1Users Manual• Mode d’emploi• Bedienungshandbuch• Manual d’Uso• Manual de usoAM-270Industrial Multimeter with Bar-graph Display

4• Overheated transformers, generators and motors to burn out faster than normal• Circuit breakers to trip prematurely• Fuses to blow• Neutrals to ove

5Note: Input sensitivity varies automatically with function range selected before activating the Hz function. mV function has the highest (300mV) and

6Normal forward voltage drop (forward biased) for a good silicon diode is between 0.400V to 0.900V. A reading higher than that indicates a leaky diode

7 Note: Be sure to insert the banana plug K-type temperature bead probe Bkp60 with correct polarities.

8 Resistance, Continuity FunctionsDefault at . Press SELECT button momentarily to select Continuity function that is convenient for checking wir

9The shortcut is to short the test leads in auto-ranging resistance mode until the meter enters the lowest 50 range automatically, press the RANGE bu

10PC-COMM Computer Interface Capabilities The instrument equips with an optical isolated interface port at the meter back for data communication. Opti

11Backlighted Display Press the SELECT button for 1 second or more to turn on or off the display backlight function. The backlight will also be turned

12Relative Mode Relative zero allows the user to offset the meter consecutive measurements with the displaying reading as the reference value. Practi

13Beep-Jack™ Input Warning The meter beeps as well as displays “InErr” to warn the user against possible damage to the meter due to improper connectio

14Pollution degree: 2Storage temperature: -20°C to 60°C (-4°F to 140°F), < 80% R.H. (With battery removed)Altitude: Operating below 2000mTemp

15Dimension: 186mm/7.3in (L) x 87mm/3.4in (W) x 35.5mm/1.4in (H); 198mm/7.8in (L) x 97mm/3.8in (W) x 55mm/2.2in (H) with holsterWeight: 340g/0.8lb

16UP TO 20KHZ50.00MV, 500.0MV 0.5DB*5.000V, 50.00V, 500.0V 3DB*1000V UNSPEC'D*SPECIFIED FROM 30% TO 100% OF RANGECMRR: >60DB @ DC TO 60HZ, RS

175.000A0.6%+3D45MV/A10.00A* 45MV/A40HZ --1KHZ500.0µA 0.8%+4D 0.15MV/µA5000µA 0.8%+4D 0.15MV/µA50.00MA 0.8%+4D 3.3MV/MA500.0MA 1.0%+4D 3.3MV/MA5.000A

18Frequency FUNCTION SENSITIVITY (SINE RMS)RANGEMV 300MV 10HZ - 125KHZ5V 2V 10HZ - 125KHZ50V 20V 10HZ - 20KHZ500V 80V 10HZ - 1KHZ1000V 300V 10HZ - 1KH

19Temperature RANGE ACCURACY*-50 OC TO 1000 OC 0.3% + 3D-58 OF TO 1832 OF 0.3% + 5D*Thermocouple range & accuracy not includedMAINTENANCE AND REPA

20Cleaning and StoragePeriodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents. If the meter is not to be use

AM-270Industrial Multimeter with Bar-graph DisplayUsers ManualMay 2010, Rev.1 ©2010 Amprobe Test Tools. All rights reserved. Printed in Taiwan Englis

Limited Warranty and Limitation of LiabilityYour Amprobe product will be free from defects in material and workmanship for 1 year from the date of pur

AM-270 Industrial Multimeter with Bar-graph Display1 3-4/5 digits 5000 counts LCD display2 Push-buttons for special functions & features3 Selector

CONTENTS SYMBOLS ...1 UNPACKING AND INSPEC

1SYMBOLSCaution ! Risk of electric shockCaution ! Refer to the explanation in this ManualDouble Insulation or Reinforced insulationAlternating Cur

2Measurement Category IV (CAT IV) is for measurements performed at the source of the low-voltage installation. Examples are electricity meters and mea

3CENELEC Directives The instruments conform to CENELEC Low-voltage directive 2006/95/EC and Electromagnetic compatibility directive 2004/108/ECUNPACKI