Taylor-Wharton CS Series User Manual

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 LN

• 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.

• IF YOU DO NOT FULLY UNDERSTAND THESE INSTRUCTIONS, CONTACT YOUR SUPPLIER FOR FURTHER INFORMATION.

• BEFORE ATTEMPTING TO OPERATE THIS CONTROLLER WITH ANY CRYOSCIENCE BY TAYLOR-WHARTON™ LABS & K SERIES UNITS, YOU MUST READ THE SEPARATE OPERATING AND SAFETY MANUAL PROVIDED WITH THAT TAYLOR-WHARTON UNIT.

*CS SERIES Control Systems are used on all Taylor-Wharton LABS units.

The unit featured is only one of the cryostorage systems available in the CryoScience by Taylor-Wharton™ lines.

CONTROLLER.

TABLE OF CONTENTS

SAFETY PRECAUTIONS ................................................................................. 3

Liquid Nitrogen ...................................................................................................... 3

Extreme Cold - Cautionary Statement ...................................................................3

Keep Equipment Area Well Ventilated ...................................................................3

Liquid Nitrogen System .......................................................................................... 3

Electrical .................................................................................................................3

GENERAL INFORMATION ............................................................................ 4

CS SERIES Control System Speciﬁcations ................................................................. 5

DELIVERY AND RETURNS.............................................................................. 7

Unpacking and Inspection ......................................................................................7

Freight Damage Procedures ..................................................................................7

Repackaging for Shipment ..................................................................................... 7

INSTALLATION ............................................................................................. 8

Getting Unit into Service ........................................................................................8

Electrical ................................................................................................................8

Electromagnetic Compatibility (EMC) ....................................................................8

Power Supply Connection .....................................................................................9

Validation ..............................................................................................................9

CS SERIES

OPERATION ................................................................................................. 9

Initial Fill ................................................................................................................ 9

Control Components ............................................................................................ 10

CS200 Controller Display Guide ........................................................................... 10

Operational Theory ..............................................................................................11

Operating Parameters .........................................................................................14

Temperature Monitoring .......................................................................................15

Liquid Phase Storage ............................................................................................15

Maintenance ......................................................................................................... 15

CONTROLLER OPERATION ......................................................................... 16

Introduction .........................................................................................................16

Operation Data .....................................................................................................16

Communications ................................................................................................... 16

Normal Fill Cycle .................................................................................................16

Control Setting Adjustments .................................................................................17

Temperature .........................................................................................................20

Battery Operation ................................................................................................ 21

Lid Switch ..............................................................................................................21

Interconnection Block Diagram .............................................................................25

Wiring Diagram ....................................................................................................26

Installation & Setup...............................................................................................27

Diagnostic Menu .................................................................................................. 29

External Connector Ratings ..................................................................................29

LED Status Wheel Flash Patterns ........................................................................... 29

Temperature Thermocouple Select ....................................................................... 30

Temperature Calibration ..................................................................................... 30

Test Temperature System .......................................................................................31

Test Level Sensors .................................................................................................31

Alarms and Error Conditions ...............................................................................32

System Alarms ......................................................................................................32

Test Alarms ..........................................................................................................32

Logging ................................................................................................................. 33

Dump Logs ............................................................................................................ 33

CS SERIES

TABLE OF CONTENTS (continued...)

Error Logs .............................................................................................................34

System Logs ..........................................................................................................34

Temperature Logs ................................................................................................34

Erase Logs ............................................................................................................. 35

Display Brightness ................................................................................................35

Making Adjustments to the CS SERIES Control System Sensor Assembly .............35

Removing/Installing the Solenoid Valve ...............................................................36

Controller Electrical Tests ...................................................................................... 36

Plumbing Assembly ............................................................................................... 37

TROUBLESHOOTING .................................................................................. 37

Symptoms .............................................................................................................37

Controller Will Not Turn ON ................................................................................37

Indicates High Liquid Level .................................................................................. 38

Indicates Low LN2 Supply ...................................................................................... 39

Indicates Open Sensor .......................................................................................... 39

Temperature Reading 10 to 20 Degrees Warm .....................................................39

Fill Solenoid Cycles On and Off ............................................................................ 40

Fill Solenoid Makes Excessive Humming Noise ..................................................... 40

Display = “Check” ............................................................................................... 40

Lid Open Alarm ....................................................................................................40

QCF (Quick Chill Feature) Will Not Operate .......................................................41

Defog Feature Will Not Operate .......................................................................... 41

Push Buttons Will Not Respond ............................................................................ 41

Liquid Level Readout is Incorrect .........................................................................41

Power Failure Alarm ............................................................................................41

REPLACEMENT PARTS ................................................................................ 41

SERVICE AND MAINTENANCE HISTORY LOG ............................................. 42

Appedix ...................................................................................................... 43

EN Compliance Tables ..........................................................................................43

Declaration of Conformity ....................................................................................47

Warranty ............................................................................................................... 47

Labels ...................................................................................................................48

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.

Extreme Cold - Cautionary Statement

Accidental contact of liquid nitrogen or cold issuing gas with the skin or eyes may cause a freezing injury similar to frostbite. Handle the liquid so it won’t splash or spill. Protect your eyes and cover the skin where the possibility of contact with the liquid, cold pipes and equipment, or cold gas exists. Safety goggles or a face shield should be worn when operating this equipment. Insulated gloves that can be easily removed and long sleeves are recommended for arm protection. Trousers without cuffs should be worn outside boots or over the shoes to shed spilled liquid.

Keep Equipment Area Well Ventilated

Although nitrogen is non-toxic and non-ﬂammable, it can cause asphyxiation in a conﬁned area without adequate ventilation. Any atmosphere not containing enough oxygen for breathing can cause dizziness, unconsciousness, or even death. Nitrogen, a colorless, odorless, and tasteless gas that cannot be detected by the human senses, will be inhaled normally as if it were air. One (1) liter of liquid nitrogen is equivalent to 696 liters of nitrogen gas. Without adequate ventilation, the expanding nitrogen will displace the normal air resulting in death.

WARNING: The following safety precautions are for your protection. Before installing, operating, or maintaining this unit read and follow all safety precautions in this section and in reference publications. Failure to observe all safety precautions can result in property damage, personal injury, or possibly death.

WARNING: Maintain adequate ventilation to prevent asphyxiation hazard (see Safety Precautions).

Liquid Nitrogen System

The liquid nitrogen supply pressure at the inlet to the refrigerator should be in the range of 10 psig (0.7 bar/69 kPa) to 20 psig (1.4 bar/138 kPa) for optimum performance. Higher operating pressures will increase transfer losses and create excessive turbulence of the liquid in the refrigerator, which can generate false signals to the liquid level controller causing the refrigerator to under-ﬁll. In “liquid phase” storage applications, excessive turbulence can cause splashing which could result in personal injury and/or damage to the refrigerator. When installing piping or ﬁll hose assemblies, make certain a suitable safety relief valve is installed in each section of plumbing between any two isolation points. Trapped liqueﬁed gas will expand greatly as it warms and may burst hoses or piping causing damage or personal injury. A relief valve is installed in the refrigerator plumbing to protect the line between the customer supplied shut-off valve and the refrigerator solenoid valve. Relief valves can be piped to the outside of the building.

Electrical

• This product is not intended for a life support function.

• This product is intended to be used in hospitals and clinics.

• This product has no Radio Transmitter (Intentional Radiator) functions.

• This product is not intended for electromagnetic shielded rooms only.

• This product does not intentionally apply RF energy for its function.

• This product does not intentionally receive RF energy for its function.

Caution: When installing ﬁeld fabricated piping, make certain a suitable safety relief valve is installed in each section of piping between any two isolation points.

WARNING: Inlet pressure should not exceed 22 psig (1.5 bar/152 kPa). Higher pressures could result in damage to equipment.

WARNING: Electrical shock can kill. Do not attempt any service on these units without ﬁrst disconnecting the electrical power cord.

The liquid level controllers used with these refrigerators operate from 12 VDC. Disconnect the electrical power cord from the outlet before attempting any service.

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.

GENERAL INFORMATION

The CS SERIES Control System can monitor and control both the liquid nitrogen level and the vapor temperature range in the cryostorage unit you have selected. CS SERIES Control Systems are designed to work with Taylor-Wharton LABS Cryostorage Systems. The features are designed to provide a safe environment for samples while at the same time tracking all relevant information associated with the freezer. This control provides a complete historical record of the environment in your unit and therefore, the environment in which your samples have been stored in this system. This controller features a vacuum ﬂuorescent display. The addition of a liquid nitrogen supply and inventory control racks for systematic retrieval of stored product completes the total Cryostorage System.

Taylor-Wharton LABS Cryostorage Systems are designed for applications where extremely low temperature storage of biological products is required. They are also appropriate for industrial or other applications where liquid nitrogen temperatures and high capacity are needed.

Before beginning installation or operation of this CS SERIES Control System, make sure that you read and understand this manual as well as the operating and safety instructions for the cryostorage unit you will be using with this controller.

