MICSIG 400MHz High Voltage Differential Probe User Guide

400MHz High Voltage Differential Probe

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Specifications:

• Brand: Micsig
• Product: High Voltage Differential Probe DP Series
• Bandwidth: 300MHz / 400MHz / 500MHz
• Max. Differential Voltage: Up to 7000Vpk
• Optical Isolation Technology
• Low Noise
• High CMRR (Common Mode Rejection Ratio)

Product Usage Instructions:

1. Operation Steps:

Note: Avoid using extension leads when
measuring to minimize noise interference. If extension leads must
be used, twist them together to reduce noise. Ensure that the input
frequency does not exceed 5MHz to prevent errors in the output
signal.

2. Safety Precautions:

1. Non-professionals should not open the product casing.

2. Avoid using the product with an open case.

3. Avoid touching any bare metal while testing.

4. Disconnect the power supply and circuit immediately if over the
   range.

5. Do not use the product in flammable or explosive
   environments.

3. Appearance:

The DP differential probe consists of a control module and a
signal box.

• Control Module:
  • Button Panel
  • Cable to Signal Box
  • BNC Signal Output
• Signal Box:
  • Auto Zero Button
  • Range LED Indicator
  • Range Selection Button
  • Signal Input (Positive and Negative)
  • Cable to Control Module

Frequently Asked Questions (FAQ):

Q: What is the maximum input voltage for the DP series

differential probes?

A: The maximum input differential voltage for the DP series
ranges from 70V (20X attenuation) to 7000V (200X attenuation),
depending on the model.

Q: What safety precautions should be followed while using the

DP series differential probes?

A: Follow these safety precautions:

1. Avoid opening the product casing if you are not a
   professional.

2. Do not touch bare metal during testing.

3. Disconnect power immediately if over the range.

4. Avoid using in flammable or explosive environments.

Q: What is the bandwidth range of the DP series differential

probes?

A: The DP series covers bandwidth from 300MHz to 500MHz,
offering high-performance differential measurements.

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5. Operation Steps

1. Power the probe: Power the probe with standard adapter; 2) Connect to oscilloscope: Connect the BNC end of the probe to oscilloscope channel (make sure the oscilloscope is grounded); 3) Select Range: Select appropriate voltage range according to the signal; 4) Connect the DUT: Use clips or hooks to connect the DUT, if an over-voltage alarm occurs, disconnect the power supply and the circuit immediately; 5) Set on the oscilloscope: Set input impedance to 50, adjust the channel attenuation ratio.
   *Note: Try not to use extension leads when measuring, it could bring more noise floor. If must use the extension leads, please twist the leads together to reduce noise, and the input frequency should not exceed 5MHz. If it exceeds 5MHz, the output will have a certain error.
   6. Warranty 1) Micsig warrants the main body of this differential probe for 1 year. During the warranty period, Micsig will be responsible for free maintenance for any failure caused by the quality of the product under normal use. 2) Under the following circumstances, Micsig will refuse to provide maintenance services or charge for a fee: a. No packaging or anti- counterfeiting label. b. Anti-counterfeit label has been altered or blurred beyond recognition. c. Unauthorized disassembly, such as: changing wires, dismantling internal components, etc. d. No sales voucher or the content of sales voucher does not match the product.
   7. Safety Precautions 1) Non-professionals do not open the product casing; 2) Do not use while case is open; 3) Do not touch any bare metal while testing;
2. Disconnect the power supply and circuit immediately when over range; 5) Do not use in flammable and explosive environments;
   Shenzhen Micsig Technology Co., Ltd.
   Tel: +86-755-88600880 Email: sales@micsig.com Web: www.micsig.com Add: A106 , Huafeng Robot Industrial Park, Hangcheng Rd, Bao’an,
   Shenzhen, Guangdong, China, 518126

Tablet Oscilloscope Creator Optical-isolated Probe Leader
Quick Guide
High Voltage Differential Probe — DP series Bandwidth: 300MHz / 400MHz / 500MHz
1. Overview
Micsig high-voltage differential probe — DP series covering bandwidth from 100MHz to 500MHz, differential voltage up to 7000Vpk. Based on the leading optical isolation probe technology, the DP series has very low noise, excellent amplitude-frequency characteristics and high CMRR.
With standard BNC interface, the DP series can work with any oscilloscope; probe body is only 2cm thick, protected by metal housing, achieves strong anti-interference ability. One-press auto Zero, dual-range and overload alarm design. High impedance designed, the single-ended input impedance is greater than 8M, the single-ended input capacitance is less than 3pF, meets various safety test requirements. Ideal for switching power supplies, various high- frequency and high-voltage floating or isolated signal tests.

