Cybertek CP8000 Series User manual

Shenzhen Zhiyong Electronics Co., Ltd
www.cybertek.cn
DC/AC Current Probes
CP8000 Series
CP8030B 30A/DC～50 MHz
CP8030H 30A/DC～100 MHz
CP8050A 50A/DC～50 MHz
CP8150A 150A/DC～12 MHz
CP8300A 300A/DC～6 MHz
CP8500A 500A/DC～5 MHz
Shenzhen Zhiyong Electronics Co., Ltd
CYBERTEK

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1
Safety Notices
A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or
the like that, if not correctly performed or adhered to, could result in damage to the product or
loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions
are fully understood and met.
AWARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or
the like that, if not correctly performed or adhered to, could result in personal injury or death. Do
not proceed beyond a WARNING notice until the indicated conditions are fully understood and
met.
Table of Contents
Features and Applications 2
Description of products 3
Making Measurements 6
Safe Probing 7
Accessories Description 10
Specification 11
Packing list 15
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1. Features and Applications
The CP8000 series current probes are wide band width DC/AC active current probes, featuring flat
bandwidth, low noise and low circuit insertion loss. This probe can be used with any oscilloscope
having a high-impedance BNC input.
The key features include:
 Highly accurate current measurements;
 Wide bandwidth;
 Accurate and easy current measurements;
 DC/AC measuring capabilities;
 Over-current protection with dual indicators (buzzer and LED);
 High and low range selection;
 Low current measurements;
 Degaussing and automatic zero setting.
CP8000 Series
Model
Maximum
Continuous
Current
Bandwidth
Range
Current
Transfer Ratio
CP8030B
30A
50MHz
30A/5A
1V/A(5A)
0.1V/A(30A)
CP8030H
30A
100MHz
30A/5A
1V/A(5A)
0.1V/A(30A)
CP8050A
50A
50MHz
50A/7.5A
1V/A(7.5A)
0.1V/A(50A)
CP8150A
150A
12MHz
150A/30A
0.1V/A(30A)
0.01V/A(150A)
CP8300A
300A
6MHz
300A/50A
0.1V/A(50A)
0.01V/A(300A)
CP8500A
500A
5MHz
500A/75A
0.1V/A(75A)
0.01V/A(500A)
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Applications
 Switching and linear power design
 LED lighting design
 New Energy Resources
 Frequency Conversion Household Appliances
 Experiment of Electronic Engineering
 Semiconductor Devices design
 Inverters/ transformer design
 Electronic ballast design
 Industrial Control/Consumer Electronic Design
 Engine driven design
 Power Electronic and Electrical Drive Experiment
 Electric vehicle transportation design
2. Description of products
1）CP8030B CP8030H CP8050A
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2）CP8150A CP8300A CP8500A
 Sensor Head
This clamps the conductor being measured, and carries out the actual current measurement. It is
a precision assembly including a molded component, a ferrite core, and a Hall effect element. It
maybe damaged if subjected to sudden changes in ambient temperature, or mechanical strain or
shock. Care should be exercised when handing the sensor head.
 Opening lever
Operating lever used to open the sensor head. Always use this lever to open the sensor head
.
 BNC Output Connector
The BNC port allows quick connect/disconnect the probe to any brand of oscilloscope by a BNC
Cable (CK-310)
 Power indicator LED
A green LED indicates the power adapter is plugged in.
 Overload Indicator LED
If/when the current under measured exceeds the limit current, the red LED will light up and the
buzzer will sound an alarm.
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 Degaussing and Zero Setting Indicator
This green LED indicates the probe is degaussing and auto Zero Setting, and measurement is
unavailable.
 Range Indicator LED
The green LED indicates the selected range.
 Degaussing and Zero Setting
When the key is pressed, the probe will demagnetizes the core and set the output to zero voltage .If
degaussing and Zero Setting succeeds, the buzzer will make two short beeps. If degaussing and Zero
Setting failed, the buzzer will make a single sound, for one second.
