UNI-T UTS3000A Series User Manual
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UNI-T UTS3000A Series User Manual

UNI-T UTS3000A Series User Manual

Signal analyzer
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User's Manual
UTS3000A Series Signal Analyzer
This manual is for:
UTS3000A series
V1.0
th
September 12
, 2024
1 / 91

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Summary of Contents for UNI-T UTS3000A Series

  • Page 1 User's Manual UTS3000A Series Signal Analyzer This manual is for: UTS3000A series V1.0 September 12 , 2024 1 / 91...
  • Page 2 Foreword Dear User, Hello! Thank you for choosing this brand new UNI-T instrument. In order to use this instrument safely and correctly, please read this manual thoroughly, especially the Safety Requirements part. After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to the device, for future reference.

  • Page 3: Copyright Information

    Trademark UNI-T is the registered trademark of Uni-Trend Technology (China) Co., Ltd. Statement UNI-T products are protected by patent rights in China and foreign countries, including issued  and pending patents. UNI-T reserves the rights to any product specification and pricing changes.

  • Page 4: Warranty Service

    This warranty is written by UNI-T for this product, and it is used to substitute any other express or implied warranties. UNI-T and its distributors do not offer any implied warranties for merchant ability or applicability purposes.

  • Page 5: Product Overview

    User's Manual UTS3000A Series 1. Product Overview  UTS3000A  Front Panel  User Interface  Rear Panel This chapter introduces the main functions and features of UTS3000A signal analyzer and provides a brief overview the keys and icons on the front panel and rear panels.

  • Page 6: Front Panel

    User's Manual UTS3000A Series Front Panel Figure 1-1 Front Panel Display Screen: Display area supports touch control Measurement: The main functions to active the signal analyzer, including: FREQ (Frequency): Press this key to enable the center frequency function and enter the ...
  • Page 7 User's Manual UTS3000A Series Advanced Functional Key: Press this key to active the advanced measurement functions, including: Meas/Setup (Measurement Setup): Press this key to set average/hold time, average  type, display line, and limit value. Meas (Advanced Measurement): Press this key to access the transmitter power ...

  • Page 8: User Interface

    User's Manual UTS3000A Series TG SOURCE (Gen Output 50 Ω): This N-Female connector serves as the source output for the built-in tracking generator, with an input resistance of 50 Ω. WARNING Loading input signals on the output port is prohibited to prevent damage or abnormal function.
  • Page 9 User's Manual UTS3000A Series and detector type). Note The first line displays the number of the trace line; the color of the number and the trace should be the same. The second line displays the corresponding trace type, which includes W (Refresh), A (Trace Average), M (Max Hold), and m (Min Hold).
  • Page 10 User's Manual UTS3000A Series corrections. 12. System Log Dialog Box: Click the blank area on the right of the file storage to view the instrument's operation log, alerts, and prompts. 13. Connection: Displays the connection state of mouse, USB and screen lock.
  • Page 11 User's Manual UTS3000A Series equipment damage or abnormal function. 10 MHz Reference Output: The signal analyzer can use an internal reference source or function as an external reference source. If the instrument uses an internal reference source, [REF OUT 10 MHz] connector can ...

  • Page 12: Safety Instruction

    User's Manual UTS3000A Series 2. User Guide  Inspect Packing List  Safety Instruction  Environmental Requirements  Connecting Power Supply  Electrostatic Protection  Preparation Work  Usage Tip  Touch Operation  Remote Control  Help Information  Operation Mode This chapter introduces the safety instructions and basic information about using the signal analyzer.
  • Page 13 Users must follow the following conventional safety precautions in operation, service and maintenance of this device. UNI-T will not be liable for any personal safety and property loss caused by the user’s failure to follow the following safety precautions.
  • Page 14 User's Manual UTS3000A Series before you proceed to operation. It indicates potential problems, which may cause failure of this device if you fail to follow a certain procedure or condition. If the "Note sign Note is present, all conditions must be met before this device will function properly.
  • Page 15 User's Manual UTS3000A Series Certification UKCA indicates a registered trademark of United Kingdom. Conforms to UL STD 61010-1, 61010-2-030, Certified to CSA STD Certification C22.2 No. 61010-1, 61010-2-030. Do not place equipment and accessories in the trash. Items must be Waste properly disposed of in accordance with local regulations.
  • Page 16 If this device may be faulty, please contact the authorized maintenance Abnormity personnel of UNI-T for testing. Any maintenance, adjustment or parts replacement must be done by the relevant personnel of UNI-T. Do not block the ventilation holes at the side and back of this device.