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

CS SERIES

Temperature Measurement: Sensor Type:

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: 1.75 A Input Current (continuous): 0.5 A Power Consumption (max): 21 W Power Consumption (continuous): 6 W Input Frequency: 50/60 Hz Output: 12 VDC Control Input Voltage: 12 VDC Power Cord: Available for all countries

Battery: Rating: 12 Volt, 18Ah

Type: Absorbent Glass Mat (AGM) Sealed Non-

Spillable Short Protection: Installed PCB with thermal fuse Battery Cover: Vinyl Solenoid Valve Input Voltage: 12 VDC Input Current 0.96 amps

Type T Thermocouples

Communications: Protocol: Connectivity Access Network (CAN)

Number of Communication Ports: 3 User Interface: Display Type Vacuum Fluorescent Display: (VFD) Buttons:11 Level, Temperature and Alarm

Information “At a Glance” Status LED status wheel Filling 1 LED Menu Access 1 LED Power LED

Control Tests: Power Up Self Test Control System Check

Thermistor Status Battery voltage Control voltages Temperature Circuit

Alarms: Low Level Alarm: Always enabled

High Level Alarm: Always enabled Sensor Error Alarm: Always enabled High Temperature Alarm: (T/C #1, T/C #2)

Programmable

CS SERIES

Alarms (continued...): Low Temperature Alarm: (T/C #1, T/C#2)

Programmable Thermocouple Calibration: Alarm Always enabled Thermocouple Open Alarm: Always enabled Power Failure (Remote only): Always enabled Low LN2 Supply Alarm: Programmable Battery Mode Warning: Always enabled Lid Open Too Long Alarm: Programmable Valve Stuck Open Alarm: Programmable Unauthorized Access Warning: Programmable LN2 Usage Warning: Programmable Low Battery Voltage: Always enabled Temperature Alarm Delay: Programmable Audible Alarm: Always enabled Audible Alarm Re-trigger: Programmable Visual Alarm Indicator: Always enabled Remote Alarm Delay: Programmable

Buttons: Power: Turns power on/off

Fill/Defog: Open Solenoid Valve Stop: Close Solenoid Valve Menu: Access Menu Mute: Silence audible Enter: Save a setting or select a menu choice Back/Exit: Leave a setting unchanged or back out

of menu Up Arrow: Scroll the menu system or increase a

value Down Arrow: Scroll the menu system or decrease

a value Left Arrow: Scroll horizontal menu Right Arrow: Scroll horizontal menu

Data Collection: Temperature

Level Alarms Memory: 4 Mb

Dimensions: Display Width: 9.5 in. (241 mm)

Display Height: 2.0 in. (50.8 mm) Display Depth: 1.31 in. (33.3 mm) Display Weight: 0.625 lbs (.28 kg) Main Control Width: 8.875 in. (225.4 mm) Main Control Height: 6.688 in. (169.9 mm) Main Control Depth: 1 in. (25.4 mm) Main Control Weight: 1.0 lbs (.45 kg) Battery Width: 7.25 in. (184.2 mm) Battery Height: 6.375 in. (161.9 mm) Battery Depth: 3.25 in. (82.6 mm) Battery Weight: 12.4 lbs (5.6 kg)

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.

CS SERIES

Figure 1.0 Crated LABS 38K

delivery, and Taylor-Wharton must also be notiﬁed. Conﬁrm with Taylor-Wharton Customer Service the ﬁling procedures for any UPS damage claims.

International Shipments – Any damage and/or claims are to be ﬁled with the carrier. Insurance agent(s) and customs’ brokers should also be notiﬁed.

In all cases, Taylor-Wharton should be notiﬁed so we can assist if needed in ﬁling damage claims.

Open the shipping containers; a packing list is included with the system to simplify checking that all components, cables, accessories, and manuals were received. Please use the packing list to check off each item as the system is unpacked. Inspect for damage. Be sure to inventory all components supplied before discarding any shipping materials. If there is damage to the system during transit, be sure to ﬁle proper claims promptly. Please advise Taylor-Wharton of such ﬁlings. In case of parts or accessory shortages, advise Taylor-Wharton immediately. Taylor-Wharton cannot be responsible for any missing parts unless notiﬁed within 10 days of shipment.

Domestic UPS Shipments – Any damage should be noted and reported to shipper upon

Freight Damage Procedures

Any freight damage claims are your responsibility. Cryostorage Systems are delivered to your carrier from Taylor-Wharton’s dock in new condition; when you receive our product you may expect it to be in that same condition. For your own protection, take time to visually inspect each

shipment in the presence of the carrier’s agent before you accept delivery. If any damage is observed, make an appropriate notation on the freight bill. Then, ask the driver to sign the notation before you receive the equipment. You should decline to accept containers that show damage which might affect serviceability.

Repackaging for Shipment

If it is necessary to return any part of the system for repair or replacement, a Material Return Authorization (MRA) number must be obtained from an authorized factory representative before returning the equipment to our service department. Contact your distributor for return authorization. When returning equipment for service, the following information must be provided before obtaining an MRA:

A. System model and serial number, and controller model and unit, if available. B. User’s name, company, address, and phone number C. Malfunction symptoms

CS SERIES

CAUTION: If using a power source other than North American 110/220 VAC, contact TaylorWharton Customer Service to make sure you are using the appropriate converter. Use of an unapproved power source converter may cause permanent damage to the unit.

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.

INSTALLATION

Getting Unit into Service

Your Cryostorage System comes with complete instructions for how you should remove the unit from the crate and put it into service. Read both this manual and your Cryostorage System’s manual before beginning any installation. Make sure to follow any required procedures and safety guidelines when you are connecting your Liquid Nitrogen source.

The CS SERIES Control System is designed to be operated at normal room temperatures 15° C to 27° C (60° F to 80° F) at a relative humidity level below 50%. The humidity level should be maintained such that the electronics are not exposed to condensation.

The Taylor-Wharton Cryostorage freezer should be positioned such that the all sides of the unit are easily accessible and the user can easily connect/disconnect the power cord from the wall socket.

Proper ventilation MUST BE adequate to sustain life for those working with or maintaining this equipment.

Electrical

WARNING: Electrical shock can kill. Do not attempt any service on these units without ﬁrst disconnecting the electrical power cord.

WARNING: Maintain adequate ventilation to prevent asphyxiation hazard (see Safety Precautions).

WARNING: If the ﬁll fails to stop for any reason, quickly close the liquid supply valve to prevent overﬁlling until the cause of the problem can be determined.

The liquid level controllers used with these refrigerators operate at 12 VDC. The external transformer has a 100/240 VAC primary. Disconnect the electrical power cord from the outlet before attempting any service.

Electromagnetic Compatibility (EMC)

Although this equipment conforms to the intent of the 2004/108/EC EMC Directive, all medical equipment may produce electromagnetic interference or be susceptible to electromagnetic interference. The following are guidance and manufacturer’s declarations regarding EMC for the CS SERIES Control System.

The CS SERIES Control System needs special precautions regarding EMC and needs to be installed and put into service according to the EMC information provided in the following pages.

Portable and Mobile RF communications equipment can affect the performance of the CS SERIES Control System. Please use the guidelines and recommendations speciﬁed in the EN Compliance tables found on pages 43-46.

Other Medical Equipment or Systems can produce electromagnetic emissions and therefore can interfere with the functionality of the CS SERIES Control System. Care should be used when operating the CS SERIES Control System adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the CS SERIES Control System should initially be observed to verify normal operation in the conﬁguration in which it will be used.

The electrical cables, external power supplies and accessories listed or referenced in this manual have been shown to comply with the test requirements listed in the

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. If a third-party supplier offers cables, external power supplies and electrical accessories for use with the CS SERIES Control System and they are not listed or referenced in this manual, it is the responsibility of that third-party supplier to determine compliance with the standards and tests in the EN Compliance tables found on pages 43-46.

The use of electrical cables and accessories other than those speciﬁed in this manual or referenced documents may result in increased electromagnetic emissions from the CS SERIES Control System or decreased electromagnetic immunity of the CS SERIES Control System.

Power Supply Connection

Connect the power supply to your LABS Cryostorage System and then plug the power supply into a surge-protected 110/220 VAC outlet.

Validation

Some organizations require that equipment be validated periodically. If information is needed on the proper techniques to validate this equipment, please contact your supplier.

WARNING: This equipment is intended for use by healthcare professionals. As with all electrical medical equipment, this equipment may cause radio interference or may disrupt the operation of nearby equipment. It may be necessary to take mitigation measures such as re-orienting or relocating the CS SERIES Control System unit or shielding the location.

OPERATION

These instructions are for operators experienced with cryogenic equipment. Before operating the system, become familiar with the safety precautions in this manual and in reference publications. Make certain all applicable provisions set forth in the Installation Section have been followed before placing a system in operation. Study this manual thoroughly. Know the location and function of all system components.

Initial Fill

The Cryostorage System, using the CS SERIES Controller, comes preset from the factory. The liquid nitrogen supply pressure at the inlet to the refrigerator should be in the range of 10 psig (0.7 bar/69 kPa) to 20 psig (1.4 bar/138 kPa) for optimum performance. Higher operating pressures will increase transfer losses and create excessive turbulence of the liquid in the refrigerator which can generate false signals to the liquid level controller causing the refrigerator to under ﬁll. In “liquid phase” storage applications, excessive turbulence can cause splashing which could result in personal injury.

For complete instructions for the initial ﬁll refer the Quick Start Guide that comes with your cryogenic freezer model.

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 Freezeguard

• Strainer

The CS SERIES Control System is assembled onto the freezer at the factory and completely tested. Refer to the Quick Start Guide for freezer set-up. Start operation of the control system by plugging the power cord into the wall outlet. Press and hold the POWER button for 2 seconds. The CS SERIES Control System will go through a short startup routine and then start operation. Refer to Figure 2.0 below CS200 Controller Display for a description of the controller’s navigation buttons.

CS200 Controller Display Guide

Status Wheel VFD Graphics Display

Shows information about the Freezer

Fill Button Used to Open the Valve

Stop Button used to Close the Valve

Valve Indicator lights if the Valve is Open

Figure 2.0 CS200 Controller Display

Enter button “selects” a Menu choice or setting

Mutes the Audible Alarm

Directional Buttons Increment/decrement values or allow movement through the menu system

Power Indicator

Power On/Off

Back Button moves out of Menu System or leaves current Setting unchanged

Enter/Exit Menu System

Menu Indicator

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.

