Hantek HT8000 Series User manual

HT8000 Series
High Voltage Isolating Probes
Instruction Manual
Qingdao Hantek Electonics Co., Ltd

1
HT8000 Series
High Voltage Isolating Probes
Instruction Manual
Please read the instruction manual carefully to avoid injury
and prevent damage to this product.
Ver. 2.01 2022-11-16

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Preface
At first, thank you very much for using our product HT8000 Series high
voltage isolating probes. This instruction manual includes safety
summary, brief introduction, main specifications and operating basics etc.
Please read the manual carefully prior to use the product.
Warranty
Hantek warrants that this product will be free from defects in materials
and workmanship for a period of one (1) year from the date of shipment.
If any such product proves defective during this warranty period, Hantek,
at its option, either will repair the defective product without charge for
parts and labor, or will provide a replacement in exchange for the
defective product. Parts, modules and replacement products used by
Hantek for warranty work may be new or reconditioned to like new
performance. All replaced parts, modules and products become the
property of Hantek.
This warranty shall not apply to any defect, failure or damage caused by
improper use or improper or inadequate maintenance and care.
THIS WARRANTY IS GIVEN BY HANTEK WITH RESPECT TO
THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES,
EXPRESS OR IMPLIED. HANTEK AND ITS VENDORS DISCLAIM
ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. HANTEK AND ITS
VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE
OF WHETHER HANTEK OR THE VENDOR HAS ADVANCE
NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

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Table of contents
1. Safety Summary …………………………………………4
2. Brief Introduction…………………………………………5
3. Main Specification ………………………………………6
4. Unpacking and Preparation for Use ………………………8
5. General View of Product …………………………………9
6. General View of Accessories………………………………10
7. Operating Basics …………………………………………11

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1. Safety Summary
Please Review the following safety precautions to avoid injury and
prevent damage to this product or any products connected to it.
Use proper AC adapter. Use only the AC adapter specified for this
product.
Connect and disconnect properly. Connect the probe output to the
measurement instrument before connecting the probe to the circuit under
test. Disconnect the probe input from the circuit under test before
disconnecting the probe from the measurement instrument.
Do not connect or disconnect probes while they are connected to a
voltage source.
Ground the product. This product is indirectly grounded through the
grounding conductor of the mainframe power cord. To avoid electric
shock, the grounding conductor must be connected to earth ground.
Before making connections to the input or output terminals of the
product, ensure that the product is properly grounded.
Do not operate without covers. Do not operate this product with covers
or panels removed.
Power disconnect. The power cord disconnects the product from the
power source. Do not block the power cord; it must remain accessible to
the user at all times.
Do not operate in an explosive atmosphere.
Do not operate in wet/damp conditions.

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2. Brief introduction
HT8000 Series high voltage isolating probe applies differential input
mode. It is used at the location need to measure high voltage or isolate
from ground usually.
HT8000 Series high voltage isolating probe supplies two attenuation
ranges 1/50 and 1/500 to be selected. The Maximum measurable
differential voltage are 130V (DC + peak AC) and 1300V (DC + peak
AC) accordingly.
HT8000 Series high voltage isolating probe has over range alarm
function. It indicates with a red LED.
HT8000 Series high voltage isolating probe is small and robust. It has
very high stability, reliability and accuracy.
It may be used at the following location usually:
Measure without connect to ground
Measure a high voltage or strong electricity
Switch-mode power supplies design
Power convert design
AC inverter and UPS
Transducer design
Electronic ballast design
Electromotor drive design
CRT display design
Electric and electronic experiment

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3. Main Specifications
Electrical Specification
Model
HT8050
HT8100
Bandwidth (-3dB) 50MHz 100MHz
Rise time
7ns
3.5ns
Accuracy ± 2%
Attenuation
1/50, 1/500
Input resistance Between each input to ground: 4MΩ
Between inputs: 8MΩ
Input capacitance Between each input to ground: 7pF
Between inputs: 3.5pF
Maximum
measurable
differential voltage
1/50: 130V (DC + peak AC)
1/500: 1300V (DC + peak AC)
Maximum input
voltage-to-earth
1000Vrms, C AT Ⅱ
600Vrms, C AT
Ⅲ
Noise 1/50: ≤1.5mVrms
1/500: ≤1mVrms
Linearity
±1%
Delay time 20ns±1ns
CMRR
DC: ≥80dB
100Hz: ≥ 60dB
1MHz: ≥ 50dB

