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Related Manuals for Aktakom AM-1108
Summary of Contents for Aktakom AM-1108
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Page 1: Digital Multimeter
Digital Multimeter AM-1108 USER`S MANUAL www.tmatlantic.com... -
Page 2: Table Of Contents
www.tmatlantic.com Table of Contents Chapter 1. Introduction .................. - 2 - Chapter 2. Getting Acquainted............... - 4 - Chapter 3. Making Measurements............... - 13 - Chapter 4. Using Memory & Communications Features......- 21 - Chapter 5. Changing the Default Settings........... - 23 - Chapter 6. -
Page 3: Chapter 1. Introduction
www.tmatlantic.com Chapter 1. Introduction Warning Read Safety Information before using the meter. Summarize The meter is a handled, battery-operated tool for measuring electrical parameters. It has all the features of a digital millimeter and measure AC voltage, DC voltage, AC current, DC current, resistance, capacitance, frequency, duty cycle ratio, dBm, TC, RTD, Diode Test, Continuity Check... - Page 4 www.tmatlantic.com Caution To avoid possible damage to the meter or to the equipment under test: Set the rotary switch on the right range. Do cut off the testing leads and circuit before switching. Forbid to switch during the measuring process. ...
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Page 5: Chapter 2. Getting Acquainted
www.tmatlantic.com Chapter 2. Getting Acquainted Introduction Study this chapter to be acquainted with all the features and functions of the meter. Turning the Meter On To turn the meter on, press to power on and press again for more than 2 seconds to power off. When the power is turned on, the source starts to make self-diagnosis internally and displays on full screen. - Page 6 www.tmatlantic.com Communication interface Display screen Pushbuttons Rotary function Input jacks Figure 2-1.Outer Structure Figure 2-2.Input Jacks Table 2-1.Input Jacks Item Function Measuring Signal (+): direct and alternating current (A), frequency. ① Measuring Signal (+): direct and alternating current (mA, μA), frequency ②...
- Page 7 www.tmatlantic.com Figure 2-3.Rotary Switches Table 2-2.Rotary Switches Position Rotary Switch Function Blue Pushbutton Function ① AC Voltage Measurement dBm Measurement DC Voltage Measurement None ② DC mA Voltage Measurement TC Measurement ③ Diode testing, continuity testing, RTD ④ Resistance Measurement testing Capacitance None...
- Page 8 www.tmatlantic.com Figure2-4.Display Unit Table 2-3.Display Unit Unit Meaning Display Hold：To hold present value in the main display Peak Hold：Valid only in DCV position Auto Hold：To freeze the present value in auto hold mode Toggles in auto-ranging mode To access yellow button ( ) function Readings are being recorded in logging mode Readings are being recorded in comparative mode...
- Page 9 www.tmatlantic.com V、mV The unit of voltage: Volt, Mill volt nF、µF The unit of capacitance: Nanofarad, Microfarad, Millifarad. Degrees Celsius (default) or Fahrenheit. °C、°F For ac volts functions, reading is shown in decibels of power above or below 1 mW (dBm). Alternating current, direct current.
- Page 10 www.tmatlantic.com Figure 2-5. Pushbutton Table 2-4.Pushbutton Description Yellow Button Description Pushbutton Function Note Press to access “Yellow Button Functions”, and will be on display Press to access blue functions on the rotary switch. In Setup and Comparative Mode, use arrow (None) ○...
- Page 11 www.tmatlantic.com Press for more than 2 seconds to stop. In MEM，press to read COMP Data. In Setup or COMP mode, decrement a digit. In MEM mode，press to get the next data stored （None） otherwise to clear off the data if pressing for more than 2 seconds Turn on the power or backlight.
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Page 12: Selecting The Range
www.tmatlantic.com Figure 2-8.P.H Mode Peak HOLD mode could capture the signals of an imminent of a positive polarity as short as 1 ms except that the accuracy is low. In Peak HOLD mode, press to calculate the relative value and the screen will show symbol “ ”and the relative peak value. - Page 13 www.tmatlantic.com e Auto Ranging will be shut off and fixed the present range before enter max min mode. Therefore, set the right range before choose this mode. To exit this mode, press for more than 2 seconds or set the rotary switch to any other position. - 12 -...
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Page 14: Chapter 3. Making Measurements
www.tmatlantic.com Chapter 3. Making Measurements Introduction Chapter 3 explains how to make measurements. Most measurement functions can be selected by using the rotary switch. White letters or symbols identify primary functions; blue letters or symbols identify alternative functions. Press the blue button to access these alternate functions. - Page 15 www.tmatlantic.com Warning Do not apply more than DC 1000 V or AC 750 rms voltage; the meter will possible be damaged though the value could be displayed. Indicator “ ” is on display for safety note when 30 V ac and/or dc voltage present at the input terminals ...
- Page 16 www.tmatlantic.com Figure3-3.DC Voltage Measurement Warning Do not apply more than DC 1000 V or AC 750 rms voltage; the meter will possible be damaged though the value could be displayed. Indicator “ ” is on display for safety note when 30 V ac and/or dc voltage present at the input terminals The meter beeps constantly if the input voltage is more than AC 750V rms, which is over the meter’s range.
