CS SERIES Control System CS200 OPERATION & MAINTENANCE INSTRUCTIONS CAUTION - SAFETY FIRST! • REVIEW AND UNDERSTAND ALL SAFETY PROCEDURES IN THE “HANDLE WITH CARE” BOOKLET FORM # TW-10 P/N 7950-8052 BEFORE ATTEMPTING TO INSTALL, OPERATE OR PERFORM MAINTENANCE ON THIS LN2 CONTROLLER. • DO NOT ATTEMPT TO USE OR MAINTAIN ANY LIQUID NITROGEN FREEZER UNTIL YOU READ AND UNDERSTAND THESE INSTRUCTIONS. • DO NOT PERMIT UNTRAINED PERSONS TO USE OR MAINTAIN THIS UNIT.
CS SERIES TABLE OF CONTENTS SAFETY PRECAUTIONS.................................................................................. 3 Liquid Nitrogen ....................................................................................................... 3 Extreme Cold - Cautionary Statement .................................................................... 3 Keep Equipment Area Well Ventilated .................................................................... 3 Liquid Nitrogen System .....................
CS SERIES TABLE OF CONTENTS (continued...) Error Logs.............................................................................................................. 34 System Logs........................................................................................................... 34 Temperature Logs ................................................................................................. 34 Erase Logs..............................................................................................
CS SERIES SAFETY PRECAUTIONS Liquid Nitrogen Nitrogen is an inert, colorless, odorless, and tasteless gas making up four-fifths of the air you breathe – and can be very dangerous. Air is roughly one-fifth oxygen. Liquid nitrogen is at a temperature of -196°C (-320°F) under normal atmospheric pressure. Cryogenic freezers are used in LN2 service only.
CS SERIES For more detailed information concerning safety precautions and safe practices to be observed when handling cryogenic liquids consult CGA publication P-12 “Safe Handling of Cryogenic Liquids” available from the Compressed Gas Association: CGA website: www.cganet.com; CGA customer service +1.703.788.2700; or email customerservice@cganet.com.
CS SERIES CS SERIES Control System Specifications Control Type: LN2 Level Control & Temperature Control Level Measurement Sensor Type: 8-Thermistor Fixed 4-Thermistor Adjustable Range: 8 inch range (8-Thermistor) Low, Normal, High (4-Thermistor) Redundancy Multiple discrete points Temperature Measurement: Sensor Type: Type T Thermocouples Accuracy of 1.5% with Resolution of 0.1°c Number of Channels: 2 Temperature Display Units: °C, F, K, R Electrical: Input Voltage: 100-240 VAC Input Current (max: 1.
CS SERIES 6 Alarms (continued...
CS SERIES DELIVERY AND RETURNS Unpacking and Inspection Inspect shipping containers for external damage. All claims for damage (apparent or concealed) or partial loss of shipment must be made in writing within five (5) days from receipt of goods. If damage or loss is apparent, please notify the appropriate parties as indicated below: Domestic LTL Shipments – The customer should notify and file the appropriate damage claims with the carrier. All products are shipped FOB Origin. Figure 1.
CS SERIES If possible, the original packing material should be retained for reshipment. If not available, consult Taylor-Wharton for shipping and packing instructions. It is the responsibility of the customer to assure that the goods are adequately packaged for return to the factory. All refrigerators returned to Taylor-Wharton must be clean and sterile before return. Refer to the operating manual of the freezer you are using for cleaning instructions.
CS SERIES EN Compliance tables found on pages 43-46. Care should be taken to use only manufacturer-recommended cables, power supplies and electrical accessories with the CS SERIES Control System.
CS SERIES Control Components CS SERIES Control System Components The CS SERIES Control System for the Taylor-Wharton Cryostorage freezer consists of the following components: • • • • • • • • • • • • • Main Control Module VFD (Vacuum Florescent Display) Module Shielded Display Cable Wiring Harness Assembly Power Supply Thermocouple Assembly (Optional Second Thermocouple) Sensor Assembly Cryogenic Solenoid Valve Remote Alarm Plug Lid Switch Assembly 12 Volt, 18aH battery Solenoid Valve Assembly with Freezeg
CS SERIES Operational Theory The CS SERIES Control System automatically maintains the Liquid Nitrogen (LN2) level and monitors temperature in the Cryogenic freezer. Operational conditions are monitored and any alarm is triggered if necessary. Operations data is stored in memory on the control board. #8 #7 High Level Alarm #6 Stop Fill #5 #4 Start Fill #3 Low Level Alarm #2 #1 Figure 3.0 Thermister LN2 Level The CS CONTROL SYSTEM uses thermistors to measure the LN2 level within the vessel.