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Differential
overvoltage
detection level
1/50: 140V ± 4V (DC + peak AC)
1/500: 1400V ± 40V (DC + peak AC)
AC adapter output
DC9V
，
1000mA
AC adapter input
AC100~240V
，
50~60Hz
Typical mechanical specification
Input cable length
HT8050
：
60cm
；
HT8100
：
30cm
Output cable length
90cm
Alligator clips 85×40×13（mm）
Pincer clips
160×45×13
（
mm
）
Probe body 120×55×24（mm）
Weight (probe only)
160g
Environment Specification
Operating
temperature
0~40℃
Storing temperature -10~45℃
Operating humidity
85%RH
Storing humidity
90%RH
Operating altitude
3000m
Storing altitude
12000m

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4. Unpacking and Preparation for Use
4-1 Unpacking
This product has been checked and tested for the quality before it comes
out of the factory. Please check if there is damage during the
transportation when unpacking. If there is, please inform the
transportation company and the local agent immediately.
Packing list:
High voltage isolating probe 1pcs
Instruction manual 1pcs
AC adapter 1pcs
Red alligator clip 1pcs
Black alligator clip 1pcs
Red pincer clip 1pcs
Black pincer clip 1pcs
4-2 Preparation for use
Please check the line voltage prior to connect the AC adapter to the
electric outlet. The line voltage should be coincident the following list. If
the incorrect line voltage is used, it will damage the product and the AC
adapter.
AC adapter input voltage
Frequency
AC100V~240V
50~60Hz
Warning：Use only the AC adapter specified for this product to
avoid injury and prevent damage to this product.

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5. General View of Product

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6. General View of Accessories
HT8000 Series high voltage isolating probe includes following
accessories: An AC adapter, a couple of alligator clips and a couple of
pincer clips.
1. AC adapter
2. Alligator clips
3. Pincer clips

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7. Operating Basics
HT8000 Series high voltage isolating probe is very convenient
to operate. But we suggest every new user should read the
manual perfectly prior to begin operating.
7-1 Operation steps
a. Check and affirm the AC adapter input voltage is correct prior to use.
b. Guesstimate the voltage to measure and set the correct attenuation
switch. If the input voltage is over range, perhaps it will damage the
probe.
c. Connect the BNC output terminal to oscilloscope or other measuring
instrument. Connect the input cables to the adapt clips well.
d. Connect the AC adapter output to probe power input connector. The
green POWER indicator lights.
e. Select adapt attenuation range according to measured voltage. When
the measured voltage is over range, the red OVER RANGE
indicator lights, the attenuation should increase or disconnect the
power and the input measured voltage.
f. Set the measuring oscilloscope or other instrument sensitivity
according to displayed altitude of signal.
g. Connect the adapt clips to input cables.
h. Connect the clips to measured targets to start measuring. The probe
body should be far from high voltage pulse circuits to reduce the
noise or errors.
i. When the test is finished, disconnect the power at first, then
disconnect input from measured target, disconnect the output BNC
terminal from the oscilloscope or other measuring instrument at last.

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7-2 Attention to use：
a. Twisting the input leads as following helps to cancel noise that is
induced into the input leads and to improve the high frequency
response of the inputs.
b. Do not extend input cables if not necessary, this will lead to more
noise. If it is necessary to extend input cables, the extend cables length
should be same. And the measured signal frequency should be lower
than 10MHz. Otherwise the errors will be larger.
c. The probe and measuring instrument should warm up for 20 minutes if
want to get high accuracy measuring result.
7-3 Troubleshooting
The Power LED does
not remain lit
Check that the AC adapter is plugged in and
functional.
The measured
waveform can’
t be
displayed
right and
stability
Check that the probe accessories that you are
using are fully mated.
Check the probe connection on your circuit.
Perform a functional check on the probe.
Change a different channel on the oscilloscope
or change a different oscilloscope.