High Level Alarm #6

CS SERIES

#5Stop Fill

#3Start Fill

#2Low Level Alarm

Figure 3.0 Thermister LN2 Level

The CS CONTROL SYSTEM uses thermistors to measure the LN2 level within the vessel. A thermistor is a thermal resistor and its resistance changes as the temperature changes. When a thermistor is submerged in LN2, its resistance will be signiﬁcantly greater than its resistance at room temperature. The control can detect this resistance change and determine the level of the LN2 within the freezer. The CS CONTROL SYSTEM is designed to work with an 8 thermistor assembly. There are four thermistors that can be selected that will maintain the LN2 level. These selected thermistors correspond to Low Alarm, Start Fill, Stop Fill and High Alarm. When the LN2 level drops below the Start Fill thermistor, the control opens a solenoid valve allowing LN2 to enter the vessel. This continues until the Stop Fill thermistor is submerged in LN2 at which point the solenoid valve is closed preventing the ﬂow of additional LN2 into the vessel. The Low Alarm, Start Fill, Stop Fill and High Alarm settings can all be changed by the user through the menu system.

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 1.0 8-Thermistor Sensor (G=NORMAL, L=LN2 Flow)

#1 #2 #3 #4 #5 #6 #7 #8 Offset Display Actions

G G G G G G G G 0 0 Low Alarm, Filling

L G G G G G G G 0 1 Low Alarm, Filling

L L G G G G G G 0 2 Filling

L L L G G G G G 0 3 Normal

L L L L G G G G 0 4 Normal

L L L L L G G G 0 5 Stop Fill

L L L L L L G G 0 6 High Alarm

L L L L L L L G 0 7 High Alarm

L L L L L L L L 0 8 High Alarm, Valve

stuck Open Alarm

Alarm Conditions

The CS SERIES Control System monitors a number of conditions and provides an alarm if a problem is detected. The alarms are listed below:

Note: Please see description of the offset. Level displayed may vary depending on the offset setting.

Table 2.0 Alarm Conditions

ALARM PROBLEM DETECTED

Low Level Alarm

High Level Alarm LN2 level is too high. Thermistor #6 on the sensor assembly

Sensor Error Alarm A problem exists with the level sensor. The control detects an

High Temperature Alarm The temperature detected is warmer than the high

Low Temperature Alarm The temperature detected is colder than the low temperature

Thermocouple Calibration Alarm

Thermocouple Open Alarm A problem exists with the temperature sensor

Power Failure No Power.

Low LN2 Supply Alarm A problem may exist with the LN2 supply connected to the

LN2 Use Warning The consumption of LN2 has increased and should be

LN2 level is too low. Thermistor #2 on the sensor assembly is not submerged in LN2.

is submerged in LN2.

open sensor circuit meaning that the sensor is unplugged or the sensor assembly has been damaged. A faulty sensor is denoted as “O” for open.

temperature alarm setting.

alarm setting.

The calibration data is incorrect.

(thermocouple). The control detects an open circuit meaning that the sensor is unplugged or the sensor assembly has been damaged.

freezer. This alarm occurs if the freezer does not ﬁll within the designated amount of time determined by the setting on the control. Possible reasons include an empty supply cylinder, low head pressure in the supply cylinder or a closed shut off valve.

checked.

Table 2.0 Alarm Conditions

ALARM PROBLEM DETECTED

Operating in Battery Mode Alarm Warning

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

Valve Stuck Open Alarm The valve is stuck open.

Unauthorized Access Warning

Temp Alarm Delay This is the amount of time after a warm temperature is

Audible Alarm Retrigger The audible alarm is retriggered if the error condition that

Remote Alarm Relay The control provides a relay to provide an external signal

The power from the power supply has been disrupted and the control system is operating on battery power.

the designated alarm setting.

The lid has been opened and an incorrect or no identiﬁcation has been entered.

detected before the control goes into alarm.

caused it is not corrected. The retrigger time can be adjusted by the user.

that an alarm condition has occurred. The user can set the remote alarm timer that determines the amount of time an error must be active before the relay is triggered.

CS SERIES

All alarms include the following:

• The ﬂashing status wheel ﬂashes to signal an error condition

• An audible tone sounds

• The error detected is displayed and scrolled on the screen

• The remote alarm relay changes state to provide a dry contact output signal

Lid Switch

The LABS Lid Switch (Figure 4.0) is attached to the hinge and determines whether or not the lid is open on the freezer. This also allows the control to determine whether to activate the Auto Defog, Quick Chill or Lid Alarm features.

Lid Switch

Figure 4.0 LABS Lid Switch

Solenoid Valve

These units are designed to work with 12 VDC solenoid valve (see Figure 17.0 LABS Plumbing Assembly on page 37).

Thermocouples

Type T thermocouples monitor the temperature in the freezer. The user may choose to use NONE, 1 or 2 thermocouples with this control at any time. (The unit comes complete with one Thermocouple)

CS SERIES

Remote Alarm Connector

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.

Remote Alarm

If an error condition occurs after a user deﬁned period of time, a remote alarm can be initiated. This is accomplished by connecting a remote device to the remote alarm jack on the rear electrical panel. The 3-pin jack on the back of the unit provides continuity between pin #2 (common) and pin #3 in the normal condition. Continuity between pin #1 and pin #2 is provided in an error condition.

Figure 5.0 Remote Alarm Plug Connection

Operating Parameters

When materials are immersed in liquid nitrogen, they will assume the temperature of the liquid (-196°C/-320°F). When material is stored in the vapor phase over the liquid, the liquid nitrogen is still a very cold refrigerant, but the refrigerator’s interior temperature increases as product is stored higher over the liquid. This temperature differential is not signiﬁcant for many biological storage applications, and is affected by the amount of product stored in the refrigerator, the type size and material of inventory control system, and the liquid level in the unit.

The liquid level in the refrigerator is determined by the position of the of the Thermistor Assembly in the sensor tube. These sensors are set at installation to maintain a speciﬁc liquid level. A ﬁlling cycle is initiated when the level falls below the Start Fill sensor and is completed when the Stop Fill sensor is reached. This ﬁlling cycle repeats when the level fall below the Start Fill sensor. Sensor Probe assignments may be changed on the controller keypad to deﬁne new start and stop levels, and these levels may be set independently to vary the liquid level deference between ﬁlls. Prior to the initial ﬁll of the refrigerator, a determination should be made whether vapor phase or liquid phase storage will be utilized.

All units are supplied with an eight thermistor assembly and a freeze-guard sensor unless otherwise speciﬁed. The LABS factory setting positions will maintain liquid level within a distance of 2 in. (50.8 mm) from the bottom of the operating tray on the LABS 20K, 38K, 40K, 80K units, and 3 in. (76.2 mm) from the bottom of the operating tray on the LABS 94K.

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.

The control provides a High Temperature Alarm for each thermocouple which can be selected by the user. If the temperature exceeds the temperature alarm set point, the status wheel ﬂashes and an audible alarm is triggered.

Liquid Phase Storage

Liquid phase storage is normally utilized when -196 is required to maintain stored product viability and the storage medium is adequate for storage in liquid nitrogen.

In a typical liquid phase storage system, the liquid level sensors are positioned to maintain the liquid level at or below the top level of the inventory control system. During operation, the upper levels of the inventory control system will at times become exposed as the liquid level ﬂuctuates.

CS SERIES

Care must be taken to ensure that the liquid level remains below the bottom of the refrigerator lid. Exposure to liquid nitrogen may result in physical damage to the lid. Additionally, operating the refrigerator with high liquid levels characteristic of liquid phase storage may result in turbulence during ﬁll cycles. Caution must be exercised if the refrigerator lid is opened during a ﬁll, and appropriate safety equipment should always be worn.

The Taylor-Wharton Cryostorage Systems are set at factory for vapor phase storage.

Maintenance

To insure proper operation and maintain excellent performance of the TaylorWharton Cryostorage freezer, an annual maintenance schedule should be followed for the CS SERIES Control System. This would include the following:

Table 3.0 Annual Maintenance Schedule

CS SERIES Control System

Harness Assembly

Battery

Solenoid Valve

Lid Switch

Level Sensor Assembly Thermocouple Assembly Power Supply

Examine for exposure to moisture, wear and tear, connector problems, and cracks or other damages to the faceplate or buttons. In addition, periodic ﬁrmware updates may be important.

Examine for damage to the cable and damage to connectors.

Examine connection cable and connector for damage.Examine vinyl cover for damage. Replace every 2 years.

Examine wires and connector for damage. Replace every 3 years.

Examine lid switch pickup and wires for damage. Replace if necessary.

Examine for damage to wires and connector. Examine for damage to wires and connector. Examine for damage to power supply and power

cords.

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.

Introduction

The CS200 Control System, temperature and LN2 level controller is designed for easy operation and uninterrupted reliable service. This controller will maintain the selected liquid level range of LN2 in your refrigerator as well as provide audible and visual alarms for any non conforming conditions that may occur. An Alarm is any condition outside the activated preset limits on the control, such as an open sensor circuit or temperature alarm. “System Events” are lid openings and closings, solenoid valve openings and closing, and operation of the controller’s relay for remote alarm indication. System Events, Alarms and Temperature “Data” can be downloaded.

The System should require no additional attention to maintain liquid level if an adequate supply source of liquid nitrogen is maintained. If your protocol calls for you to “top-off” the Cryostorage System at the end of a workday or workweek, press the FILL button. The unit will ﬁll to the upper allowable liquid level and stop automatically. You may choose to manually stop the ﬁll by pressing the STOP button at anytime during the ﬁll.

Operation Data

The CS200 CONTROL SYSTEM stores data related to the operation of the TaylorWharton Cryo-Storage freezer. This data includes date, time, LN2 level, temperature, system events and error conditions. This can be useful for audit purposes, operation analysis and preventive maintenance.

Communications

The CONTROL SYSTEM has been designed with advanced communications capabilities. This allows for the transfer of data out of the control where the data can more easily be used. Please check with your supplier for available protocols and compatible products.