CS SERIES The LN2 level is indicated on the display and is determined by the number of thermistors submerged in LN2 according to the table below: Table 1.
CS SERIES Table 2.0 Alarm Conditions ALARM PROBLEM DETECTED Operating in Battery Mode Alarm Warning The power from the power supply has been disrupted and the control system is operating on battery power. Low Battery Voltage The voltage on the battery is low. Lid Open Too Long Alarm The lid has been opened for a period which is longer than the designated alarm setting. Valve Stuck Open Alarm The valve is stuck open.
CS SERIES Power Supply A 12 VDC power supply is supplied for the CS SERIES Control System. The system is supplied with a transformer compatible with common household (North American) 100/240 VAC. (For other power outlets contact Taylor-Wharton Customer Service.) UL approval for the system as a whole is not required since the control operates on low voltage. If your power source differs, or is subject to disruption or line surges due to other equipment on line, consult your Taylor-Wharton representative.
CS SERIES Temperature Monitoring The CS SERIES Control System uses a type T thermocouple to monitor the temperature in the vessel. The thermocouple is factory-installed near the top of the Taylor-Wharton Cryostorage freezer vapor chamber and the temperatures are measured at that point. The CS SERIES Control System accommodates a second user-installed thermocouple for temperature measurement at a secondary location. This is also a Type T thermocouple.
CS SERIES In addition, inspection and preventive maintenance should also be performed on the freezer and its mechanical parts. Refer to owner’s manual for details. If any intermittent alarm or defect with the Cryo-Storage System is observed or suspected, it should be investigated and remedied immediately even if this falls outside of the normal maintenance schedule. CONTROLLER OPERATION This section of the operating manual is for Taylor-Wharton approved equipment that uses the CS SERIES Control System.
CS SERIES Control Setting Adjustments Level The standard sensor assembly that is installed on a freezer consists of a circuit board with thermistors installed. The assembly has a maximum range of 6 inches (150mm). Thermistor assignments can be changed through the menu system and the operating range can be changed by either raising or lowering the circuit board (offset) within the freezer.
CS SERIES View Only The View Only menu selection allows the user to view settings but will not allow changes to any settings. This restriction is designated with a lock symbol. Refer to Figure 8.1 Menu System - View Only on page 22 to navigate the “View Only” menu. Change Settings The Change Settings menu selection allows the user to change operational settings for the control system. Refer to Figure 8.2 Menu System - Change Settings on page 23 to navigate through any changes you need to make.
CS SERIES –– Sensor Type: Allows the user to set the sensor type as a 4 thermistor sensor or an 8 thermistor sensor. Also allows the user to disable the freezeguard sensor. –– Level Sensor Alarm • Sensor Error Mute: Allows the user to mute the audible alarm for a sensor error. • Freezeguard Error Mute: Allows the user to mute the audible alarm for a freezeguard sensor error. • SYSTEM –– Inch/Metric: Allow the user to switch between English and Metric level measurement systems.
CS SERIES • Remote Alarm Delay: Allows the user to set the time before the remote alarm relay is triggered after an error condition occurs. Settings [Immediate, 30, 60, 90 min] or [2,3, 4, 6 hours] • Lid Open Alarm Delay: Allow the user to set the time before an alarm condition occurs if the lid is opened too long. • Valve Stuck Alarm: Allow the user to enable/disable this feature.
CS SERIES Temperature Control The CS SERIES Control System has the capability to control the vapor temperature at the top of the freezer. The temperature is controlled at the location of thermocouple 1. To maintain temperature, the CS200 SERIES Control System bubbles N2 gas through the pool of LN2 in the bottom of the freezer. The nitrogen gas evaporates some of the LN2 causing a cooling effect reducing the temperature in the freezer.
