Amprobe AM-120 TRMS User Manual Download Page 1

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USER'S
MANUAL

AM-120 TRMS
AM-130 TRMS
AM-150 TRMS

Digital Multimeters

Version: 02/2008 / PAEB27309020

BEHA-AMPROBE GmbH

In den Engematten 14, 79286 Glottertal

Tel.: 07684 8009 - 0, Fax: 07684 8009 410

Summary of Contents for AM-120 TRMS

Page 1: ...USER S MANUAL AM 120 TRMS AM 130 TRMS AM 150 TRMS Digital Multimeters Version 02 2008 PAEB27309020 BEHA AMPROBE GmbH In den Engematten 14 79286 Glottertal Tel 07684 8009 0 Fax 07684 8009 410 ...

Page 2: ...AC DC A mAμA Category III and Category IV 500 Volts AC and 300 Volts DC CF version AM 150 Highest Protection Terminals to COM ratings V A mAμA Category III 1000 Volts AC DC and Category IV 600 Volts AC DC Category IV safety standard for DMMs was first released in IEC61010 1 2nd Edition in year 2001 Per IEC61010 1 2nd Ed 2001 Measurement Category Measurement Category IV CAT IV is for measurements p...

Page 3: ...not attempt a current measurement to any circuit where the open circuit voltage is above the protection fuse voltage rating Suspected open circuit voltage should be checked with voltage functions Never attempt a voltage measurement with the test lead inserted into the μA mA or A input jack Only replace the blown fuse with the proper rating as specified in this manual CAUTION Disconnect the test le...

Page 4: ... functions features 3 Selector to turn the Power On or Off and Select a function 4 Input Jack for 10A 20A for 30sec current function 5 Input Jack for all functions EXCEPT current μA mA A functions 6 Common Ground reference Input Jack for all functions 7 Input Jack for milli amp and micro amp current functions ...

Page 5: ... is a term which identifies a DMM that responds accurately to the effective RMS value regardless of the waveforms such as square sawtooth triangle pulse trains spikes as well as distorted waveforms with the presence of harmonics Harmonics may cause 1 Overheated transformers generators and motors to burn out faster than normal 2 Circuit breakers to trip prematurely 3 Fuses to blow 4 Neutrals to ove...

Page 6: ...tions mV function defaults at DC Press SELECT button momentarily to select AC Press the Hz push button momentarily to activate or to exit Hz Note Input sensitivity varies automatically with function range selected before activating the Hz function mV function has the highest 300mV and the 1000V range has the lowest 300V It is recommended to first measure the signal voltage or current level then ac...

Page 7: ...e load Normal 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 defective A zero reading indicates a shorted diode defective An OL indicates an open diode defective Reverse the test leads connections reverse biased across the diode The digital display shows OL if the diode is good Any other readings indicate ...

Page 8: ...w setting will be saved automatically in the non volatile memory as power up default Note Be sure to insert the banana plug K type temperature bead probe with correct polarities You can also use a plug adapter Optional purchase with banana pins to K type socket to adapt other standard K type mini plug temperature probes ...

Page 9: ...checking wiring connections and operation of switches A continuous beep tone indicates a complete wire CAUTION Using resistance and continuity 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 reading ...

Page 10: ...nternal protection circuitry of the meter is compensated automatically The compensation value can be as much as 5 If you need a compensation value that is higher than that Relative mode is recommended The shortcut is to short the test leads in auto ranging resistance mode until the meter enters the lowest 50 range automatically press the RANGE button momentarily to get the Shrt prompt then wait ab...

Page 11: ...s consider the phase to phase voltage as the working voltage for the protection fuse s RS232C PC computer interface capabilities The instrument equips with an optical isolated interface port at the meter back for data communication Optional purchase PC interface kit is required to connect the meter to the PC computer refer to www amprobe com The Data Recording System software equips with a digital...

Page 12: ...MIN mode Auto Power Off feature will be disabled automatically in this mode 5ms CREST capture mode AM 130 only Press CREST button momentarily to activate CREST Instantaneous Peak Hold mode to capture voltage or current signal duration as short as 5ms This mode is available in DCV ACV DCA ACA functions The LCD annunciators C MAX turn on The meter beeps when new maximum or minimum reading is updated...

Page 13: ...y life Hold The hold function freezes the display for later view Press the HOLD button momentarily to activate or to exit the hold function Zoom 5x analog pointer AM 130 only The Zoom mode analog pointer magnifies up to 5 times the regular analog bar graph resolution to show minute signal changes with a single analog pointer It is virtually equivalent to the bar graph resolution of 5 X 50 250 segm...

