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Amprobe AM-140 User Manual

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USER'S
MANUAL
AM-140
AM-140 TRMS
AM-160
AM-160 TRMS
Digital
Multimeters

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Summary of Contents for Amprobe AM-140

  • Page 1 USER'S MANUAL AM-140 AM-140 TRMS AM-160 AM-160 TRMS Digital Multimeters...
  • Page 2 Edition (2001) to CAT III 1000V & CAT IV 600V. The meter also meets UL3111-1 (1994)* and CSA C22.2 No. 1010-1-92* to CAT III 1000V. AM-140 Terminals (to COM) ratings: Category III 1000 Volts AC & DC, and Category IV* 600 Volts AC & DC.

  • Page 3: Terms In This Manual

    TERMS IN THIS MANUAL WARNING identifies conditions and actions that could result in serious injury or even death to the user. CAUTION identifies conditions and actions that could cause damage or malfunction in the instrument. WARNING To reduce the risk of fire or electric shock, do not expose this product to rain or moisture. To avoid electrical shock hazard, observe the proper safety precautions when working with voltages above 60 VDC or 30 VAC rms.

  • Page 4: Product Description

    3) PRODUCT DESCRIPTION Panel Illustration 1) 5-4/5 digits 500000 counts LCD display 2) Push-buttons for special functions & features 3) Selector to turn the Power On or Off and Select a function 4) Input Jack for 10A (+) (20A for 30sec) current, and for T2 (-) function 5) Input Jack (+) for all functions EXCEPT...
  • Page 5 Average sensing RMS calibrated RMS (Root-Mean-Square) is the term used to describe the effective or equivalent DC value of an AC signal. Most digital multimeters use average sensing RMS calibrated technique to measure RMS values of AC signals. This technique is to obtain the average value by rectifying and filtering the AC signal.

  • Page 6: Operation

    NMRR (Normal Mode Rejection Ratio) NMRR is the DMM's ability to reject unwanted AC noise effect that can cause inaccurate DC measurements. NMRR is typically specified in terms of dB (decibel). This series has a NMRR specification of > 60dB at 50 and 60Hz, which is a good and definite ability to reject the effect of AC noise when making DC measurements.
  • Page 7 Note: Line Level Frequency measuring function input sensitivity varies automatically with voltage (or current) function range selected. The lower the measuring range the higher the sensitivity. That is, mV function has the highest and the 1000V range has the lowest as in voltage function ranges. It is recommended to first measure the signal voltage (or current) level then activate the Hz function in that voltage (or current) range to automatically get the most appropriate trigger level.
  • Page 8 Hz Logic Level Frequency and % Duty Cycle functions Press SELECT button momentarily to toggle between Hz and % (duty cycle) readings. The new setting will be saved automatically to the non-volatile memory as power up default. Press 500000 button momentarily to toggle between 5 full digits and 6 full digits Hz readings.
  • Page 9 Ω Resistance, Continuity functions Press SELECT button momentarily to toggle between Ω and Continuity functions. The new setting will be saved automatically to the non-volatile memory as power up default. Continuity function is convenient for checking wiring connections and operation of switches.
  • Page 10 CAUTION Using resistance or continuity function in a live circuit will produce false results and may damage the meter. In many cases the suspected component must be disconnected from the circuit to obtain an accurate reading. Capacitance, Diode test function Press SELECT button momentarily to toggle between Capacitance and Diode Diode test functions.
  • Page 11 µA, mA, A, and %4-20mA Current functions Insert the red test lead into the correct µA/mA or A input jack. Press SELECT button momentarily to select DC, AC, or DC+AC. The new settings will be saved automatically to the non-volatile memory as power up default. In DC mA function, neither in AC nor in DC+AC, press and hold the %4-20mA (( Hz) button for 1 second or more to display the current digital data in terms of loop current percentage (%) value.
  • Page 12 MAX/MIN RECORDING mode Press REC button momentarily to activate MAX/MIN recording mode. The LCD symbol “R” and “MAX MIN” turn on. The meter beeps when new maximum or minimum reading is updated. Press the button momentarily to read throughout the Maximum (MAX), Minimum (MIN), and Maximum minus Minimum (MAX-MIN) readings.

  • Page 13: Maintenance

    Hold The hold function freezes the display for later view. Press the HOLD button momentarily to activate or to exit the hold function. Set Beeper Off Press the Hz button while turning the meter on to disable the push button operating beeper feature.
  • Page 14 Battery and Fuse replacement Battery use: 9V alkaline battery NEDA1604A, JIS6AM6 or IEC6LF22 AM-140: Fuse (FS1) for µAmA current input: 0.63A/500V, IR 200kA, F fuse; Fuse (FS2) for A current input: 12.5A/500V, IR 20kA, F fuse AM-160: Fuse (FS1) for µAmA current input: 1A/600V, IR 100kA, F fuse...

  • Page 15: General Specifications

    IEC61010-1 2nd Edition (2001) to CAT III 1000V & CAT IV 600V. The meter also meets UL3111-1 (1994)* and CSA C22.2 No. 1010-1-92* to CAT III 1000V. AM-140 Terminals (to COM) ratings: Category III 1000 Volts AC & DC, and Category IV* 600 Volts AC & DC.
  • Page 16 Overload Protections: AM-140: µA & mA : 0.63A/500V, IR 200kA, F fuse; : 12.5A/500V, IR 20kA, F fuse : 1050Vrms, 1450Vpeak mV, Ω, & Others : 600VDC/VAC rms AM-160 µA & mA : 1A/600V, IR 100kA, F fuse : 15A/1kV, IR 10kA (or 11A/1kV, IR 20kA), F fuse V, mV, Ω, &...
  • Page 17 AC & AC+DC Voltage **From 5% to 10% of range: accuracy % of reading (or in dB) + 180d RANGE AM-160 AM-140 **From 10% to 15% of range: Accuracy* accuracy % of reading (or in dB) + 100d 20Hz -- 45Hz CMRR: >90dB @ DC to 60Hz, Rs=1kΩ...
  • Page 18 Ohms AC & AC+DC CURRENT RANGE AM-160 AM-140 RANGE AM-160 AM-140 Burden Accuracy Accuracy 500.00Ω 0.07%+10d 50Hz -- 60Hz 5.0000KΩ 500.00µA 0.15mV/µA 0.1%+6d 0.07%+2d 50.000KΩ 5000.0µA 0.15mV/µA 0.5% 1.0% 50.000mA 3.3mV/mA 500.00KΩ +50d +40d 500.00mA 3.3mV/mA 0.2%+6d 0.4%+6d 5.0000MΩ 5.0000A 0.03V/A...

  • Page 19: Diode Tester

    DIODE TESTER RANGE Accuracy Test Open Current Circuit (Typical) Voltage 5.0000V 1%+1d 0.8mA < 3.5 VDC T1-T2 Dual Temperature (AM-160 only) RANGE Accuracy -50.0°C to 1000.0°C 0.3%+1°C -58.0°F to 1832.0°F 0.3%+2°F Thermocouple range & accuracy not included Hz Line Level Frequency RANGE Accuracy 5.0000Hz--200.000kHz...

  • Page 20: Limited Warranty

    Please have your dated bill of sale, which must identify the instrument model number and serial number and call the number listed below: Repair Department ATP – Amprobe, TIF, Promax Miramar, FL Phone: 954-499-5400 800-327-5060 Fax: 954-499-5454 Website: www.Amprobe.com...

This manual is also suitable for:

Am-160Am-140 trmsAm-160 trms

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