CS SERIES MENU VIEW ONLY TEMPERATURE THERMOCOUPLE SELECT TEST TEMPERATURE SYSTEM CONTROL BY TEMPERATURE TEMPERATURE ALARMS T/C 1 ON/OFF T/C ON/OFF CHECK THERMOCOUPLES VALIDATE CALIBRATION TEST TEMP ALARMS TEMP CONTROL ON/OFF TEMP CONTROL RANGE HIGH TEMPERATURE ALARM LOW TEMPERATURE ALARM TEMPERATURE UNITS LEVEL THERMISTOR STATUS SENSOR POSITIONS VALVE OPEN DURATION SENSOR TYPE LEVEL SENSOR ALARM SYSTEM INCH/METRIC DATE/TIME LID FUNCTIONS SYSTEM ALARMS TIME WITH NO TEMP ALARM CELCIUS FAHRENHEIT K
CS SERIES CHANGE SETTINGS TEMPERATURE THERMOCOUPLE SELECT CALIBRATE T/C 1 ON/OFF T/C ON/OFF CALIBRATE THERMOCOUPLE 1 TEST TEMPERATURE SYSTEM CONTROL BY TEMPERATURE TEMPERATURE ALARMS CALIBRATE THERMOCOUPLE 2 RESTORE CALIBRATION SET AMOUNT CHECK THERMOCOUPLES VALIDATE CALIBRATION TEST TEMP ALARMS TEMP CONTROL ON/OFF TEMP CONTROL RANGE HIGH TEMPERATURE ALARM LOW TEMPERATURE ALARM LEVEL TEMPERATURE UNITS THERMISTOR STATUS SENSOR POSITIONS VALVE OPEN DURATION SENSOR TYPE LEVEL SENSOR ALARM SYSTEM INC
CS SERIES Factory Defaults 24 Thermocouple #1 On Thermocouple #2 Off Control by Temperature Off High Temperature Alarm #1 -100C High Temperature Alarm #2 -100C Low Temperature Alarm #1 Off Low Temperature Alarm #2 Off Temperature Units Celsius Sensor Position Freezer dependant Valve Open Duration Off Sensor Type 8 thermistor sensor Freezeguard feature On Sensor Error Mute Off Freezeguard Error Mute Off Level Units of Measure inch Date/Time Factory Set for Eastern Standard T
CS SERIES Troubleshooting If the Taylor-Wharton Cryostorage freezer with the CS200 SERIES Control System installed experiences problems or appears that it is not operating at optimum efficiency, please contact your distributor for assistance. The CS SERIES Control System has incorporated state of the art diagnostic tools to assist in the identification and correction of any issues that may arise. Interconnection Block Diagram Figure 9.
CS SERIES Wiring Diagram 4 wires Pod 1 4 wires 10 wires 10 wires Pod 2 position 1 P1P1 position 2 P1P2 position 1 P2P1 position 2 P2P2 Blue Red P1P1 P1P1 2 1 Valve Yellow + White/Yellow Orange + White/Orange Brown + White/Brown Yellow/Green White P2P1 P2P1 P2P1 P1P1 P1P1 5 4 3 2 1 Remote Alarm Remote Alarm Remote Alarm Power Power White/Black Red + Black White/Red P2P1 P2P1 P2P1 3 2 1 RS-232 Black Brown Red Orange Yellow P2P2 P2P2 P2P2 P2P2 P2P2 P2P2 6 5 4 3 2 1 Harness Control E
CS SERIES Installation & Setup The CS SERIES Control System consists of the following components. • Main Control • VFD Display Module • Wiring Harness Assembly • Power Supply • Thermocouple Assembly • Lid Switch Assembly • Sensor Assembly • Cryogenic Solenoid Valve • Remote Alarm Plug • LN2 • Plumbing Connect the wiring harness assembly to the main control. The connector is keyed and can only be plugged in one way. Main Harness Connector Display Connector T/C #1 T/C #2 Figure 11.
CS SERIES Connect the level sensor assembly into the pigtail with the round connector terminating at the control end of the harness assembly. The connector is a round locking connector that is keyed so it can only be plugged in one way. Connector to Main Control Connector for Level Sensor Figure 13.1 Harness Assembly Figure 13.2 Senor Assembly Connector Connect the solenoid valve and the lid switch into the appropriate connectors on the connector box.
