch to the highest V DC position.
2. Insert the black test lead banana plug into the negative (COM) jack. Insert the red test lead banana plug into the positive (V) jack.
3. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip to the positive side of the circuit.
4. Read the voltage in the display. Reset the function switch to successively lower V DC positions to obtain a higher resolution reading. The display will indicate the proper decimal point and value. If the polarity is reversed, the display will show (-) minus before the value.

AC VOLTAGE MEASUREMENTS

1. Set the function switch to the highest V AC position.
2. Insert the black test lead banana plug into the negative (COM) jack. Insert red test lead banana plug into the positive (V) jack.
3. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip to the positive side of the circuit.
4. Read the voltage in the display. Reset the function switch to successively lower V AC positions to obtain a higher resolution reading. The display will indicate the proper decimal point and value.

DC CURRENT MEASUREMENTS

1. Insert the black test lead banana plug into the negative (COM) jack.
2. For current measurements up to 200mA DC, set the function switch to the 200mA DC position and insert the red test lead banana plug into the (mA) jack.
3. For current measurements up to 10A DC, set the function switch to the 10A range and insert the red test lead banana plug into the (10A) jack.
4. Remove power from the circuit under test, then open up the circuit at the point where you wish to measure current.
5. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip to the positive side of the circuit.
6. Apply power to the circuit.
7. Read the current in the display. The display will indicate the proper decimal point and value.
   

RESISTANCE MEASUREMENTS

1. Set the function switch to the highest Ω position.
2. Insert the black test lead banana plug into the negative (COM) jack Insert the red test lead banana plug into the positive Ω jack.
3. Touch the test probe tips across the circuit or part under the test. It is best to disconnect one side of the part under test so the rest of the circuit will not interfere with the resistance reading.
4. Read the resistance in the display and then set the function switch to the lowest Ω position that is greater than the actual or any anticipated resistance. The display will indicate the proper decimal point and value.

TEMPERATURE MEASUREMENTS

1. Insert the type K thermocouple probe into the V/Ω/mA Temp and COM jacks.
2. Turn the rotary switch to the °F or °C position.
3. Read the temperature on the display.

DIODE TEST

1. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive diode jack.
2. Turn the function switch to theposition.
3. Touch the test probes to the diode under test. Forward voltage will indicate 0.4V to 0.7V. Reverse voltage will indicate “1”. Shorted devices will indicate near 0mV. Shorted devices will indicate near 0mV and an open device will indicate “1” in both polarities.

CONTINUITY TEST

1. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V/Ω/mA jack. Observe polarity.
2. Turn the rotary switch to theposition.
3. Touch the test probes to the circuit or device under test. If the resistance is less than approximately 40Ω the buzzer will sound.

BATTERY TEST

1. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V jack.
2. Select the 1.5V or 9V BAT position using the function switch.
3. Connect the red test lead to the positive side of the 1.5V or 9V battery and the black test lead to the negative side of the 1.5V or 9V battery.
4. Read the voltage in the display.

DATA HOLD

Press the Hold button to freeze the reading in the display. “H” will appear in the LCD. Press the key again to release the display.

MAINTENANCE

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. Temperature extremes can shorten the life of the electronic parts and distort or melt plastic parts.
3. HANDLE THE METER GENTLY AND CAREFULLY. Dropping it can damage the electronic parts or the case.
4. KEEP THE METER CLEAN. Wipe the case occasionally with a damp cloth. DO NOT use chemicals, cleaning solvents, or detergents.
5. USE ONLY FRESH BATTERIES OF THE RECOMMENDED SIZE AND TYPE. Remove old or weak batteries so they do not leak and damage the unit.
6. IF THE METER IS TO BE STORED FOR A LONG PERIOD OF TIME, the batteries should be removed to prevent damage to the unit.

REPLACING THE BATTERY

1. When the battery becomes exhausted or drops below the operating voltage, “” will appear in the lower-left corner of the LCD. The battery should be replaced.
2. Follow the instructions for installing the battery. See the Battery Installation section of this manual.
3. Dispose of the old batteries properly.

REPLACING THE FUSE

1. Disconnect the test leads from the meter and any item under test.
2. Remove the protective rubber holster.
3. Remove the two screws securing the rear cover using a Phillips head screwdriver.
4. Remove the old fuse from its holder by gently pulling it out.
5. Install the new fuse into the holder.
6. Always use a fuse of the proper size and value (250mA/250V) fast blow.
7. Replace the rear cover and secure it with the screws.

UL LISTED

The UL mark does not indicate that this product has been evaluated for the accuracy of its readings.

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 does not operate, check to be sure that both ends of the fuse are properly installed.

If You Do Not Understand How the Meter Works:

1. Purchase the instructional book Multitesters and Their Use for Electrical Testing (Item No. 82303) at your local Sears store.
2. Call our Customer Service Line 1-888-326-1006.

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Craftsman 82345 Manual Ranging MultiMeter-FAQs