Normal Fill Cycle

When the refrigerator is ﬁlled and the controller is operating, the START FILL and LOW ALARM sensors are immersed in liquid nitrogen. Their resistance values

are interpreted by the controller as “in liquid”. At the same time, the STOP FILL and the HIGH ALARM sensors are above the liquid pool, informing the control that these sensors are in vapor. As liquid nitrogen evaporates, the liquid level in the refrigerator drops slowly until the START FILL sensor is above the liquid and sends a different signal to the controller. After a delay sufﬁcient to ensure the signal, the controller interprets this condition as low liquid and opens the ﬁll solenoid, admitting more liquid nitrogen from the supply source.

The refrigerator will ﬁll slowly. The ﬁll continues until the STOP FILL sensor sends the controller a signal that it is now in liquid. The controller will close the liquid supply valve to stop the ﬁll. As liquid evaporates, the display will indicate the liquid is at a normal level as the cycle begins again.

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.

If a wider range is needed between the start ﬁll and stop ﬁll thermistor, please contact your supplier for an alternate sensor assembly.

Features & Settings

Some control settings can be changed through the menu system.

Enter and Exit the menu system by pressing:

Move down through the menu system by pressing:

CS SERIES

Move up through the menu system by pressing:

Select a menu choice or lock in a setting by pressing:

Back out of the menu system by pressing:

When changing settings, single button presses will increment/decrement a value one step at a time. Pressing and holding a button will allow for rapid change of a setting.

The menu system incorporates icons to show the user settings which can be changed and which are locked.

Locked menu choice:

Accessible menu choice:

Also, the menu system includes a scroll bar on the right side of the display. The scroll bar will indicate the current location in the menu system and will indicate if additional menu choices are available with the display of up and down arrows on the scroll bar.

The control will continue to monitor all sensors and conditions while the user accesses the menu system. If no activity is detected for 30 seconds, the control will automatically return to the main operational screen.

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.

Below are the Menu Settings that are available in both the “View Only” and “Change Settings” modes.

•TEMPERATURE

– Thermocouple Select: Allows the user to turn on/off thermocouples for

temperature measurement.

– Calibrate

•Calibrate Thermocouple 1: Allows the user to calibrate the control for use

with thermocouple #1.

•Calibrate Thermocouple 2: Allows the user to calibrate the control for use with thermocouple #2.

•Restore Calibration: Resets the calibration to the data stored during factory calibration.

•Set Ambient: Ambient temperature is set at the factory and should not be changed in the ﬁeld.

– Test Temperature System

•Check Thermocouples: Gives status of temperature sensors.

•Test Temp Alarms: Allows the user to manually test temperature alarms for

the thermocouples.

– Control by Temperature

•Temp Control On/Off: Enables/Disables temperature control.

•Temp Control Range: Allows the user to set the range for temperature control.

– Temperature Alarms

•High Temperature Alarm: Allows the user to set the high temperature alarm for both thermocouples. Settings [00° C to -1900° C]

•Low Temperature Alarm: Allows the user to set the low temperature alarm for both thermocouples. Settings [00° C to -1900° C]

•Time with no Temp alarm: Displays the time since the last high or low temperature alarm.

– Temperature Units: Allows the user to choose the units of measure for

temperature.

•LEVEL

– Thermistor Status: Gives the user the status for the 8 thermistors on the level

sensor assembly and the freezeguard sensor installed at the valve.

– Sensor Positions: Allows the user to assign the thermistors for low level alarm,

start ﬁll, stop ﬁll, high level alarm and the sensor offset.

– Valve Open Duration: Allows the user to set the ﬁxed times for valve open

and valve closed durations.

– 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.

– Date/Time:

•Set Date/Time: Allows the user to set the date and the time. Use the up/

down arrows to change settings. Use the left/right arrows to move between the date and time ﬁelds.

CS SERIES

Figure 6.0 Set Date/Time Menu

•Date Format: Allows the user to change between U.S. and International format.

– Lid Functions

•Lid Switch: Permits the user to enable/disable the lid switch feature.

•Quickchill Timer: Enables the user to set the amount of time that the valve

will stay open after the lid is closed.

•Manual Defog Timer: Allows the user to set the amount of time that the

valve stays open when the Fill/Defog button is pressed and the LN2 level is within normal range.

•Auto Defog Timer: Allows the user to set the amount of time that the valve

stays open. Triggered by the lid switch when the lid is opened and the LN2 level is within normal range.

•User Access On/Off: Allows the user to enable/disable this feature.

– User ID’s: Allows the user to set user identiﬁcation for freezer access.

•Lid Open Valve Off: Allows the user to enable this feature which insures that

solenoid is closed when the lid is opened.

– System Alarms

•Test Alarm: Allows the user to manually check the audible, visual and remote alarm.

•LN2 Supply Alarm Delay: Allows the user to set the time to wait before

an error condition occurs if the freezer does not ﬁll in a timely manner. If this alarm occurs the supply should be checked to insure that the supply valve on turned on, a sufﬁcient supply of LN2 (at least 10 psi) is available in the supply cylinder. Settings [30, 45, 60, 75, 90 min] or [2, 3, 4 hours]

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.

•Audible Re-trigger: Allows the user to set the time before the audible alarm

is re-triggered after an alarm has been acknowledged. Settings [15, 30, 60, 120, 240, 480 min] or [1 day]

– Display

•Display Brightness: Allows the user to adjust brightness for the display. Settings [1 to 15]

•Screen Saver Time: Allows the user to adjust the time before the screen saver starts working. Settings [0 to 60 min]

– Freezer ID: Allows the user the capability to change the freezer identiﬁcation.

•SCHEDULED EVENTS

– Scheduled Fills

•Set Time: Allows the user to set the day and time for the next ﬁlling operation.

•Next Fill: Displays the next scheduled ﬁll.

– LN2 Supply Reminder

•Set Reminder: Allows the user to set the day which the control will display a reminder to check the supply of LN2.

•Clear Reminder: Allows the user to acknowledge that the LN2 supply has been checked.

•Next Reminder: Displays the next scheduled reminder.

Below are the Menu Settings that are available only in the “Change Settings” mode.

•SECURITY

– Settings Password: Allows the user to set a password to allow setting changes.

– Power Password: Allows the user to set the password which secures power

button operation.

•CONTACT SUPPORT

– Distributor: Contact information for the distributor.

– Taylor-Wharton: Contact information for Taylor-Wharton.

•SYSTEM INFORMATION

– Displays the control serial number, the ﬁrmware version and the freezer

identiﬁcation.

Temperature

The temperature in the Cryostorage freezer is measured at the location of the thermocouple. The installation location is different depending on the model of the freezer but usually the thermocouple is positioned level with the top storage box. This may mean that temperatures displayed may be slightly warmer than the temperature experienced by the samples or product stored in the freezer.

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. Since a pool of LN2 is important in the process of temperature control, an adequate level is always maintained by the control systems and the level control always takes precedence over temperature control. Temperature control will not work if the LN2 level is above High Level Alarm.

Enabling the temperature control feature will always increase the use of LN2. The increased consumption will depend on a number of factors including the temperature to be maintained, the range of the controlled temperature, the ambient temperature and the length of supply hose connected to the freezer and the frequency which users open the lid or otherwise introduce heat.

Battery Operation

The CS200 SERIES Control System is designed to operate with or without an optional battery backup system if required. Simply plug the battery into the appropriate connector. The control will recognize that the battery has been connected and will activate the battery backup mode.

CS SERIES

LED Status Wheel

The CS SERIES Control System offers an innovative concept called a status wheel. In normal operation, the LED’s on the status wheel light to show a slow rotation of the wheel. If an error condition occurs, the control will alert the user with an additional visual alarm from the status wheel. The rotation can be accelerated, ﬂashed or even illuminated in the opposite direction.

Condition LED Flash Property

Normal Clockwise pattern, 1 LED per second General Error Clockwise pattern, rapid rotation, ﬂash

Figure 7.0 LED Status Wheel Flash Patterns

Lid Switch

The lid switch consists of a magnet and a pickup installed on the lid. The control can determine when the lid is opened because the magnet moves out of range of the pickup and the circuit becomes open. A number of features are associated with the lid switch such as Auto Defog, Quickchill and the Lid Open Too Long Alarm. If the lid switch is deactivated, these features are also disabled.

CS SERIES

VIEW ONLY

TEMPERATURE

LEVEL

SYSTEM

SCHEDULED EVENTS

THERMOCOUPLE SELECT

TEST TEMPERATURE SYSTEM

CONTROL BY TEMPERATURE

TEMPERATURE ALARMS

TEMPERATURE UNITS

THERMISTOR STATUS

SENSOR POSITIONS VALVE OPEN DURATION SENSOR TYPE

LEVEL SENSOR ALARM

INCH/METRIC DATE/TIME

LID FUNCTIONS

SYSTEM ALARMS

DISPLAY

FREEZER ID

SCHEDULED FILLS

LN2 SUPPLY REMINDER

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

TIME WITH NO TEMP ALARM CELCIUS FAHRENHEIT KELVIN RANKINE

123456789 LID SWITCH 123456789 0 02 03 04 05 SENSOR OFFSET 0 INCH OPEN 0 CLOSE 0

NUMBER OF THERMISTORS FREEZEGUARD

SENSOR ERROR MUTE FREEZEGUARD ERRROR MUTE

INCH METRIC

SET DATE/TIME

DATE FORMAT

LID SWITCH QUICKCHILL TIMER MANUAL DEFOG TIMER AUTO DEFOG TIMER USER ACCESS

LID OPEN VALVE OFF

TEST ALARMS

LN2 SUPPLY ALARM DELAY

REMOTE ALARM DELAY LID OPEN ALARM DELAY VALVE STUCK ALARM

AUDIBLE RE-TRIGGER

DISPLAY BRIGHTNESS SCREEN SAVER TIME FREEZER 1

SET TIME NEXT FILL

SET REMINDER CLEAR REMINDER NEXT REMINDER

T/C 1 OK T/C 2 OFF

OFF

OFF ON

-150C -165C

THERMOCOUPLE 1 THERMOCOUPLE 2

THERMOCOUPLE 1 THERMOCOUPLE 2 TEMP 1: 0

4 8 OFF ON

ON OFF ON OFF

03 -03 -12 15 06 U.S. INTERNATIONAL US MM/DD/YY INT: DD/MM/YY

OFF ON 20 20 20

USER ACCESS ON/OFF

USER IDs USER ID ON/OFF OFF ON

AUDIBLE VISUAL REMOTE 30 45 60 75 90 MIN 2 3 4 HOURS IMMEDIATE 30 60 90 MIN 2 3 4 5 HOURS 10 MIN OFF ON 15 30 60 120 240 480 MIN 1 DAY