CS SERIES Connect the Remote Alarm plug into the panel at the end of the wiring harness assembly. This is keyed so that it can only be plugged in one way. Remote Alarm Connector Cryowire Dual Communication Ports Figure 15.0 Finally, connect the barrel plug of the power supply and the battery into the appropriate receptacles in the connector box. Cryowire Communication Port Power Connector Battery Connector Figure 16.
CS SERIES Temperature Thermocouple Select The chamber temperature is monitored with 1 or 2 Type T thermocouples. The thermocouple is placed in the chamber to monitor temperature level at the top of the inventory system. Factory installation includes one thermocouple inside of the LABS thermocouple tube or inside of the thermocouple tube at an elevation to match the height of standard racks. A second Type T thermocouple may be added to monitor another location inside the chamber.
CS SERIES Table 4.0 Temperature Calibration Instruction Access the menu by pressing Highlight CHANGE SETTINGS and press Highlight TEMPERATURE and press Highlight CALIBRATE and press Highlight CALIBRATE THERMOCOUPLE 1. The display will read Dip the thermocouple into ice water. Submerge the thermocouple into an ice water bath. The bar graph will fluctuate. When a good stable reading in obtained, the bar graph will decrease to 1 or 2 bars.
CS SERIES Alarms and Error Conditions The CS SERIES Control System control tracks many different conditions in the freezer and therefore, has a full complement of alarms associated with these different conditions. As alarms occur, they cause an audible beep as well as a flashing red light on the same wheel. A remote alarm relay is also triggered following a userdesignated period of time, after the error condition occurs, if it is not corrected.
CS SERIES Logging On board memory logging function is one of the most powerful and useful features of the CS SERIES Control System control. It provides a historical record for not only your freezer but also a complete record of the environment in which specimens were stored. Four separate logs are kept in the control: 1. System log – System logs are events that occur in the system including lid opening/closing, LN2 filling, Quick-Chill, Defog. 2.
CS SERIES DUMP ERROR LOGS is accessible through the menu system of the control. This option sends data from the error logs to the serial port of the freezer. When this option is chosen, the display reports how many error logs are in the system. While the data is being sent out the serial port, it can be paused or completely cancelled through the menu system. DUMP TEMP LOG #1 and TEMP LOG #2 are accessible through the menu system of the control.
CS SERIES Erase Logs ERASE LOGS is accessible through the menu system of the control. This menu choice erases any of the four logs found in the control. Please note that once a log has been erased, it is gone forever. ERASE SYSTEM LOGS). ERASE ERROR LOGS. ERASE TEMPERATURE LOG #1. ERASE TEMPERATURE LOG #2. Display Brightness DISPLAY BRIGHTNESS can be set through the menu system of the control. This option changes the intensity of the display. The possible choices are 25%, 50%, 75% and 100%.
CS SERIES Removing/Installing the Solenoid Valve The LN2 and power must be turned off before beginning work on the solenoid valve. For LABS Units Disconnect only the solenoid valve lead connection from the back of controller board. To remove the solenoid valve, loosen the compression fitting that connects the plumbing tubing to fill tube. Unscrew the two (2) mounting screws that hold the solenoid valve to the solenoid bracket. Then remove the solenoid valve and its associated plumbing.
CS SERIES Plumbing Assembly Solenoid Valve Freeze-Guard Sensor Male Branch Tee 90 deg Elbow 90 deg Elbow Male Branch Tee Reducer Relief Valve Tube Strainer Female Connector Relief Valve Figure 17.0 LABS Plumbing Assembly TROUBLESHOOTING Symptoms The key to troubleshooting your CS SERIES Control System and your cryostorage system is to determine which component in the system is the source of the problem.
CS SERIES Indicates High Liquid Level 1. Determine actual liquid level using a dipstick. Select MENU, LEVEL SENSING, TEST LEVEL SENSORS. An “L” or “G” will indicate individual thermistor status. “L” meaning that the thermistor is submerged in liquid and “G” indicates that the thermistor is in cold. A fill solenoid valve that freezes (or sticks) open will typically empty the supply cylinder. Replace solenoid valve if it has failed even once. 2. Liquid level is sensed by thermistors located in a sensor tube.
