Automated Support Removal System

CENTI User Manual Automated Support Removal System PostProcess Technologies, Inc. www.postprocess.com REV A

Copyright Copyright 2018 by PostProcess Technologies Inc. POSTPROCESS. All rights reserved. The information disclosed herein is proprietary information owned by POSTPROCESS. This information shall be used solely and exclusively by employees and customers of POSTPROCESS as documentation for the safe operation of processing equipment provided by said company. The information herein shall be used by or disclosed to others only for this purpose. Published: February 2018 Disclaimer: The content of this guide is subject to change without prior notice. Please contact POSTPROCESS for the most current information. Items marked with an asterisk * have been identified as likely to be updated. Picture on front cover is for illustrative purposes only and does not reflect actual dimensions. Conventions WARNING Draws attention to an operating procedure, practice, or condition, etc., that may result in injury or death if not carefully observed or followed. CAUTION Draws attention to an operating procedure, practice, or condition, etc., that may result in damage to equipment if not carefully observed or followed. Draws attention to an operating procedure, practice, or condition, etc., that must be emphasized or provides information to simplify procedures tasks. Any time a screen or button is referenced the following formatting will be used. Screens References to a screen on a machine should be Bold and Italicized. References to gauges on a screen will be italicized. Buttons References to a button that can be pressed or activated by an operator will be BOLD AND CAPITALIZED. PostProcess Technologies, Inc. www.postprocess.com REV A page 1

Table of Contents 1 OPERATION... 5 1.1 Connecting Power to the CENTI... 5 1.2 Powering Up the CENTI... 5 1.3 Automatic Operation Setup/Start... 6 1.3.1 Control Screen Function... 7 1.3.2 Setting the Target Temperature... 8 1.3.3 Setting the Ultrasonic Timer... 9 1.3.4 Setting the Ultrasonic Power... 9 1.3.5 Selecting the Temperature Unit of Measure... 10 1.3.6 Degas Timer and Degas Operation... 10 1.4 Ultrasonic Modes of Operation... 11 1.4.1 Timed Ultrasonic Mode... 12 1.4.2 Constant Ultrasonic Mode... 12 1.4.3 Auto Utrasonic Mode... 13 2 MAINTENANCE OPERATIONS... 13 2.1 CENTI Drain Valve Installation... 13 2.2 Filling the Tank... 14 2.3 Tank Temperature Calibration... 15 2.4 Draining the Tank... 15 2.5 Cleaning the Tank... 15 2.6 Maintaining Proper Detergent Levels... 16 2.7 Tank Capacity... 17 2.8 Covering the Tank... 17 3 TROUBLESHOOTING... 18 3.1 The CENTI will not start... 18 3.2 The tank will not drain when the valve is open... 18 3.3 The CENTI display panel is blank... 18 3.4 The CENTI has shut down and there is an Alarm indicator on the display panel... 18 3.5 An Error Code (Err) is on the display panel... 18 3.6 The CENTI is on but the detergent is not heating up to the set temperature... 19 3.7 Where can I find the CENTI Serial Number... 19 4 POINT OF CONTACT... 19 5 REVISION HISTORY... 20 PostProcess Technologies, Inc. www.postprocess.com REV A page 2

List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Location of Master Power Switch... 5 Power Switch ON... 5 Power and Emergency Stop button... 6 Chamber location... 6 Automatic Operation... 7 Auto Setup Screen... 7 Hardware Status... 8 System Information... 9 Features Enabling... 9 Standby Configuration Screen... 10 Recipe Save As Screen... 10 Recipe Overwrite Warning Screen... 11 Enter Recipe Name screen... 13 Recipe Selection screen... 14 Auto Run screen... 14 Manual Run Screen... 16 Screen Maintenance Screen... 17 Filter Maintenance Screen... Main Tank... Alarms / Warnings Screen... Casters with Ratchet... Overview This User Manual is intended to explain the basic setup and operation of the CENTI Support Removal machine. Read this guide thoroughly before operating the CENTI to ensure safe and efficient operation. If a question is not answered in this guide, contact POSTPROCESS for additional support. The CENTI applies patent-pending technology, including optimized energy through ultrasonic agitation in combination with proprietary detergents and heat to remove excess material deposited during 3D printing processes. The CENTI integrates a number of design features to include a temperature controlled tank, a basket to remove parts from the system, and a convenient table top size to fit in any production environment for ease of use and integration into 3D printing operations. While the CENTI is robust, care should be used during operation. When accessing the detergent tank, carefully lift and remove the lid. Be careful when extracting finished parts to limit the amount of detergent that is lost during the removal process. Ensure no heavy materials are stored above the CENTI that may fall and damage it. As a general rule or unless otherwise directed, to determine the location of various components discussed in this guide, stand in front of the CENTI and look front to back. PostProcess Technologies, Inc. www.postprocess.com REV A page 3

