To Next PageTo Next Page
Need help?Do you have a question about the Taylor-Wharton TW-357 and is the answer not in the manual?
General| Model | TW-357 |
|---|---|
| Type | Upright Freezer |
| Voltage | 115V |
| Defrost Type | Manual |
| Shelves | 3 |
| Door Hinges | Right |
General safety information regarding liquid nitrogen properties and handling.
Precautions for avoiding freezing injuries from contact with liquid nitrogen or cold gas.
Importance of ventilation to prevent asphyxiation from nitrogen gas.
Details on liquid nitrogen supply pressure requirements and safety relief valves.
Guidelines for safely disposing of waste liquid nitrogen.
Electrical safety precautions for liquid level controllers and transformers.
Procedures for inspecting shipments and filing damage claims.
Explanation of text formatting conventions used in the manual.
Overview of the system's purpose and features, including the KRYOS controller.
Detailed physical dimensions for different LABS models (80K, 40K, 20K).
Storage capacity (LN2) for different LABS models.
Power supply requirements for the system.
Nominal evaporation rates for different LABS models.
Empty weight specifications for different LABS models.
Maximum gross weight specifications for different LABS models.
Specifications for various inventory control system configurations.
Describes systems designed exclusively for Taylor-Wharton LABS CryoStorage.
Specifies power supply options for the KRYOS controller.
Details standard and optional sensor assemblies for the KRYOS system.
Information on thermocouple types supported by the KRYOS controller.
Specifies the type of solenoid valve used with the KRYOS system.
Describes control modes available with the KRYOS controller.
Outlines security features like password access for the KRYOS system.
Details audible and visual alarm indicators on the KRYOS controller.
Explains diagnostic capabilities of the KRYOS controller.
Describes automated temperature calibration via the KRYOS front panel.
Information on the RS-232 serial port for KRYOS communications.
Specifies data logging capacity for system, alarms, and temperatures.
Details the CR2032 coin cell battery for time/date backup.
Instructions for inspecting incoming shipments for damage and completeness.
Procedures for returning the system for repair or replacement.
Details on connecting the liquid nitrogen supply and pressure requirements.
Instructions for connecting the 16.5 Volt AC power supply.
Step-by-step guide for installing the KRYOS controller in the field.
Procedure for the initial filling of the cryostorage system with liquid nitrogen.
Description of the KRYOS interface panel with display and keypad.
Location and function of the main control unit, the system's "brain".
Details on standard and optional thermistor sensor assemblies.
Function of the lid switch in determining lid status and activating features.
Information on the 12 VDC solenoid valves compatible with the system.
Explains Type T thermocouples for temperature monitoring.
Details on wall transformers for KRYOS and battery backup versions.
Information on the 12VDC battery backup system.
How to connect a remote device for alarm notification.
Configuration steps for switching from vapor phase to liquid phase storage.
Placement of the thermocouple for monitoring temperature.
Importance and procedure for adding an inventory control system.
Diagram and description of a typical rack configuration.
Table detailing vial capacities for different rack types.
Illustration of blood bag storage within a cassette.
Table showing capacity and frames for Fenwal 4R9951 blood bags.
Overview of the KRYOS controller's functions and features.
Step-by-step explanation of the automatic liquid nitrogen fill process.
Instructions for turning the control system on and off.
Explanation of the four lines of information displayed on the main screen.
How to navigate and use the KRYOS controller's menu system.
How the Help button provides assistance within the menu system.
How to select and manage thermocouples for temperature monitoring.
Step-by-step guide for calibrating thermocouples using an ice water bath and LN2.
How to test the temperature circuitry and thermocouples.
Explanation of how thermistor-based sensors are used for liquid level control.
Procedure for testing individual thermistor sensors.
How to set the sensor type (4, 7, or 8-sensor) in the menu.
Overview of how the KRYOS control tracks conditions and generates alarms.
How to set or disable the high-temperature alarm for the first thermocouple.
How to set or disable the high-temperature alarm for the second thermocouple.
Configuration of Low LN2 Supply, Sensor Error, Remote Alarm, Lid Open, and Thermocouple alarms.
How to test audible, visual, and remote alarms.
Overview of the onboard memory logging functions and types of logs.
How to send system, error, and temperature log data to the serial port.
Enabling/disabling logging for sensor errors, low LN2 supply, and remote alarms.
Enabling/disabling logging for thermocouple open, high temp, fill, lid action, and user access.
Adjusting the rate at which temperatures are logged.
Procedures for erasing system, error, and temperature logs.
Overview of KRYOS security features like password protection.
Setting up and managing the menu access password.
Covers serial port, date/time, lid, defog, quick-chill, and temperature control settings.
Enabling or disabling the lid switch feature.
Configuring the timer for manual defog operations.
Setting up the automatic defrosting feature activated by lid opening.
Configuring the quick-chill feature for rapid cooling after lid closure.
Enabling temperature control based on Thermocouple #1 readings.
Setting the target temperature range for control.
Configuring the serial port for communication and data transfer.
Setting the system's date and time.
Tracking personnel access by requiring an ID number upon lid opening.
Adjusting the temperature control range for LN2 usage and variability.
Options to prevent overfills and frozen valves, including valve duration and de-icing.
Setting the maximum time the valve can stay open during a fill.
Enabling or disabling the automatic de-icing feature for stuck valves.
Reducing false signals from sensor splashing with LN2.
Adjusting the intensity of the KRYOS display.
Accessing information about the control's serial number and software version.
Comparison of regular Kryos and battery-backed versions, including differences.
Procedure for charging the KRYOS battery.
Expected lifespan and recommendation for replacing lead-acid batteries.
Information on optional CRYOCOM software for computer communication.
Procedure for cleaning the fill line strainer.
Steps for defrosting the system and preventing moisture ingress.
Procedure for cleaning and sterilizing the cryogenic vessel.
Procedure for testing normal nitrogen consumption.
How to adjust sensor positions for accurate liquid level readings.
Comparison of KRYOS software versions 4.0 vs. 9.0/9.0B.
Options for using the LABS 80K for liquid storage applications.
Step-by-step guide for removing and installing the solenoid valve.
Procedures for testing controller electrical components.
Explanation of thermistor resistance values at different temperatures.
How liquid level controllers interpret sensor values and trigger actions.
Guidance on identifying the source of problems within system subsystems.
Troubleshooting steps for a non-responsive controller.
Steps to diagnose and resolve high liquid level indications.
Troubleshooting steps for detecting a low liquid nitrogen supply.
Diagnosing and resolving issues related to open sensors.
Explains Freeze-Guard function and valve open duration settings.
Troubleshooting humming noise from solenoid valve and transformer.
Meaning of the "Check" message during Splash-Guard protection.
Troubleshooting the lid switch and alarm.
Troubleshooting the Quick Chill feature.
Troubleshooting the defog feature.
Steps to fix unresponsive push buttons on the display panel.
Adjusting sensor assembly and offset for accurate liquid level readings.
How power interruptions are logged and trigger remote alarms.
List of replacement parts for the refrigerator unit.
List of replacement parts for the level controller and associated components.