  • Page 17: Environmental Requirements

    User's Manual UTS3000A Series Poor ventilation will cause the device temperature to rise, thus causing Proper damage to this device. Please keep proper ventilation during use, and regularly ventilation check the vents and fans. Keep clean Please take actions to avoid dust or moisture in the air affecting the and dry performance of this device.

  • Page 18: Electrostatic Protection

    User's Manual UTS3000A Series This instrument is a Class I safety product. The supplied power lead has good performance in terms of case grounding. This signal analyzer is equipped with a three-prong power cable that meets international safety standards. It provides good case grounding performance for the specifications of your country or region.
  • Page 19 Activate the Option If you want to activate an option, you need to input the secret key for the option. Please contact the UNI-T office to purchase it. Refer to the following steps to activate the option you have purchased: Copy the attached license file to the root directory of the USB flash drive.

  • Page 20: Touch Operation

    Use [Touch/Lock] key to turn on/off the touch screen function.  Remote Control UTS3000A series signal analyzers support communication with computers via USB and LAN interfaces. Through these interfaces, users can use the corresponding programming language or NI-VISA, and employ SCPI (Standard Commands for Programmable Instruments) commands to remotely program and control the instrument.

  • Page 21: Operation Modes

    User's Manual UTS3000A Series Operation Modes The signal analyzer offers various operating mode, press the Mode key to select it. Spectrum Analysis (refer to Chapter 4 for more details)  IQ analysis   Analog Demodulation  Vector Signal Analysis ...

  • Page 22: Function And Application

    User's Manual UTS3000A Series 3. Function and Application  Basic Measurement  Multiple Signal Measurement  Low-level Signal Measurement  Frequency Shift of Signal Source Measurement  Signal Distortion Measurement  Phase Noise Measurement  View Catalogue and File Management System This chapter introduces the main functions and basic measurements of the signal analyzer.
  • Page 23 User's Manual UTS3000A Series [Enter] key. Touch the panel menu to pop out the dialog box, and touch the virtual numeric keypad to input a value and then confirm. Virtual Key To confirm, either select the virtual [Enter] key or press the [Enter] key.
  • Page 24 User's Manual UTS3000A Series Set Sweep Bandwidth Press [FRQE] > Sweep Bandwidth > 100 MHz to set the sweep bandwidth to 100 MHz. Note Changing the reference level alters the amplitude value of the top grid line.  Adjusting the center frequency shifts the horizontal position of the signal on the screen.
  • Page 25 User's Manual UTS3000A Series Use Difference Value Marker△ to Compare Signals on the Same Screen With this signal analyzer, users can easily compare signal differences in frequency and amplitude. The difference value△ marker function allows users to compare two signals on the same screen.
  • Page 26 User's Manual UTS3000A Series Figure 3-2 Compare Signals on the Same Screen with Difference Value Marker△ Note Turn on the frequency meter to increase the resolution of the marker reading. Use Delta△ to Compare Signals on Different Screens With the difference value marker function, users can easily measure the difference in amplitude and frequency between two signals on different screens.
  • Page 27 User's Manual UTS3000A Series Use the center frequency to increase by 10 MHz: Press [FREQ] > Center Frequency At this point, the first marker moves to the left side of the screen, located at the first signal peak (10 MHz). When the center frequency reaches 100 MHz, the frequency of △Mkr1 is 90 MHz, marking the 100 MHz harmonic component.
