RuoShui VC2270H Arbitrary Waveform Signal Generator User Manual

1. Safety Information

1.1. General Safety Requirement

Before any operations, please read the following safety precautions to avoid any possible bodily injury and prevent this product or any other products connected from damage. In order to avoid any contingent danger, this product is only used within the range specified.

Only qualified technicians can implement maintenance.

To avoid Fire or Personal Injury:

• Use Proper Power Cord: Use only the power cord supplied with the product and certified for use in your country.
• Product Grounded: This instrument is grounded through the power cord grounding conductor. To avoid electric shock, the grounding conductor must be grounded. The product must be grounded properly before any connection with its input or output terminal.
• Limit operation to the specified measurement category, voltage, or amperage ratings.
• Check all Terminal Ratings: To avoid fire or shock hazard, check all ratings and markers on the instrument. Refer to the user's manual for more information about ratings before connecting the instrument. Do not exceed any of ratings defined in the following section.
• Do not operate without covers: Do not operate the instrument with covers or panels removed.
• Use Proper Fuse: Use only the specified type and rating fuse for this instrument.
• Avoid exposed circuit: Do not touch exposed junctions and components when the instrument is powered.
• Do not operate if in any doubt: If you suspect damage occurs to the instrument, have it inspected by qualified service personnel before further operations.
• Use your instrument in a well-ventilated area: Inadequate ventilation may cause an increasing of temperature or damages to the instrument. Please keep the instrument well ventilated, and inspect the air outlet and the fan regularly.
• Do not operate in wet conditions: To avoid short circuit inside the instrument or electric shock, never operate the instrument in a humid environment.
• Do not operate in an explosive atmosphere.
• Keep instrument surfaces clean and dry.
• BNC output ports not allowed to input any signal such as voltage, current and other electrical signal, otherwise, it will be burned.

1.2. Safety Terms and Symbols

Terms in this Manual:

• Warning: Indicates conditions or practices that could result in injury or loss of life.
• Caution: Indicates conditions or practices that could result in damage to this product or other property.

Symbols on the Product:

2. Setup and Initial Inspection

2.1. General Inspection

After receiving your new generator, it is recommended that you perform the following checks:

1. Check for transportation damage: If the packaging carton or foam protection cushion is severely damaged, retain it until the device and accessories pass electrical and mechanical property tests.
2. Check accessories: Refer to the 'Accessories' section below. If any accessory is missing or damaged, contact your distributor.
3. Check the complete instrument: If the instrument's appearance is damaged, it does not work normally, or fails performance tests, contact your distributor. Keep the packaging if transportation damage is suspected.

2.2. Packaging Contents

The standard package for the RuoShui Arbitrary Waveform Signal Generator includes:

• 1 x DC power adapter
• 1 x USB power cable
• 1 x Quick Guide
• 1 x BNC/Q9 cable
• 1 x BNC to alligator cable
• 1 x USB communication cable
• User manual (PDF available online: View User Manual PDF)

2.3. Power On

1. Connect the instrument to AC power using the provided DC power adapter.
2. Press the power button on the front panel. The backlight of the power channel switch will light up, and a buzzer will sound.

3. Operating Instructions

3.1. Front Panel Overview

1. TFT Display Screen: Displays the user interface.
2. Menu Selection Keys: 5 keys to activate corresponding menus.
3. Mode Button: Outputs the modulated waveform.
4. Universal Knob: Changes selected values, selects arbitrary waveform types, and triggers sweep manually.
5. Directional Keys: Moves the cursor of the selected parameter.
6. Utility Button: Sets utility functions.
7. Power Button: Turns the waveform generator on/off.
8. Numeric Keypad: Inputs parameters.
9. Signal Output Port (Out1/Out2): Outputs CH1/CH2 signals.
10. CH1/CH2 Button: Switches channel displayed on the screen.
11. On/Off Button (CH1/CH2): Turns on/off the corresponding channel output.
12. Waveform Selection Area: Includes Sine, Square, Ramp, Pulse, Noise, Arb Wave.

3.2. Rear Panel Overview

1. Air Vents: For cooling.
2. USB Device Interface: Connects to PC for remote control.
3. Power Input Socket: DC power input connector.
4. Tripod Mount: For mounting the device on a tripod.

3.3. User Interface

The 3.6-inch TFT color screen (480x272 pixels, 65536 colors) displays the waveform status of the output channel and setting menu information, making human-machine interaction more convenient.

3.4. Channel Setting

Before configuring waveform parameters, select the desired channel using the CH1/CH2 button. The user interface will display channel information.

Press the Both button to display parameters for both channels simultaneously.

To switch the editable channel, press CH1/CH2.

To select a waveform, use the Waveform selection buttons.

To select a parameter, use the Menu selection keys (corresponding to keys 2-5 on the front panel). Press again to switch between parameters like Frequency/Period.

To edit a parameter, turn the knob to change the value or use the directional keys to move the cursor. The numeric keypad can be used for direct input.

3.5. Waveform Setting

The generator supports Sine, Square, Ramp, Pulse, Noise, and Arbitrary waves. Press the corresponding waveform selection button to enter the setting interface.

Output Sine Wave:

Press the Sine waveform button. The menu includes Frequency/Period, Amplitude/High Level, Offset/Low Level, and Phase. Use the knob or numeric keypad to set values.

Output Square Wave:

Press the Square waveform button. The menu includes Frequency/Period, Amplitude/High Level, Offset/Low Level, and Phase.

Output Ramp Wave:

Press the Ramp waveform button. The menu includes Frequency/Period, Amplitude/High Level, Offset/Low Level, Phase, and Symmetry.

Output Pulse Wave:

Press the Pulse waveform button. The menu includes Frequency/Period, Amplitude/High Level, Offset/Low Level, Phase, Width/Duty, Rise and Fall.

Output Noise Wave:

Press the Noise waveform button. The menu includes Amplitude/High Level, Offset/Low Level.

Output Arbitrary Wave:

Press the Arbitrary waveform button. The menu includes Frequency/Period, Amplitude/High Level, Offset/Low Level, Phase, Built-in Waveform and Store. The generator has 160 types of built-in waveforms, with 8192 points and a highest upper limit frequency of 10MHz.

To select a built-in waveform, press the waveform button, then NextPage to navigate. Use Common, Medical treatment, Standard softkeys to select the type. Use the knob to select the waveform and Ok to confirm.

3.6. Modulated Waves

Supported modulation types include AM (Amplitude Modulation), FM (Frequency Modulation), PM (Phase Modulation), and FSK (Frequency Shift Keying).

Press the Mode function key, then select the desired modulation type to enter its setup menu. Press Mode again to turn off modulation.

3.7. Generate Sweep

In sweep mode, the generator varies its output frequency from a start to a stop frequency within a specified sweep time. Sweep can be generated by Sine, Square, Ramp or Arbitrary waves (except DC).

Press the Mode function key, then Sweep to enter sweep mode. Select the waveform, set start/stop frequencies, and sweep time. The sweep type can be Linear or Logarithmic.

3.8. Generate Burst

Burst mode produces a pulse train of a specific waveform for a certain number of cycles (N-Cycle Burst). Burst can be applied to Sine, Square, Ramp, Pulse and Arbitrary waveforms (except DC).

Press the Mode function key, then Burst to enter burst mode. Select the waveform, set the number of cycles (1 to 60,000) or Infinite, and choose the trigger source (Internal, External, or Manual).

3.9. Utility Function Setting

Press the Utility button to access settings for display, CH1/2, system, beeper, and USB device type.

• Display Settings: Control brightness (0-100%) and screen saver time (1-999 minutes).
• System Settings: Change language and beeper status (On/Off).
• USB Device Type: Set communication protocol to PC (internal) or USB TMC (standard).
• Align Phase: Use the Utility button and then Align Phase to align the initial phase of two channel signals.

4. Communication with PC

The signal generator supports communication with a computer via a USB port. The Waveform Editor software (available on the official website) allows controlling the generator, outputting signals, and writing files to the generator.