Page 14: ...ily to activate and to exit relative zero mode Manual or Auto ranging Press the RANGE button momentarily to select manual ranging and the meter will remain in the range it was in the LCD annunciator 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 Note Manual ranging feature is not available in Hz function...

Page 15: ... be stopped automatically and the meter will then enter the APO mode 2 To guarantee the accuracy of every logged data the meter will stop the data logging mode when the battery is low and goes back to the normal measuring mode 3 The data will be stored to the non volatile memory shortly after every measurement to maximize data safety However the end of data sign can only be stored after the data l...

Page 16: ...r call mode C the following on screen data item review features can quickly help you outline the key points of your logged data without the help of a computer 1 Press the up or down arrow button momentarily to step throughout the logged data 2 Press and hold the up or down arrow button can quickly scan the logged data and the beeper will beep continuously when the first or the last data is reached...

Page 17: ...0s 40s 60s 120s 240s up to the slowest 480s Then press the timer button momentarily again to confirm the new setting Note 1 The timer can not be set when the data logging is running Please set the timer before starting the data logging or pause the data if you want to alter the timer setting during data logging 2 When a sampling speed of 20s or longer is selected approximately 4 5 minutes after da...

Page 18: ...FF the meter before opening the case Do not operate with open case Install only the same type of fuse or equivalent Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent do not use abrasives or solvents If the meter is not to be used for periods of longer than 60 days remove the battery and store it separately Trouble Shooting If the instrument fails to operate check...

Page 19: ...on of approaching infinity at 0 5A It can also be loaded way beyond 1000 seconds at 1 A and has a fast acting characteristic of below 0 01 second at beyond 2 5A A 11A 1kV IR 20k fuse is also recommended 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 Fus...

Page 20: ...A F fuse V 1050Vrms 1450Vpeak mV Others 600VDC VAC rms AM 150TRMS μA mA 1A 1kV or 0 44A 1kV IR 10kA F fuse A 15A 1kV IR 10kA or 11A 1kV IR 20kA F fuse V mV Others 1050Vrms 1450Vpeak Safety The meter all versions is protected against the users by double insulation per EN61010 1 and IEC61010 1 2nd Edition 2001 to CAT III 1000V CAT IV 600V The meter all versions also meet CSA C22 2 No 1010 1 92 to CA...

Page 21: ... fast 20 second measurement mode 5ms Crest Instantaneous Peak Hold MAX MIN readings Relative Zero offset mode Zoom 5x analog pointer at 60 s AM 150 Stand alone data logging function only Non volatile memory data logging with 5400 points display readings Selectable sampling intervals of 0 05 0 2 for OC OF 0 4 for Hz and 1 for Cx 1 20 40 60 120 240 480 seconds Sleep and Log mode to largely extend ba...

Page 22: ...curacy 50 OC TO 1000 OC 0 3 3d 58 OF TO 1832 OF 0 3 5d Thermocouple range accuracy not included DC Current RANGE Accuracy Burden Voltage 500 0μA 0 15mV μA 5000μA 0 15mV μA 50 00mA 3 3mV mA 500 0mA 3 3mV mA 5 000A 0 03V A 10 00A 0 2 4d 0 03V A 10A continuous 20A for 30 seconds max with 5 minutes cool down interval AC Current RANGE Accuracy Burden Voltage 50Hz 60Hz 500 0μA 0 15mV μA 5000μA 0 15mV μA...

Page 23: ...ester Range Accuracy Test Current Typical Open Circuit Voltage 2 000V 1 1d 0 8mA 3 5 VDC Frequency Function Sensitivity Sine RMS Range mV 300mV 6Hz 125kHz 5V 2V 6Hz 125kHz 50V 20V 6Hz 20kHz 500V 80V 6Hz 1kHz 1000V 300V 6Hz 1kHz Cx diode 300mV 6Hz 125kHz μA mA A 10 F S 6Hz 125kHz Accuracy 0 01 2d Capacitance RANGE Accuracy 50 00nF 0 8 3d 500 0nF 0 8 3d 5 000μF 1 0 3d 50 00μF 2 0 3d 500 0μF 3 5 5d 9...

Page 24: ...the instrument has not been tampered with or taken apart Should your instrument fail due to defective materials and or workmanship during this one year period a no charge repair or replacement will be made to the original purchaser Please have your dated bill of sale which must identify the instrument model number and serial number and call the number listed below BEHA AMPROBE GmbH In den Engematt...

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