  • Page 28 User's Manual UTS3000A Series As shown in Figure 3-4, connect two signal sources to RF IN port via a directional coupler. Sets the frequency of one of signal source to 300 MHz and the frequency of another signal source to 300.1 MHz. Sets the amplitude of the two signal sources to -20 dBm and turn on the signal output.
  • Page 29 User's Manual UTS3000A Series Figure 3-7 Distinguish Two Equal-Amplitude Signal (2) When the resolution is decreased, the sweep time will increase, and the displayed signal will become smoother. For the fastest measurement, use the maximum resolution bandwidth as much as possible. In the factory setting, the resolution bandwidth and span are coupled.
  • Page 30 User's Manual UTS3000A Series Figure 3-8 Failure to Distinguish Small Signal from Big Signal Reduce the resolution bandwidth to reveal the hidden small signal: Press [BW] > 3 kHz Press [Peak] Press [Marker] > Marker Mode > Delta △ Press [Marker] > Marker Frequency > 10 kHz...
  • Page 31 User's Manual UTS3000A Series Reduce Input Loss The signal analyzer's ability to measure low-level signals is limited by the noise it generates internally. The input attenuator will affect the signal level when it passes through the signal analyzer. If a signal is very close to the ground noise, reduce the input attenuation to distinguish the signal from the noise.
  • Page 32 User's Manual UTS3000A Series 3-11 A Signal Close to Ground Noise Figure Note Increase the attenuation value to make ground noise close to the signal level. Reduce the attenuation to 0 dB to observe the signal more clearly. Press [AMPT] > Attenuation > 0 dB...
  • Page 33 User's Manual UTS3000A Series Figure 3-13 Reduce Resolution Bandwidth Please note that a "#" symbol at the bottom left of the screen indicates that the resolution bandwidth (RBW) is not coupled and is set to manual adjustment. Note Users can adjust the resolution bandwidth using the up/down arrow keys with a 1-3-10 sequence.
  • Page 34 User's Manual UTS3000A Series Figure 3-14 Trace Average Track Shifted Signal This chapter describes how to measure and track the shifted signal. Frequency Shift of Signal Source Measurement This signal analyzer can measure the stability of a signal. Use the maximum hold function to display and retain the maximum amplitude level and frequency shift of an input signal trace.
  • Page 35 User's Manual UTS3000A Series Figure 3-15 Use Maximum Hold and Refresh to Observe Shifted Signal Signal Distortion Measurement This chapter describes how to recognize and track the shifted signal. Recognize the Distortion Generated by Signal Analyzer A high-level input signal may cause the signal analyzer to generate a distortion signal, which can mask the true distortion present in the input signal.
  • Page 36 User's Manual UTS3000A Series Figure 3-16 Harmonic Distortion The harmonic distortion component is generated by the signal at the input mixer of the signal analyzer, appearing sequentially with the original 200 MHz signal at 200 MHz intervals. Change the center frequency to the frequency value of the first harmonic.
  • Page 37 User's Manual UTS3000A Series Increase the radio frequency attenuation to 10 dB. Press [AMPT] > Attenuation >10 dB Note The reading of △Mkr1 indicates the amplitude difference of the same harmonic distortion component when the input attenuation is set to 0 dB and 10 dB. If the absolute amplitude of △...
  • Page 38 User's Manual UTS3000A Series distortion of an instrument. The frequencies of the two signal sources used are 299.95 MHz and 300.05 MHz. As shown in Figure 3-18, connect the input port of the signal analyzer via a low pass filter and a directional coupler.

  • Page 39: Phase Noise Measurement

    User's Manual UTS3000A Series Press [BW] > Rotate the Rotary Knob Activate the second marker and use next peak to move it to the peak of distortion signal. Press [Marker] > Marker Mode > Delta△ Press [Peak] > Next Peak Measure another distortion signal.
  • Page 40 User's Manual UTS3000A Series Figure 3-20 Phase Noise Check Catalogue and File Management The signal analyzer saves and acquires data in a similar way to a personal computer: both have internal memory and a USB flash drive. The signal analyzer allows you to view and save files on the internal memory or on a USB flash drive.
  • Page 41 User's Manual UTS3000A Series Multiple Selection (ON/OFF) Press > LocalDisk > UTS3084A to select the catalogue or select the catalogue in a USB flash drive. Turn on "Multiple Selection" menu. Select multiple files or tick the √ box in front of the file name to complete multiple selection.
  • Page 42 User's Manual UTS3000A Series Load File Press > LocalDisk > UTS3084A to select the file. Tap "Load" to load the data of the corresponding file, which includes state, trace, screen, and limit. Rename File Change the name of a file or folder.

  • Page 43: Freq (Frequency)

    User's Manual UTS3000A Series 4. Key Description (Spectrum Analysis Mode) FREFQ (Frequency)  AMPT (Amplitude)  BW (Bandwith)  Auto (Automatic Tuning)  Sweep  Trace  Marker  Peak  Save (File Storage)  System Setup  Default Setup ...
  • Page 44 User's Manual UTS3000A Series displayed at the bottom of the screen. Center Frequency: This function can set a specific frequency value at the center of the screen and displays the center frequency and span values on the left and right side on the bottom of the screen.
  • Page 45 User's Manual UTS3000A Series in span will impact other system parameters. In zero span mode, if the start frequency, center frequency, and stop frequency are the same,  they will be modified simultaneously. Stop Frequency: The stop frequency is displayed on the right end of the screen, while the start frequency is shown on the left end of the screen.
  • Page 46 User's Manual UTS3000A Series Last Sweep Width: Restore the span to the last modified value. Center Frequency Step: Adjust the stepped frequency, which will change the center frequency, start frequency, and stop frequency. Use the numeric keypad, rotary knob, arrow keys, or touch panel menu to modify the stepped frequency.
  • Page 47 User's Manual UTS3000A Series Scale/Division: Sets the logarithmic value corresponding to one grid division in the vertical direction of the screen. The scale function is only available when the scale type is logarithmic. The user can change the scale value using the numeric keypad, rotary knobs, arrow keys, or by touching the panel menu.
  • Page 48 User's Manual UTS3000A Series Insert row Add a new correction point Delete row Remove the currently selected row Delete Remove the currently revised correction data correction data Delete all: Clear all the saved revised data. Calibration Signal: This function is used to verify that the device is detecting the signal properly.
  • Page 49 1. RBW Filter Type: UTS3000A series supports two types of filters: Gaussian and Flat Top Window. Gaussian Window: This is an exponential window with a wide main lobe, resulting in lower ...
  • Page 50 User's Manual UTS3000A Series will increase the sweep frequency. In manual mode, the user can change the sweep time value using the numeric keys, rotary knob, arrow keys, or by touching the panel menu. Span is not zero: When the sweep time is set to auto, the signal analyzer selects an optimal (minimum) sweep time based on the current settings.
  • Page 51 User's Manual UTS3000A Series If the system is currently in single sweep mode and not in a measurement state, press "Single" to perform the sweep when the trigger conditions are met. If the system is currently in single sweep mode and in the measurement state, press the "Single"...
  • Page 52 User's Manual UTS3000A Series trigger conditions are met. No need to set trigger conditions; after sweeping each frame, the next frame will sweep automatically. Video Trigger: When the voltage of the detected video signal exceeds the set video trigger level, a trigger signal is generated.
  • Page 53 User's Manual UTS3000A Series and average. Sample: For each point on the trace, sampling shows the transient energy corresponding to a fixed time point (usually the first sampling point in this time period) in the corresponding time interval. Sampling is applicable to noisy or noise-like signals.
  • Page 54 User's Manual UTS3000A Series A is the maximum trace value, then the difference result is also the maximum trace value. If the difference result is less than or equal to 0, the result is the minimum trace value. Power (A+B): Calculate the power sum of operands A and B and store it in the target trace.
  • Page 55 User's Manual UTS3000A Series Figure 4-1 Reading of Marker Cursor 10 markers can be displayed on the screen simultaneously. However, only one marker or a pair of markers can be controlled at any given time. Select Marker: Choose one of the ten available markers. By default, marker 1 is selected. After selecting a marker, the user can set parameters such as marker type, the trace to mark, and the reading mode.
  • Page 56 User's Manual UTS3000A Series OFF: Turn off the selected cursor. The cursor information displayed on the screen and the related function will also be closed. Mark Trace: Select the trace marked by the current cursor as Trace 1, Trace 2, Trace 3, Trace 4, Trace 5, or Trace 6.
  • Page 57 User's Manual UTS3000A Series function is useful for cursors outside the display area, the cursor extension line indicates the amplitude of the cursor, for observing the comparison. Marker Function: Mark noise, power in-band and density in-band, N dB bandwidth point and frequency meter, and frequency meter threshold.
  • Page 58 User's Manual UTS3000A Series When the "Normal" cursor is selected, the center frequency is set to the frequency of the  cursor. When the "Difference" cursor is selected, the center frequency is set to the frequency of  the difference cursor.
  • Page 59 User's Manual UTS3000A Series type, X-axis reading, and amplitude. The marker table can be used to view the measurement values of multiple measurement points. Figure 4-2 Marker List Peak Press the [Peak] key to access the peak search setting menu and perform a peak search function.
  • Page 60 User's Manual UTS3000A Series Peak List (ON/OFF): Turn on/off the peak list. The default setting is OFF. When the peak table is turned on, a list of peaks that meet the search parameters (displaying frequency and amplitude) is displayed below the split screen window. A maximum of 20 peaks that meet the criteria can be displayed.
  • Page 61 User's Manual UTS3000A Series After the state file is selected, press the Import key to read the current state file. Trace + State: Press the Trace + State panel menu to access the trace and state save menu. Save the instrument state and selected trace to a file.

