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Amprobe AM-520 HVAC Multimeter


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AM-520
AM-520
AM-520
AM-520
Designed for the HVAC professional, the AM-520 HVAC Multimeter is complete with key functions such as temperature, micro amps used for flame sensor troubleshooting and capacitance to check motor startup capacitors. The AM-520 measures a complete range of electrical parameters and features a built-in flashlight, a “third hand probe holder and VolTect™ non-contact voltage detection.


AM-500 AM-510 AM-520 AM-530 AM-560 AM-570

Multimeter Type Auto-ranging Com / Res HVAC Electrical Adv. HVAC Industrial
F
U
N
C
T
I
O
N
Safety Rating Safety CAT III 600V CAT III 600V CAT III 600V CAT III 600V CAT IV 600V
CAT III 1000
CAT IV 600V
CAT III 1000
Measure voltage in noisy environments True rms



Electrical panels, AC outlets AC Voltage (V) 600 600 600 600 1000 1000
DC systems, auto/marine batteries DC Voltage (V) 600 600 600 600 1000 1000
AC Current - electrical panels, appliances AC Current (A) 10 10 10 10 10 10
DC Current-electronics, DC motors DC Current (A) 10 10 10 10 10 10
Specified resistance and continuity Resistance (MOhms) 20 40 40 40 60 60
Flame sensors Microamps
Diodes in AC to DC converters Diode Test
Fuses, lightbulbs, wire connections Continuity
Household batteries Battery test



Motor startup or run capacitors Capacitance
Frequency verification Frequency
Non-contact voltage test Non-contact voltage
Electrical load-time on vs time off Duty cycle


Temp of air vents, fuses, transformers Temperature inputs

1 1 2 2
F
E
A
T
U
R
E
S
Automatically selects measurement range Autoranging
Manually select measurement range Manual ranging
Voltage on variable frequency drives Low pass filter



Detect stray voltages Low Z




Dimly lit areas Built-in flashlight
D
I
S
P
L
A
Y
Meter resolution LCD Counts 2,000 4,000 4,000 4,000 6,000 6,000
Dimly lit areas Backlight
Monitoring fast changing signals Bar graph

Two relative measurements on one screen Dual display



E
V
E
N
T
S
Data memory Data hold
Difference between two measurements Relative reading
Max/min peak measurement Max/min hold

Specialized signal measurements Peak hold (crest)



Amprobe AM-520 HVAC Multimeter 5 5 1 1
Perfect HVAC Multimeter for the Professional and Student Technician AMPROBE AM-520 HVAC METER This HVAC multimeter is now my first choice for a troubleshooting meter. I have been using several types of meters, for my HVAC troubleshooting calls, and now I’ve returned to the Amprobe brand. I have worked in the HVAC / Electrical trade for almost 30 years, as a field technician, and using electrical meters is required in my daily job duties. I am a HVAC / Electrical Service Instructor, at the Union, so buying and using digital multimeters is a very important part of my career and job. Pros: The price is excellent, the combined functions of this meter are superior to other manufacturers on the market. The built in strap bracket on the top of the meter makes it easy to hang with the included Velcro strapping. The selection dial is easy to read with clear selection points. Display light is clear white and lights up the entire display. I found the display easy to understand with large numbers to read in tight locations. The LED work light, on the top of the multimeter, is great when you are trying to see into a dark HVAC unit or ceiling. I love the capacitance checking capability and the ability to check temperatures with one multimeter. The micro-amp setting allows you to test flame sensors for heating troubleshooting calls. The non-contact voltage detection is a great feature, and helps you troubleshoot with one meter. Cons: The non-contact voltage detector does not measure low voltage control voltages below 90V-AC. The piercing tips on the test leads don’t pierce the wiring insulation. I found the hold button is a little awkward to use on the front of the meter. The display light only stays on for 25 seconds, this time a little short for most troubleshooting. I would like to have had a Type K thermocouple plug on the front of the meter and not the, large plug, Type K thermocouple adaptor. April 26, 2012
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  • Measurements: Voltage up to 600VAC and 600VDC, ac/dc Current, Resistance, Frequency, Capacitance, Temperature
  • VolTect Plus™ Non-contact voltage detection
  • Audible continuity
  • Diode test
  • Data hold
  • Max/min memory
  • Relative zero mode
  • Built-in flashlight
  • Built-in test leads storage and “third hand" holder
  • Auto and manual ranging
  • Auto power off and low battery warning
  • Backlit LCD display with analog bar graph
  • Velcro strap to hang a meter
  • Safety rated: CAT III 600V
FEATURE AM-520 Best Accuracy
AC Voltage 400 mV, 4.000 V, 40.00 V,
400.0 V, 600 V
+/- (1.0 % rdg + 3 LSD)
@ 45 Hz to 400 Hz, 4 V to 400 V ranges
DC Voltage 400 mV, 4.000 V, 40.00 V,
400.0 V, 600 V
+/- (0.8% rdg + 1 LSD)
@ 4 V to 400 V ranges
AC Current 400.0 μA, 4000 μA,
40.00 mA, 400.0 mA,
4.000 A, 10.00 A
+/- (1.2% rdg + 3 LSD)
@ 400 μA V to 400 mA ranges
DC Current 400.0 μA, 4000 μA,
40.00 mA, 400.0 mA,
4.000 A, 10.00 A
+/- (1.2% rdg + 3 LSD)
@ 400 μA to 400 mA ranges,
45 Hz to 400 Hz
Frequency 10 Hz to 10 MHz +/- (0.1% rdg + 4 LSD)
@ 400 μA to 400 mA ranges
Resistance 400.0 Ω,
4.000 kΩ, 40.00 kΩ, 400.0 kΩ,
4.000 MΩ, 40.00 MΩ
+/- (1.0% rdg + 2 LSD)
@ 4 kΩ to 400 kΩ ranges
Capacitance 40.00 nF, 400.0 nF,
4.000 μF, 40.00 μF, 400.0 μF, 4000 μF
+/- (3.0% rdg + 5 LSD)
@ 400 nF to 40 μF ranges
Temperature -40 °F to 1832 °F
-40 °C to 1000 °C
+/- (1.8% rdg + 6 °F) @ >32 °F to 212 °F
+/- (1.2% rdg + 3 °C) @ >0 °C to 100 °C
Number of temperature inputs Single Thermocouple



For more detailed specifications, please download the product datasheet under the “Resources" tab.
Model NameDescription
Amprobe AM-520 HVAC Multimeter Included Accessories
  • 9V(6F22) x1 battery installed
  • Test leads
  • Type-K Probe x 1
  • Velcro strap
  • Carrying case
  • Users manual
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