® 12 Multimeter Users Manual PN 2063508 January 2003 © 2003 Fluke Corporation. All rights reserved. Printed in China. All product names are trademarks of their respective companies.
Table of Contents Title Page READ FIRST: SAFETY INFORMATION .................................................... SYMBOLS .................................................................................................. DISPLAY .................................................................................................... OPERATING FEATURES .......................................................................... STANDBY MODE...........................................................................
12 Multimeter Users Manual Recording Minimum and Maximum Reading with Elapsed Time ............ Capturing Continuity Intermittents with Continuity Capture .................. TURNING BEEPER OFF............................................................................ MAINTENANCE.......................................................................................... N Replacing the Battery........................................................................ Replacing the Test Leads ...................
READ FIRST: SAFETY INFORMATION This meter has been designed and tested in accordance with IEC Publication 1010. To ensure that the meter is used safely, follow all safety and operating instructions in this manual. If the meter is not used as described in this manual, the safety features of the meter might be impaired. W Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator (N) appears.
12 Multimeter Users Manual SYMBOLS The following international electrical symbols are used in this manual: W Important Safety Information in Manual ∅ Not Applicable to Identified Model B AC F DC G Diode 2 E Capacitor J Ground T Double Insulation
12 Multimeter DISPLAY DISPLAY Figure 1.
12 Multimeter Users Manual OPERATING FEATURES Figure 2.
12 Multimeter STANDBY MODE STANDBY MODE In standby mode, the display goes blank to preserve battery life. The meter beeps and enters Standby if it is ON but inactive for more than 45 minutes. Press any pushbutton to resume operation. Standby is not allowed if the meter is in the MIN MAX mode. INPUT RANGES The input range determines the highest value the meter will measure. Most functions have more than one range (see SPECIFICATIONS). If the range is too low, the display shows OL (overload).
12 Multimeter Users Manual Autoranging The meter defaults to autorange when you turn it on. In autorange, the meter selects the range automatically. Manually Selecting a Range The meter also has a manual range mode. In manual range, you select and lock the meter in a range. To manually select a range: 1. Press [V]. The meter is locked in the range it is in, and V is displayed. In manual range, i is disabled. 2. Press [V] to step through the ranges.
12 Multimeter MEASURING VOLTAGE MEASURING VOLTAGE 1. Insert the test leads in the jacks. 2. To select a voltage function, put the slide-switch in the middle position. See Figure 3. To toggle between dc and ac, press [g]. 3. Touch the probes to the test points, and read the display. The meter beeps an Overload Alert™ when OL (overload) is displayed.
12 Multimeter Users Manual Figure 3.
Multimeter TESTING CONTINUITY AND MEASURING RESISTANCE TESTING CONTINUITY AND MEASURING RESISTANCE 1. Insert the test leads in the jacks, and turn off power to the circuit under test. External voltage across the components causes invalid readings. 2. Put the slide-switch in the continuity/ohms position (Figure 4). To toggle between the continuity/diode and ohms functions, press [g]. 3. Touch the probes to the test points. 4. In ohms, read the resistance on the display.
12 Multimeter Users Manual Figure 4.
12 Multimeter TESTING DIODES TESTING DIODES 1. Insert the test leads in the jacks. 2. Put the slide-switch in the continuity/ohms position. The meter selects either the continuity/diode (R G) or ohms (e) function. If ohms is selected, press [g] to toggle to the continuity/diode function. To toggle the beeper on or off in continuity/diode test, press [V]. R is displayed when the beeper is enabled. 3. Touch probes to the diode (Figure 5A). A forward-voltage drop of about 0.
12 Multimeter Users Manual Figure 5.
12 Multimeter VCHEK AND HOW TO USE IT VCHEK AND HOW TO USE IT i is a subset of the continuity/ohms function. In i, the meter is designed to automatically display an ac or dc voltage when the meter detects a voltage greater in magnitude than about 4.5 V and the meter is not in the manual range mode. THIS WILL NOT HARM THE METER. i is always enabled (and k is displayed) when the meter is in the continuity/ohms function unless the meter is in one of the following: • The manual range mode (i.e.
12 Multimeter Users Manual Use i only on power supplies and other power sources that have a low output impedance. Do not use i to measure voltage in electronic circuitry unless a 2 ke load will not damage the circuit. See † on page 27. DISABLING i WITH FUNCTION LOCK To lock the meter in either the continuity/diode or ohms function, and disable i: 1. Put the slide-switch in the continuity/ohms position. The meter selects the continuity/diode or ohms function.
12 Multimeter MEASURING CAPACITANCE MEASURING CAPACITANCE First, turn off power to the circuit, and disconnect and discharge the capacitor. 1. Insert test leads, and move the slide-switch to [E]. (See Figure 6.) 2. Press [E]. The capacitance function is selected and µF is displayed. 3. Touch the probes to the capacitor. When measuring polarized capacitors, be sure to connect the positive to [2] and the negative to COM. Capacitor dielectric absorption can cause measurement errors.
