WARNINGS
To ensure safe operation and service of the tester,
follow these instructions. Failure to observe these
warnings can result in severe injury or death.
• Never use the meter on a circuit with voltages that
exceed the category based rating of this meter.
• Do not use the meter during electrical storms or
in wet weather.
• Do not use the meter or test leads if they appear
to be damaged.
• Ensure meter leads are fully seated, and keep
fingers away from the metal probe contacts when
making measurements.
• Do not open the meter to replace batteries while
the probes are connected.
• Use caution when working with voltages above
60V DC or 25V AC RMS. Such voltages pose a
shock hazard.
• To avoid false readings that can lead to electrical
shock, replace batteries when a low battery
indicator appears.
• Unless measuring voltage, shut off and lock out
power before measuring resistance.
• Always adhere to local and national safety codes.
Use individual protective equipment to prevent
shock and arc blast injury where hazardous live
conductors are exposed.
• The MM500 is sealed to meet IP67 certification.
There are no user serviceable parts.
SYMBOLS
AC Alternating Current
DC Direct Current
DC/AC Voltage or Current
Ground
Resistance Continuity
Double Insulated Class II
Warning or Caution
Dangerous levels
SYMBOLS USED ON LCD
AC Measurement DC Measurement
-
Negative DC Value
AT
Auto Range Active
Apo
Auto Power-Off Active
Continuity Test
Low Battery
.
O
L
Overload:
Range Exceeded
k
Kilo 10
3
A- HOLD
Auto-Hold Active
V
Voltage
Measurement
Ω
Resistance
in Ohms
Apo
A-HOLD
G
(Back)
(Back)
H
F
G
E
A
(Bottom)
3C
4
D
21
B
FEATURES
GENERAL SPECIFICATIONS
The Klein Tools MM500 is an auto-ranging multimeter.
It measures AC/DC voltage, resistance, and continuity.
• Operating Altitude: 2,000 m (6,562 ft.)
• Relative Humidity: 75% max operating
• Operating Temperature:
O°to 50°C (32°to 122°F) < 75% R.H.
• Storage Temperature:
-20°to 60°C (-4° to 140°F) < 80% R.H.
• Accuracy Temperature:
18° to 28°C (64° to 82°F) < 75% R.H.
• Temperature Coefcient: 0.1*(specied accuracy) / °C
• Sampling Frequency: 3 samples per second
• Dimensions: 143 x 76 x 32 mm (5.625" x 3" x 1.25")
• Weight: 184 g (6.5 oz.)
• Calibration: Accurate for one year
• Standards: UL 61010-1, Ed. 2, Revision date 2008/10/28
CSA C22.2 No. 61010-1, Edition 2, Rev. date 2008/10/01
• Pollution Degree: 2
• Accuracy: ± (% of reading + # of least signicant digits)
• Ingress Protection: IP67 Certied
• Drop Protection: 3 m (9.8 ft.)
• Safety Rating: CAT III 750V / CAT IV 600V
• Electromagnetic Environment: EN61326-1:2013 This
equipment meets requirements for use in basic and
controlled electromagnetic environments like residential
properties, business premises, and light-industrial
locations.
Specifications subject to change.
