
2
Use the Bluetooth-equipped
CM3286-01 for even more
convenient measurement.
Use the Bluetooth-equipped
CM3286-01 for even more
convenient measurement.
Meter tam-
pering
Meter tam-
pering
Direct
theft
Direct
theft
Accurately detect electricity theft
• The CM3286 is ideal for verifying electricity theft since it can measure both AC
power and current.
• The instrument’s electricity theft detection-and-report function can be used to
quickly and easily make measurements and generate reports (CM3286-01 only).
Tampering of electric meters
Tampering so that meters underreport usage
Direct theft
Stealing electricity by directly
tapping power lines
Detect by comparing electric me-
ter readings and measurements
Proper operation of electric meters can be conrmed by comparing meter readings and actual values.
Mechanical meter
L1/R/A
N
CONNECTION
CORD L9257
or
Choose the type of
probe that best suits
your measurement
Electronic meter
location (see options)
Detect by measuring
current
Electricity theft can be detected by measuring current
on the power supply side of the illegal connection.
Illegal
connection
Measure currents as low as
60 mA simply by clamping
the instrument to two lines
at once, ensuring you’ll detect any theft.
Power supply side
[Proper operation]
Energy
(Measured value)
Available for Android
and iOS devices
Energy ratio
(Measured value/
theoretical value)
Energy difference
(Measured value −
theoretical
value)
Energy
(Theoretical value)
[Faulty operation] [Proper operation] [Faulty operation]
The energy ratio is
Result
greater than 100%.
Quick and easy data recording
Hold measured values to send them to a smartphone
When you freeze the measured value, it is automatically
transferred to a smartphone or
tablet, eliminating the need to
jot down readings by hand. You
can also create a simple PDF
report right there in the field,
and save data in CSV format
for later editing in Excel.
Current peak value
Current
frequency
Current
value
Result
Current detected.
*Screen values represent example measurements.
Electricity theft detection-andreport function
Simply follow the measurement procedure
to take mea sureme nts and ph otographs
at four lo catio ns and the instrument will
automat icall y generate a report, complete
with pho tos.
Since t he repor t is gen erated a utomati-
in the field based on captured mea-
cally
sureme nt data, it’s impossible f or others to
alter the data.

Delivering a broad range of measurements at
sites from manufacturing plants to households
• Accurately measure power from 5 W at a current as low as 60 mA to 360 kW at a
maximum of 600 A (single-phase power measurement).
• In addition to current, voltage, and power, measure simple integral power
consumption and phase sequence.
• Obtain accurate readings with true RMS measurement.
3
Simple wiring guide
The CM3286 provides a simple on-screen guide
indicating how to connect it to a 3-phase circuit.
Example: 3-phase AC measurement (3P3W, balanced)
Power supply side
L1(R)
L2(S)
L3(T)
Jaw
Load side
Measurement
screen
Measurement line
Measure power in single-phase to balanced
three-phase circuits
(with estimated values)
1-phase/ 2-wire
1-phase/ 3-wire
balanced 3-phase/ 3-wire
balanced 3-phase/ 4-wire
*The instrument generates
estimated power values
when measuring 3-phase
circuits.
AUTO HOLD
The clamp meters beep when the measured value stabilizes and then automatically hold the display value.
This is useful when using the instrument in loca-
tions where it is difcult to see the display or press
the hold button.
I can’t see
the screen…
HOLD
♪
Rotary switch that can be
turned with a single hand
White backlight
All related parameters are shown on a single screen
[Power display] [Current display]
Voltage
RMS value
Current
RMS value
Power
factor
Active
power
Current
peak value
Current
frequency
Current
value
Easily check power supply uctuations
Since it can display maximum (MAX), minimum
(MIN), and average (AVG) values, the CM3286 is
useful when you need to ascertain the magnitude
of uctuations.
And since it can also measure crest (PEAK) values, you can use it to check fluctuations at the
crest value level.
|PEAK|
MAX MIN
Measured value
(RMS value)
Has the measured
Black Red
Quickly check for unbalance
The CM3286 can measure unbalanced power in a
3-phase/ 3-wire circuit by measuring the single-phase
power twice and then automatically adding the results. (The instrument can also measure 3-phase/4wire circuits in three separate measurements.)
First measurement
+
→
Second
measurement
value stabilized?