12 Multimeter Users Manual Figure 6.
12 Multimeter USING MIN MAX FUNCTIONS USING MIN MAX FUNCTIONS Recording Minimum and Maximum Readings MIN MAX records the highest and lowest measurements taken. MIN MAX cannot be used when the meter is measuring capacitance. In the MIN MAX mode, autoranging, Standby, and i are disabled. 1. Insert the test leads, and put the meter in volts or ohms. 2. Connect the leads to the circuit. 3. Press [j] to enter MIN MAX. j is displayed, and autorange is disabled.
12 Multimeter Users Manual Figure 7.
12 Multimeter USING MIN MAX FUNCTIONS Recording Minimum and Maximum Reading with Elapsed Time The MIN MAX with elapsed-time mode records the time (in hours and minutes) between when MIN MAX was entered and the last high and low was recorded. Time is kept to 99:59. OL is displayed for longer times. 1. To enable the MIN MAX elapsed-time clock, hold [j] down while moving the slide-switch from OFF to the volts or continuity/ohms position. 2. Insert the test leads, and put the meter in volts or ohms. 3.
12 Multimeter Users Manual Figure 8.
12 Multimeter USING MIN MAX FUNCTIONS Capturing Continuity Intermittents with Continuity Capture When testing continuity, the meter can capture intermittents as short as 250 µs, and display them as open-to-short and short-to-open transitions. 1. Put the slide-switch in the continuity/ohms position. 2. Connect the leads to the circuit. 3. Press [j]. The display shows the initial condition (either an open or short) as shown in Figure 9, and j is displayed.
12 Multimeter Users Manual Figure 9.
12 Multimeter TURNING BEEPER OFF TURNING BEEPER OFF To disable all beeper functions, press and hold down [Z] for 2 seconds while turning the meter on. MAINTENANCE WWarning To avoid electrical shock or damage to the meter, do not get water inside the case. Remove the test leads and any input signals before opening the case. Periodically wipe the case with a damp cloth and detergent. Do not use abrasives or solvents. N Replacing the Battery The meter uses a 9 V battery (NEDA 1604 or IEC 6F22).
12 Multimeter Users Manual Service and Parts This meter should be serviced only by a qualified service technician. To order the service manual (PN 900824) and other parts or for service information, in the USA call 1-800-825-9810. Outside the USA, contact the nearest Fluke service center. Accessories When using accessories, put the slide-switch in the volts position, and manually select the 4000 mV range for ease of reading. SPECIFICATIONS This meter complies with Part 15 of FCC Rules.
12 Multimeter SPECIFICATIONS Maximum Voltage Between any Terminal and Earth Ground Display Operating Temperature Storage Temperature Temperature Coefficient Relative Humidity Battery Type Battery Life Shock, Vibration Size (HxWxL) Weight Safety EMI Regulations 600 V rms 3 3/4-digits, 4000 counts, updates 4/sec -10 °C to 50 °C -30 °C to 60 °C indefinitely (to -40 °C for 100 hrs) 0.
12 Multimeter Users Manual Function Range Resolution Accuracy (50 to 400 Hz) E 4000 mV* 4.000 V 40.00 V 400.0 V 600 V 4000 mV* 4.000 V 40.00 V 400.0 V 600 V 1 mV 0.001 V 0.01 V 0.1 V 1V 1 mV 0.001 V 0.01 V 0.1 V 1V ±(1.9 %+3) ±(1.9 %+3) ±(1.9 %+3) ±(1.9 %+3) ±(1.9 %+3) ±(0.9 %+2) ±(0.9 %+2) ±(0.9 %+1) ±(0.9 %+1) ±(0.9 %+1) 400.0 Ω 4.000 kΩ 40.00 kΩ 400.0 kΩ 4.000 MΩ 40.00 MΩ 0.1 Ω 0.001 kΩ 0.01 kΩ 0.1 kΩ 0.001 MΩ 0.01 MΩ ±(0.9 %+2) ±(0.9 %+l) ±(0.9 %+1) ±(0.9 %+1) ±(0.9 %+1) ±(1.5 %+3) 1.
12 Multimeter SPECIFICATIONS Function E { e Overload Protection* Input Impedance (Nominal) Common Mode Rejection Ratio (1 kΩ Unbalance) Normal Mode Rejection 600 V dc >10 MΩ <100 pF † & LoZ = >2 kΩ <200 pF >5 MΩ <100 pF † & LoZ = >2 kΩ <200 pF >100 dB at dc, 50 Hz or 60 Hz >50 dB at 50 Hz or 60 Hz 600 V rms i i Open Circuit Test Voltage G >60 dB at dc 50 Hz or 60 Hz Full Scale Voltage To 4.0 MΩ 40 MΩ <1.5 V dc 600 V rms <1.5 V dc <450 mV dc 600 V rms 2.4-3.0 V dc 2.
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