 Range selected Key
Model
Range
Transfer ratio
CP8030B/H
30A
0.1V/A
5A
1V/A
CP8050A
50A
0.1V/A
7.5A
1V/A
CP8150A
150A
0.01V/A
30A
0.1V/A
CP8300A
300A
0.01V/A
50A
0.1V/A
CP8500A
500A
0.01V/A
75A
0.1V/A
 Manual Offset (Up) adjusting
Increase the offset voltage of the output by press this button.
 Manual Offset (Down) adjusting
Decrease the offset voltage of the output by press this button.
 Power Supply socket
Use Power Adapter (12V/1.2A) (CK-612) and Equivalent.
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3. Making Measurements
Before using the probe, check that the system is safe and that the preparations described in Safe
Probing.
 Have a visual inspection of the current probe of high frequency CP8000 Series probes, power
supply, cable and oscilloscope.
 The output of the current probe is terminated internally. Use a high impedance input to the
measuring instrument. Accurate measurements are not possible when the input impedance of
the oscilloscope is set to 50Ω. Be sure to set the input impedance to 1 MΩbefore making
measurements. Set the oscilloscope’s input coupling to DC. With the oscilloscope input at
ground, adjust the trace to the zero position. Connect the probe’s output connector to the
oscilloscope’s input connector.
 Connect the power supply to probe and the power indicator will light. Select suitable Range
you want via the Range Key.
 Ensure that the probe sensor is NOT clamped around any conductors. Slide the probe’s
Opening Lever into the LOCKED position as shown in Figure. Confirm that the sensor head
is properly closed.
 Degaussing and Zero Setting
When the key is pressed, the probe will demagnetizes the core and set the output to zero
voltage if it has been magnetized by switching the power on and off, or by an excessive input.
Always carry out demagnetizing and Zero Setting before measurement and without current in
the clamp. The demagnetizing and Zero Setting process takes about 5 seconds. During
demagnetizing and Zero Setting, a demagnetizing waveform is output.
If degaussing and Zero Setting succeeds, the buzzer will make two short beeps. If degaussing
and Zero Setting failed, the buzzer will make a single sound, for one second.
Do not demagnetize while the conductor being measured is clamped.
This could damage the components of the circuit being measured. Also, check that the
conductor being measured is not clamped when supplying power to the current probe for the
same reason. Demagnetized waveforms are generated when switching on the supply.
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 Measurement
Press the opening lever to open the sensor head.
Align the sensor so that the probe’s current direction indication corresponds to the
direction of current flow through the conductor to be measured. Also, align the clamp so
that the conductor is in the center of the sensor aperture.
Press the opening lever on the sensor head until the UNLOCK indication disappears.
Check that the opening lever is firmly locked and the sensor head securely closed.
4. Safe Probing
This device is designed to comply with Safety Standards, and has been thoroughly tested for
safety prior to shipment. However, mishandling during use could result in injury or death, as well
as damage to the device. Be certain that you understand the instructions and precautions in the
manual before use. We disclaim any responsibility for accidents or injuries not resulting directly
from device defects.
To avoid short circuits and potentially life-threatening hazards, follow these warnings and
precautions:
 Never attach the clamp to a circuit that operates at more than the maximum rated
voltage to earth.
 For safety's sake, avoid clamping around bare conductors, while clamping or measuring.
 While clamping and measuring, do not touch the clamp in front of the barrier or the
conductor being measured.
 Be careful to avoid damaging the insulation surface while taking measurements.
 Make sure that the waveform measuring equipment connected to this device's output
terminal (BNC) is equipped with a protective earthling with double-insulation
construction.
 Do not allow the device to get wet, and do not take measurements with wet hands. This
may cause an electric shock.
 If the waveform measuring instrument being connected to the output terminal (BNC) on this
device is equipped with any other measurement terminals, take the following precautions to
ensure that the other instrument does not form a bridge between the probe and any
hazardous live part of a part.
Isolate the terminal to which the probe is connected from other terminals on the measuring
instrument using basic insulation conforming to the measurement category, working voltage,
and pollution degree requirements of the circuit being tested.
