
73/77 Digital Multimeters
All-round performers
10454-ENG Rev. 01
The model numbers Fluke 73 and 77 are
an important part of Fluke
’
s reputation. In
many years of service they have become
the preferred models for a large number
of professionals. The Fluke 73 and 77
offer exactly the right fit for a wide range
of measurements. They are truly all-
round performers.
The 73 III is perfectly suited for many
electronic applications and has the
"classic" 70 series design with removable
holster. The 77 III has all the features
and functions for a wide range of
industrial applications packaged in an
ergonomic case with integrated holster.
Both models come with the unique
lifetime warranty.
Safety conformance
All inputs on the Fluke 73 are protected
to EN61010-1, CAT II 600V, UL, CSA and
T
ü
V listed. All inputs on the Fluke 77 are
protected to EN61010-1 CAT III 600V and
CAT II 1000V, UL, CSA and T
ü
V listed.
Features
Accuracies are best accuracies for each function.
Battery Life:
2000 hours typical
Size (HxWxD):
73 III 166 mm x 75 mm x 28 mm
77 III 190 mm x 89 mm x 37 mm
Weight:
0.34 kg
Lifetime Warranty
Accessories and
Ordering Information
Included Accessories
73 III : TL75 test leads, operator
’
s manual,
9V battery (installed) and C70Y holster
77 III : TL75 test leads, operator
’
s manual,
9V battery (installed)
Ordering Information
Fluke 73 III Multimeter
Fluke 77 III Multimeter
Specifications
Function
Voltage DC
Maximum
600 V
1000 V
600 V
1000 V
10 A
10 A
32 M
Max. resolution
0.1 mV
0.1 mV
1 mV
1 mV
0.01 mA
0.01 mA
0.1
73 III
±(0.3% + 1)
77 III
±(0.3% + 1)
Voltage AC
±(0.2% + 2)
±(0.2% + 2)
±(1.5% + 2)
±(2.5% + 2)
±(0.5% + 1)
Current DC
Current AC
Resistance
±(1.5% + 2)
±(2.5% + 2)
±(0.5% + 1)
Digital display counts
High contrast digital display with large digits
Analog bargraph/segments
Auto and Manual ranging
Automatic Touch Hold
Audible continuity / diode test
Ergonomic case with integrated holster
“
Classic
”
design with removable holster
Sleep Mode preserves battery life
EN 61010-1 safety rating
73 III
3200
77 III
3200
G
31
G
31
G
G
G
G
G
G
G
G
G
CAT III 600V
CAT II 1000V
CAT II 600V