Description
Designed primarily for HVAC professionals, the AM-520 autoranging digital multimeter offers all the most commonly used HVAC digital multimeter features such as temperature, micro amps to troubleshoot flame sensors, and capacitance to check motor startup capacitors. With its CAT III safety rating, this high voltage multimeter measures a broad range of electrical parameters. The backlit LCD display makes it easy to read, and it’s easy to use with non-contact voltage detection, the “third hand” probe holder, and the built-in flashlight.




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AM-500 |
AM-510 |
AM-520 |
AM-530 |
AM-560 |
AM-570 |
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 |
 |
 |
 |
 |
 |
| 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) |
|
|
|
|
■ |
■ |