Hioki FT6381 User manual

CAT Ⅳ600 V
CLAMP ON EARTH TESTER
FT6380, FT6381
Field Measuring Instruments
Easy pole earth resistance measurement
with super slim jaw
0.02 Ω to 1600 Ω wide measurement range for earth resistance measurement
1.00 mA to 60.0 A covering small leakage current to load current
Easy Open Jaw
Light Weight
High Accuracy
FT6381 Data transfer to AndroidTM phones using Bluetooth®wireless technology.*
Real time data transfer, automatic report generation on AndroidTM phone.
Please download and install the "FT6381 Communication Software" from the Google
PlayTM store in order to use the wireless connection function with an AndroidTM phone.
The software is free, but the user is responsible for any Internet connection costs incurred
in the course of downloading or using the application.
*
For multi grounded systems only
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

2
Get Things Done with Super Slim Jaws
Easy clamping!
Open jaws easily with just two  ngers.
Only half the grip power is needed compared to
typical clamp earth testers.
Clamp at the narrowest point!
Now you can easily clamp the earth cable on the pole
without digging. The dramatically slim 0.79 inch (20mm)
jaws let you  nish your job easily and ef ciently.
LCD with beautiful back light
No wait time after powering on.
Start measuring instantly without zero-
calibration.
Quick Start!
Alarm Function
Set the alarm to audibly and visually notify
yourself that the resistance or current value
exceeds the threshold.
0.87 inch
High Accuracy and Repeatability
Well-designed magnetic shields eliminate
the leakage fl ux between the two cores that
often affect measurement accuracy.
0.79 inch
With the bright back light, you can easily
read the measurement value even in dark
locations.
1.26 inch
(32 mm)
(22 mm)
(20 mm)
▼
Large storage capacity
(up to 2,000 data)
You can store up to 2,000 measurement
values in the  eld and recall them in your
of ce later.
Memory number
Transmission Towers
Hazardous Storage Tanks
Applications * The illustration may differ slightly from the  eld application.

3
Measurement Principle FT6380/6381 can measure Multi-Grounded systems.
Voltage Injection
Current Measurement
Rx R1R2R3R4
1. The voltage transducer injects a de ned voltage into the
multi-grounded system.
2. From the de ned voltage and measured current,
the total
circuit loop resistance is calculated in the
following equation.
In a typical multi-grounded system, the parallel
resistance value is small enough to be ignored
and the equation as referred on the left can be
simulated as follows.
Rx = V
I
Rx + V
I
=
1
+ + +
11 1 1
R1 R2 R3 R4
. . .
Clamp on the earth cable. The instrument has two cores for voltage injection and current measurement.
In multi-grounded system, the larger the number of grounding
poles, the more accurate the measured value. Where the
number of grounding poles are few, if just only one carries a very
small resistance (e.g., 1Ω), the measured value will be close to
the true value. On the other hand, poles with large resistances
(e.g., 100Ω) will result in greater measurement uncertainties.
Measurement Examples
Actual measured value
Automatic Report Generation For the U.S./Canada/Europe/Japan only
Model FT6381 can create reports instantly in the  eld using an AndroidTMphone via a Bluetooth® wireless technology.
Field
After making a report, you can see it on the
AndroidTM phone or send the data to your PC at
the of ce via e-mail.
Automatic Report Generation on your AndroidTM phone
Report includes the Measurement Value, Date and
Time, Map with GPS information and Pass/Fail
information
Via e-mail
Real time data transfer
12
3Download data Offi ce
1st 2 nd
3 rd
Stored Data
Store multiple
measurement values
1
Select all the data for
the report
2
Instant summary report generation from
multiple data
3
Actual measured value Actual measured value
Single Point Report
Summary Report

All information correct as of Jul. 25, 2012. All specications are subject to change without notice. FT6380E4-27E Printed in Japan
Note: Company names and Product names appearing in this catalog are trademarks or registered trademarks of various companies.
Specications
Display Digital/ LCD, max. 2000 digits Display update rate: 2 times / s
Range switching Auto-range
Maximum conductor diameter for
measurement ø 32 mm (1.26 in)
Power supply
LR6 alkaline battery × 2
Continuous operating time: Approx. 35 hours With display backlight off, Bluetooth OFF (FT6381)
Auto power save Power save state when 5 minutes have elapsed since the last operation
Operating temperature and humidity -10°C (14°F) to 50°C (122°F), 80 % rh or less (non-condensation)
Storage temperature and humidity -20°C (-4°F) to 60°C (140°F), 80 % rh or less (non-condensation, except for the battery)
Dustproof and waterproof IP40 (EN60529) With Jaws Closed
Maximum rated voltage to earth 600 VAC measurement category IV (anticipated transient overvoltage 8000 V)
Dielectric strength Between the Case and the Clamp core 7400 Vrms 1 minute
Maximum input current 100 A AC continuous, 200 A AC for 2 minutes (50/60 Hz)
Conductor position effects Within ±0.5% rdg. (using the center of the sensor as the reference, in all positions)
Magnetic eld interference 10 mA or less in an external magnetic eld of 400 A/m at 50/60 Hz AC
Applicable standards Safety: EN61010 EMC: EN61326
Wireless (For FT6381 only): FCC Part 15.247, IC RSS-210, EN 300 328, 301 489-1, 301-489-17
Dimensions, Mass Approx. 73 mm (2.87 in) W × 218 mm (8.58 in) H × 43 mm (1.69) D , Approx 620 g (21.9 oz)
Accessories Carrying Case×1, Resistance Check Loop×1, Strap×1, Instruction Manual×1, Alkaline Battery(LR6)×2
FT6381 Interface
Interface Bluetooth® v2.1+EDR
Communication Distance 10 m (Class 2.1)
Communication Protocol SPP (Serial Port Prole)
Compatibility Smartphone/ Tablet (AndroidTM)
Applicable OS AndroidTM 2.1 or later
Range Measurement Range Resolution Frequency Range Accuracy
Filter off Filter on
20.00 mA 1.00 mA to 20.00 mA 0.01 mA 45 ≤f ≤ 66Hz ±2.0 % rdg. ±0.05 mA ±2.0 % rdg. ±0.05 mA
30 ≤ f < 45Hz, 66 < f ≤ 400Hz ±2.5 % rdg. ±0.05m A —
200.0 mA 18.0 mA to 200.0 mA 0.1 mA 45 ≤ f ≤ 66Hz ±2.0 % rdg. ±0.5 mA ±2.0 % rdg. ±0.5 mA
30 ≤ f < 45Hz, 66 < f ≤ 400Hz ±2.5 % rdg. ±0.5m A —
2.000 A 0.180 A to 2.000 A 0.001 A 45 ≤ f ≤ 66Hz ±2.0 % rdg. ±0.005 A ±2.0 % rdg. ±0.005 A
30 ≤ f < 45Hz, 66 < f ≤ 400Hz ±2.5 % rdg. ±0.005 A —
20.00 A 1.80 A to 20.00 A 0.01 A 45 ≤ f ≤ 66Hz ±2.0 % rdg. ±0.05 A ±2.0 % rdg. ±0.05 A
30 ≤ f < 45Hz, 66 < f ≤ 400Hz ±2.5 % rdg. ±0.05 A —
60.0 A 18.0 A to 60.0 A 0.1 A 45 ≤ f ≤ 66Hz ±2.0 % rdg. ±0.5 A ±2.0 % rdg. ±0.5 A
30 ≤ f < 45Hz, 66 < f ≤ 400Hz ±2.5 % rdg. ±0.5 A —
Current Mode Accuracy guaranteed for 1 year. Temperature and humidity for guaranteed accuracy:23±5°C 80%rh or less (no condensation)
Range Measurement Range Resolution Accuracy
0.20 W0.02 Wto 0.20 W0.01 W±1.5 % rdg. ±0.02 W
2.00 W0.18 Wto 2.00 W0.01 W±1.5 % rdg. ±0.02 W
20.00 W1.80 Wto 20.00 W0.01 W±1.5 % rdg. ±0.05 W
50.0 W18.0 Wto 50.0 W0.1 W±1.5 % rdg. ±0.1 W
100.0 W50.0 Wto 100.0 W0.1 W±1.5 % rdg. ±0.5 W
200.0 W100.0 Wto 200.0 W0.2 W±3.0 % rdg. ±1.0 W
400 W180 Wto 400 W1 W±5 % rdg. ±5 W
600 W400 Wto 600 W2 W±10 % rdg. ±10 W
1200 W600 Wto 1200 W10 W±20 % rdg.
1600 W1200 Wto 1600 W20 W±35 % rdg.
Resistance mode Accuracy guaranteed for 1 year, Temperature and humidity
for guaranteed accuracy:23±5°C 80%rh or less (no condensation)
Frequency of measurement Approx. 2,400Hz.
The application supports Android OS 2.1 or later, but proper operation is not
guaranteed
on all Android. handsets. For more information about the devices on
which proper operation
has been conrmed, see Hioki’s website.
Current measurement specications
Alarm function
Alarm Hi/Lo
Separate Hi/Lo settings for resistance measurement
and current measurement
Resistance measurement: Hi.AL/Lo.AL
Current measurement: Hi.AL/Lo.AL
Alarm threshold
setting range
Resistance measurement: 0.02 Ω to 1,600 Ω
Resistance measurement initial value: 25.0 Ω
Current measurement: 0.05 mA to 200.0 mA,
0.201 A to 60.0 A
Current measurement initial value: 1.00 mA
Resistance Check Loop
Carrying Case
Accessories
· Bluetooth®is a trademark of Bluetooth SIG, Inc. and licensed for use by HIOKI E.E. CORPORATION.
· Android™ Google Play™ is a registered trademarks of Google, Inc.
Registered Trademarks