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Thermo Scientific CryoExtra 20 CE8120 User Manual

Thermo Scientific CryoExtra 20 CE8120
82 pages
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CRYOEXTRA CE8100 SERIES
Liquid Nitrogen Storage System
Operating and Maintenance Manual
326636H01 Revision C April 2020
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Thermo Scientific CryoExtra 20 CE8120 Specifications

General IconGeneral
BrandThermo Scientific
ModelCryoExtra 20 CE8120
CategoryIndustrial Equipment
LanguageEnglish

Summary

Safety and First Aid

Recommended Protective Clothing

Lists essential protective gear for handling liquid nitrogen and cryogenic components.

Recommended First Aid Procedures

Outlines first aid procedures for exposure to LN2 and cryogenic vapors.

Product Information

Intended Use

Specifies the intended applications and limitations for CryoExtra models.

Operating Environment

Ambient Conditions Requirements

Specifies recommended ambient temperature and humidity ranges for optimal operation.

Installation and Startup

Installation Steps

Provides basic instructions for uncrating and installing the freezer.

First Fill Startup Procedure

Details the step-by-step procedure for the initial LN2 fill of the freezer.

Operation

Functions and Features Overview

Overviews the various functions and features of the Controller for monitoring and control.

LN2 Level Measurement

Explains how the LN2 level is measured using a differential pressure sensor.

Automatic Liquid Nitrogen Level Control

Liquid Nitrogen Usage Tracking

Describes how the Controller calculates and displays estimated LN2 evaporation rates.

Temperature Measurement and Alarms

Temperature Measurement Details

Explains how temperature is measured and displayed by the controller.

User Defined Alarms

Details the 18 audible/visual alarms designed to alert users to potential problems.

Remote Alarm Monitoring

Passwords and Security

Explains the multilevel security system and password assignments.

Communication and Networking Capabilities

Communication Capabilities Overview

Outlines advanced communication capabilities via RS-485 serial interface.

Hot Gas Bypass System

Battery Backup System

Details the functionality and components of the optional battery backup system.

Adjusting Settings and Options

Guides users on accessing menus and adjusting controller settings.

Password Entry Mode

Guides users on accessing menus and settings with password protection enabled.

Controller Interface Navigation

Temperature Settings Adjustment

Guides users on adjusting temperature settings and alarm thresholds.

Temperature Alarm Settings

LN2 Saturation Temperature

Level Setpoints and Alarms Configuration

Details how to adjust LN2 level settings and alarm parameters.

Liquid Level Settings Management

Display and Output Settings

Printer Configuration

Timed Filling Configuration

Details advanced options for setting a regular filling schedule.

Timed Filling Setup

Firmware Update Procedure

Password and Security Setup

Calibration Procedures

Temperature Sensor Calibration

Describes single and two-point calibration procedures for temperature sensors.

Hot Gas Bypass Sensor Calibration

Liquid Nitrogen Level Calibration

Hot Gas Bypass Sensor Calibration Procedures

Communication and Networking Overview

Temperature Setting Menus

Temperature Calibration Menus

Hot Gas Bypass Sensor Calibration Menus

Display and Output Menus

Liquid Level Menus

Liquid Level Calibration Menus

Flowchart for navigating the liquid level calibration menus.

Advanced Settings Menus

Password Menus

Preventative Maintenance

Preventative Maintenance Schedule

Provides a schedule for recommended periodic preventative maintenance tasks.

Preventative Maintenance Procedures

Solenoid Valve Replacement

Inline Filter Replacement

Troubleshooting Quick Reference

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