0 20

SET DAY SET TIME DAILY 17:00 03-12-12 14:37

OFF SUN MON TUES WED THRS FRI SAT YES 3/3/2012

-100

-180

OFF ON USER 1 USER 2 USER 3 OFF ON

OFF ON OFF ON OFF ON

Figure 8.1 Menu System - View Only

CS SERIES

CHANGE SETTINGS

CONTACT SUPPORT

SYSTEM INFORMATION

TEMPERATURE

LEVEL

SYSTEM

SCHEDULED EVENTS

SECURITY

DISTRIBUTOR PAGER DIGITAL TAYLOR-WHARTON SERIAL # 12345 VERSION 1.00 FREEZER ID FRZ01

THERMOCOUPLE SELECT

CALIBRATE

TEST TEMPERATURE SYSTEM

CONTROL BY TEMPERATURE

TEMPERATURE ALARMS

TEMPERATURE UNITS

THERMISTOR STATUS

SENSOR POSITIONS VALVE OPEN DURATION SENSOR TYPE

LEVEL SENSOR ALARM

INCH/METRIC DATE/TIME

LID FUNCTIONS

SYSTEM ALARMS

DISPLAY

FREEZER ID

SCHEDULED FILLS

LN2 SUPPLY REMINDER

SETTINGS PASSWORD POWER PASSWORD

CONTACT INFO CONTACT INFO CONTACT INFO

T/C 1 ON/OFF T/C ON/OFF

CALIBRATE THERMOCOUPLE 1

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

TIME WITH NO TEMP ALARM CELCIUS FAHRENHEIT KELVIN RANKINE

123456789 LID SWITCH 123456789 0 02 03 04 05 SENSOR OFFSET 0 INCH OPEN 0 CLOSE 0

NUMBER OF THERMISTORS FREEZEGUARD

SENSOR ERROR MUTE FREEZEGUARD ERROR MUTE

INCH METRIC

SET DATE/TIME

DATE FORMAT

LID SWITCH QUICKCHILL TIMER MANUAL DEFOG TIMER AUTO DEFOG TIMER USER ACCESS

LID OPEN VALVUE OFF

TEST ALARMS

LN2 SUPPLY ALARM DELAY

REMOTE ALARM DELAY LID OPEN ALARM DELAY VALVE STUCK ALARM

AUDIBLE RE-TRIGGER

DISPLAY BRIGHTNESS SCREEN SAVER TIME FREEZER ID #1

SET TIME NEXT FILL

SET REMINDER CLEAR REMINDER NEXT REMINDER

0 0 0 0 0 0 0 0

PUT T/C 1 IN ICE WATER (0C) PUT T/C 1 IN LN2 (-196C) DONE PUT T/C 2 IN ICE WATER (0C) PUT T/C 2 IN LN2 (-196C) DONE ABORT LOAD

35.3

T/C 1 OK T/C 2 OFF

OFF

OFF ON

-150C -155C

THERMOCOUPLE 1 THERMOCOUPLE 2

THERMOCOUPLE 1 THERMOCOUPLE 2 TEMP1: 0

4 0 OFF ON

ON OFF ON OFF

00 -00 -12 15:00 US INTERNATIONAL US: MM/DD/YY INTL: DD/MM/YY

OFF ON 30 30 33

USER ACCESS ON/OFF

USER IDs USER ID ON/OFF OFF ON

AUDIBLE VISUAL REMOTE 30 45 60 75 90 MIN 2 3 4 HOURS IMMEDIATE 30 60 90 MIN 2 3 4 5 HOURS 10 MIN OFF ON 15 30 60 120 240 480 MIN 1 DAY

0 30

SET DAY SET TIME DAILY 17:00 03-13-12 14:37

OFF SUN MON TUES WED THURS FRI SA YES 10-13-12T

-100

-130

OFF ON USER 1 USER 2 USER 3 OFF ON

OFF ON OFF ON OFF ON

Figure 8.2 Menu System - Change Settings

CS SERIES

Factory Defaults

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 Time Lid Switch On Quickchill Timer 30 seconds Manual Defog Timer 30 seconds Auto Defog Timer 30 seconds User Access Off Lid Open-Valve Off Off LN2 Supply Alarm Delay 30 minutes Remote Alarm Delay 30 minutes Lid Open Alarm Delay 10 minutes Valve Stuck Alarm On Audible Retrigger 30 minutes Display Brightness 10 Screen Saver Time 30 minutes Freezer ID Not set Scheduled Fills Off LN2 Supply Reminder Off Settings Password Off Power Password Off

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

CS SERIES

Figure 9.0 Interconnection Block Diagram

CS SERIES

4 wires position 1 P1P1

4 wires position 2 P1P2

10 wires position 1 P2P1

10 wires position 2 P2P2

Blue P1P1 Valve Red P1P1

Yellow + White/ Yellow P2P1 Remote A larm

Orange + Whit e/Orange P2P1 Remote Alarm

Brown + White/B rown P2P 1 Remote Alarm

Yellow/Green P1P1 Power

White P1P1 Power

Harness Control End

White/Blac k P2P1 Red + Black P2P1 RS-232

White/Red P2P1

Black P 2P2 Brown P2P2

Red P2P2 Sens or

Orange P2P2

Yellow P2P2

P2P2

white Power Connector

Yellow/Green

Valve Connector Red Blue

White/Bla

ck P2P1 DB-9 Connector

Connector Box End White/Red P2P1

Red + Black P2P1

White/Yellow + Yellow P2P1

White/Orange + Orange P2P1 Remote Alarm Connector

White/Brown + B rown P2P 1

Black P2P2 Brown P 2P2

Red P2P2 Sensor Assembly

Orange P2P2

Yellow P2P2

Pod 1

Pod 2

2 1

5 4 3 2 1

3 2 1

6 5 4 3 2 1

P1P1

2 3 5

1 2 3

1 2 3 4 5

Wiring Diagram

Figure 10.0 CS Series Control System Harness Wiring Diagram

Installation & Setup

Main Harness Connector

Connection to Main Control

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

CS SERIES

• LN

• Plumbing

Connect the wiring harness assembly to the main control. The connector is keyed and can only be plugged in one way.

Display Connector T/C #1 T/C #2

Figure 11.0 Main Control Back Panel

Connect the thermocouple plug of the harness assembly into the control at the thermocouple plug labeled T/C #1. One of the blades on the plug is slightly wider insuring that it is plugged in correctly. The copper blade should plug into copper colored plug. Finally, connect the display cable into the main control and the display.

Figure 12.0 Connection to Main Control

CS SERIES

Connector to Main Control Connector for Level Sensor

Valve and Freeze Guard

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.

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. These are located on the circuit board inside the box and are labeled. The solenoid connector is a 6 pin locking connector and the lid switch is a 2 pin locking connector. Each is keyed so they can only be plugged in one way.

Cryowire Port Power

Battery

Lid Switch Connector

Cryowire Port

Harness Connector

to Main Control

Remote Alarm

Figure 14.0 Harness Assembly & Back Panel

Sensor Connector

Connect the Remote Alarm plug into the panel at the end of the wiring harness

Remote Alarm Connector Cryowire Dual Communication Ports

Power Connector Battery ConnectorCryowire Communication Port

assembly. This is keyed so that it can only be plugged in one way.

Figure 15.0

Finally, connect the barrel plug of the power supply and the battery into the appropriate receptacles in the connector box.

CS SERIES

Figure 16.0

Diagnostic Menu

Need diagnostic menu

External Connector Ratings

Designated Use Max rated voltage/current ratings Connector type

Power 36 VDC 2.5mm barrel connector

CAN N/A Modular shielded jack

Remote Alarm 300 volts 5mm terminal block

Solenoid Valve 600 volts 4.2mm header

Thermocouple N/A 2 pin thermocouple

Level Sensor 5 amps / contact Sealed circular connector

LED Status Wheel Flash Patterns

Normal Clockwise pattern, 1 LED per second

General Error Clockwise pattern, rapid rotation, ﬂash

Condition LED Flash Pattery

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. Both thermocouples can be activated/ deactivated through the menu system.

Temperature Calibration

The CS SERIES Control System uses a type T thermocouple to measure temperature within the CryoStorage freezer. The temperature curve for a thermocouple is nonlinear so it is important that the CS SERIES Control System have a good calibration to provide accurate temperature readings. The temperature is traceable to the National Institute of Standards and Technology (NIST) ITS-90 Thermocouple Database.

There are three important reference points needed for calibration:

Ambient Temperature:

Ice Water: 0°C

Liquid Nitrogen (LN2): -196°C

The ambient temperature is the temperature measured inside the control box and is used to provide temperature compensation adjustment. This is calibrated at the factory and should not be adjusted in the ﬁeld.

Ice water and LN2 provide the reference points on the temperature curve. If these two points are calibrated correctly then all other points (temperatures) on the curve are correct.

The accuracy of a thermocouple is +/- 1°C or +/- 1.5% of the reading, whichever is greater.

To check a calibration, submerge the thermocouple in ice water slurry and then LN2. If readings are within accuracy speciﬁcations noted above, then the temperature circuit on the control is properly calibrated. If not, follow the steps below to calibrate the temperature.