If basic insulation requirements cannot be met between the terminal to which this device is
connected and other terminals of the measuring instrument, make sure that the voltage input to
the measurement terminal does not exceed the Separated Extra-Low Voltage Earthed.
Read and observe all warnings and precautions relating to electrical safety for the
measuring instrument being connected to the probe.
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 To avoid damage to the device, protect it from vibration or shock during transport and
handling, and be especially careful to avoid dropping.
 Do not store or use the device where it could be exposed to direct sunlight, high temperature,
humidity, or condensation. Under such conditions, the device may be damaged and
insulation may deteriorate so that it no longer meets specifications.
 Before using the device the first time, verify that it operates normally to ensure that the no
damage occurred during storage or shipping. If you find any damage, contact your dealer
or CYBERTEK representative.
 This device is not designed to be entirely water- or dust- proof. To avoid damage, do not use
it in a wet or dusty environment.
 The sensor head is a precision assembly including a molded component, a ferrite core, and a
Hall Effect element. It may be damaged if subjected to sudden changes in ambient
temperature, or mechanical strain or shock, and therefore great care should be exercised in
handling it.
 The matching surfaces of the sensor head are precision ground, and should be treated with
care. If these surfaces are scratched, performance may be impaired.
 Foreign substances such as dust on the contact surfaces of the sensor head can cause
acoustic resonance and degrade measurement, so it should be cleaned by gently wiping
with a soft cloth.
 To avoid damaging the sensor cable and power supply cable, do not bend or pull the cables.
 When the power is on, keep closed, except when clamping them onto the conductor to be
measured. The facing surface of the core section can be scratched while it is open.
 Do not place any un-clamped conductor with an electric current of a frequency of 10 kHz or
more near the sensor head. Current flowing in the conductor nearby may heat up the
sensor head and cause its temperature to rise, leading to damage to the sensor. For
example, when one side of a go-and-return conductor is clamped and the other side is also
placed near the sensor head , even if the electric current is lower than the consecutive
maximum current, electric currents in both sides will heat up the wires and raise the
temperature, thereby causing damage to the sensor.
 The maximum continuous input range is based on heat that is internally generated during
measurement. Never input current in excess of this level. Exceeding the rated level may
result in damage to the probe.
 The maximum continuous input range varies according to the frequency of the current being
measured.
 If excess current is input, generated heat activates a built-in safety function that blocks
normal output. If this happens, remove the input immediately (remove the sensor from the
conductor being measured or reduce the input current to zero). Wait until the sensor has
had sufficient time to cool before resuming operation.
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 Even if the input current does not exceed the rated continuous maximum, continuous input
for an extended period of time may result in activation of the safety circuit to prevent
damage resulting from heating of the sensor.
 At high ambient temperatures, the built-in safety circuit may activate at current input levels
below the rated continuous maximum.
 Continuous input of current exceeding the rated maximum or repeated activation of the
safety function may result in damage to the unit.
 The probe is rated for maximum input under two conditions in addition to the input
maximums shown in the Specifications. These are (1) 30A peak for non-continuous input
and (2) 50A peak for pulse widths 10 µs. (1) indicates an upper waveform response limit
of 30A peak. Use the sensor at RMS current input levels that are within the rated
continuous maximums. (2) Indicates the upper response limit for a single input pulse.
 When opening the sensor head of the probe, be sure to operate with the opening lever. If an
upper core is forced to open when the sensor head is locked, the open close mechanism
can be damaged.
 The output of this unit is terminated internally. Use an oscilloscope with an input
impedance of at least 1 MΩ.
 Immediately after powering on the probe, the probe may be subject to an appreciable
offset drift due to the effect of self heating. To counteract this, allow the probe to warm up
for about 30 minutes before carrying out measurement.
 When performing continuous measurements, it is necessary to be aware that the offset
voltage drifts, depending on factors such as the ambient temperature.
 Under certain circumstances, oscillation may occur if the probe is connected to the power
supply while the power supply is on. This does not indicate a malfunction. Oscillation can
be stopped and operation restored to normal by opening and closing the sensor head.
