Taylor TW-357 Control On Battery Backup Version, Solenoid Valve, Display Brightness, Operation

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TW-357 REV E

Display Brightness

DISPLAY BRIGHTNESS can be set through the menu system of the control (MENU, 6, 3). This option changes the intensity of the display. The possible choices are 25%, 50%, 75% and 100%.

About this Control

ABOUT THIS CONTROL can be accessed in the menu system (MENU, 6, 4). This option provides information about the control. In particular it tells the serial number of the control and the software version that the control is running.

Control On Battery Backup Version

This controller is similar to the AC Kryos Controller. The menu system and all features are identical. The only operational difference is if a power failure occurs, the control goes into battery backup mode. The Kryos control operates on 24 VAC power. As an option, however, the control can also operate on battery power to provide up to 72 hours of continuous service without AC power. The system is designed for full operational service during a power failure, including full solenoid valve operation. The battery backup system can be ordered from Taylor-Wharton and should be factory installed.

Differences between the regular Kryos and the battery backed Kryos:

Please see the chart below for the differences between the two systems.

 

Regular Kryos

Battery Backed Kryos

SOLENOID VALVE

24

VAC solenoid

12 VDC solenoid

Wall Transformer

24

VAC/ 40 Voltamps output

16.5 VAC/ 40 Voltamps output

Battery

None

17amp-hour

Battery Extension Cable

None

Connects battery to control board

Software

V4.0

V4.0

Control Board (1)

Black 2-pin solenoid valve

Red 2-pin solenoid valve plug &

 

plug

Red 3-pin battery plug.

(1)The control board for the battery backup is quite different than the control board for the regular Kryos in that a number of parts are either removed or changed. The best way to tell if the control is a battery backed unit or a regular unit is to look at the valve connector.

Operation

The software is designed such that if power is lost and a battery-backed control is in place, the control detects the loss of power and continues to operate from the battery. If power is lost, a “Battery Backup” message appears on the display, the alarm beeper sounds and the red LED starts to flash. After a short period of time (approximately 10 seconds) the display will go dark to conserve power, however the red LED will continue to flash and the beeper will continue to sound until it is muted. The display can be brought back at any time by pressing any button on the front panel.

The control will continue to monitor the system, record logs and operate the valve until the battery runs too low. Original specifications required that the battery run, fully operational, for at least 72 hours. Battery backup mode is treated by the control as an alarm condition. This means that the remote alarm will be triggered after a period of time as defined by the user.

Note: We strongly recommend that all Cryo-Storage systems be connected to a redundant alarm, a building alarm system or a dialer. This insures that someone is notified if an error condition persists.

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Contents Labs TW-357 REV E Table of Contents InstallationLiquid Nitrogen System Safety Precautions for Liquid NitrogenExtreme Cold Cover Eyes and Exposed Skin Keep Equipment Area Well VentilatedDispose of Waste Liquid Nitrogen Safely Freight Damage PrecautionsElectrical Text Format Notation General InformationLabs Cryostorage Specifications Kryos Specifications Repackaging for Shipment InstallationUnpacking and Inspection Liquid Nitrogen Supply ConnectionKryos Control Field Installation Power Supply ConnectionInitial Fill OperationControl Components Sensor AssemblyInterface Panel Solenoid Valve Lid SwitchBattery Backup Remote AlarmOperating Parameters Liquid Phase StorageThermocouple Positioning Adding an Inventory Control SystemInventory Control System Layouts Labs Cryostorage System Racks are not Square Orientation is ImportantLABS-80K LABS-40K Fenwal 4R59953 Blood Bag Rack Arrangements Fenwal 4R5462 9955 Blood Bag Rack Arrangements Normal Fill Cycle PowerControl Operation IntroductionMenu System Main Display ScreenHigh Temperature 4.1 Valve Open Help Screens Temperature Thermocouple SelectCalibrate Temperature Test Temperature SystemSensor Type Alarms and Error ConditionsTest Alarms System AlarmsLogging Dump Logs Error LogsSecurity Temperature LogsSystem Logs Erase LogsControl Temperature Lid Switch SetupControl By Temperature Temperature Control SettingsUser Access Logs Serial Communications and RS-232 SettingsTime and Date Set Valve Open Duration Control RangeFreeze-Guard Options Valve MonitoringAbout this Control Control On Battery Backup VersionSolenoid Valve Display BrightnessInterface Software Battery LifeStrainer Cleaning Instructions MaintenanceDefrosting Your LAB-Series CryoStorage System Cleaning Your Taylor-Wharton CryoStorage System Making Adjustments to the Labs Kryos Sensor Assembly Units of measure Default Start Fill / Stop Fill Default Auto DefogKryos Kryos V9.0 & Kryos V9.0B Level Readings Offset ValueOhms to 18 K ohms Removing/Installing the Solenoid ValvePin View Schematics Sensor Plug SchematicPlumbing Assembly Labs Plumbing AssemblyIndicates High Liquid Level TroubleshootingSymptoms Controller Will Not Turn onIndicates Low LN2 Supply Temperature reading 10 to 20 degrees warmIndicates Open Sensor Fill Solenoid Makes Humming Noise Lid Open AlarmQCF Quick Chill Feature Will Not Operate Fill Solenoid Cycles On and OffLiquid Level Readout is Incorrect Defog Feature Will Not OperatePower Failure Alarm Push Buttons Will Not RespondFactory Settings Level Controller Electrical/Mechanical Parts80K/40K/20K Replacement PartsTaylor-Wharton Technical Services. Phone 800-898-2657 Fax Harsco Corporation
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