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. At this point, press to lock in the value

The display will read Dip the thermocouple into LN2. Submerge the thermocouple into LN2. The bar graph will ﬂuctuate.

When a good stable reading in obtained, the bar graph will decrease to 1 or 2 bars. At this point, press to lock in the value.

If the calibration values fall within the expected range, DONE! Will be displayed on the screen.

CS SERIES

Test Temperature System

The temperature circuitry can be checked at any time through the menu system. This check will tell if the thermocouples are working or if they are “open” (broken or unplugged). If a thermocouple is not connected to the control it will check as “open.” If a thermocouple is “Disabled” through the menu system, it will not show up on the check.

Test Level Sensors

The sensor assembly can be tested through the menu system. The sensor diagnostics indicates the sensor number and the status (whether in liquid or gas). If the control is set for an eight-thermistor it will indicate 9 sensors in the diagnostics. If it is set for a four-sensor assembly, it will indicate 4 sensors. The status is indicated with either an “O” for open, a “G” for gas or an “L” for liquid. This is an easy means to tell if sensors are in or out of liquid or if a new sensor assembly is needed (open or defective sensors).

The sensor type can be set through the menu system. The sensor type selection should match the sensor type that is being used in the system. This is a 4-sensor, a 8-sensor (Freeze-Guard) or an 8-sensor array. If the sensor assembly is unplugged and the main control is still on, the display will indicate that a sensor error has occurred. In addition the level indicated would be 8” on an 8-sensor assembly, or “High Alarm” on a 4-sensor assembly. This occurs because the control cannot differentiate between a very high resistance (when a thermistor is in LN2) and an inﬁnite resistance (when an open circuit appears in the level sensing circuitry).

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. In addition, the error condition is displayed on the top line until the error condition is corrected. When an error does occur, the audible alarm may be muted by pressing the designated button. The audible alarm will then be silent until activated by a new error condition. A red light will continue to ﬂash until all errors are corrected. The remote alarm will be activated if the power is interrupted.

The High Temperature Alarm for Thermocouple #1 can be set through the menu system. This alarm is activated if the temperature rises above the designated temperature. The alarm temperature can range from 0ºC to -190ºC. It can also be disabled.

High Temperature Alarm for Thermocouple #2 can be set through the menu system. This alarm is activated if the temperature rises above the designated temperature. The alarm temperature can range from 0ºC to -190ºC and it can also be disabled.

System Alarms

A Low LN2 Supply Alarm can be set through the menu system. This alarm is activated if the solenoid valve is not closed within a designated time period after a ﬁll starts. The solenoid valve can be closed either automatically (the LN2 level reaches the STOP FILL sensor) or manually (the stop ﬁll button is pressed). To stop the timer which activates this alarm. The possible choices for this alarm are None, 15, 30, 45, 60 minutes, 2 or 3 hours. This alarm does not correct itself until the ﬁll is stopped (the solenoid closes).

The Sensor Error Alarm can be set through the menu system. This alarm is activated if the control detects a sensor error such as an open sensor. The possible choices are ENABLE or DISABLE. An open sensor can be conﬁrmed through the TEST LEVEL

SENSORS option in the menu system.

A Remote Alarm Timer can be set through the menu system. This is the amount of

time allowed to pass before the remote alarm relay is triggered if an error condition is not corrected. The possible choices are None, Immediate, 30 minutes, 60 minutes or 2 hours.

Lid Open Too Long Alarm can be set through the menu system. This is the amount of time the lid can be open before it triggers an alarm condition. The possible choices are None, 1, 2, 5 or 10 minutes.

Thermocouple Alarm can be set through the menu system. This alarm is activated if either thermocouple experiences an open circuit. Your choices are ENABLE or DISABLE.

Test Alarms

Audible, visual and remote alarms can be tested at any time by the user through the menu system. Follow the instructions on the display to hear the audible “chirping” indicator of an alarm or to see the red status wheel ﬂash or to trigger an immediate relay closure of the remote alarm.

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. Error log – Error logs are outside the activated preset limits detected by the system.

3. Temperature #1 log and Temperature #2 log (for use with optional thermocouple #2) – The two temperature logs are simply records of the temperatures recorded by the two thermocouples in the system.

The system and the error log each hold 4096 events while the combined temperature logs hold an additional 32,768 temperature events. All the logs are kept in non-volatile memory, meaning that the information is saved regardless of whether the control has power.

When an event (system, error or temperature) occurs, the control does two things with the data:

CS SERIES

1. It enters the beginning or the conclusion of an event in the internal memory of the controller.

2. It sends the event data out the serial port of the freezer.

The control consolidates the events in the internal log (combining “start event” / ”conclude event” information to provide one event with duration), however, when the data is sent out the serial port no consolidation of data occurs.

As an example, a ﬁll would provide one log entry in the internal log of the control, indicated as follows: Fill occurred on 01/07/2012 @ 8:07 for 24 minutes. The same data coming out of the serial port would cause two entries in a computer or printer and would be indicated as follows:

Fill Started on 01/07/12 @ 8:07 … (elapsed time) Fill occurred on 01/07/12 @ 8:07 for 24 minutes

Menu Access causes the control to make some decisions on logging an event and they are handled in the following manner: Temperature is immediately logged (if it is enabled) and then a fresh time period is started when the Menu system is exited. System and error logs are placed in a suspended state until the control exits the menu system and timing is started again. Duration of system and error logs then are total time of the event less any time that the user was in the menu system.

When logs are dumped to the serial port, the oldest events are sent ﬁrst. The control operates on the FIFO (First In First Out) method. If the maximum number of entries is reached, the oldest are lost to make way for the newest entries.

Dump Logs

DUMP SYSTEM LOGS is accessible through the menu system of the control. This option sends data from the system logs out the serial port of the freezer. When this option is chosen, the display reports how many system logs are stored. While the data is being sent to the serial port, it can be paused or completely cancelled through the menu system.

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. This option sends data from the temperature logs to the serial port of the freezer. When this option is chosen, the display reports how many temperature 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.

Error Logs

SENS. ERR. LOGGING is accessible through the menu system of the control. This menu choice turns on/off the logging of all sensor errors. The choices are ENABLE or DISABLE. Records data in the error log.

LOW LN2 SUPPLY LOGGING is accessible through the menu system of the control. This menu choice turns on/off the logging of the low LN2 supply error. The choices are ENABLE or DISABLE. Records data in the error log.

REMOTE ALARM LOGGING is accessible through the menu system of the control. The menu choice turns on/off the logging of the remote alarm activation. The choices are ENABLE OR DISABLE. Records data in the error log.

OPEN THERMOCOUPLE LOGGING is accessible through the menu system of the control. This menu choice turns on/off the logging of the thermocouple open alarm. The choices are ENABLE and DISABLE. Records data in the error log.

HIGH TEMP #1 LOG is accessible through the menu system of the control. This menu choice turns on/off the logging of the high temperature alarm for Thermocouple #1. The choices are ENABLE and DISABLE. Records data in the error log.

HIGH TEMP #2 LOG is accessible through the menu system of the control. This menu choice turns on/off the logging of the high temperature alarm for Thermocouple #2. The choices are ENABLE and DISABLE. Records data in the error log.

System Logs

FILL LOGGING is accessible through the menu system of the control. This menu choice turns on/off the logging of tank ﬁlling operations. The choices are ENABLE or DISABLE. Records data in the system log.

LID ACTION LOGGING is accessible through the menu system of the control. This menu choice turns on/off the logging of lid openings and closings. The choices are ENABLE or DISABLE. Records data in the system log.

USER ACCESS LOGGING is accessible through the menu system of the control. This menu choice turns on/off the logging of user access codes, which are requested when the lid is opened. Records data in the system log.

Temperature Logs

Temperature Logging Rates for thermocouple #1 (T/C #1 LOGGING) and thermocouple #2 (T/C #2 LOGGING) are accessible through the menu system of the control. This menu choice adjusts the rate at which temperatures are logged for the two thermocouples. The possible choices are Disabled, 15, 30 minutes, 1, 2, 4, 6, 12 or 24 hours. Records data in the temperature logs.

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%.

Making Adjustments to the CS SERIES Control System Sensor Assembly

Table 5.0: CS SERIES Control System Sensor Assembly Factory Settings

CS SERIES

CRYOSTORAGE

SYSTEM

LABS

20K, 38K, 40K, 80K

LABS 94K 5 in. (127mm) 6 in. (152mm) 9 in. (228mm)

LOW LEVEL

ALARM

2 in. (50mm) 3 in. (76mm) 5 in. (127mm)

START

FILL

STOP

FILL

(at carousel)

HIGH LEVEL

ALARM

6 in. (152mm)

10 in. (254mm)

The sensor assembly is preset at the factory for vapor phase storage. If adjustments need to be made, the following procedure will simplify the process.

The CS SERIES Control System control installed on the Taylor-Wharton Cryostorage units operates with specially designed software to match the design characteristics of your refrigerator. Refer to the chart below to see the versions and their difference.

To make adjustments to a sensor assembly in a refrigerator ﬁlled with LN2, the following procedure can be used:

• Measure the LN2 liquid level in the refrigerator.

• Take this measured level and subtract the offset to determine how many sensors

should be in liquid. a. Remove sensors. b. Fill to correct level and turn off Liquid supply.

c. Eg. Level is to be 15 in. (381 mm) and sensor number 6 is currently and will

remain the Stop Fill. 15 in. (381 mm) – 6 in. (152.4 mm) = 9 in. (238.6 mm) offset. Set Offset to 9 in (228mm).

• Go to “Test Level Sensor” through the CS SERIES Control System menu. “L” means a sensor is in liquid while “G” means a sensor is in gas.

• Move the sensor up or down so that the appropriate numbers of sensors are in liquid (read “L”).

• Return to the CS SERIES Control System main screen and the level indicated should match the physically measured reading.

The Sensor Offset, the START FILL and the STOP FILL can all be set through the CS SERIES Control System menu system.