1. Set USB device protocol type: Press Utility → System → USB Dev, then switch to PC.
2. Connection: Connect the USB Device interface on the rear panel of the signal generator to the computer's USB port using a USB cable.
3. Install the driver: Run the Waveform Editor software and follow instructions to install the driver from the USBDRV folder.
4. Host computer communication port setting: In Waveform Editor software, go to Communications → Ports-Settings, and select USB as the communication port. A green status indicator confirms successful connection.

5. Maintenance

5.1. General Care and Cleaning

• Do not store the instrument where the LCD display will be exposed to direct sunlight for long periods.
• Caution: To avoid damage, do not expose the instrument or probe to sprays, liquids, or solvents.
• Cleaning: Inspect the instrument and probes regularly. To clean the exterior:
1. Wipe dust from the instrument and probe surface with a soft cloth. Avoid scuffing the LCD protection screen.
2. Disconnect power before cleaning. Clean with a wet soft cloth (not dripping water) and mild detergent. Do not use corrosive cleaning agents.
• Warning: Before powering on again, ensure the instrument is completely dry to prevent electrical short circuits or injury.

5.2. Firmware Update

Use the rear-panel USB port to update firmware with a USB memory device.

Caution: Firmware updates are sensitive. Do not power off or remove the USB device during the process to prevent damage.

1. Press Utility → System → NextPage → Factory Set → Ok to restore factory settings (if needed before update).
2. Obtain the firmware upgrade package (e.g., "AG.upp") from the sales/service department. Copy it to the displayed external disk on your PC.
3. Restart the device. The upgrade status will be displayed.
4. After the upgrade, the instrument will shut down automatically.
5. Press the power button to turn on the instrument. Press Utility to check the firmware version.

6. Troubleshooting

6.1. Screen is black/no display after power on:

1. Check if the power is connected correctly.
2. Check if the fuse below the power connector is the specified type, rating, and in good condition (cover can be opened with a flat-blade screwdriver).
3. Restart the instrument after checking the above.
4. If the problem persists, contact service.

6.2. Measured output signal amplitude does not match displayed value:

Check if the actual load value of the signal is consistent with the load value set in the instrument. Refer to CH1/2 Settings on page 3.4.

If other problems occur, restart the instrument. If it still doesn't work, contact service.

7. Specifications

All technical specifications are guaranteed when the following conditions are met, unless otherwise stated:

• The signal generator must be operated continuously for more than 30 minutes at 20°C to 30°C.
• The signal generator is in calibration and has performed a self-calibration.

7.1. Waveforms

7.2. Frequency Characteristics

7.3. Amplitude Characteristics

7.4. General Specifications

8. User Tips

• The generator is praised for its small size, precision, and reliability.
• The display is comprehensive, showing both numerical and graphical representations of signals.
• Users particularly appreciate the ability to create arbitrary signals, offering almost unlimited creation possibilities.
• For users in Europe, ensure you have a compatible power adapter as the included one might be for UK sockets.
• If the included manual is not in English, refer to the online PDF version for detailed instructions.
• This device is suitable for a wide range of applications including teaching experiments, electronic repair, engineering research, and equipment maintenance.

9. Warranty and Support

9.1. General Warranty

The product is warranted to be free from defects in materials and workmanship for a period of 3 years from the date of purchase by the original purchaser. The warranty period for accessories (probes, battery) is 12 months. This warranty is non-transferable.

If the product is defective during the warranty period, it will be repaired free of charge for parts and labor, or replaced with a new or reconditioned product. Replaced parts, modules, and products become the property of the company.

To obtain service, notify the company of the defect before the warranty period expires. The customer is responsible for packaging and shipping the defective product to the designated service center, along with proof of purchase.

This warranty does not cover defects, failures, or damage caused by improper use, inadequate maintenance, unauthorized repairs, connection to incompatible equipment, use of non-approved supplies, or modifications that increase servicing difficulty.

Contact the nearest Sales and Service Offices for services.

Excepting the after-sales services provided in this summary or the applicable warranty statements, we will not offer any guarantee for maintenance definitely declared or hinted, including but not limited to the implied guarantee for marketability and special-purpose acceptability. We should not take any responsibilities for any indirect, special or consequent damages.