  • Page 62: System Setting

    User's Manual UTS3000A Series System Setting Press the [System] key to enter the settings menu. This menu allows access to the system information, general settings, and network settings of the signal analyzer. Information: Enter the System Information panel menu to check general and option information.
  • Page 63 User's Manual UTS3000A Series IPv4 Address: The format of the IP address is "nnn.nnn.nnn.nnn." The first "nnn" range is  1 to 223, and the other three "nnn" ranges are 0 to 255. It is recommended to consult a network administrator for an available IP address.
  • Page 64 User's Manual UTS3000A Series Figure 4-4 Web Basic Information Log in to check the instrument settings, operate the instrument control, configure internet settings, set passwords, and control SCPI. The web username and password can be found in Utility/System Information. After logging in, users can view and control the signal analyzer, as shown in Figure 4-5.
  • Page 65 User's Manual UTS3000A Series (2) Access Outer Network Ensure the network cable is plugged into the signal analyzer and that internet access is available. Turn on the frp proxy service on the server. Configure the frp proxy service and IP port of the signal analyzer.
  • Page 66 User's Manual UTS3000A Series Figure 4-6 Web Network Settings 66 / 91 Instruments.uni-trend.com...
  • Page 67 User's Manual UTS3000A Series (4) Password Settings Modify the web password of the signal analyzer as shown in Figure 4-7. The original password can be found by navigating to Physical Instrument -> System -> Setting -> Port Setting. Figure 4-7 Web Password Settings (5) SCPI Execute SCPI commands as shown in Figure 4-8.

  • Page 68: Default Setting

    User's Manual UTS3000A Series default state. Clear data: All the stored data of the signal analyzer will be deleted. Restore all settings: All settings of the signal analyzer will be restored to the default state, and clear the user’s data.
  • Page 69 User's Manual UTS3000A Series Sweep Sweep Mode Auto / Sweep Sweep Sweep Points 1001 Sweep Trigger Type Free trigger Select Trace Trace Trace Trace Type Refresh Trace Detector Trace Normal Trace Update Trace Trace Display Trace Meas (Measurement) Measurement Type...
  • Page 70 User's Manual UTS3000A Series the first trace scan is complete. After saving the reference trace, normalization can be executed. If the frequency changes during normalization, the reference trace should be saved again. Note This parameter does not affect the actual output power of the tracking source; it only adjusts the power reading.
  • Page 71 User's Manual UTS3000A Series true power for noise and is most suitable for measuring the real-time power of complex signals. Voltage Averaging: This averages the voltage values of the signal envelope measured in a signal collection unit. The average detection type will change to voltage detection. Voltage averaging still provides a linear display, making it suitable for observing the rise and fall of AM signals or pulse-modulated signals (e.g., radar, TDMA transmitters).
  • Page 72 User's Manual UTS3000A Series level by using the numeric key, rotary knob, arrow keys or touch the panel menu. Amplitude: Edit the frequency of the current point. The user can change the frequency  using the numeric key, rotary knob, arrow keys, or by touching the panel menu.

  • Page 73: Frequency Sweep

    User's Manual UTS3000A Series 5. One-key Measurement Frequency Sweep  Channel Power  Time Domain Power  Occupied Bandwidth  Third-order Intercept  Adjacent Channel Power  Spectrum Monitor  Carrier-to-noise  Harmonic  This chapter introduces how to use the [Meas] key on the front panel (take the spectrum analysis mode as an example).

  • Page 74: Channel Power

    User's Manual UTS3000A Series Channel Power Figure 5-1 Channel Power Power and power spectral density are measured within the user-specified channel bandwidth, with a pair of vertical lines on the display indicating the boundaries of the channel bandwidth. The center frequency, reference level, and channel bandwidth need to be configured.
  • Page 75 User's Manual UTS3000A Series Average Type: Logarithmic Power Averaging: Averages the logarithmic amplitude values (in dB) of the  signal envelope measured within a signal collection unit. When this type of averaging is selected, the detection type changes to video detection.
  • Page 76 User's Manual UTS3000A Series menu. The measured average result will be displayed after the sweep. When the average count is disabled (OFF), the averaging function is turned off. Average Mode (Exponential/Repeat): Switch between exponential and repetition averaging modes. This averaging mode is used to determine the average mode for the signal analyzer when the specified number of averaging scans has been reached.

