Preventative Maintenance

Overview

Sound’s Preventative Maintenance (PM) program is designed to ensure that all Sound components are functioning normally. Sound will have a representative or a tech support agent (800-819-5538) available to assist. Each Sound PM includes a foot pedal that should have arrived prior to the install.

Please use the Sound PM Form to ensure that all aspects have been completed. The form will link to sections of this page for easy reference.

The Sound PM will cover

  • Checking the plate is centered to the x-ray field
  • Ensuring the bucky tray/panel receptor is secure
  • Cleaning the panel
  • Cleaning the computer screen and keyboard
  • Calibrating the Panel
  • Checking computer stability
  • cleaning / replacing the foot pedal

Physical Inspection

Cleaning the X-ray Panel and Machine

Remove the tabletop to expose the panel and x-ray machine. Use compressed air (if needed) to remove any large dust particles from the panel. Using a vacuum cleaner, gently clean up any debris that may have accumulated in the machine itself. If necessary, take a photo of any machines in poor quality.

Once the x-ray machine is clean, use a microfiber cloth lightly damp paper towel to clean the top surface of the panel.

If any wires are loose or straying, please tidy them up to ensure that all connections remain stable.

Cleaning/Replacing the Foot Pedal

Check the foot pedal for any dirt/hair, etc that may cause an issue with it. Remove the screw and check the inside and clean out as needed.

Each Sound Platinum level SAP includes a new foot pedal.

If one is onsite and their system is in need of replacing it, please replace it. If a replacement is not needed, the clinic can keep the extra foot pedal until it is needed at a later time.

Checking The Bucky Tray

Check that all parts of the bucky tray are secure and there are no loose screws. Check the assembly that connects to the track and that all wheels and glides are secure and tight. If needed, tighten screws down.

Check the X-ray to Light Field

Check that the panel is aligned to the x-ray field in the acquisition software. In some veterinary x-ray machines, the light field may not be accurate and is not a good indicator of the actual x-ray field. This can be done using the acquisition software itself.

If needed – recenter the plate according to the X-ray Field.

For more information on Bucky Trays, please review the Bucky Tray Page.

Cleaning the Computer

  • Use window solution and microfiber cloth to clean the monitor. Always clean the monitor with the computer turned off
  • Us a can of compressed air to clean out the keyboard
  • With a microfiber cloth, clean the computer and mouse off

Checking Computer Disk Space

  • Click the Windows Key + D
  • Right Click on the Windows logo and select File Explorer
  • Note the disk usage for the C Drive

Gain Calibrations

Viva Gain Calibration Based on Panel Firmware

Step 1

Call Tech Support (800-819-5538) or a Sound Install representative to ensure that you have the correct panel and gain numbers. There are several variations of panels that are still under warranty. Having the wrong Gain Calibration can change image quality.

Close SmartDR. This can be done by pressing Windows Key + D and right clicking on the SmartDR Icon in the Systems Tray and click Close Window

Step 2

Set the X-ray collimation to wide open and use the appropriate technique to start your calibration (techniques will vary based on x-ray machine)

  • 4343 (1700) – 62kvp / 2.5 mAs
  • 4335 (1700) – 64 kvp / 5 mAs

Step 3

Click the ViVA   icon on the desktop to open ViVA

– In the top right, ViVA will say No Acquisition Link to start

– When the plate loads, it will have a series of numbers and letters

Step 4

With your collimator completely open, click the Acquire button or press F5 to ready your plate for exposure. The ViVA status bar will read “HardwareHandshaking acquisition in progress…” when the plate is ready for exposure.

Step 5

Right Click the image and chose the  Image Information Menu and choose the Receptor tab.

Step 6

Confirm the firmware using the chart as a reference. For any questions, please contact Sound Tech Support (800-819-5538)

Step 7

6. With your technique set appropriately, fire an x-ray.

Step 8

An image will appear on the screen similar to the one below. Ensure that there are no objects, etc in the x-ray field below and that the entire plate is covered. If you have any regularities, remove them and repeat steps 5 & 6

Step 9

Look at the Lev number on the left of the screen. This number will give you a rough idea of the final gain calibration within a few numbers.

You can also find the info by clicking the Image Stats button to estimate your final gain calibration number. Box 11, Average of Pixel Values in ROI should fall between the following numbers for your install:

  • 4343 v2 (1700) w All-In-One Computer: 10,000 – 15,000
  • 4336 (1417): 6000 – 8000

Older versions of the Varian 1700 panel may calibrate differently. Please contact tech support if you have a different panel/computer than listed above.

800-819-5538

If your average value is off, please adjust appropriately and repeat steps 5 & 6.

Step 10

From the Acquisition menu, select Gain Calibration or press F4 to start your Gain Calibration. This will be a 4 shot gain calibration.

Step 11

The gain calibration will do a quick offset.Take an X-ray when the status box displays “X-ray exposure in progress… Frame count:1.”

NOTE: This message indicates that the plate is ready for exposure. You will activate the x-ray machine by pressing the Sound footswitch.

Step 12

11. After the shot, the status box will read “Click the ‘Finish’ button or initiate next exposure(#2). Wait until the Finish button_viva finish  button grays out and fire again. Repeat this until you have reached 4 shots.

Step 13

At the end of 4 shots, press the Finish   button. The status box will read “Gain Calibration is Done.” Note the Gain Median number in the Calibration Statistics.

 

Click the Close   button

Step 14

13. Click the Acquire button or press F5 and take another exposure at the same technique. Your image should show as a “milky, uniform gray.” If you see any regularities check for any objects in the plate, collimator, etc, and redo your gain calibration.