- Page 17 www.tmatlantic.com Figure3-5.TC Measurement The temperature degree is shown on the primary display, the TC value on the secondary display and Fahrenheit degree on elapsed time display. When the output jack is open circuit, the screen displays OL. Warning To avoid possible electric shock or personal injury, do not connect the TC with the live circuit.
- Page 18 www.tmatlantic.com To avoid possible damage to the meter or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before testing diodes. Use the diode test to check diodes, transistors, and silicon-controlled rectifiers (SCR), and other semiconductor devices. The test sends a current through a semiconductor junction, and then measures the junction’s voltage drop.
- Page 19 www.tmatlantic.com To test continuity, proceed as follows: 1. Set the rotary switch to position, and press blue button ( ) twice to select continuity check and the symbol “ ” will be shown on the left part of the screen. 2.
- Page 20 www.tmatlantic.com See Figure3-10. Capacitance Measurement Measuring Current (See Figure3-11, Figure3-12) Warning Never attempt an in-circuit current measurement where the open-circuit potential to earth is greater than 1000 V. You may damage the meter or be injured if the fuse blows during such a measurement.
- Page 21 www.tmatlantic.com Notice Start measuring from the high range if the current can’t be evaluated. For safety, the measuring time should be limited within 15s, while the interval should be more than 10 min when measuring high current. If the input current is more than 10.00A, then the inner beeper sounds constantly indicating the value surpass the range.
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Page 22: Chapter 4. Using Memory & Communications Features
www.tmatlantic.com Chapter 4. Using Memory & Communications Features Introduction Chapter 4 shows you how to use memory and communication features available on the meters. Data Storage The meter has three types of memory data: SAVE mode, LOG mode and COMP mode. Notice ... -
Page 23: Clearing Memory
www.tmatlantic.com Warning To avoid electric shock, disconnect the test leads when the rotary switch is in the MEM position. Notice In MEM function, each operation could only read or clear the data of one storing part. 2. Turn the rotary switch to the MEM position and “ ”... -
Page 24: Chapter 5. Changing The Default Settings
www.tmatlantic.com Chapter 5. Changing the Default Settings Introduction The meter allows you to change the default-operating configuration of the meter by changing setup options made at the factory. Many of these setup options affect general meter operations and are active in all functions. Others are limited to one function or group of functions. -
Page 25: Chapter 6. Maintenance
www.tmatlantic.com Chapter 6. Maintenance Introduction This section provides some basic maintenance procedures. Repair, calibration, and servicing not covered in this manual must be performed by qualified personnel. For maintenance procedures not described in this manual, contact a Service Center. General Maintenance ... - Page 26 www.tmatlantic.com 1. Remove the test leads and turn the meter OFF 2. Specific steps: take off the protector of the meter and then with a standard blade hand screwdriver, turn each battery door one-quarter turn counterclockwise, so that the slot is parallel with the screw picture molded into the case. 3.
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Page 27: Chapter 7. Specifications
www.tmatlantic.com Chapter 7. Specifications Safety and Compliance Highest voltage of all input jacks to earth ground 1000V dc or ac Compliance Complies with IEC61010.1-93 Over voltage Pollution Degree 2. (Safety Standard issued by IEC) Fuse Protection for mA or µA inputs 0.5 A, 250 V FAST Fuse Fuse Protection for A input 10 A, 250 V FAST Fuse... - Page 28 www.tmatlantic.com DC Voltage Measurement Range Resolution Accuracy Remark 40.00mV 0.01 mV 0.5%+6 Measuring Impedance：> 2.5GΩ Overvoltage Protection：1000V 400.0mV 0.1 mV 0.2%+4 4.000V 0.001V 0.2%+4 Measuring Impedance(Standard Value)： 10 MΩ< 100 pF 40.00V 0.01V 0.2%+4 Common mode rejection ratio:：50Hz or 60Hz > 100dB 400.0V 0.1V 0.2%+4...
- Page 29 www.tmatlantic.com 4.000kΩ 0.001kΩ 0.2%+4 40.00kΩ 0.01kΩ 0.2%+4 400.0kΩ 0.1kΩ 0.2%+4 4.000MΩ 0.001 MΩ 0.5%+4 40.00 MΩ 0.01 MΩ 1%+4 Capacitance Measurement Range Frequency Accuracy Remark 50.00nF 0.01nF 4%+5 To improve the accuracy of the low capacitance 500.0nF 0.1nF 2%+5 value, open the circuit, and then press 5.000µF 0.001µF 2%+5...
- Page 30 www.tmatlantic.com Peak hold Range Accuracy time Response ±100 Counts >1ms Notice of the Instruction Manual The present operation instruction is subject to change without notice. The content of the operation instruction is regarded as correct. Whenever any user finds its mistakes, omission, etc., he or she is requested to contact the manufacturer.