2
Super bright
backlight
Advanced
fi lter cuts
off noise components
from harmonic and other
sources
Measure for maximum
value simultaneously and
hold max. value on
bar graph
Double-lever jaw
mechanism gets into even
the narrowest spaces
Advanced sensor
makes it safe enough to
clamp on bare
conductors
Simply open jaws to
turn the power on
Flip
the cover to rotate
the display and view
measurements from any
angle
Specifi cations
3291
Load
3293
Leak to Load
Measurable
conductor size
ø30mm max ø24mm max
Rectifi cation True RMS
Maximum rated
voltage to earth
AC600Vrms AC300Vrms
Measurement
Range
•Auto Range switching
•
Zero-suppress at 5 counts
30.00mA
300.0mA
6.000A
60.00A 60.00A
600.0A 600.0A
1000A 1000A
Accuracy
±1.5%rdg. ±5dgt. (50Hz, 60Hz,
fc=180
)
Filter OFF:
±2.0%rdg. ±5dgt. (45 to 66Hz)
±3.0%rdg. ±5dgt. (40 to 45Hz, 66 to 600Hz)
(Add±1%rdg. for readings of 0.270 to 0.540A on the 3293)
Accuracy
Guaranteed
Measurements
Minimum 5.40A Minimum 1.00mA
Crest Factor 2.0 max (1.5 max when current exceeds 600A)
Response Time
Max. 1.5s
(Refers to time required to achieve 90% of accuracy specifi cations)
Display Refresh
Rate
Approx. 2 times/second
(Bar graph: Approx. 4 times/second)
Temperature Coeffi cient
Add (0.05 x accuracy specifi cations)/°C
(at 0°C to 40°C)
Effect of
Conductor Position
within ±5.0%
within ±0.1%
(at or below 6A range)
within ±5.0%
(at or below 60A range)
Effect of External
Magnetic Field
not defi ned
Max 7.5mA
(within a 400A/m
magnetic fi eld, at or below 6A range)
Other Functions
Display hold, maximum value hold
(hold bar graph position),
reversible LCD display, backlight, auto power off, auto
power on when jaws are open, battery level indication
Usage Environment
0°C to 40°C/32°F to 104°F, 80%rh max.
(no condensation)
Storage Environment
-10°C to 50°C/14°F to 122°F, 80%rh max.
(no condensation)
Standards
EN61010-2-032
Type A current sensor
CATIII 600V, CATIV 300V, EN61326
EN61010-2-032
Type A current sensor,
CATIII 300V, EN61326
Rated Voltage and
maximum rated power
3V DC, 20mVA
Power Supply and
max. continuous use
Button type lithium battery (CR2032) x 1,
Approx. 10 hours (continuous, no load)
Dimensions and mass
50W x 136H x 26D mm, 90g
2” x 5” x 1”, 3.2 oz
50W x 130H x 26D mm, 120g
2” x 5” x 1”, 4.2 oz
HEAD O FFICE :
81 Koizumi, Ue da, Nagano, 386-1192, Japan
TEL +81-268-28-0562 / FAX +81-268-28-0568
E-mail : os-co m@ hiok i.co.jp
HIOKI USA CORPORATION :
6 Corpo rate Dri ve, Cranbury, NJ 08512 USA
TEL +1-609-40 9-9109 / FAX +1-609-409-9108
E-mail : hioki@ hiokiusa.com
DISTRIBUTED BY
All in format ion cor rect as of Apr. 30, 2007. All s pecifi cations a re subject to change wit hout notice. 3291E1-74M-0 0P Pri nted in Jap an
Shang hai Representat ive Of fi c e :
1904, Shanghai Tim es Square Of fi ce
93 Huaihai Zhong Road
Shanghai, 200 021, P.R.China
TEL +86 -21-6391-0090, 0092
FAX +86 -21-6391-0360
E-mail : info@hioki.cn
3291
CAT IV 300V
CAT III 600V
3293
CAT III 300V