2. Characteristics

Model
Bandwidth
Rise time
Attenuation
Accuracy Max. input Differential Voltage (DC+AC PK)

DP703

DP704

DP705

300MHz 400MHz 500MHz

1.2ns 0.87ns 0.7ns

20X / 200X

±2%

70V20X 700V200X

Max. Voltage to ground

600V (CAT I ) 450V (CAT II )

Noise
CMRR
Delay time Input impedance Output voltage

Full Bandwidth: 20X: 80mVrms 200X: 100mVrms
DC : >-80dB 100kHz: >-70dB 20MHz: >-40dB 120MHz: >-26dB
8.44ns(20X) 7.9ns(200X)
16M/0.5pF(differential) 8M/1pF(each input to ground)
3.5V

Output impedance

Power supply

Overrange

DP1503 DP1504 DP1505 300MHz 400MHz 500MHz 1.2ns 0.87ns 0.7ns
50X / 500X ±2%

DP3003 DP3004 DP3005 300MHz 400MHz 500MHz 1.2ns 0.87ns 0.7ns
100X / 1000X ±2%

150V50X 1500V500X

300V100X 3000V1000X

1000V (CAT II ) 600V (CAT III )

1000V (CAT III )

Full Bandwidth: 50X: 200mVrms 500X: 250mVrms

Full Bandwidth: 100X: 400mVrms 1000X: 500mVrms

DC : >-80dB 100kHz: >-70dB 20MHz: >-40dB 120MHz: >-26dB

DC : >-80dB 100kHz: >-70dB 20MHz: >-40dB 120MHz: >-26dB

8.44ns(50X) 7.9ns(500X)

8.44ns(100X) 7.9ns(1000X)

16 M/0.5pF(differential)

20M/0.5 pF(differential)

8M/1pF(each input to ground) 10M/1pF(each input to ground)

3V

50

DC 5V

LED flashes, Buzzer beeps

Dimensions

Control module: LWH: 91 33 15 /mm Signal box: LWH100 36 20 /mm

Cable length

Approx. 8 cm (Input); Approx. 120cm (Output)

Temperature

Operating: 0 ~ 40 Non-operating: -30 ~ 70

Humidity

Operating: 5 ~ 85% RH ( 0 ~ 40 ) Non-operating: 5% ~ 85% RH ( 40 ) ; 5% ~ 45% RH (40 ~70 )

Implementation standard
CE standard
EMC standard

Q/MKX001-2023
EN IEC 61010-2-030 EN IEC 61326-1:2021EN IEC 61000-3-2:2019+A1:2021 and EN 61000-3-3:2013+A1:2019+A2:2021 EN IEC 61326-1:2021

3. Appearance DP differential probe mainly consists of control module and signal box.

Control Module
Button Panel
Cable to signal box BNC signal output
Signal Box

Auto Zero Button Range LED Indicator Range Selection Button
Signal inputNegative

Cable to Control Module

Signal inputPositive

4. Precautions

1. The bandwidth of the oscilloscope should be no less than the bandwidth of the probe, channel input impedance should be 50. 2) Calibrate the probe before use: Short-circuit the input ends, power on, press”Zero”button, 5MHz LED light flashes, after hearing a”Di”sound, means calibration succeeded; if hearing”Di Di Di”sound, means calibration failed, needs to be calibrated again; 3) Recommend to use after 10 mins warm-up to get more accurate result. 4) When Range LED indicator flashes and beeps rapidly, indicating Overvoltage warning, please switch to higher range.

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