Warranty
Warranty malfunctions occurring under conditions of normal use in con-
formity with the Instruction Manual and Product Precautionary Mark-
ings will be repaired free of charge. This warranty is valid for a period
of three (3) years from the date of purchase. Please contact the distrib-
utor from which you purchased the product for further information on
warranty provisions.
Introduction
Thank you for purchasing the HIOKI Model 9268, 9268-01,9268-10
DC BIAS VOLTAGE UNIT. To obtain maximum performance from
the product, please read this manual first, and keep it handy for fu-
ture reference.
The 9268, 9268-01 DC BIAS VOLTAGE UNIT is an optional unit,
which can be connected between a HIOKI LCR, Z HiTESTER and
the fixture, The 9268-10 DC BIAS VOLTAGE UNIT is an optional
unit, which can be connected between a HIOKI IM Series (LCR
Meters, Impedance Analyzers) and the fixture,to allow a DC bias
voltage to be applied to a capacitor or other component.
The internal circuits of 9268, 9268-01 and 9268-10 are all different.
Please use the correct circuit specified by the tester to be connected.
Please check a HIOKI catalog for instruments to which this product can
be connected.
Initial Inspection
When you receive the product, inspect it carefully to ensure that
no damage occurred during shipping. If damage is evident, or if
it fails to operate according to the specifications, contact your
dealer or HIOKI representative.
Preliminary Checks
• Before using the product the first time, verify that it operates
normally to ensure that the no damage occurred during stor-
age or shipping. If you find any damage, contact your dealer
or Hioki representative.
Maintenance and Service
• To clean the product, wipe it gently with a soft cloth moist-
ened with water or mild detergent. Never use solvents such
as benzene, alcohol, acetone, ether, ketones, thinners or
gasoline, as they can deform and discolor the case.
• If the product seems to be malfunctioning, contact your
dealer or Hioki representative. Pack the product carefully so
that it will not be damaged during shipment, and include a
detailed written description of the problem. Hioki cannot be
responsible for damage that occurs during shipment.
Follow these precautions to ensure safe operation and to obtain
the full benefits of the various functions.
Safety Symbol
The following symbols in this manual indicate the relative importance of
cautions and warnings.
Symbols for Various Standards
DC bias voltage unit.
Plug the fixture into the measurement terminals (UNKNOWN) of the
tester, with the product name up. Fasten it in place with the left and right
fixing levers.
Test fixture
Connect the test fixture (or measurement probe) to the measurement ter-
minals (UNKNOWN) of the tester, so that the H and L terminals match.
External DC bias power supply
Make sure that the external DC bias power supply is turned off, and
then plug the cable into the external DC bias apply terminals (BNC ter-
minal) of the 9268, 9268-01, 9268-10 to connect.
• A separate external power supply for the DC bias voltage is also
required.
• The DC bias power supply cannot be controlled by the main unit of
the LCR HiTester.
For safety reason, follows the procedure carefully.
1.To eliminate measurement errors due to the internal circuit of the DC
bias unit, before carrying out measurement, always carry out open-
circuit compensation and short-circuit compensation. Carry out the
open-circuit compensation and short-circuit compensation with the
9268 (or 9268-01, 9268-10) and fixture (or measurement probe),
bias application cable and external DC bias power supply (output
voltage is set to 0 V) connected.
2.Fix the sample in the fixture.
3.Set the output voltage of the external DC bias supply to 0 V, then
apply the voltage. Next, increase the output voltage setting
progressively to reach the required setting.
4.Measure the DC bias characteristics of the sample.
5.Gradually decrease the output voltage of the external DC bias
supply until it reaches 0 V.
6.Remove the sample from the fixture.
• Since the IM3570 is not be able to compensate the short-circuit
while it is connected to the DC bias unit, residual impedance of the
specification will be added as an error.
• When carrying out open-circuit compensation or short-circuit
compensation using DC bias unit connected to IM Series, turn OFF
the DC setting of the correction range of IM Series.
• DC bias unit is not a four-terminal pair structure. When it is in
combination with the test fixture probes that is four-terminal pair
structure, measurement error increases or the measurement results
may be affected by the placement of the probe.
Overview
Specifications
Measurement
frequency range 42 Hz to 5 MHz (9268-10 : 40 Hz to 8 MHz )
When connected to Model 3522 or 3522-50:
100.1 Hz to 100 kHz
Maximum apply
voltage Between the terminals of H-L and external DC
bias apply terminal :
±40 VDC (9268, 9268-10), ±4 VDC (9268-01)
Maximum voltage to
earth
Between the H terminal and chassis, external
DC bias terminal and chassis :
±40 VDC (9268, 9268-10), ±4 VDC (9268-01)
Between the L terminal and chassis : ±0.5 VDC
Internal resistance
(reference value) 1 kΩ (9268, 9268-10),100 Ω (9268-01)
Residual parameters
(reference value) Residual impedance : 50 mΩ+ 2 x π x Fre-
quency x 50 nH
Floating capacitance : 2 pF max. (at 100 kHz)
Measurement
accuracy
(9268-01)
Specifications of the LCR HiTester x α
9268, 9268-01, 9268-10
DC BIAS VOLTAGE UNIT
Instruction Manual
Aug. 2018 Revised edition 10 Printed in Japan
9268A980-10 18-08H
EN
Coefficient α
fL: test frequency [kHz] fH: test frequency [MHz]
Range 100 kHz or less 100.1 kHz or more
1 kΩor less 1.5 1.5
10 kΩ or more 1.5+0.2xfL5+1xfH
Dimensions and
Mass
Approx.116W x 45H x 55D mm
(4.57”W x 1.77”H x 2.17”D)
(excluding protrusions),
9268: Approx.250 g ( 8.8 oz.), 9268-01: Approx.
270 g (9.5 oz.), 9268-10: Approx.240 g ( 8.5 oz.)
Operating tempera-
ture and humidity
range 0 to 40°C (32 to 104
°F)
, 80%RH or less
(with no condensation)
Storage tempera-
ture and humidity
range -10°C to 55°C (14 to 131
°F)
, 80%RH or less
(with no condensation)
Operating
environment Indoors, Pollution Degree 2,
altitude up to 2000 m (6562-ft.)
Applicable Stan-
dards EN61010
Accessory Instruction Manual
Product warranty
period 3 years
Inspection and Maintenance
Safety
Mishandling during use could result in injury or death, as
well as damage to the product. Be certain that you under-
stand the instructions and precautions in the manual
before use. We disclaim any responsibility for accidents
or injuries not resulting directly from product defects.
In the manual, the symbol indicates particularly important
information that the user should read before using the product.
Indicates DC (Direct Current).
Indicates that incorrect operation presents a significant haz-
ard that could result in serious injury or death to the user.
Indicates that incorrect operation presents a possibility of
injury to the user or damage to the product.
Advisory items related to performance or correct operation
of the product.
Indicates the Waste Electrical and Electronic Equipment
Directive (WEEE Directive) in EU member states.
Indicates that the product conforms to regulations set out
by the EU Directive.
o not store or use the product where it could be exposed
ect sunlight, high temperature or humidity, or conden-
er such conditions, the product may be damaged
d insulation may deteriorate so that it no longer meets
ations. roduct where it maybeexposedtocorrosive
combustible gases. The product may be damaged.
his product is not designed to be entirely water- or dust-
To avoid damage, do not use it in a wet or dusty envi-
nt.
avoid damage to the product, protect it from vibration or
ck during transport and handling, and be especially care-
avoid dropping.
f the fixture has gotten seriously wet, oily, or dusty, stop us-
ing it and send it for service at an approved HIOKI service
facility.
or using the tester to which thetest fixture is connected and
fixture, refer to Instruction Manual of them.
hen the DC bias unit is attached to the tester, be careful
not to put any weight on it. This could lead to damage both
the tester and to the DC bias unit.
he maximum DC bias voltage which can be applied to the
9268, 9268-10 is 40 VDC. The maximum DC bias voltage
n be applied to the 9268-01 is 4 VDC. If a DC bias
age greater than this limit is applied continuously, the
s may be damaged.
der to avoid electric shock accident, be absolutely sure
not to touch the test terminals while the DC bias voltage is
lied to them.
f you disconnect the sample under test from the test termi-
with the DC bias voltage still being supplied, then the
test sample is leftcharged, which is verydangerous.In order
void electric shock accident, be absolutely sure to dis-
ge the test sample.
t short circuit between the clips of the test probes with
the DC bias voltage still being supplied. Doing so may dam-
age the probes or cause a short circuit accident.
ot apply a DC bias voltage of more than the withstand
age to the sample. This could lead to damage to the
r, the DC bias unit, and sample.
Be careful about the polarity when connecting together, the
ple to be tested, and the DC bias power supply.
kes a little time for the DC voltage which is being sup-
plied to the sample under test to reach the set voltage, so
should wait for a certain stabilization time period (which
depends upon the sample) before performing testing. Be
m testing before this stabiliza-
on time period has elapsed, the results will not be reliable.
er testing is completed, drop the voltage of the external
DC bias power supply to zero, and removethe sample under
m the probes after having discharged any electric
ge which may have built up.
f you have removed the sample under test from the probes
without first having discharged the accumulated electric
ge, you should be careful to do so immediately.
hen using with Model 3522 or 3522-50 turn OFF the
EXT.DC BIAS setting.Switching the EXT.DC BIAS setting
ON can cause the LCR meter to malfunction.
hen using with IM Series, press the SET EXT button in the
DC bias setting of the IM Series.
hen connecting or disconnecting this product from the
ected device, plugging it straight to the measurement
inal of the connected device. If the connection is incor-
t, connecting terminal is deformed and may affect the
asurement.
Connecting the DC Bias Volt-
age Unit and Test Fixture
Measurement Method
External DC
bias apply
terminal
Connecting terminals
Measurement terminals
Fixing lever
Fixture
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