CS SERIES Indicates Low LN2 Supply When the START FILL thermistor is uncovered, the controller calls for the fill solenoid valve to open. If the STOP FILL thermistor is not covered with LN2 in the predetermined amount of time, the controller is programmed to interpret this as a LN2 supply shortage. 1. Check contents gauge and pressure gauge of supply cylinder. Both liquid contents and pressure (15 to 22 psi - 0.7bar/69kPa to 1.4 bar/138 kPa) are required to complete a fill. 2.
CS SERIES Fill Solenoid Cycles On and Off CS SERIES Control System features a timer function whereby the valve open duration is limited, allowed to shut for a short warm-up and then opened again. To confirm or change the valve open duration: • Select MENU, USER OPTIONS, CONTROL OPTIONS, FREEZE-GUARD OPTIONS, VALVE OPEN DURATION. If the controller Freeze-Guard function detects that the valve is stuck in the open position (i.e.
CS SERIES QCF (Quick Chill Feature) Will Not Operate See LID OPEN ALARM To activate or adjust times: Select MENU, USER OPTIONS, CONTROL OPTIONS, LID/DEFOG SETTINGS, QUICK CHILL. Defog Feature Will Not Operate See LID OPEN ALARM. To activate or adjust times: Select MENU, USER OPTIONS, CONTROL OPTIONS, LID/DEFOG SETTINGS, AUTO DE-FOG. Push Buttons Will Not Respond Moisture may have migrated into the sealed faceplate. Call Taylor-Wharton for a Return Authorization.
CS SERIES SERVICE AND MAINTENANCE HISTORY LOG Fill in top section at installation. Copy this form each time service is required. Fill bottom section with service notes to keep a complete log of each freezer service and maintenance history.
CS SERIES Appedix Certifications & Listings This product complies with the following standards and directives: • CB Scheme Report and Certificate • IEC 61010-1 • UL 61010-1 • CAN/CSAC22.2#61010-1 • 93/42/EEC Medical Device Directive for the European Union • IEC 60601-1-2, 2007 Edition 3.0 (EMC Directive) • RoHS Directive • WEEE Directive • Packaging Directive • ETL/cETL Listing for North America • CE marked to the Low Voltage Directive EN Compliance Tables Table 6.
CS SERIES Table 7.0 Guidance and Manufacturer’s Declaration – Electromagnetic Immunity The CS CONTROL SYSTEM is intended for use in the electromagnetic environment specified below. The customer or the end user of the CS CONTROL SYSTEM unit should assure it is used only in such an environment.
CS SERIES Table 8.0 Guidance and Manufacturer’s Declaration – Electromagnetic Immunity The CS CONTROL SYSTEM is intended for use in the electromagnetic environment specified below. The customer or the end user of the CS CONTROL SYSTEM should assure it is used in such an environment.
CS SERIES Table 9.0 Recommended separation distances between portable and mobile RF communications equipment and the CS CONTROL SYSTEM. The CS CONTROL SYSTEM is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
CS SERIES Declaration of Conformity EC DECLARATION OF CONFORMITY The undersigned representing the manufacturer Pacer Digital Systems, Inc. Attn: Kevin Oeff 8658 Castle Park Drive Suite 103 Indianapolis, IN 46256 USA Herewith declared that the Product: LN2 Level Control for Cryostorage System Model/Type ref.
CS SERIES This warranty is also void if the product is in any way altered or repaired by others. Taylor-Wharton shall not be liable under this warranty, or otherwise, for defects caused by negligence, abuse or misuse of this product, corrosion, fire or the effects of normal wear. The remedies set forth herein are exclusive.
CS SERIES Cryowire Network Cryowire Network Power 12 VDC, 3A Cryowire Local NO Battery 12V, 2.5A 4075 Hamilton Blvd. Theodore, AL 36582 1-800-898-2657 www.taylorwharton.com Remote C Alarm NC Figure 18.3 Connector Box Label Figure 18.
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cryoscience@taylorwharton.com www.taylorwharton.com CS Series Control System – 05/13 – P/N 7950-8361 The Americas Phone: + 251-443-8680 Phone: + 800-898-2657 in USA & Canada Australia and Asia Australia Phone: +61 (0) 2 6040-2533 Europe Germany Phone: +49 (0) 4841 9850 China Phone: +86 (0) 316 8219770 Slovakia Phone: +421 (0) 55 727 7138 Malaysia Phone: +60 (0) 3-51913003 ©2013 Taylor-Wharton International. All rights reserved.