 Depending on the measured current frequency, some sound maybe produced by resonance,
but has no effect on measurements.
 The reading may be affected by the position within the clamp aperture of the conductor
being measured. The conductor should be in the center of the clamp aperture.
 When carrying out a measurement, press the opening lever until the UNLOCK indication
disappears and check that the sensor head is properly closed. If the sensor head is not
properly closed, an accurate measurement is not possible.
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 Accurate measurement may be impossible in locations subject to strong external magnetic
fields, such as transformers and high-current conductors, or in locations subject to strong
external electric fields, such as radio transmission equipment.
 At high frequencies, common mode noise may affect measurements taken on the high
voltage side of circuits. If this occurs, reduce the frequency range of the waveform
measuring instrument or clamp onto the low-voltage side of the circuit.
5. Accessories Description
BNC Cable: 100cm, MALE X MALE (CK-310)
PowerAdapter (12V/1.2A) (CK-612)
Model
CP8030B/H
CP8050A
CP8150A
CP8300A
CP8500A
Line of coaxial
cable(CK-310)
BNC coaxial line：100cm
Adapter
dimensions
(CK-612)
DC12V/1.2A
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6. Specification
Electrical characteristics
Model
CP8030B/
CP8030H
CP8050A
CP8150A
CP8300A
CP8500A
Bandwidth
(-3dB)
CP8030B
DC-50MHz
(Figure 1.a)
DC-50MHz
(Figure 4)
DC-12MHz
(Figure7)
DC-6MHz
(Figure10)
DC-5MHz
(Figure13)
CP8030H
DC-100MHz
(Figure 1.b)
Rise time
CP8030B
≤7ns
≤7ns
≤29ns
≤58ns
≤70ns
CP8030H
≤3.5ns
Continuous
maximum input
range
CP8030B
30ArmsFigur
e2.a
50Arms
(Figure 5)
150Arms
(Figure8)
300Arms
(Figure11)
500Arms
(Figure14)
CP8030H
30ArmsFigur
e2.b
Max peak
current
value
50Apk
75Apk
300Apk
500Apk
750Apk
Range
5A
1X
7.5A
1X
30A
10X
50A
10X
75A
10X
30A
10X
50A
10X
150A
100X
300A
100X
500A
100X
Overload
5A
≥5A
7.5A
≥7.5A
30A
≥30A
50A
≥50A
75A
≥75A
30A
≥50A
50A
≥75A
150A
≥300A
300A
≥500A
500A
≥750A
Current
transfer
ratio
5A
1V/A
7.5A
1V/A
30A
0.1V/A
50A
0.1V/A
75A
0.1V/A
30A
0.1V/A
50A
0.1V/A
150A
0.01V/A
300A
0.01V/A
500A
0.01V/A
measurable
current
5A
1mA
7.5A
1mA
30A
5mA
50A
5mA
75A
5mA
30A
10mA
50A
10mA
150A
50mA
300A
50mA
500A
50mA
Amplitude
accuracy
(DC,45-66Hz )
5A
±1%±1mA
7.5A
±1%±1mA
30A
±1%±10mA
50A
±1%±10mA
75A
±1%±10mA
30A
±1%±10mA
50A
±1%±10mA
150A
±1%±100mA
300A
±1%±100mA
500A
±1%±100mA
Input
impedance
CP8030B
ReferenceFigur
e3.a
Reference(Figure6)
Reference(Figure9)
Reference(Figure12)
Reference(Figure15)
CP8030H
ReferenceFigur
e3.b
Delay
time
Probe
14ns
14ns
36ns
41ns
42ns
BNC
(1m)
5ns
Terminal load
≥100kΩ
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Power supply
DC 12V/1A（Standard Adaptor）
Voltage of
insulated wire
300V CATI
600V CATII 300V CATIII
Safety
compliance
EN61010-1:2010
EMC standard
EN61326-1:2013 EN61000-3-2:2014 EN61000-3-3:2013
Fig 1 .a CP8030BAmp- Frequency curve Fig 1 .b CP8030HAmp- Frequency curve
Fig 2.a CP8030B Fig 2.b CP8030H
Continuous maximum input measurement Continuous maximum input measurement
(Frequency derating) (Frequency derating)
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Fig. 3.a CP8030B Fig. 3.b CP8030H
Input impedance VS Frequency Input impedance VS Frequency
Fig 4 CP8050AAmplitude-Frequency Curve Fig 5 CP8050AContinuous maximum input rating
(Frequency derating)
Fig 6 CP8050AInput Impedance-frequency curve Figure 7 CP8150AAmplitude-Frequency Curve
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Fig 8 CP8150AContinuous maximum input measurement Fig 9 CP8150AInput Impedance-Frequency curve
Fig 10 CP8300AAmplitude-frequency Curve Fig 11 CP8300AContinuous maximum input measurement
Fig 12 CP8300A Input Impedance-Frequency Curve Fig 13 CP8500AAmplitude-frequency Curve
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Fig 14 CP8500AMaximum continuous input measurement Fig 15 CP8500A Input Impedance-Frequency Curve
Mechanical characteristics
Model
CP8030B/H
CP8050A
CP8150A
CP8300A
CP8500A
Measurement conductor
diameter max.
