Amprobe AM-250 User Manual

Amprobe AM-250 User Manual

Digital multimeter
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AM-250
Digital Multimeter
Users Manual
• Mode d'emploi
• Bedienungshandbuch
• Manual d'Uso
• Manual de uso
1

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Summary of Contents for Amprobe AM-250

  • Page 1 AM-250 Digital Multimeter Users Manual • Mode d’emploi • Bedienungshandbuch • Manual d’Uso • Manual de uso...
  • Page 3: Digital Multimeter

    AM-250 Digital Multimeter Users Manual June 2010, Rev.2 ©2010 Amprobe Test Tools. All rights reserved. Printed in Taiwan...
  • Page 4 “Where to Buy” section on www.amprobe.com for a list of distributors near you. Additionally, in the United States and Canada In-Warranty repair and replacement units can also be sent to a Amprobe® Test Tools Service Center (see next page for address). Non-Warranty Repairs and Replacement – US and Canada Non-warranty repairs in the United States and Canada should be sent to a Amprobe®...
  • Page 5 AM-250 Digital Multimeter 3-3/4 digits 4000 counts LCD display Push-buttons for special functions & features Selector to turn the Power On or Off and select a function Input Jack (+) for 10A (20A for 30sec) current function Input Jack (+) for all functions EXCEPT current (µA, mA, A) function...
  • Page 6: Table Of Contents

    CONTENTS SYMBOLS .......................1 UNPACKING AND INSPECTION ................2 INTRODUCTION .....................2 OPERATION ......................2 e Resistance, and Continuity functions ............3 Diode test,Capacitance functions ..............4 µA, mA, and A Current functions ..............5 Beep-Jack™ Input Warning ................5 Temperature function ..................6 Relative zero mode ..................6 Backlighted display ...................6 Manual or Auto-ranging ..................7 HOLD .........................7 MAX ........................7...
  • Page 7: Symbols

    SYMBOLS � Battery Refer to the manual Double Insulated Dangerous Voltage Alternating Current Earth Ground Direct Current Fuse Conform to relevant � � Complies with EU directives Australian standards Do not dispose of this Underwriters > product as unsorted Laboratories. municipal waste [Note: Canadian and US.] Audible tone...
  • Page 8: Unpacking And Inspection

    If any of the items are damaged or missing, return the complete package to the place of purchase for an exchange. INTRODUCTION Multimeter AM-250 can be used to measure voltage, resistance, capacitance, frequency, current and temperature; It is an electronic measuring instrument that combines several measurement functions in one unit. AM-250 multimeter...
  • Page 9: Resistance, And Continuity Functions

    Note: 1) AC 400.0mV range selection is by RANGE button manually, and is specified from AC 10mV and up. 2) DC 400.0mV range is designed with 1000Me high input impedance for least current drain in measuring small signals, and can cope better with most commercially available voltage output transducers and adapters.
  • Page 10: Diode Test,Capacitance Functions

    Caution � Using Resistance, Continuity, Diode or Capacitance function in a live circuit will produce false results and may damage the instrument. In many cases the suspected component must be disconnected from the circuit to obtain an accurate measurement reading. Diode test,Capacitance functions Defaults at e.
  • Page 11: Μa, Ma, And A Current Functions

    Caution � Discharge capacitors before making any measurement. Large value capacitors should be discharged through an appropriate resistance load µA, mA, and A Current functions Default at DC. Press SELECT button momentarily to select AC. Caution � When measuring a 3-phase system, special attention should be taken to the phase-to-phase voltage which is significantly higher than the phase- to-earth voltage.
  • Page 12: Temperature Function

    Press SELECT button momentarily to select degree F (Fahrenheit). You can also use a plug adapter (Optional purchase) with banana pins to type-K socket to adapt other type-K standard mini plug temperature probes (refer to www. amprobe.com). Relative zero mode...
  • Page 13: Manual Or Auto-Ranging

    Manual or Auto-ranging Press the RANGE button momentarily to select manual-ranging mode, and the meter will remain in the range it was in, the LCD symbol turns off. Press the button momentarily again to step through the ranges. Press and hold the button for 1 second or more to resume auto-ranging mode.
  • Page 14 Power Consumption: 3.2 mA typical Low Battery: Below approx. 2.4V Sleep Mode Timing: Idle for 30 minutes Sleep Mode Consumption: 300µA typical for AM-250; 360µA typical for AM- Dimension: L193mm X W97mm X H46 (7.60 X 3.82 X 1.81 IN) Weight: 370 g (0.816lb) Special Features: 25ms Max Hold;...
  • Page 15 CENELEC DIRECTIVES The instruments conform to CENELEC Low-voltage directive 73/23/EEC and Electromagnetic compatibility directive 89/336/EEC � - EMC: Conforms to EN61326-1. This product complies with requirements of the following European Community Directives: 89/ 336/ EEC (Electromagnetic Compatibility) and 73/ 23/ EEC (Low Voltage) as amended by 93/ 68/ EEC (CE Marking).
  • Page 16 DC Voltage Range Accuracy 400.0 mV 0.3% + 4d 4.000V, 40.00V, 400.0V 0.5% + 3d 1000V 1.0% + 4d NMRR:>50dB @ 50/60Hz CMRR:>120dB @ DC, 50/60Hz, Rs=1ke Input Impedance: 10Me, 30pF nominal (1000Me for 400.0mV range) Type-K Temperature Range Accuracy* -20 °C to 300 °C 2% + 3 °C -4 °F to 572 °F...
  • Page 17 Max Hold (Voltage & Current) Specified accuracy ± 50 digits for changes > 25ms in duration DC Current Range Accuracy Burden Voltage 400.0µA 2.0% + 5d 0.15mV/µA 4000µA 1.2% + 3d 0.15mV/µA 40.00mA 2.0% + 5d 3.3mV/mA 400.0mA 1.2% + 3d 3.3mV/mA 4.000A 2.0% + 5d...
  • Page 18 Capacitance Range* Accuracy** 500.0nF, 5.000µF, 50.00µF, 500.0µF, 3.5%*** + 6d 3000µF *Additional 50.00nF range accuracy is not specified **Accuracies with film capacitor or better ***Specified with battery voltage above 2.8V (approximately half full battery). Accuracy decreases gradually to 12% at low battery warning voltage of approximately 2.4V Hz Frequency Range*...
  • Page 19: Maintenance And Repair

    MAINTENANCE AND REPAIR If there appears to be a malfunction during the operation of the meter, the following steps should be performed in order to isolate the cause of the problem. 1.Check the battery. Replace the battery immediately when the “...
  • Page 20: Battery Replacement

    Battery replacement: Loosen the 2 screws from the battery access door of the case bottom. Lift the battery access door and thus the battery compartment up. Replace the battery. Re-fasten the screws. Fuse replacement: Loosen the 4 screws from the case bottom. Lift the end of the case bottom nearest the input jacks until it unsnaps from the case top.
  • Page 23 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: AMPROBE AM-250...

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