  • Page 77: Occupied Bandwidth

    User's Manual UTS3000A Series Occupied Bandwidth Figure 5-3 Occupied Bandwidt The power of the spectrum shown on the screen will first be calculated, and two markers will be placed on the spectrum. The percentage of power between the two frequencies indicated by the markers is specified by the user, with a default testing percentage of 99%.
  • Page 78 User's Manual UTS3000A Series disabled (OFF), the averaging function is turned off. Average Mode (Exponential/Repeat): Switch between exponential and repetition averaging modes. This averaging mode is used to determine the average mode for the signal analyzer when the specified number of averaging scans has been reached.

  • Page 79: Third-Order Intermodulation

    User's Manual UTS3000A Series Note The asterisk next to the x dB bandwidth value indicates that the result was not obtained under optimal signal analyzer settings. If your primary concern is transmission bandwidth, select Maximum Hold, then press [Trace] > Detector > Peak Detection. The peak data obtained will ensure the accuracy of the transmission bandwidth measurement.

  • Page 80: Adjacent Channel Power

    User's Manual UTS3000A Series Exponential Average Mode: After the specified number of sweeps is reached, the data is  weighted exponentially and added to the previous average value. In this mode, the weight of new data is greater than that of older data, allowing the signal analyzer to track slowly changing signals more effectively.
  • Page 81 User's Manual UTS3000A Series center of the main channel). This method calculates the power of each channel, similar to the channel power algorithm. The ratio of the adjacent channel power to the power of the main channel is known as the adjacent channel power ratio (ACPR).

  • Page 82: Spectrum Monitor

    User's Manual UTS3000A Series bandwidth using the numeric keys, rotary knob, arrow keys, or by touching the panel menu. Frequency Offset: Refers to the center frequency spacing between the main channel and the adjacent channels. Adjusting the channel spacing will simultaneously adjust the distances among the previous channel, the next channel, and the main channel.

  • Page 83: Carrier To Noise Ratio

    User's Manual UTS3000A Series disabled (OFF), the averaging function is turned off. Average Mode (Exponential/Repeat): Switch between exponential and repetition averaging modes. This averaging mode is used to determine the average mode for the signal analyzer when the specified number of averaging scans has been reached.
  • Page 84 User's Manual UTS3000A Series Carrier Power: Search for the maximum positive peak, �1 within the screen range. Calculate the power within the carrier bandwidth centered at �1; this is the carrier power.  bandwidth. Calculate the power within the noise bandwidth centered on �1 +frequency offset;...

  • Page 85: Harmonic Measurement

    User's Manual UTS3000A Series the span, noise bandwidth, and frequency offset. The user can adjust the carrier bandwidth using the numeric key, rotary knob, arrow keys, or by touching the panel menu. Noise BW: Sets the bandwidth of the noise to be measured. The noise bandwidth is linked with the span, carrier bandwidth, and frequency offset.
  • Page 86 User's Manual UTS3000A Series disabled (OFF), the averaging function is turned off. Average Mode (Exponential/Repeat): Switch between exponential and repetition averaging modes. This averaging mode is used to determine the average mode for the signal analyzer when the specified number of averaging scans has been reached.

  • Page 87: Troubleshooting

    User's Manual UTS3000A Series 6. System Prompt and Troubleshooting System Prompt  Troubleshooting  System Prompt When the default value is used, all operating mode parameters will be invalid. Name Minimum Maximum Center Frequency 50 Hz 8.409999950 GHz Sweep Width...
  • Page 88 Troubleshooting This chapter lists potential faults and their corresponding troubleshooting methods for the signal analyzer. Follow these steps to resolve issues. If the methods do not work, please contact UNI-T and provide your machine's information (acquisition method: [System] > Information).
  • Page 89 Calibrate the instrument regularly to compensate for any measurement errors caused by instrument aging. If calibration is required after the warranty calibration period, please contact UNI-T or obtain paid services from authorized measurement institutions. 89 / 91 Instruments.uni-trend.com...

  • Page 90: Maintenance And Cleaning

    User's Manual UTS3000A Series 7. Appendix  Maintenance and Cleaning  Contact Us Maintenance and Cleaning (1) General Maintenance Keep the instrument away from the direct sunlight. Caution Keep sprays, liquids and solvents away from the instrument or probe to avoid damaging the instrument or probe.
  • Page 91 Service support: 8 a.m. to 5.30 p.m. (UTC+8), Monday to Friday or via email at infosh@uni-trend.com.cn For product support outside mainland China, please contact your local UNI-T distributor or sales center. Many UNI-T products offer options to extend the warranty and calibration period. Please contact your local UNI-T dealer or sales center for more information.

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