5mm
20mm
Cable length
1m
1.5m
Cable length(CK-310)
100cm
Adapter dimensions(CK-612)
72*62*31mm Wire length: 1.5m
Clamp dimensions（L*W*H）
75*40*18mm
175*68*29mm
Termination unit（L*W*H）
119*49*28mm
Probe weight
255g
555g
525g
525g
Environmental characteristic
Operating temperature
and humidity
0-40℃,80% or less
Storage temperature
and humidity
-10-50℃,80% or less
Operating altitude
2000m
Storage altitude
12000m
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7. Operating Method
 The output interface of this machine is set inside. When using the oscilloscope, please select high input
resistance (1MΩ). If the input resistance is 50Ω, the data will be incorrect
 Please make sure the current measured doesn’t surpass the maximum current. The magnetic core will
saturate. The saturated magnetic core will neutralize the generate waveform during saturation. The
overcharged inrush might cause mistaken degaussing and need to be zero set again.
 When power is connected, offset might occur because of the heat generated by the machine. But it will be
stabilized after about 30 min.
 Strong Magnetic field like transformer, large circuit, high electricity like wireless will cause deviation
 The voltage might deviate because of the surrounding temperature, so please be careful when testing
sequentially
 The frequency of the current under test may cause resonance, but this won’t influence the testing.
 The position of conductor under test in the sensor will influence the result, so please move the conductor
under test into the center of the sensor.
 Push the switch control pole all the way through until the unlock mark disappear. Please make sure the
control pole is locked and the entire structure is closed. If the entire structure isn’t closed, the testing will go
wrong.
 If you insert the high potential side of the circuit in high frequency domain, the result might be influenced
by the noise. If it’s necessary, please limit the waveform observer’s frequency domain or insert the low
potential side of the circuit.
 When disconnecting the output terminal, please pull out the connector after unlocking. The output terminal
will be damaged if you force to drag the cable out before unlocking
 When putting in the output terminal other than BNC terminal, please be careful for the polarity of the
terminal
 The continuous maximum input range is the fixed value caused by the machine’s operating heat. Please do
not put in current higher than this value, or the device will be damaged
 The continuous maximum input range will change according to the frequency of the current under test. The
probe will be damaged when operate under overcharged current
 When the input current continuously surpasses the maximum input range, the self-protection will be
activated by the heating of the sensor and cause wrong output. Please stop the current input and wait for full
cool down before next operation.
 The protection circuit will be mistakenly activated by the high temperature even when the continuous
current under test is below the max input.
 When the connect input surpass the max input range current and activate the protection function too often,
Note
Attention
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the device may be damaged.
 You must open the entire part through switch controller.
 At the Lock State, please do not press the entire part as shown below.
7.1Preparation before testing
 Prepare the High Frequency Current Probe CP8000 series, adapter and oscilloscope
 Power up the CP8000 probe and the green LED power indicator will be lighted.
 Set the oscilloscope: Ground the measuring mode, zero set the oscilloscope and turn the oscilloscope
mode to DC mode.
 Choose the proper range according to the current under test. The default setting of the probe is large
current range
7.2Degaussing and Zero setting
 Connect the CP8000 with oscilloscope (Make sure the input impedance of the oscilloscope is 1MΩ)
 Lock the probe until the UNLOCK symbol disappear.
 Press the button to degauss and zero set. There will be beeping as success indication after 6s
7.3Measuring method
 Confirm the previous steps
 Pull the switch control pole of the sensor, open the head of the sensor and make the current direction
mark in front of the sensor accordance with the current under test, and put the conductor under test in
the middle of the sensor.
 Push the switch control pole of the sensor until the UNLOCK mark disappear. Lock the probe, make
sure the entire part is closed, and then observe the waveform under test. Utilize the current transfer ratio
to transform the voltage sensibility into current sensibility. For instance, the ratio of CP8030B is 0.1V/A
(30A range), and then, when the voltage sensibility of the waveform monitor is 10mV/div, the current
sensibility is 100mA/div.
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8. The method to deal with abnormal situation
Situation
Possible reason
Dealing method
Can’t measure DC, or the value
obtained is comparatively low
in the frequency range
Power is off
Turn on power
Oscilloscope set to AC coupling
Set to DC coupling
Sensor is not locked
Please lock the sensor
Auto degaussing or zero setting
unsuccessful
The probe is on the operating circuit
under test when degaussing or zero
setting is applied
Turn off the circuit under test and
zero set again.
The amplitude is
comparatively low in the
frequency range
The input resistance of the test
equipment like oscilloscope is 50Ω
Set the resistance over 1MΩ
9. Q&A
9.1 Do CP8000 series fit the oscilloscope of any brand?
A: CP8000 series has standard BNC interface can be applied to the oscilloscope of any brand. It is
powered by standard adapter, independent of oscilloscope power, so it is very easy to use.
9.2 Can CP8000 series product measure small current?
A: Yes. For now, the CP8000 series current probe has two optional ranges, and one is for small current.
The current resolution of the CP8030B/CP8030H is 1mA. When measuring small current, please
accurately zero set and degaussing the probe, and do not change the position of the probe hand grip. To
observe the waveform please set the bandwidth restriction of the oscilloscope to 20MHz to eliminate the
interference of noise. When measuring extremely small current (a few mA for example), one could
make a few more loop of cable around the probe and divide the result with number of loop to obtain the
actual current value.
9.3 Any more tips?
A:
 When measuring high frequency current, please do not let the current surpass the value shown by
the curve of max peak current vs frequency. The max continuous current over the curve will burn
the probe.
 To measure accurately, please degauss and zero set the probe, and make sure the probe is locked
during the process.
 Set the input impedance of the oscilloscope to 1MΩ(default)
 Make sure the probe is locked during testing.
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 The probe should be away from the interference source like transformer. The method to judge if the
probe is interfered is to put the probe close to circuit under test. IF there’s any output, there could be
interference in the testing environment because the probe is not on the circuit yet.
 The current under test should not surpass the limit value of the probe.
 Please always maintain your probe and do not use it in the humid environment
 If there’s anything wrong with the probe, please set it back for repairing. If you dismantled the
device on your own, we won’t guarantee for repairing.
7. Packing list
Packing list
ITEM
Quantity
Probe
1
DC-12V/1.2A adapter
1
BNC connecting line
1
Tool bag
1
Instruction manual
1
Guarantee card
1
Test report
1
CYBERTEK
SHENZHEN ZHIYONG ELECTRONICS CO.,LTD.
Addr：RoomA1702, Building 4, TianAn Cyber Park, HuangGe North Road, LongGang
District, ShenZhen City, China
Tel: [phone]
[phone]
Q Q: 400 852 0005
Fax: [phone]
Email: cy[email protected] ©Zhiyong Electronics, 2018
Url: http://www.cybertek.cn Published in China, January 1, 2018
CYBERTEK