Double warnings with sound and light
When the clamp power meter detects excessively
over current or voltage input during a continuity
check, it alerts you with a red backlight and beeping tone in order to help prevent accidents.
GENNECT Cross (freeware) is required to use instruments with a smartphone or tablet.
GENNECT Cross available from the Google Play or Apple Store.
General
measurement
Tap "Save measu red valu e"
in the app o r press t he
HOLD key on t he measuring
instrument to save the data .
Measured values from
multiple channels can be
saved.
Simple logging
function
Convenient for observing
fluct uatio ns over a sho rt
perio d of time when it’s
not prac tical t o set up
large-scale recording
equipment.
|PEAK|Waveform
Display
refresh
interval
CAT IV 600 V
The CM3286 can safely measure service wires
with a wire-to-ground voltage of up to 600 V as
well as wires found in distribution panels.
The clamp meters also feature a safe design that
can withstand a transient overvoltage of 8 kV in
case of a lightning strike.
Harmonic measurement function
The CM3286- 01 can measure
the har monic level, cont ent
percentage, and total harmonic
distor tion of voltag e or curr ent
for the 1st th rough 3 0th orders.
Android support scheduled for fall
2017. iOS support scheduled for 2018.
Prototype screen shown.
Instantly create reports

Specications
Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year
Measurement line
Measurement
items
AC voltage
AC current
Power
Harmonic
(CM3286-01only *2)
Other functions
Maximum rated
voltage to earth
Maximum rated
voltage to terminal
Crest factor
Operating and storage temperature
and humidity ranges
Dustproof and
waterproof
3
*
Single-phase, Three-phase (should be balanced with no distortion)
Voltage, Current, Voltage/ current peak, Active/ reactive/ apparent power, Power factor, Phase angle *
Active Energy Consumption (Single-phase)
[CM3286-01 only*
[Measurement range] 80.0 V to 600.0 V, Single range,
Basic accuracy 45 Hz - 66 Hz: ±0.7% rdg. ±3 dgt.
(Frequency characteristics: 45 Hz to 1 kHz, True RMS)
[Measurement range] 0.060 A to 600.0 A, 3 range,
Basic accuracy 45 Hz - 66 Hz: ±1.3% rdg. ±3 dgt.
(Frequency characteristics: 45 Hz to 1 kHz, True RMS)
[Single phase] 0.005 kW to 360.0 kW
Basic accuracy: ±2.0% rdg. ±7 dgt.
[Balanced three-phase 3-wire] 0.020 kW to 623.5 kW
Basic accuracy: ±3.0% rdg. ±10 dgt.
[Balanced three-phase 4-wire] 0.040 kW to 1080 kW
Basic accuracy: ±2.0% rdg. ±3 dgt.
Voltage/ current harmonic levels up to 30th, Content factor,
Total harmonic distortion ratio
[Phase angle *1] lead -180.0° to lag 179.9°, [Power factor]
-1.000 to 1.000 [Frequency] 45.0 Hz to 999.9 Hz, PEAK, phase
detection, max/min/avg value display, auto hold, electric meter
comparison, unbalanced 3-phase power estimate display, etc.
600 V AC (Measurement category IV)
1000 V AC (Measurement category III)
6 A/ 60 A range 3 or less, 600 A/ 600 V range 1.6 or less
-25°C to 65°C or less (-13.0°F to 149.0°F)
80% RH or less (no condensation, less than 40°C)
Grip: IP54 (EN60529), Jaw: IP50 (EN60529)
2
] Voltage/ current harmonic levels
1
, Frequency, Simple
(50/ 60 Hz, Power factor=1)
(50/ 60 Hz, Power factor=1)
(50/ 60 Hz, Power factor=1)
Standards
Power supply
Continuous operating time
Core jaw diameter
Dimensions and
Mass
*1) Phase angle obtained from zero cross of current / voltage.
*2)
Harmonic can be displayed by dedicated application software (Gennect Cross).
Android support scheduled for fall 2017. iOS support scheduled for 2018.
*3)
Although CM3286 is designed to resist the ingress of dust and dripping water, it is not entirely waterproof or dustproof.
Therefore, to prevent an electric shock, do not use it in a wet or dusty environment.