Warnings, Cautions and Notes Ventilation PostProcess Technologies detergents are specifically formulated chemistry for maximized 3D printed support removal efficiency. It is recommended that the equipment be located in a well ventilated room. Specific ventilation requirements can vary widely due to size of the install room, existing ventilation (positive or negative) and differences in individual sensitivities to airborne scents or fragrances. For more information on the safe use of POSTPROCESS detergents refer to the SDS for the specific detergent used. Warnings Failure to adhere to any of the warnings below could void the warranty. Read thoroughly before operating the machine. If the machine appears to be malfunctioning in any way, immediately Turn Off the MASTER POWER SWITCH, disconnect from power, and refer to the Troubleshooting section of this guide on page 18. If the issue is not able to be resolved, call POSTPROCESS for additional support. Do not operate the unit without proper grounding. Do not allow alcohol, gasoline or other flammable solutions near the machine. Doing so could cause a fire or explosion. Do not touch the detergent with bare skin. Use nitrile gloves, laboratory-style eyeglasses and other necessary personal protective equipment when performing any operations including removing parts where skin could come into contact with the detergent. Do not attempt to disassemble or repair the machine. Do not place the power cord in a location where it may come into contact with water or liquids. Caution should be used whenever working with electrically-powered equipment. If there is an emergency situation, it is important to note that hitting the ON/STANDBY button does not turn off power to the CENTI. It turns off the operating cycle only. To shut off power to the CENTI, turn off the MASTER POWER SWITCH. (For switch location, see Figure 1. Location of Master Power Switch) Cautions Connect the unit only to 110v power. Use only POSTPROCESS detergents. Do not add any other liquid solutions to the machine. Do not operate the machine without sufficient detergent in the tank. Detergent Safety As noted in the safety warnings above, it is important that operators do not come into contact with any form of detergent with bare or uncovered skin. When working with or near detergents, always wear nitrile gloves. Wear laboratory-style protective glasses. If bare skin comes in contact with detergent, thoroughly wash the body part with soap and warm, clean water. It is recommended that an eyewash station is near the CENTI and any detergent storage areas. PostProcess Technologies, Inc. www.postprocess.com REV A page 4

1. OPERATION 1.1 Connecting Power to the CENTI The CENTI is delivered with a power cord. Use only the power cord supplied by PostProcess with the CENTI. Connect the CENTI only to single-phase 110v power. WARNING Do not place the power cord in a location where it could come into contact with water or other liquid substances. It is recommended to keep the entire power cord suspended above the floor surface. Before connecting or disconnecting the CENTI to a power outlet or inserting/removing the power cord, ensure the Main Power Switch is in the O or Off position. Insert the power cord into the slot shown in the picture below. The MASTER POWER SWITCH is located near the bottom of the lower rear panel on the left side of the CENTI (as you face the rear of the unit). Once it is connected to 110v power, press the MASTER POWER SWITCH to the I or On position. Figure 1. Location of Master Power Switch To turn OFF the MASTER POWER SWITCH push the switch to the O or OFF position. Figure 2. Power Switch ON 1.2 Powering Up the CENTI The ON/STANDBY button for the CENTI is located to the left of the Control Screen (see Figure 3. ON/STANDY Button). To power up the CENTI, press the ON/STANDBY button. When the Control Screen is lit, the CENTI is on. PostProcess Technologies, Inc. www.postprocess.com REV A page 5

