UNI-T UT-P31 Differential Probe Active Probe Instruction Manual

: June 5, 2024
: UNI-T

Table of Contents

UNI-T UT-P31 Differential Probe Active Probe
Features
Specifications
Operatingenvironmental conditions
Operating procedure
Maintenance
Cleaning
Warranty
Repair
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UNI-T UT-P31 Differential Probe Active Probe

Features

The UT-P31 differential probe provides a safety means for measuring differential voltage to all models of oscilloscopes. It can convert the high differential voltage(≤1500Vp-p) into a low voltage(≤7V)and display on the oscilloscope. Its bandwidth is up to 100MHz, which is ideal for big power testing, development and maintenance. The UT-P31 is designed to operate with the 1MΩ impedance oscilloscopes. When combine with the 50Ω load, the attenuation will be 2 times. UT-P31 is recommended to use with our own manufactured PL-10 to expand the measuring with the electricity meter to observe more accurate measurement. The accuracy of oscilloscope is 1%and the electricity meter is about 10 times)

Specifications

Bandwidth:DC-100MHz
Attenuation: X100,X1000
Accuracy:+/-1%
Input voltage range(DC+AC PEAK TO PEAK)
- ≤150Vfor x100, (about 50V RMS )
- ≤1500Vfor x1000, (about 500V RMS )
Permitted max input voltage:
- Max differential voltage: 1500V(DC+AC PEAK TO PEAK)
- Max voltage between each input terminal and ground: 5KV RMS
Input Impedance:
- Differential: 8MΩ /1pF
- Between terminal and ground:4MΩ /2pF
Output voltage: ≤7V
Output impedance: 50Ω
Rise time:
- 3.5ns for x100
- 3.5ns for x10
Rejection rate on common mode:
- 60Hz:＞80dB;100Hz:＞60dB;1MHz:＞50dB
Power Supply:Only External 6V DC power supply.
Consumption: 150mA max (0.9 Watt)

Operatingenvironmental conditions

| Reference| Use| Storage
---|---|---|---
Temperature| +20℃…+30℃| 0℃….+50℃| -30℃….+70℃
Relative Humidity| ≤70%RH| 10%…85%RH| 10%…90%RH

Dimensions and weight：69x26x165mm; 500g
Electrical safety to IEC 1010-1
- Dual insulation
- Installation category Ⅲ
- Degree of Pollution 2
- Related voltage or max line-earth：5KV RMS CE： EN50081-1 and 50082-1

Operating procedure

Connect the probe to the oscilloscope with the insulated BNC/BNC lead.
Adjust the vertical zero adjustments of the oscilloscope if necessary.
Select the attenuation ratio* and the vertical deviation of the oscilloscope in accordance with the conversion table below.
NB: The POWER light must come on.
Attenuation ratio| X1000| X100
---|---|---
Voltage Input Range

(DC+AC Peak to PEAK)

| 1500V| 150V

[N.B]
The real vertical deviation in V/div is equal to the attenuation factor multiplied by the range of vertical deviation selected on the oscilloscope. It will be doubled in the case of use of a 50 Ω load.

Maintenance

For maintenance, only use specified spare parts. The manufacturer can not be held responsible for any accident arising following a repair made other than its after-sales service or approved repairs.

Cleaning

This probe does not require any particular cleaning. If necessary, clean the case with a cloth slightly moistened with soapy water.

Warranty

Unless notified to the country, our instruments are guaranteed against any manufacturing defect or material defect. They do not bear the specification known as the safety specification. Our guarantee, which may not under any circumstances exceed the amount of the invoiced price, goes on further than the repair of our faulty equipment, and carriage paid to our workshops.