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. Disconnect the plumbing from the inlet and outlet side of the solenoid valve.

To install a new solenoid valve, attach the connecting plumbing to the inlet and outlet connections of the valve using Teﬂon tape on tapered threads (3 wraps). Attach the compression ﬁtting to the ﬁll tube ﬁrst and then connect the compression ﬁtting to the elbow that is connected to the outlet side of the solenoid valve. Position the solenoid valve onto the solenoid valve bracket and tighten the two (2) mounting screws. Attach the solenoid valve lead connection to the controller board.

Controller Electrical Tests

If a controller is removed from the refrigerator for service, the liquid refrigerant level must be maintained manually to protect stored product. The ﬁll solenoid valve will be inoperative with the controller removed. A ﬂexible ﬁll line terminated with a phase separator may be used periodically through the open refrigerator lid to conduct manual ﬁll operations until automatic operation is restored.

Sensor Probes. The sensor probes used to detect liquid level by Taylor-Wharton controllers are temperature-sensitive resistors called “thermistors.” Their resistance to electrical current ﬂow changes greatly with their temperature.

• At Room Temperature ....2 ohms to 10 ohms

• In Cold Nitrogen Gas ....8 K ohms to 18 K ohms

• In Liquid Nitrogen .........18 K ohms to 35 K ohms

Controller Logic. The liquid level controllers read the values of the sensors as indications of liquid level. The function of a sensor, and its value, are interpreted by the controller to set normal operating, ﬁll, ﬁll termination, and alarm conditions. In addition, the refrigerator temperature is monitored and an alarm is triggered if the temperature raises above a pre-determined point.

• From cold gas to liquid ..Resistance greater than 22K ohms.

• From liquid to cold gas ..Resistance less than 16K ohms.

• Defective Sensor ............ Resistance greater than 50K ohms, or less that 5 ohms.

Plumbing Assembly

Freeze-Guard Sensor

CS SERIES

Solenoid Valve

Male Branch Tee

90 deg Elbow

Male Branch Tee

Reducer

Strainer

Female Connector

Relief Valve

Figure 17.0 LABS Plumbing Assembly

Relief Valve Tube

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. Determine if the problem is occurring in any of the following subsystems: Supply Vessel, Transfer Line, Power Source, Temperature, Level Sensing, Security, Lid Switch, Solenoid Valve, Control Display, Alarm System, Communications. After determining which sub-system is having the problem, isolate the problem further by performing sub-system tests. Once the problem is isolated and deﬁned, it will be easier to solve.

Controller Will Not Turn ON

1. Press POWER button. If display is blank and dark go to next step.

2. Check all connections. Start with the connections to the controller. Pay special attention to jacks labeled “POWER”. Power cord must be plugged into an outlet providing AC voltage between 100 and 130 to deliver AC voltage 21 to 30 to the back of the freezer. Or the 100-240 50/60Hz European standard.

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. If the sensor tube is blocked or iced at the top, the liquid level in the sensor tube may not rise and fall at the same rate as the liquid level in the freezing chamber. Make sure the sensor tube is not obstructed.

3. The pool of LN2 can become turbulent during a ﬁll. Bubbling and splashing can be ampliﬁed by the rack arrangement. The deeper the pool, the more turbulent the surface of the pool will be during a ﬁll. The turbulence of the pool surface can splash on the X-High thermistor and cause a false high alarm. Rearrange the racks to reduce the turbulence and splashing.

4. Conﬁrm that sensor assembly is responding to changing liquid level with a diptest.

• Close liquid supply valve at source.

• Mark the sensor assembly at top of tube to assure back to the original

position.

• Remove sensor assembly from sensor tube. DO NOT FORCE. Fill solenoid

valve should open and LOW LEVEL alarm should be activated.

• Select MENU, LEVEL SENSING, TEST LEVEL SENSORS. An “L” or “G” will

indicate individual thermistor status (L = Liquid and G = Gas).

• Dip each thermistor in succession into LN2 Observe the controller display

noting that each thermistor changes from “G” to “L” as each is submerged. Response time may vary.

• Return to the main menu and submerge the START FILL THERMISTOR IN

LIQUID. Note that the low level alarm ceases, ﬁll solenoid valve is still open. Control is ﬂashing FILLING.

• Manually press STOP button and note that the ﬁll solenoid valve closes.

• Press FILL button to re-open ﬁll solenoid valve.

• Continue to lower the sensor until the STOP FILL thermistor is immersed in

the LN2 . The ﬁll should stop after a conﬁrming (CHECK) SPLASH GUARD period.

• Simulate an over ﬁll by lowering the HIGH LEVEL Alarm thermistor into the

LN2. HIGH LEVEL alarm should sound with 10 seconds.

• Re-install sensor assembly and thermocouple into sensor tube as before.

Open supply valve on LN2 supply.

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. Conﬁrm that no other transfer hose or apparatus is attached to the supply cylinder. Either could compromise adequate tank pressure required to complete a standard ﬁll in 30 minutes.

• Check the distance that the LN2 must travel to reach the freezer. Observe

the time it takes for Liquid LN2 to reach the Freezer through the usual piping conditions (Pipe-Temperature at start ﬁll). Liquid should be entering the chamber within 4 minutes under normal (usual) line temperature conditions.

• Distances over 6 feet (1.83 m) without a gas by-pass are discouraged due to

excessive boil off.

• A “Keep-Cold” or a “Keep-Full” device are almost always needed on an LN2

pipeline, whether the pipe is Vacuum Jacketed or Foam Insulated.

CS SERIES

3. Conﬁrm that the solenoid valve is open when a ﬁll is called for.

• If no ﬂow is detected, the solenoid valve is not getting the signal to open, or

it is opening and there is a blockage in the line. Check the connections on the leads near the solenoid itself, as well as the connection at the controller.

• Conﬁrm that the wires have not been pinched, creating a short circuit.

4. If a longer ﬁll time is desired, change the setting by selecting: MENU, SYSTEM ALARMS, LN2 SUPPLY ALARM.

Indicates Open Sensor

1. Normally, this message is associated with a loose plug or connector. Check all connections.

2. To determine this select: MENU, LEVEL SENSING, TEST LEVEL SENSORS. An “L”, “G”, or “O” (open) will indicate individual thermistor status.

3. Thermocouple is not repairable. Replace from stock.

Temperature Reading 10 to 20 Degrees Warm

• Prepare an ice water slurry with crushed ice and tap water. Dip or pour LN2 into a styrofoam cup to prepare an LN2 bath. Calibrate the controller. Select MENU, TEMPERATURE, CALIBRATE TEMPERATURE. Follow the on-screen instructions. Hold the thermocouple in each bath until the control completes its self-calibration.

• Make sure the thermocouple is clean and dry before and after each bath.

• Reposition the thermocouple at the elevation the customer wants to monitor or

control.

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., continues to ﬁll after the valve is de-energized), it will attempt to DeIce the valve by causing a rapid cycling of the valve in an attempt to dislodge the blockage.

• To activate or de-activate this feature: Select MENU, USER OPTIONS,

CONTROL OPTIONS, FREEZE-GUARD OPTIONS, VALVE DE-ICING.

Repeated cycling of the Solenoid Valve, caused by excessive turbulence, power/low battery, bad connection, or circuit board corrosion, could be attributable to moisture invasion on the controller circuit board.

To troubleshoot proper operation of the ﬁll valve:

1. Check gasket seals.

2. Access control board and allow time to fully dry prior to reinstallation.

3. Conﬁrm the pressure of the supply vessel is less than 22 psi (1.4 bar/138kPa).

4. Watch the interface panel on the controller to verify if the Start and Stop Fill cycles are repeating. You should see and hear each cycle.

Fill Solenoid Makes Excessive Humming Noise

During normal operation, the ﬁll solenoid valve will make a soft humming noise. If the noise is excessively loud, turn the ﬁll valve on and off using the control panel. If a soft humming noise is heard, the valve should continue to operate reliably. If the humming noise is excessive, replace solenoid valve. You should change the solenoid valve every 3 years.

Display = “Check”

The word CHECK will ﬂash during periods of Splash-Guard protection.

Lid Open Alarm

A lid switch is located near the front hinge. The proximity switch should actuate when the hinge is opened and again when it is shut.

• Conﬁrm that there is a ½ in. (12 mm) gap between the sensors.”

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. Refer to the Service and Maintenance section of this manual to get the contact information you will need to return any equipment.

Liquid Level Readout is Incorrect

Liquid level is determined by a 8-thermistor assembly inside a protective sensor tube. The user may adjust the desired START FILL elevations and STOP FILL elevations for the pool of nitrogen with the conﬁnes of the 5 inches (127mm). START FILL cannot be assigned to thermistor number 1. STOP FILL cannot be assigned to thermistor number 8. The factory installs this eight thermistor assembly all the way to the ﬂoor of the sensor tube, which positions thermistor number 1 at 1 in. (25.4 mm) above the ﬂoor (i.e.; the ﬁrst thermistor is offset from the ﬂoor zero inches).

CS SERIES

If you would like to stop the ﬁll at a depth greater than seven inches from the ﬂoor, the sensor assembly must physically be raised inside the sensor tube. The distance that it has been raised becomes the new OFFSET and the controller must be notiﬁed of this offset from the ﬂoor. The factory settings are START FILL at 3 inches and STOP FILL at 5 inches, with an OFFSET of zero.

Power Failure Alarm

If power is interrupted, a note of the time and duration will be recorded in the log. If the unit is not connected to a battery back-up or an external alarm, then no local alarm will be sounded unless a high temperature is detected after power resumes. A Remote Alarm will be triggered anytime the power is interrupted.

REPLACEMENT PARTS

A complete list of Replacement Parts and Accessories for the LABS Cryostorage Systems is available from the following Taylor Wharton Customer Care Centers:

Europe Americas Asia/Australia +421 (0)55-727-7157 +251-443-8680 +61 (0)2 6040-2533

In U.S. and Canada:

800-898-2657

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.