1. OPERATION Figure 3. ON/STANDBY Button CAUTION If the CENTI appears to be malfunctioning, immediately PUSH the ON/STANDBY button and turn off the MASTER POWER SWITCH (See Figure 1.) Then refer to the Troubleshooting section of this QuickStart Guide or contact POSTPROCESS support for further information. 1.3 Automatic Operation - Setup/Start The CENTI is designed to be fully automatic and configured to remove support materials and resins from 3D print technologies. The CENTI is engineered to utilize an automated submersion system that is configurable based on a specific operational need. To learn more, please refer to CENTI Configuration Settings. The front of the CENTI houses the envelope or chamber. The envelope is roughly 19.5 L x 11.5 W x 6 H and holds 5.5 gallons of chemical detergent carefully selected to maximize a specific support removal need. The cover is light-weight for easy lifting and removing, yet caution should be used when setting it down to avoid damage. On the bottom of the left side panel is where an operator can access the drain system. For more information about draining the tank for cleaning and maintaining the chamber tank for the CENTI, please see the Maintenance section of this User Manual. To begin the support removal cycle, press the ON/STANDBY button to power up the Control Screen. Figure 4. Chamber location Whenever an operator is handling detergents, nitrile gloves and eye glasses should be worn. PostProcess Technologies, Inc. www.postprocess.com REV A page 6

1. OPERATION Figure 5. Control Screen The Control screen (Figure 5. above) allows the operator to access all CENTI functionality. If there is not much variance in processing settings, the CENTI can be set up to run in AUTO Mode after turning it on via the ON/STANDBY button. Pressing the AUTO button starts the CENTI automatic operating mode. When this mode is activated, the CENTI will perform the following actions: (Keep in mind that the unit will use the last set of parameters that were entered via the Fn button.) The heater will turn on to bring the detergents in the tank up to the Set Temperature. (See Section 1.3.2 - Setting the Target Temperature for more information) Once the set temperature is reached, the ultrasonics will be activated. (See Section 1.3.4 - Setting the Ultrasonic Power for more information) Once the ultrasonic timer reaches 0 minutes, the Auto Cycle is complete. (See Section 1.3.3 - Setting the Ultrasonic Timer for more information) If the detergent in the tank does not reach the Set Temperature within the first 120 minutes, the Auto Cycle will shut down. If this occurs, the screen will show the icon flashing. If during an Auto Cycle, the DEGAS button is pressed, the cycle will pause and the ultrasonics will restart after the Degas cycle. See Degas Operations for more information about Degassing. 1.3.1 Control Screen Function Figure 6. FUNCTION Button PostProcess Technologies, Inc. www.postprocess.com REV A page 7

1. OPERATION The FUNCTION (Fn) Button (shown Figure 6. FUNCTION Button) allows the operator of the CENTI to access the functionality settings. The CENTI Fn Button is disabled if the machine is running in Auto Mode. Each time the Fn Button is pressed, it advances to the next setting. See the list below for corresponding settings. If no further key is pressed after 15 seconds the CENTI returns to a ready state. If changes are made, but no key is pressed after 15 seconds the changes are saved prior to returning to a ready state. Press Fn (1X) once to Set Temperature Press Fn (2X) twice to Set Ultrasonic Time Press Fn (3X) three times to Set Ultrasonic Power Press Fn (4X) four times to Select Celsius or Fahrenheit Press Fn (5X) five times to Set Degas Time Pressing the Fn Button once from any setting advances the screen to the next function. The LED icon for each function will flash when activated Pressing the Fn Button once from any setting advances the Control screen to the next available function. The operator can determine which function is activated because the LED icon for each individual functionality flashes when it is activated for setting. 1.3.2 Setting the Target Temperature Figure 7. Setting the Temperature Pressing the Fn Button once activates the temperature setting functionality. The Temperature Set icon highlighted above will begin flashing to alert the operator that the temperature is ready to be set. The temperature icon below the Temperature Set icon displays the current temperature of the detergents in the tank chamber. Next, to adjust the tank to your desired temperature, press the UP or DOWN Arrow as highlighted on the right side of the Control screen. The icon to the right of the current temperature is the Heater icon and is displayed whenever the CENTI heater is on and running. PostProcess Technologies, Inc. www.postprocess.com REV A page 8

