Safety Notes
HIOKI L2001A981-02
Usage Notes
Specifications
L2001
L2001-01
PINCHER PROBE
Instruction Manual
EN
June 2020 Revised edition 2
L2001A981-02 20-06H
Warranty
Warranty malfunctions occurring under conditions of normal use in
conformity with the Instruction Manual and Product Precautionary
Markings will be repaired free of charge. This warranty is valid for
a period of one (1) year from the date of purchase. Please contact
the distributor from which you purchased the product for further
information on warranty provisions.
Introduction
Thank you for purchasing the Hioki L2001 and L2001-01 Pincher
Probe. To obtain maximum performance from the device, please
read this manual rst,and keep it handy for future reference.
Verifying Package Contents
When you receive the device, inspect it carefully to ensure that
no damage occurred during shipping. In particular, check the
accessories and connectors. If damage is evident, or if it fails to
operate according to the specications, contact your authorized Hioki
distributor or reseller.
Cleaning
To clean the device, wipe it gently with a soft cloth moistened with
water or mild detergent.
Never use solvents such as benzene, alcohol,
IMPORTANT
Repair
If the device seems to be malfunctioning, contact your authorized
Hioki distributor or reseller.
Disposal
Handle and dispose of the instrument in accordance with local
regulations.
acetone, ether, ketones, thinners or gasoline, as
they can deform and discolor the case.
Before using the instrument, be certain to carefully read the following
safety notes.
CAUTION
• Mishandling during use could damage to the device.
Be certain that you understand the instructions and
precautions in the manual before use.
• If persons unfamiliar with electricity measuring device
are to use the device, another person familiar with
such instruments must supervise operations.
Notation
In this manual, the risk seriousness and the hazard levels are classi
ed as follows.
Indicates a potentially hazardous situation
WARNING
CAUTION
IMPORTANT
that may result in death or serious injury to the
operator.
Indicates a potentially hazardous situation that
may result in minor or moderate injury to the
operator or damage to the device or malfunction.
Indicates information related to the operation of
the device or maintenance tasks with which the
operators must be fully familiar.
Indicates cautions and hazards. When the symbol
is printed on the device, refer to a corresponding
topic in the Instruction Manual.
Indicates prohibited actions.
Indicates the action which must be performed.
Symbols for various standards
This symbol indicates that the product conforms to
regulations set out by the EC Directive.
WEEE marking: This symbol indicates that the
electrical and electronic appliance is put on the EU
market after August 13, 2005, and producers of
the Member States are required to display it on the
appliance under Article 11.2 of Directive 2002/96/
EC (WEEE).
Follow these precautions to ensure safe operation and to obtain the
full benets of the various functions.
WARNING
Installing the instrument in inappropriate locations may
cause a malfunction of instrument or may give rise to an
accident. Avoid the following locations.
• Exposed to direct sunlight or high temperature
• Exposed to corrosive or combustible gases
• Exposed to water, oil, chemicals, or solvents
• Exposed to high humidity or condensation
• Exposed to a strong electromagnetic eld or
electrostatic charge
• Exposed to high quantities of dust particles
• Near induction heating systems (such as highfrequency induction heating systems and IH cooking
equipment)
• Subject to vibration
Precautions during shipment
Use the original packing materials when transporting the device, if
possible. Pack the device so that it will not sustain damage during
shipping, and include a description of existing damage. We do not
take any responsibility for damage incurred during shipping.
Overview
The L2001 and L2001-01 Pincher Probe is a pincher-type probe
that can be connected directly to measurement terminals (labeled
“UNKNOWN”) on Hioki LCR meters, impedance analyzers, and
Capacitance HiTesters. Among the targets it can measure are chip
components. Each of the arm tips features a two-terminal design.
* The L2001 and L2001-01 provide different characteristic
impedance from each other. Please connect a model specied to
be compatible with an instrument to be operated.
Parts Names
Connection cable
Red (HIGH)
Lock levers
Pincher arms
Black (LOW)
Contact tips
(Standard part: IM9901)
Connection box
BNC connectors
Open correction jig
Operating environment Indoors, altitude up to 2000 m (6562 ft.)
Operating temperature
and humidity
Storage temperature
and humidity
Dimensions Connection cable length:
Mass Approx. 190 g/ 6.7 oz.
Product warranty period 1 year
Connection to
measuring instrument
Contact with sample 2-terminal design
Tip spacing 0.3 mm/ 0.01” to approx. 6 mm/ 0.24”
Measurement sample
size (recommended)
Characteristic
impedance
Maximum input voltage ±42 V peak (AC+DC)
Maximum input current ±1 A peak (AC+DC)
Usable frequency range DC to 8 MHz (model L2001)
Residual parameter
values
(reference values)
Accessories • Instruction Manual 1
Options • Model IM9901 Contact Tips 1 set
0°C to 40°C (32°F to 104°F),
80%RH or less (non-condensating)
-10°C to 55°C (14°F to 131°F)
80%RH or less (non-condensating)
approx. 730 mm /28.74” (Treated as 1 m
during cable length correction.)
Pincher arms: approx. 19W×19H×146D
mm/ 0.75”W×0.75”H×5.75”D
(Excluding protruding parts)
Connection box:
approx. 96.5W×45.5H×36.5D mm
/3.8”W×1.79”H×1.44”D
(Excluding protruding parts)
Connector, cable, etc.: Not covered by the
warranty
4-terminal-pair design
Connectors: BNC
(connector spacing: 22 mm/ 0.87”)
Model IM9901 Contact Tips (with standard
tips): 1608 to 5750 (JIS)/ 0603 to 2220 (EIA)
Model IM9902 Contact Tips (with optional
tips): 0603 to 5750 (JIS)/ 0201 to 2220 (EIA)
50 Ω (model L2001)
75
(model L2001-01)
Ω
DC to 5 MHz (model L2001-01)
Capacitance: 1 pF or less
Inductance: 0.5 µH or less
Resistance: 50 m
• Open correction jig
Dimensions of measurable samples:
1608 to 5750 (JIS)/
• Model IM9902 Contact Tips 1 set
Dimensions of measurable samples:
0603 to 5750 (JIS)/
0603 to 2220 (EIA)
0201 to 2220 (EIA)
or less
Ω
,
1
Effect on measurement accuracy
The following table gives the accuracy when combined with the
connected measuring instrument. The base accuracy depends on
the connected instrument.
: spec. ×3
1.001 MHz -
Freq.
Range
100 M
10 M
1 M
100 k
10 k
1 k
100
10
100 m
: spec. ×1
4 Hz - 100 Hz -
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
1
Ω
Ω
: spec. ×2.5
1.001 kHz - 10.01 kHz - 100.1 kHz -
Connection Method
HIOKI L2001A981-02
Inspection Before Use
Before using the device, verify that it operates normally to ensure
that no damage occurred during storage or shipping. If you nd any
damage, contact your authorized Hioki distributor or reseller.
CAUTION
When disconnecting the BNC connector, be sure
to release the lock before pulling off the connector.
Forcibly pulling the connector without releasing the lock,
can damage the BNC connector.
Connect the Pincher Probe’s connection box to the measuring
instrument.
Align the connection box’s BNC connectors with
1
the measuring instrument’s BNC connectors and
insert.
Lock levers
Connection box
BNC connectors
BNC connectors
Correction Method
Open correction and short correction are performed in order to
increase measurement precision. The correction method varies with
the measuring instrument with which the probe is being used. Refer
to the instruction manual that came with the instrument.
When using a measuring instrument that can
IMPORTANT
Open Correction
You will need: Open correction jig
Check the length of the sample being measured.
1
Example: If the sample is 0402 (EIA)
Select the position on the open correction jig
2
whose label corresponds to the length of the
sample being measured, insert the tips of the
pincher arms as far as they will go, and squeeze
the arms together.
perform cable length correction, set the cable
length to 1 m.
1.0 mm
Length
Metallized electrode surfaces
Width
0.5 mm
Scale
Open correction jig
Perform correction with the measuring instrument.
2
Place the C-shaped part of the open correction jig
around the pincher arms to hold the tips together
as necessary.
Measurement Method
CAUTION
• If using the L2001 or L2001-01 in combination with the
DC Bias Voltage Unit 9268-10 or 9268, respectively,
do not short-circuit the contact tips of the device with
DC voltage (DC bias) applied. Doing so will cause
the device or the instrument to which the device is
connected to be damaged.
• To prevent damage to the device, do not subject the
tips of the pincher arms to mechanical shock.
Squeeze the pincher arms together around the sample and read the
measured value.
Contact Tip Replacement Method
CAUTION
• Attach the tips with an appropriate amount of tightening
torque. Use of an inappropriate tightening torque may
damage the probe or cause poor contact.
• When turning the screws with a screwdriver, support
the arm from the bottom so as to prevent an excessive
amount of force from being applied to the base.
When installing the optional IM9902 tips or when wear or other
factors have rendered the contact tips unusable, they can be
replaced using the following method:
You will need: No. 0 precision Phillips head screwdriver, replacement
contact tips
Model IM9901
(standard)
Loosen and remove the two screws with the
1
screwdriver.
Driver
Contact tip
Model IM9902
(optional)
Line up
Twist the lock levers to secure the connection box
2
to the measuring instrument.
Lock levers
Perform correction with the measuring instrument.
3
Short Correction
Squeeze the pincher arms together so that the tips
1
are shorted.
Measure an impedance before performing short
correction. If the measured value is comparatively
unstable, perform the following method.
Metal conductor
To ensure contact stability, hold a metal conductor
with a thickness of 0.3 mm or more between the
contact tips.
IMPORTANT
Sample
Operation position
• Apply an appropriate amount of force at the
position shown in the gure to squeeze the
pincher arms around the sample. The contact
resistance value will vary with the amount of
force applied. The effect of contact resistance
is particularly pronounced when measuring
low-impedance elements or performing short
correction.
• Clean the tips of the pincher arms and the
surface of the sample before performing short
correction or making a measurement. The
presence of dirt could result in poor contact,
making accurate measurement impossible.
• It is recommended to use guarding when
performing open correction and when measuring
high-impedance elements as those operations
are particularly susceptible to the effects of
external induced noise and stray capacitance.
Guarding methods include making measurements
on a metal plate that has been connected to
the guard terminals. For more information, refer
to the instruction manual that came with the
measuring instrument being used.
Support with nger or other
object.
Pull each contact tip in the direction indicated by
2
the arrow to remove it.
Screws (M1.4×3)
Contact tip
PCBs
Attach the replacement contact tips.
3
When you do so, align the holes in each tip with the
holes in the corresponding pincher arm.
Align the position of the top and bottom tips.
4
Tighten the two screws with the screwdriver.
5
Tightening torque: 0.06 N•m
PCB xed part
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