100:1 PROBE
Instruction Manual
Dec. 2018 Revised edition 11
9666A980-11 18-12H
9666
barcode(35×7 mm)
EN
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 Model 9666 100:1 PROBE.
To obtain maximum performance from the product, please read
this manual rst, and keep it handy for future reference.
Safety Notes
DANGER
This product is designed to conform to IEC 61010
Safety Standards and has been thoroughly tested
for safety prior to shipment. However, using the
product in a way not described in this manual may
negate the provided safety features.
Before using the product, be certain to carefully
read the following safety notes:
Symbols afxed to the Instrument
Indicates cautions and hazards. When the symbol is
printed on the product refer to a corresponding topic in
the Instruction Manual.
Indicates a product that has been protected throughout
by double insulation or reinforced insulation.
Notations
In this manual, the risk seriousness and the hazard levels are
classied as follows.
DANGER
Indicates an imminently hazardous situation that
will result in death or serious injury to the operator.
WARNING
Indicates that incorrect operation presents a
signicant hazard that could result in serious
injury or death to the user.
Indicates the compulsory action.
Measurement categories
To ensure safe operation of measuring instruments, IEC 61010
establishes safety standards for various electrical environments,
categorized as CAT II to CAT IV, and called measurement categories.
DANGER
•Using a measuring product in an environment
designated with a higher-numbered category than
that for which the product is rated could result in
a severe accident, and must be carefully avoided.
•Never use a measuring product that lacks category
labeling in a CAT II to CAT IV measurement environment.
Doing so could result in a serious accident.
This product complies with CAT II safety requirements.
CAT II: When directly measuring the electrical outlet receptacles
of the primary electrical circuits in equipment connected to an
AC electrical outlet with a power cord (portable tools, household
appliances, etc.)
CAT III: When measuring the primary electrical circuits of heavy
equipment (fixed installations) connected directly to the distribution
panel, and feeders from the distribution panel to outlets
CAT IV: When measuring the circuit from the service drop to the
service entrance, and to the power meter and primary overcurrent
protection device (distribution panel)
T
Distribution panel
Service drop
CAT IV CATⅢ
CAT II
Internal wiring
Outlet
Fixed installation
Power meter
Service entrance
Notes on Use
Follow these precautions to ensure safe operation and to obtain the
full benets of the various functions.
DANGER
•Maximum input voltage
To prevent electrical shock, do not apply voltages
to the probe
input that exceeds the maximum input voltage.
•Maximum voltage to ground
To prevent electrical shock, make sure that the
voltage to ground from probe GND does not
exceed the voltage to ground from the input unit
of the measurement instrument.
8966, 8968, 8970, 8972, U8975, U8978: 300 V
•To prevent an electric shock accident, conrm
that the white or red portion (insulation layer)
inside the cable is not exposed. If a color inside
the cable is exposed, do not use the cable.
WARNING
•Grounding the measurement instrument To avoid
electrical shock, always ground the measurement
instrument.
•Connecting to the circuit to be measured
When connecting the probe to a circuit for
measurement, take care to avoid electrical shock.
Furthermore, to avoid electrical shock do not
disconnect the probe from the measurement
instrument while it is still connected to the circuit
being measured.
Grounding the measurement
instrument
When the AC outlet of the measurement instrument is of the
grounded three-pin type: Use the grounded three-core power
cord supplied. The product will be grounded automatically.
Specifications
Divider resistance 99 MΩ±1 % at DC 100 V
99 MΩ+1 %, - 5 % at DC 1000 V
Attenuation ratio 100:1 ±3 % at DC 100 V
100:1 +3 %, -7 % at DC 1000 V
(In conjunction with measuring instrument
with an input impedance of 1M ohm ±1%)
Maximum input
voltage
5000 V peak (max. 1 MHz)
3540 V rms (Max. 700 kHz)
Maximum rated
voltage to earth
1000 V CAT II
8966, 8968, 8970, 8972, U8975, U8978:
300 V CAT II
Frequency
characteristic
DC to 200 MHz (probe only)
Input capacitance Max. 7 pF (probe only)
Compensation
adjustment range
15 pF to 45 pF
Total length Approx. 1.5 m
Operating
temperature and
humidity range
0°C to 40°C
Relative humidity: 80% RH or less
(with no condensation)
Storage
temperature and
humidity range
-10°C to 50°C
Relative humidity: 90% RH or less
(with no condensation)
Location for use Altitude up to 2000 m (6562 feet), indoors
Standard Applying EN 61010
Pollution degree 2, Measurement category II
(Anticipated Transient Overvoltage: 6000 V)
Product warranty
period
1 year
Applicable Modules
8966 Analog Unit, 8968 High Resolution Unit, 8970 Freq Unit,
8972 DC/RMS Unit, U8975 4ch Analog Unit,
U8976 High Speed Analog Unit, U8978 4ch Analog Unit
Contents of the Package
Hook clip
Ground lead
Inspection before use
Measurements may be degraded by dirt on the contacting
parts of the hook clip and pin. Clean the contacting parts by
gently wiping with a soft cloth before use. Remember to clean
them regularly as well.
Using the Probe
Use a terminal for external control or a waveform generator to
output a square wave of 1 kHz.
Adjust the waveform by turning the dial of the probe grip.
* Refer to the instruction manual of the each instrument for
details.
Adjusted waveform
Insufciently-adjusted waveform
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