KYORITSU 8325F - Manual

1. SAFETY WARNINGS
This instrument has been designed and tested according
to IEC61010: Safety requirements for Electronic Measuring
Apparatus, and delivered in the best condition after passing
quality control tests. This instruction manual contains warnings
and safety rules which have to be observed by the user to
ensure safe operation of the instrument and to maintain it in safe
condition. Therefore, read through these operating instructions
before using the instrument.
 WARNING
● Read through and understand instructions contained in this
manual before using the instrument.
● Keep the manual at hand to enable quick reference
whenever necessary.
● The instrument is to be used only in its intended applications.
● Understand and follow all the safety instructions contained in
the manual.
It is essential that the above instructions are adhered to. Failure
to follow the above instructions may cause injury, instrument
damage and/or damage to equipment under test.
The symbol  indicated on the instrument, means that the user
must refer to the related parts in the manual for safe operation of
the instrument. It is essential to read the instructions wherever the

symbol appears in the manual.
 DANGER is reserved for conditions and actions that are
likely to cause serious or fatal injury.
 WARNING is reserved for conditions and actions that can
cause serious or fatal injury.
 CAUTION is reserved for conditions and actions that can
cause injury or instrument damage.
Instruction Manual
Voltage Sensor Series
KEW 8325F
Flicker Sensor
 DANGER
● Never make measurement on a circuit in which the electrical
potential exceeds AC600V.
● Do not make measurements when a thunder is rumbling.
Stop measurements immediately and disconnect the
instrument from the devices under test.
● Do not attempt to make measurements in the presence of
flammable gasses.
Otherwise, the use of the instrument may cause sparking,
which can lead to an explosion.
● Be especially careful about the possible shorting where the
measured conductor is not insulated.
● Never attempt to use the instrument if its surface or your
hand is wet.
● Remove the Measuring terminals from the circuit under test
before connecting / inserting the Output connector.
● Do not exceed the maximum allowable input of any
measuring range.
● Confirm a proper operation of this sensor on a well-known
power source before taking countermeasures against the
measured results.
 WARNING
● Never attempt to make any measurement if any abnormal
conditions, such as a broken cover or exposed metal parts
are present on the instrument.
● Do not install substitute parts or make any modification to the
instrument. Return the instrument to your local KYORITSU
distributor for repair or re-calibration in case of suspected
faulty operation.
● Keep your fingers and hands behind the safety barrier during
measurements.
 CAUTION
● Do not step on or pinch the cord, or it may damage the jacket
of cord.
● Grasp the connector to remove the output terminal from the
instrument.
● Put the instrument on a stable place where is free from
vibrations or shocks.
● Firmly fix the Sensor unit and Measuring terminal so that
they don't fall off due to the weight of sensor or test leads.
● Keep away Floppy Disks, Magnetic Cards, PCs and Displays
from the magnet, which is attached to the backside of the sensor.
● Do not expose the instrument to direct sunlight, high
temperatures, humidity or dew.
● Not to give shocks, such as vibration or drop, which may
damage the instrument.
● Use a damp cloth with neutral detergent for cleaning the
instrument. Do not use abrasives or solvents.
Safety symbols
 Must refer to the instructions in the manual for safety
 Indicates a Instrument with double or reinforced insulation
 Indicates AC
◊ Measurement categories(Over-voltage categories)
To ensure safe operation of measuring instruments, IEC 61010
establishes safety standards for various electrical environments,
categorized as CAT.I to CAT.IV, and called measurement
categories. Higher-numbered categories correspond to electrical
environments with greater momentary energy, so a measuring
instrument designed for CAT.III environments can endure
greater momentary energy than one designed for CAT.II.
CAT.I : Secondary electrical circuits connected to an AC
electrical outlet through a transformer or similar device.
CAT.II : Primary electrical circuits of equipment connected to an
AC electrical outlet by a power cord.
CAT.III : Primary electrical circuits of the equipment connected
directly to the distribution panel, and feeders from the
distribution panel to outlets.
CAT.IV : The circuit from the service drop to the service
entrance, and to the power meter and primary
overcurrent protection device (distribution panel).
2. FEATURES
• This is a Voltage Sensor designed for KEW6310 to measure AC
voltage up to 600V.
• Use with Power Quality Analyzer (KEW6310) enables flicker
measurement according to IEC61000-4-15 (Flickermeter –
Functional and design specifications).
• Designed to following international safety standards:
IEC61010-1 Measurement Category (CAT.) III 600V
IEC61010-031 Requirements for hand-held probes
• Internal differential amplifier is equipped, enabling floating
voltage measurement.
3. SPECIFICATIONS
• Max. input voltage AC600Vrms, 848.4V Peak
• Input system Differential input (can measure floating
voltages)
• Output voltage AC600mV/ AC600V (Output/Input: 1mV/ V)
• Measuring ranges and accuracy
Measuring Range Frequency range Accuracy
6 ~ 600V
50/ 60Hz ±0.5%rdg±0.1mV
40Hz ~ 1kHz ±1.5%rdg±0.2mV
• Temperature and Humidity Ranges(guaranteed accuracy):
23ºC±5ºC, relative humidity 85%or less (without condensation)
• Operating Temperature and Humidity Ranges:
0~40ºC, relative humidity 85%or less (without condensation)
• Storage Temperature and Humidity Ranges
-20~60ºC, relative humidity 85%or less (without condensation)
• Power supply (supplied via output terminal)
DC : ±(5V±10%)
• Current consumption 1mA (Typ.)
• Input impedance Approx.3.2MΩ
• Output impedance Approx.1kΩ
• Location for use Altitude up to 2000m, Indoors
• Safety Standard
IEC/EN61010-1:2001 Measurement Category (CAT.) III 600V
Pollution Degree 2
IEC/EN61010-031:2002
EN61326:2001 (EMC Standard)
• Withstand Voltage AC5350Vrms (50/60Hz)for 5sec.
(between Measuring terminal and
enclosure)
• Insulation Resistance 50MΩor greater at 1000V
(between Measuring terminal and
enclosure)
• Dimension & weight 87(L) x 26(W) x 17(D)mm (excluding
protrusions)
Approx. 135g
• V,COM Cable length Approx. 0.9m
• Output Cable length Approx. 1m
• Output Connector MINI DIN 6PIN
• Accessories Instruction manual
• Option 7197(small Alligator clip)
4. HOW TO USE/ SENSOR LAYOUT
Connect the Output connector to the Input terminal (A1) of the
Power Quality Analyzer (KEW6310).
This sensor operates only at A1 terminal. Do not use 2pcs or
more of KEW8325F at the same time.
Clip the V and COM measuring terminals onto the conductor
under test.
Start KEW6310 and select Flicker measurement at “ QUALITY ”
menu.
Detailed operating instructions are given in the Instruction
manual for KEW6310.
5. DIN Plug pin assignment
1: +DC power supply Pin (+5V)
2: -DC power supply Pin (-5V)
3: GND Pin
4: No use
5: Output signal Pin
6: Sensor recognition pin
(Resistance between Pin 3 and Pin 6: 20kΩ）
* Above figure shows the pin assignment seeing the Clamp sensor
from output connector part. The figure of the pin assignment of
connection terminal is symmetrical to above figure.
07-08 92-1935
DISTRIBUTOR
Kyoritsu reserves the rights to change specifications or designs
described in this manual without notice and without obligations.
KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.,
TOKYO, JAPAN
Measuring terminal
(COM) (V)
Barrier
Test lead
Power Quality Analyzer (KEW6310)
Output cable
Sensor
Output connector
Output signal Power supply
Match the arrow marks