*The indi cated value for thre e-phase power i s based on t he assum ption of a balance d condition and si ne wave wit hout dist ortion a t 50/60 Hz. Acc urate me asure ment is no t possibl e on an unba lanced o r inverte r contr olled thre ephase lin e. Also, if th e phase (ze ro cross) ca nnot be de tected d ue to signi fican t wavefor m distor tion, i t cannot b e
measured nor displayed.
*The powe r factor / ph ase angle a re value s obtaine d from the z ero cros s of the cur rent an d voltage. If t he phase
(zero cros s) cannot be detec ted due to signif icant wavefor m distortion , it cannot be mea sured nor displ ayed.
Software specications
Interface
Name
Supported devices
Supported OS
*The Bluetooth® word mark a nd logos are regi stered trade marks owned by B luetooth SIG, Inc . and any use of suc h
marks b y HIOKI E.E. COR PORATION is und er license.
*Android, Go ogle Play and the Goog le Play logo are trad emarks of Googl e Inc.
*iOS is a re gistered tra demark of Cisco Tech nology, Inc. an d/or its affilia tes in the
United St ates and certa in other count ries.
*iPhone , iPad, iPad mini, iPa d Pro and iPod touc h are trademar ks of Apple Inc.
*Apple and the App le logo are trade marks of Apple Inc . App Store is a ser vice mark
of Apple Inc .
*Microsoft, Windows, Windows Vista, and Excel are either registered trademarks or
trade marks of Micro soft Corpora tion in the Unite d States and/or o ther countr ies.
*Other t rademarks a nd trade names a re those of their re spective own ers.
Safety: EN61010, EMC: EN61326
LR03 Alkaline battery ×2
Approx. 25 hours (Backlight OFF, Bluetooth® OFF)
Approx. 18 hours (Backlight OFF, Bluetooth
φ 46 mm (1.81 in)
82 mm (3.23in) W × 241 mm (9.49in) H × 37 mm (1.46in) D,
450 g (15.9 oz)
®
ON)
(CM3286-01 only)
Bluetooth® 4.0LE
GENNECT Cross (freeware)
TM
Android
(Only for Bluetooth® low energy models)
®
iOS (iPhone
5th generation iPod Touch
AndroidTM 4.3 or later, iOS 8 or later
5, 3rd generation iPad®, iPad miniTM, iPad ProTM,
®
or later)
Order code/ Options
AC CLAMP POWER METER CM3286
Model No. (Order Code) (Note)
CM3286
CM3286-01
Options (Test leads) Options (for L9257, L4930, L4931)
CONNECTION
CABLE SET
L4930
(1.2m)
Options (Clamp adapter)
CLAMP ON ADAPTER
9290-10
(1000 A AC, φ55 mm,
CT ratio of 10:1)
Built-in Bluetooth® wireless technology
TEST PIN
SET
L4938
EXTENSION
CABLE SET
L4931
(1.5m,
Expands the
length of the L4930)
BREAKER
PIN SET
L4939
TEST LEAD
L9207-10
Options (Test leads)
Accessories:
CONNECTION CORD L9257 ×1
CARRYING CASE C0203 ×1
LR03 Alkaline battery ×2
Instruction manual ×1
[CM328 6- 01 only]
Precautions Concerning Use of
Equipment That Emits Radio Waves
Tip options (Red/ Black: 1 each). Attaches to the tip of the banana plug cable.
ALLIGATOR
CLIP SET
L4935
TEST PIN
SET
L4932
Connection app (CM3286-01 only)
GENNECT
Cross
(freeware)
BUS BAR
CLIP SET
L4936
GRABBER
CLIP
9243
Accessories
CONNECTION
CORD L9257
(Combination of
L4930 and L4935)
MAGNETIC
ADAPTER SET
L4937
MAGNETIC
ADAPTER
9804
CARRYING
CASE C0203
*The Bluetooth® word mar k and logos are reg istered tra demar ks own ed by Blu etooth S IG, Inc. a nd any use of such m arks b y HIOKI E .E. CORPORAT ION is un der lice nse.
Note: Comp any na mes and P roduc t name s appea ring in t his cat alog are t rade mark s or regi stered trade mark s of vari ous co mpani es.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
All in form ation co rrec t as of May 19, 2017. All specic ations are subj ect to change wit hout not ice. CM3286_ tft _E1-75M Printe d in Japa n