End User Company Name _________________________________ LOG NO ______________________________

Service Contract/NameCompany ___________________________________________________________________

Service Contract Phone Number/Fax ________________________________________________________________

Cryostorage System Model/Serial Number ___________________________________________________________

Controller Serial Number__________________________________________________________________________

Control Version Number __________________________________________________________________________

In-service Date ___________________________________________________________________________________

Describe Conditions – Actual Describe Conditions – Controller Reading

Liquid Level – via Dipstick ______________________ Liquid Level – Per Controller _______________________

Level Sensor Type _____FG _____ 8T _____4T _____ Liquid Level Setting _____ HIGH _____LOW

Lid _____ Open _____ Closed Lid _____Open _____ Closed

Filling _____ Yes _____ No Filling ______Yes______No

Temperature _________________________________ Temperature _____________________________________

LN2 Supply ______________ ltr______________ psi LN2 Supply Alarm ___ On ______ Off

Note: Ice Build-up _____ a little _____a lot Remote Alarm ______ On ______ Off

Note: Gasket condition _____ Seals _____ Leaks Audible Alarm ______ On ______ Off

Display Lights _____ On _____ Off

Taylor-Wharton Technical Services - Phone: In USA & Canada 800-898-2657

Fax:+251-443-2209USA•+421(0)55-727-7157Slovakia•+49(0)4841-985130Germany

Service History Log (note date and log number on each service entry)

Date: ___________________________________________________________________________________________

NOTE: All Taylor-Wharton Cryostorage Systems must be cleaned and sterilized prior to return to Taylor-Wharton for repair or maintenanceand

must be accompanied by a written statement to this effect. Any Cryostorage Systems or CS SERIES Control System received without this statement will be returned to the sender, freight collect. Contact Customer Service by telephone: 800-898-2657 In USA & Canada or +421 (0)55-727-7124 Kosice or +49 (0)4841-985139 Husum. Or email: salesandservice@taylorwharton.com.

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

CS SERIES

Table 6.0

Guidance and Manufacturer’s Declaration – Electromagnetic Emissions

The CS CONTROL SYSTEM is intended for use in the electromagnetic environment speciﬁed below. The customer or the end user of the CE1000 should assure that it is used in such an environment.

Emissions Test Compliance Electromagnetic Environment - Guidance

RF Emissions - CISPR 11 (Radiated & Conducted)

Harmonic Emissions EN/IEC 61000-3-2

Voltage ﬂuctuations/ Flicker Emissions

EN/IEC 61000-3-3

Group 1 The CS CONTROL SYSTEM uses RF energy

only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.

Class B The CS CONTROL SYSTEM is suitable for

use in all establishments, including domestic

Class A

Complies

establishments and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

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.

Immunity Test EN/IEC 60601

Test Level

Electromagnetic

± 6kV contact

Discharge (ESD)

± 8kV air

EN/IEC 61000-4-2

Electrical fast transient/burst

± 2kV for power supply lines

EN/IEC 61000-4-4

± 1kV for input/output lines

Surge

± 1kV differential

EN/IEC 61000-4-5

mode (lineline)

Compliance Level

± 6kV contact

± 8kV air

± 2kV for power supply lines

± 1kV for input/output lines

± 1kV differential mode (lineline)

Intneded Electromagnetic Environment

Floors should be wood, concrete or ceramic tile. If ﬂoors are covered with synthetic material, the relative humidity should be at least 30%.

Mains power quality should be that of a typical commercial or hospital environment.

Voltage dips, short interruptions and voltage variations on power supply input lines

EN/IEC 61000-4-11

± 2kV common mode (line-earth)

<5% UT (>95% dip in UT) for 0.5 cycle

40% UT (60% dip in UT) for 5 cycles

± 2kV common mode (line-earth)

<5% UT (>95% dip in UT) for 0.5 cycle

40% UT (60% dip in UT) for 5 cycles

Mains power quality should be that of a typical commercial or hospital environment. If the user of the CS CONTROL SYSTEM requires continued operation during power mains interruptions, it is recommended that the CS CONTROL SYSTEM be powered from an uninterruptible power

Power frequency (50/60Hz) magnetic ﬁeld

70% UT (30% dip in UT) for 25 cycles

<5% UT (>95% dip in UT) for 5 seconds

3A/m 3A/m Power frequency magnetic ﬁelds

70% UT (30% dip in UT) for 25 cycles

<5% UT (>95% dip in UT) for 5 seconds

supply or a battery.

should be at levels characteristic of a typical location in a typical commercial or hospital

EN/IEC 61000-4-8

environment.

Note UT is the a.c. mains voltage prior to application of the test level.

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.

Immunity Test EN/IEC 60601

Test Level

3Vrms Conducted RF EN/IEC 61000-4-6

Radiated RF EN/IEC 61000-4-3

150kHz to

80MHz

3V/m

80MHz to

2.5GHz

Compliance

Level

3Vrms 150kHz to 80MHz

3V/m 80MHz to

2.5GHz

Intended Electromagnetic

Environment

Portable and mobile RF communications equipment should be used no closer to any part of the CS CONTROL SYSTEM, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

Recommended separation distance

d = 1.2√P d = 1.2√P 80MHz to 800 MHz d = 2.3√P 800MHz to 2.5GHz

where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended minimum separation distance in meters (m).

Field strengths from ﬁxed RF transmitters, as determined by an electromagnetic site surveya, should be less than the compliance level in each frequency range.

Interference may occur in the vicinity of equipment marked with the following symbol:

CS SERIES

Graphic needed.

NOTE 1: At 80MHz and 800MHz, the higher frequency range applies.

NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reﬂection from objects, structures and people.

Field strengths from ﬁxed transmitters, such as base stations for radio (cellular/cordless)

telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to ﬁxed RF transmitters, an electromagnetic site survey should be considered. If the measured ﬁeld strength in the location in which the CS CONTROL SYSTEM is used exceeds the applicable RF compliance level above, the CS CONTROL SYSTEM should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the CS CONTROL SYSTEM.

Over the frequency range 150kHz to 80MHz, ﬁeld strengths should be less than 3V/m.

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. The customer or the user of the CS CONTROL SYSTEM can help prevent electromagnetic interference by maintaining a minimum distance between the portable and mobile RF communications equipment (transmitters) and the CS CONTROL SYSTEM as recommended below, according to the maximum output power of the communications equipment.

Rated maximum output rding to frequency of transmitter in meters (m) power of transmitter in watts (W)

0.01 .12 .12 .23

0.1 .38 .38 .73

1.0 1.2 1.2 2.3

10 3.8 3.8 7.3

100 12 12 23

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.

NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reﬂection from structures, objects and people.

Separation distance acco Rated maximum output rding to

frequency of transmitter in meters (m)

150kHz to 80MHz

d = 1.2√P

80MHz to 800MHz

d = 1.2√P

800MHz to 2.5GHz

d = 2.3√P

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 CONTROL SYSTEM

is in conformity with the Essential requirements of the following EC Directives when subject to correct installation, maintenance and use conforming to its(their)intended purpose, to the applicable regulations and standards, to our operation and maintenance manual.

93/42/EEC Medical Device Directive 2004/108/EC EMC Directive 2006/95/EC Low Voltage Directive

CS SERIES

and that the Standards and/or technical speciﬁcations referenced below have been applied:

• EN 60601-1:2006 Edition 3 Medical Electrical Equipment – General Requirements for basic safety and essential performance.

• IEC 60601-1-2: 2007 Edition 3 Medical Electrical Equipment – General Requirements for basic safety and essential performance – Collateral standard : Electromagnetic Compatibility

• IEC/CISPR 11:2009+A1:2010 Radiated & Conducted Emissions.

• IEC61000-3-2:2005+A1:2008+A2:2009. Harmonics

• IEC 61000-3-3:2008. Flicker

Year of CE Marking: 2012

Manufacturer: Pacer Digital Systems, Inc.

Signature: Kevin Oeff Digitally signed by Kevin Oeff

DN: cn=Kevin Oeff, o=Pacer Digital Systems, Inc., ou, email=kevinoeff@pacerdigital.com, c=US

Date: 2012.05.24 13:48:04 -04’00’ Position: President Date: 24 May 2012 Place: Indianapolis, IN USA

Warranty

Taylor-Wharton warrants that each of its electronic control products will be free from defects in material and workmanship, in the normal service for which the product was manufactured, for a period of two years from the date of purchase. Taylor-Wharton at its option will either repair or replace any item covered under this warranty.

This warranty is void if the product is used for any other purpose than that for which it was designed, including but not limited to connection with third party systems.

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. Taylor-Wharton shall not be liable for any indirect or consequential damages including, without limitation, damages relating to lost proﬁts or loss of products, resulting from the delivery, use or failure of the product or for any other cause. By accepting delivery of the product, the purchaser acknowledges that this limitation of remedies is reasonable and enforceable. In no case shall Taylor-Wharton’s liability exceed the purchase price for the product.

Labels

Figure 18.1 Main Rating Label

Figure 18.2 Control & Display Label

CS SERIES

Cryowire Network

Power

12 VDC, 3A

Battery 12V, 2.5A

4075 Hamilton Blvd. Theodore, AL 36582

1-800-898-2657

www.taylorwharton.com

Figure 18.3 Connector Box Label

Cryowire Network

Cryowire

Local

Remote

Alarm

Figure 18.4 Battery Label - (Optional)

CS SERIES

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

China Phone: +86 (0) 316 8219770

Phone: +49 (0) 4841 9850

Malaysia

cryoscience@taylorwharton.com

www.taylorwharton.com

Slovakia Phone: +421 (0) 55 727 7138

TW Cryogenics LLC, a wholly owned subsidiary of Taylor-Wharton International LLC (“Taylor-Wharton”)

Phone: +60 (0) 3-51913003

Taylor-Wharton CS Series User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual