Related Manuals for Thermo Scientific CryoExtra 20
Summarization of Contents
Product Information
Thermo Scientific CryoExtra Freezer Models
Lists Thermo Scientific CryoExtra freezer models and their specifications.
Plumbing Assembly
Details the components and function of the LN2 plumbing assembly.
Controller Display
Describes the controller's front panel display and key functions.
Controller Physical Connections
Details the physical connections on the back of the controller unit.
Specifications
Provides detailed specifications for the controller and freezer system.
Operating Environment
Defines the recommended ambient temperature, humidity, and atmospheric pressure.
Operation Overview
Functions and Features
Overviews the controller's functions and features for monitoring and controlling the freezer.
Adjusting Settings and Options
Explains how to access and adjust various user settings and operational options.
Calibration Procedures
Details the procedures for calibrating temperature and level sensors.
Communication and Networking
Describes communication and networking capabilities for connecting controllers and PCs.
Remote Alarm Tests
Explains how to test global remote and discrete alarm contacts.
Controller Menu Maps
Main Setup Menus
Provides a flowchart for navigating the main controller setup menus.
Temperature Setting Menus
Illustrates the menu flow for configuring temperature settings and alarms.
Temperature Calibration Menus
Shows the menu flow for performing temperature sensor calibration.
Add On Menus
Illustrates the menu flow for accessing additional features like battery status and bypass settings.
Hot Gas Bypass Sensor Calibration Menus
Hot Gas Bypass Sensor Calibration Menus
Provides a flowchart for calibrating the hot gas bypass sensor.
Display and Output Menus
Illustrates the menu flow for display and output settings like units and printer.
Liquid Level Menus
Shows the menu flow for configuring liquid level settings, alarms, and calibration.
Liquid Level Calibration Menus
Illustrates the menu flow for the liquid level calibration process.
Advanced Settings Menus
Advanced Settings Menus
Provides flowcharts for various advanced controller settings.
Password Menus
Illustrates the menu flow for managing passwords and security levels.
Controller Display Screens
Shows various controller display screens for alarms and status.
Additional Feature Settings
Battery Backup Status
Shows how to view the battery status and power failure alarm.
Hot Gas Bypass Settings
Explains how to adjust hot gas bypass parameters like setpoint and time delay.
Lid Switch Settings
Details how to configure lid switch, fog clear, and lid open alarm settings.
Display and Output Settings
Temperature and Level Display Units
Describes how to change temperature and liquid level display units.
Liquid Usage Display
Explains how to enable/disable the liquid usage display and alarm.
Alarm Buzzer
Details how to enable or disable the controller's audible alarm buzzer.
Languages
Explains how to change the controller's language setting.
Printer Setup
Details the installation and configuration of the controller compatible printer kit.
Advanced Settings
Timed Filling
Explains how to set a schedule for automatic LN2 filling.
Maximum Fill Time
Details how to adjust the maximum allowed time for a fill cycle.
Time and Date
Describes how to set the controller's time, date, and time format.
Communication Settings
Explains how to configure serial port settings (COM Setup/Type).
MODBUS ID
Describes how to set the controller's MODBUS ID or ASCII Unit ID.
One Fill All Fill (OFAF)
Details settings for networking multiple controllers for coordinated filling.
Restore Default Settings
Explains how to reset the controller to factory default settings.
Restart Controller
Describes how to restart the controller via the Advanced Settings Menu.
Firmware Update
Outlines the procedure for updating the controller's firmware.
Password and Security Setup
Password Entry Mode
Explains how to enable or disable the controller's password entry mode.
Global Password Change
Describes how to change the global password for security level 4 clearance.
Multilevel Passwords
Details how to set up and change the 9 multilevel passwords.
Temperature Sensor Calibration
Single Point Calibration
Details the procedure for single point calibration of temperature sensors using LN2.
Two Point Calibration
Details the procedure for two point calibration of temperature sensors using LN2 and ice water.
Liquid Nitrogen Level Calibration
Dip Stick Procedure
Explains how to use the meter dip stick to measure LN2 level.
Hot Gas Bypass Sensor Calibration
Hot Gas Bypass Sensor Removal
Describes steps for safely removing the hot gas bypass sensor.
Hot Gas Sensor Single Point Calibration
Details the procedure for single point calibration of the hot gas bypass sensor.
Hot Gas Sensor Two Point Calibration
Details the procedure for two point calibration of the hot gas bypass sensor.
Remote Alarm Tests
Global Remote
Explains how to check continuity of global remote alarm contacts.
Discrete Contacts
Explains how to test discrete contacts for continuity and alarm states.
Preventative Maintenance
Preventative Maintenance Schedule
Outlines the recommended periodic maintenance schedule for CryoExtra freezers.
Level Verification and Supply Check
Describes weekly level verification and ensuring adequate LN2 supply.
Plumbing Leak Check and Alarm Tests
Details plumbing leak checks and level alarm testing procedures.
Maintenance Procedures
Covers lid thaw, folding step inspection, filter, valve, and gasket replacement.
Replacement Parts and Accessories
Replacement Parts
Lists part numbers and descriptions for replacement components.
Accessories
Lists part numbers and descriptions for available accessories.
Troubleshooting Quick Reference
Freezer Not Filling
Lists causes and fixes for issues related to the freezer not filling.
Slow or Long Fill Times
Lists causes and fixes for slow or prolonged freezer fill times.
Incorrect Temperature Readings
Lists causes and fixes for inaccurate temperature readings from the freezer.
Incorrect LN2 Level Readings
Lists causes and fixes for inaccurate LN2 level readings.
Short Cycle Fills
Lists causes and fixes for issues causing short fill cycles.
High Liquid Usage
Lists causes and fixes for unexpectedly high LN2 usage.
Consistently High Liquid Usage
Lists causes and fixes for consistently high LN2 usage, potentially due to vacuum failure.
EN Compliance Tables
Electromagnetic Emissions Guidance
Provides manufacturer's declaration regarding electromagnetic emissions compliance.
Electromagnetic Immunity Guidance
Provides manufacturer's declaration regarding electromagnetic immunity compliance.
Appendix
Reference Tables
Contains reference tables for temperature sensor resistance values.
LN2 Volume per Inch Table
Provides a table showing LN2 volume per inch for different CryoExtra freezer models.
LN2 to Pressure Unit Conversion Table
Contains a table for converting LN2 inches to various pressure units.
Need help?
Do you have a question about the CryoExtra 20 and is the answer not in the manual?
Questions and answers