1. OPERATION 1.3.3 Setting the Ultrasonic Timer Figure 8. Setting the Ultrasonic Timer Pressing the Fn Button twice activates the Timer Settings for ultrasonics to run during the operating cycle. If the operator desires the ultrasonics to run constantly during a cycle, press the UP arrow and a small Infinity icon will display beneath the clock icon as highlighted above. To set the ultrasonics to run for a specified period of minutes from 1 to 99, press the DOWN arrow and scroll to the desired time. While the timer is being set the clock and the numerals will be flashing. Also, the Ultrasonic icon will be displayed indicating that the ultrasonics are the function currently being set. To increase or decrease the time quickly, press and hold the UP or DOWN arrow. Also, the timer values are circular meaning pressing the down arrow from 1 will take the value to 99 and pressing the Up arrow from 99 will change the value to 1. 1.3.4 Setting the Ultrasonic Power Figure 9. Setting the Ultrasonic Power PostProcess Technologies, Inc. www.postprocess.com REV A page 9

1. OPERATION 1.3.5 Selecting the Temperature Unit of Measure The CENTI has two levels of Ultrasonic Power: High or Low. To set the Ultrasonic Power level, press the Fn Button three times or until the Sonic icon is flashing. Press the UP arrow to set ultrasonics for High (Full) power and press the DOWN arrow for Low power. When four bars are displayed it is depicting ultrasonics are set to FULL power. When two bars are displayed it is depicting ultrasonics are set to LOW power. The CENTI is capable of displaying the tank temperature in Fahrenheit ( F) or Celsius ( C). To set the temperature unit, press the Fn button four times or until the Temperature icon is blinking. Press the UP arrow for temperatures to be displayed in Fahrenheit or the DOWN arrow for the readings to be in Celsius. The temperature readings are located at the left side of the Control screen as shown below. In the example shown the temperature units are displayed in Fahrenheit. 1.3.6 Degas Timer and Degas Operations Figure 10. Setting the Temperature Unit of Measure Figure 11. Setting the Degas Timer The CENTI has built-in Degas functionality to remove excess gasses from the detergents which often reduce their effectiveness. To set the timer for a Degas cycle press the Fn Button five times or until the Degas icon (shown above) begins flashing. The Degas icon will display and the time clock and minute counter will begin flashing. Press the UP or DOWN arrow to scroll to your desired time in minutes from 1 to 99. To scroll faster, hold down the selected arrow. PostProcess Technologies, Inc. www.postprocess.com REV A page 10

1. OPERATION Why it is necessary to run a Degas Cycle? Whenever detergents are used for the first time in a post processing operation there is the likelihood that excess gasses will be trapped in the fluids. This is most likely to occur upon the initial filling of the chamber tank or whenever significant amounts of detergent are added to the tank during refilling. Dissolved gasses (most often air) within the detergent will alter the capabilities of the detergents in the support removal process and reduce the effectiveness of the ultrasonics. During normal operations, detergents naturally degas over time, but utilizing a Degas cycle will speed up that process and keep the CENTI at optimum efficiency. Detergents that have not been in use for 24 hours or longer will have reabsorbed some gases. In this situation, ALWAYS run a Degas cycle prior to support removal operations. To run a Degas cycle: See the previous section 1.3.6 Degas Timer and Degas Operations. The default time for a Degas cycle is five minutes. The operator can change that time to any number between 1 and 99 minutes. Once the Degas Time is selected, press the DEGAS button ONCE to begin the cycle. At any time during the Degas cycle, the UP or DOWN buttons can be used to change the Degas cycle time. If the operator wants to STOP the Degas cycle for any reason, press the DEGAS button. 1.4 Ultrasonic Modes of Operation There are three available ultrasonic modes of operation. Figure 12. Setting the Ultrasonic Modes 1. Timed Sonics When operating in Timed Ultrasonic Mode, a timer counts down the remaining time that ultrasonics will run in the cycle. For Information about operating in Timed Ultrasonic Mode see Section 1.4.1 Timed Ultrasonic Mode on next page. 2. Constant Sonics In Constant Ultrasonic Mode, the ultrasonics will continue until the SONIC Button (shown Figure 12. Setting the Ultrasonic Modes) is pressed or power is turned off to the CENTI. For Information about operating in Constant Ultrasonic Mode see Section 1.4.2 Constant Ultrasonic Mode on next page. 3. Auto Sonics In Auto Ultrasonic Mode the ultrasonics begin as soon as the Set temperature is attained and will continue until the cycle timer reaches 0 minutes. For Information about operating in Auto Ultrasonic Mode see Section 1.4.3 Auto Ultrasonic Mode on page 13. PostProcess Technologies, Inc. www.postprocess.com REV A page 11

