■ 3287/3288 Specifications (
accuracy at 23˚C±5˚C (73˚F±9˚F), 80% rh)
●AC measurement: 3287; true RMS, 3288; MEAN value ●Ancillary
functions: auto zero(at DCA), auto ranging, data
hold function, auto power
save function
●
Display: Max.4199-count LCD ●Sampling rate: 2.5
times/sec
● Measurable conductor diameter: ø35mm
(1.37")
max.
●Max.usable circuit voltage: 600Vrms ●Crest factor(3287 only): 2.5 or
less (150Amax. 1000Vmax.) ●Effect of conductor position: within ±1.0
%(3288; ±2.0%) in any direction from the center of sensor ●Overload
protection: DCV/ACV - 600 V DC /AC rms; ohms/continuity - 250 V DC/AC
rms ●Applicable standards: Safety - EN61010-1:2001 CAT
III
600V(AC A),
CAT
III
300V(AC/DC V), CAT
II
600V(AC/DC V), UL 61010B-1:2003; EMC -
EN61326-1 ●Location for use: Indoors, altitude up to 2000 m ●Ambient
temperature of use: 0 to 40˚C
(32˚F to 104˚F),
80%rh (no condensation)
●Storage temperature range: -10 to 50˚C
(14˚F to
122˚F)
,
(no condensation)
●Power source: CR 2032 battery✕1 (3V DC)
●Continuous operating
time: approx. 25 hours (3288; approx. 60 hours) ●Dimensions and mass:
Approx. 57 W✕180 H✕16 D mm, 170 g
(3288; 150 g) (Approx 2.2" (W )✕ 7.1" (H)✕
0.6" (D), 6.0 oz. (3288; 5.3oz.))
●Accessories: battery,
carrying case, test leads and
manual
●
Multi-function clamp
that simplifies equipment diagnosis:
Besides AC/DC current measurement, it also contains DMM
functions for voltage, resistance, and continuity checking.
Function Range (Accuracy)
10.00 / 100.0 A (45 to 66 Hz; ±1.5%rdg.±5dgt.)
(10 to 45 Hz or 66Hz to 1kHz; ±2.0%rdg.±5dgt.)
DC voltage
AC voltage
4.200 / 42.00 / 420.0 / 600 V
(30 to 500Hz; ±2.3%rdg.±8dgt.)
420.0 m / 4.200 / 42.00 / 420.0 / 600 V
(±1.3%rdg.±4dgt.)
Resistance
(open terminal voltage 3.4 V max.*
2
)
420.0 / 4.200 k / 42.00 k / 420.0k /
4.200 M / 42.00 MΩ (±
2.0%rdg.
±
4dgt.
*
3
)
Continuity
(
open terminal voltage 3.4 V
max.
)
420.0 Ω (±2.0%rdg.±6dgt.)
(
Buzzer sounds at approx. 50 Ω or less
)
● A slim core of only 10 mm (0.39"),
so clamping is easy even in crowded wiring
● Independent-opening double-lever design
● No metal
(iron core)
exposure,ensuring enhanced safety
● CAT III 600 V (current) for emphasis on safety
*1. current measurement function performs zero suppression for counts 5 or less
*2. at 420 Ω. (4.2k 0.7V
(typ.) 42k to 42M 0.5V (typ.) )
*3. at 420 to 420kΩ. (4.2MΩ ±5.0%rdg.±4dgt. 42MΩ ±10.0%rdg.±4dgt.)
●
Test Lead Holder
for convenient
voltage, resistance, and
continuity checking.
9209 TEST LEADS HOLDER
(optional)
One-touch maintenance on all types of
AC/DC equipment
removable
Includes 9208 TEST LEADS and 9398 CARRYING CASE
Inspect the unit and check that it is operating correctly before use. When carrying out measurement on live lines, wear
proper protective gear, insulating rubber gloves, insulating rubber boots and safety helmet, and use extreme caution to
avoid electric shock accidents.In order to prevent short-circuits and injury, use the clamp product on electrical circuits
with a voltage less than the maximum operation circuit voltage.
(1.37
")
ø35
mm
max.
10
mm
DD
DD
uu
uu
aa
aa
ll
ll
AA
AA
cc
cc
tt
tt
ii
ii
oo
oo
nn
nn
JJ
JJ
aa
aa
ww
ww
●
The 3288, for high current measurements
such as UPS emergency batteries and train motors:
Handles measurements up to a
maximum of AC/DC 1000 A,
using an average value
type measurement
formula for AC mode
to realize cost savings.
❑
Features
(0.39
")
DC current
*
1
100.0 / 1000 A
(±1.5%rdg.±5dgt.)
AC current
*
1
100.0 / 1000 A (45 to 66 Hz; ±1.5%rdg.±5dgt.)
(10 to 45 Hz or 66Hz to 500Hz; ±2.0%rdg.±5dgt.)
10.00 / 100.0 A
(±1.5%rdg.±5dgt.)
3288
3287
3288
3287
●
The 3287, which can handle even cogenerator
/
inverter energy-saving equipment:
The 3287 performs accurate measurements
of even small currents in the AC/DC
10.00 A range. In AC mode it also
guarantees accuracy of true RMS
measurements for frequencies from 10
Hz to 1 kHz. Handles low frequency
to distorted currents including higher
harmonics, simplifying maintenance of
energy-saving equipment up to a
maximum of 100 A.
3287E4-4ZM-02U Printed in Japan
All information correct as of Dec. 17, 2004. All specifications are subject to change without notice.
HEAD OFFICE :
81 Koizumi, Ueda, Nagano, 386-1192, Japan
TEL +81-268-28-0562 / FAX +81-268-28-0568
E-mail: os-com@hioki.co.jp
HIOKI USA CORPORATION :
6 Corporate Drive, Cranbury, NJ 08512 USA
TEL +1-609-409-9109 / FAX +1-609-409-9108
E-mail: hioki@hiokiusa.com
DISTRIBUTED BY
Shanghai Representative Office :
1704 Shanghai Times Square Office
93 Huaihai Zhong Road
Shanghai, 200021, P.R.China
TEL +86-21-6391-0090, 0092
FAX +86-21-6391-0360
E-mail: info@hioki.cn