1. OPERATION 1.4.1 Timed Ultrasonic Mode To run a Support Removal cycle using ultrasonics for a set period of time, use the following steps: 1. Turn on Master Power Switch (See Figure 1. Master Power Switch) 2. Press the ON/STANDBY Button (See Figure 2. Control Screen) 3. If necessary, run a Degas cycle. See Section 1.3.6 Degas Timer and Degas Operations for more information. 4. Use the UP/DOWN buttons to set the time you want the cycle to run. 5. Set the detergent temperature in the tank by pressing the Fn Button once (See Section 1.3.2 Setting the Target Temperature). The Set Temperature icon will flash. Next, press the UP/DOWN Buttons to set the tank to the desired temperature and activate the heater by pressing the HEAT Button. 6. Set the ultrasonic power level. See Section 1.3.4 Setting the Ultrasonic Power. 7. Press the SONIC button. 8. Place the item to be cleaned into the tray and slowly lower it into the tank. When items are processed, slowly remove them from the tank and rinse them with clean, warm water. When handling items that have been through the support removal process or when placing items into the tank for a support removal cycle, wear protective nitrile gloves. 1.4.2 Constant Ultrasonic Mode To run a Support Removal cycle using constant ultrasonics, use the following steps: 1. Turn on Master Power Switch (See Figure 1. Master Power Switch) 2. Press the ON/STANDBY Button (See Figure 2. Control Screen) 3. If necessary, run a Degas cycle. See Section 1.3.6 Degas Timer and Degas Operations for more information. 4. Set the Sonics Mode to Constant. See Section 1.3.3 Setting the Ultrasonic Timer. 5. Set the detergent temperature in the tank by pressing the Fn Button once (See Section 1.3.2 Setting the Target Temperature). The Set Temperature icon will flash. Next, press the UP/DOWN Buttons to set the tank to the desired temperature and activate the heater by pressing the HEAT Button. 6. Set the ultrasonic power level. See Section 1.3.4 Setting the Ultrasonic Power. 7. Press the SONIC button. 8. Place the item to be cleaned into the tray and slowly lower it into the tank. When items are processed, slowly remove them from the tank and rinse them with clean, warm water. When handling items that have been through the support removal process or when placing items into the tank for a support removal cycle, wear protective nitrile gloves. PostProcess Technologies, Inc. www.postprocess.com REV A page 12

1. OPERATION 1.4.3 Auto Ultrasonic Mode To run a Support Removal cycle in Auto Ultrasonic Mode, use the following steps: 1. Turn on Master Power Switch (See Figure 1. Master Power Switch) 2. Press the ON/STANDBY Button (See Figure 2. Control Screen) 3. If necessary, run a Degas cycle. See Section 1.3.6 Degas Timer and Degas Operations for more information. 4. Use the UP/DOWN buttons to set the time you want the cycle to run. 5. Set the detergent temperature in the tank by pressing the Fn Button once (See Section 1.3.2 Setting the Target Temperature). The Set Temperature icon will flash. Next, press the UP/DOWN Buttons to set the tank to the desired temperature and activate the heater by pressing the HEAT Button. 6. Set the ultrasonic power level. See Section 1.3.4 Setting the Ultrasonic Power. 7. Press the SONIC button. 8. Press the AUTO button. The cycle will not begin until the temperature set point is reached. 9. Place the item to be cleaned into the tray and slowly lower it into the tank. When items are processed, slowly remove them from the tank and rinse them with clean, warm water. 10. While running in Auto Mode the Fn Button is deactivated. While running ultrasonics in any mode, to pause or stop ultrasonics press the SONIC button. Press the SONIC button again to resume. If the AUTO button is pressed while running in Auto Mode the cycle pauses but will restart from the beginning of the cycle when the AUTO button is pressed to resume operation. 2. MAINTENANCE OPERATIONS 2.1 CENTI Drain Valve Installation The CENTI is equipped with a drain valve located on the side of the unit. See Figure 13. Drain Valve. (If you stand in front of the CENTI the drain valve will be located on the left side of the unit.) Figure 13. Drain Valve The drain should always be installed using Teflon sealing tape. Hand tighten the valve and finish with an adjustable or 21mm wrench. Do NOT overtighten the valve as it may cause damage to the ultrasonic tank. Hand tighten the white plastic hose adaptor into the end of the drain valve. (See arrow left) Slide the drain tube over the ridged hose adaptor end. PostProcess Technologies, Inc. www.postprocess.com REV A page 13

2. MAINTENANCE OPERATIONS Drain Valve Assembly Overview 2.2 Filling the Tank Figure 14. Drain Valve Assembly Prior to filling the CENTI the unit should be powered off and the plug should be removed from the cord receptacle, located on the back of the unit as shown below. Close the drain valve by turning it clock-wise 90 degrees until it is perpendicular to the valve body. The CENTI is ready to be filled. Figure 15. Power Cord Receptacle CAUTION Only use POSTPROCESS detergents in the CENTI. Using any other detergents may damage the CENTI and void your warranty. PostProcess Technologies, Inc. www.postprocess.com REV A page 14

2. GENERAL CARE AND MAINTENANCE 2.3 Tank Temperature Calibration The CENTI tank temperature control is factory calibrated. Monthly temperature calibration should be performed to keep the CENTI running at peak efficiency. Calibration can occur while detergent is at room temperature or any other operating temperature. To calibrate: 1. Press the Fn Button four times until the Current Temperature icon is flashing. Press the UP button to select F. Next press the Fn button two more times to ready the unit. 2. Press the ON/STANDBY button to turn off the CENTI. 3. Press both the ON/STANDBY button and the Fn button simultaneously. The bottom left temperature digits and the Current Temperature icon will illuminate as shown right. 4. Stir the detergent in the tank for 15 seconds to ensure it is at a thermal uniformity. 5. After waiting two minutes the temperature can be measured to check calibration temperature. Use the ON/STANDBY button to change the actual temperature to the measured temperature. 6. Press the ON/STANDBY button to end the calibration process. 2.4 Draining the Tank Prior to draining the CENTI the unit should be powered off and the plug should be removed from the cord receptacle as shown in Figure 15. Power Cord Receptacle. Make sure the drain tube is linked to a proper storage receptacle for the used detergent. Open the drain valve by turning it counter-clockwise 90 degrees until the valve is parallel to the valve body. The unit should begin draining. Properly dispose of all detergents according to local disposal guidelines. Always wear protective nitrile gloves and eye protection when handling detergents. 2.5 Cleaning the Tank First, drain the tank following the steps outlined in Draining the Tank. Anytime the CENTI tank is emptied, operators should perform a close visual inspection of the tank to remove any contaminants or debris. To avoid scratching or damaging the tank use water and a non-abrasive cloth to wipe down the interior of the unit. Always wear protective nitrile gloves and eye protection when handling detergents. PostProcess Technologies, Inc. www.postprocess.com REV A page 15

2. GENERAL CARE AND MAINTENANCE It is recommended to check any baskets or trays that are being used during the support removal process to ensure they are free from contaminants also. Any baskets or other equipment can be cleaned using warm water and a soft cloth. CAUTION Never immerse the CENTI in water as the electronics will be damaged. ALWAYS turn the unit off prior to cleaning, filling or draining and be sure to remove the plug from the receptacle and from the power source. 2.6 Maintaining Proper Detergent Levels To remain at peak support removal efficiency, the CENTI should always have the proper level of detergents in the tank. As shown in Figure 16. Fluid Level Indicator below, there is a visual marking fluid level indicator on the inside of the tank. Figure 16. Fluid Level Indicator When parts are being removed from the CENTI after the support removal process use extreme caution to ensure that excessive amounts of detergents aren t spilled or lost unnecessarily. Sometimes when larger or bulky parts are processed, it is inevitable that fluids will be lost when the part is removed from the tank. It is important to monitor the detergent levels and refill the tank as necessary. See Section 2.2 Filling the Tank for more information. Whenever larger amounts of detergents are added to bring the levels back up to optimal levels, a Degas cycle may be necessary to remove excess gases. See Section 1.3.6 Degas Timer and Degas Operations for more information. PostProcess Technologies, Inc. www.postprocess.com REV A page 16

2. GENERAL CARE AND MAINTENANCE 2.7 Tank Capacity Operators should always use care when loading and unloading parts. Always use a tray or basket to hold the parts being cleaned in the support removal process. There should always be at least an inch of space between the bottom of the tank and the bottom of the tray/basket holding the parts. This space is needed to allow for adequate cavitation and detergent flow into and around the parts. Never overfill the tank because when parts are added, the detergent levels rise as they are displaced by the solid parts being processed. Always remove the tray or basket carefully to avoid detergent spillage. Whenever working near the detergents or the tank, wear eye protection and nitrile gloves. If bare skin comes into contact with detergent, immediately rinse the affected skin with warm water and soap. 2.8 Covering the Tank CAUTION If a part is resting on the bottom of the tank it may not be cleaned properly and the CENTI could be damaged. It is important to keep the tank cover on the CENTI at all times. The cover allows the tank to reach and maintain the desired liquid temperature more quickly and allows the CENTI to run more efficiently. Keeping the cover on at all times will reduce the amount of detergent that is lost to evaporation and spillage. CAUTION Never place any weight on the cover as it may become damaged or mis-shapen. Avoid storing any objects on or above the CENTI as falling objects will damage the cover and may damage the CENTI. Figure 17. Tank Cover and Ventilation PostProcess Technologies, Inc. www.postprocess.com REV A page 17

3. TROUBLESHOOTING Most instances where the CENTI is not performing to expectations can be easily resolved by simple troubleshooting procedures. Below is a list of issues that may arise during post-processing operations. 3.1 The CENTI will not start Step 1) Verify that the CENTI is properly connected to power. See Section 1.1 Connecting Power to the CENTI for more information. Step 2) Press the Master Power Switch to the I or On position. Press the ON/STANDY button. If there is still no power to the CENTI, it means that the ON/STANDY button is malfunctioning or that the machine has blown a fuse. Step 3) Contact POSTPROCESS Support for further instruction or service. 3.2 The tank won t drain when the valve is open When the valve is open and the tank is not draining is an indication that the drain may be plugged with debris from the support removal process. Carefully remove all of the detergent from the tank by transferring it out with a spare container. Operators MUST wear eye protection and nitrile gloves to avoid allowing detergent to touch bare skin. Once emptied, visually check the drain area for contaminant buildup and remove if necessary. Remove drain valve assembly. Refer to Section 2.1 CENTI Drain Valve Installation for information. Clean and rinse all valve assembly parts and remove any debris. Reassemble the drain valve assembly. 3.3 The CENTI display panel is blank A blank display panel while the CENTI is still operational typically indicates that the main control board has failed and will need to be replaced. Contact PostProcess support for further information or service. 3.4 The CENTI has shut down and there is an Alarm Indicator on the display panel If the CENTI shuts down and an Alarm indicator shows up on a blank display, the CENTI has potentially reached an overheating condition. Turn the unit off completely and allow it to cool down. After 15 minutes restart the CENTI. The Alarm Bell shown left is an indicator of an abnormal operating condition. Most often it is an overheating condition. The CENTI should not be used if this icon is displayed on the screen. If after a cool down period the alarm is still present, contact POSTPROCESS Support for further instructions. 3.5 An Error Code (Err) is on the display panel Any time the CENTI has sensor components that are malfunctioning, the display panel will show an Error Code. Never attempt to operate the CENTI if an Error Code is present. Contact POSTPROCESS Support for further instruction or service. PostProcess Technologies, Inc. www.postprocess.com REV A page 18

3. TROUBLESHOOTING 3.6 The CENTI is on but the detergent is not heating up to the set temperature First verify that the target temperature has been set properly. See Section 1.3.2 Setting the Target Temperature for verification that the process was followed. Verify that the Tank Cover is on the CENTI. If the target temperature was set properly, perform a temperature calibration to ensure the heater is working correctly. See Section 2.3 Tank Temperature Calibration for more information. If the CENTI is still not reaching the desired temperature, contact POSTPROCESS support for further information. 3.7 Where can I find the CENTI Serial Number The serial number plate can be found on the rear panel of the machine and resembles the ID plate as shown below. 4. POINT OF CONTACT For Questions and Support for the CENTI, please contact PostProcess Technologies: 2495 Main Street, Suite 615 Buffalo, NY 14214 USA +1 866 430 5354 support@postprocess.com PostProcess Technologies, Inc. www.postprocess.com REV A page 19

5. REVISION HISTORY Revision History REV List of Changes Written By Approved By Approval Date A Original Release Tech Writer (BG) Marketing (ML) Project Eng (BS) Eng Mgr (MF) 3/26/2018 PostProcess Technologies, Inc. www.postprocess.com REV A page 20