Thermo Scientific Locator Jr User Manual

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User Manual
Locator and Locator Plus
Cryogenic Storage Vessel with or without
Ultrasonic Level Monitor
Operation Manual and Parts List LT509X9 (7018141) Rev. 4

Thermo Scientific Locator Jr Specifications

General

Brand	Thermo Scientific
Model	Locator Jr
Category	Laboratory Equipment
Language	English

Summary

Section 1 Safety Information

Please Read

General advice on reading the manual and understanding its contents before use.

General Usage

Guidelines for proper product usage and avoiding misuse that could impair protection.

Warnings

Critical warnings for safe operation, including hazards like frostbite and asphyxiation.

Cautions

Important precautions for preventing damage and injury, such as overfilling or necktube contact.

Section 2 General Specifications

Environmental Conditions

Operating and storage environmental parameters, including temperature, humidity, and altitude.

Electrical

Electrical input and output specifications for units equipped with monitors.

Declaration of Conformity

Regulatory compliance information for CE models, detailing EMC and Safety standards.

Section 3 Unpacking

Section 4 Operation

Filling Instructions

Step-by-step guide for adding liquid nitrogen to a new or warm vessel to prevent damage.

Measuring Liquid Nitrogen Quantity

Methods for checking the liquid nitrogen level using a yardstick or level monitor.

Storing Samples in Vapor Phase

Procedure for storing samples in the vapor phase above the liquid nitrogen level.

General Cleaning Instructions

Instructions for cleaning the exterior surfaces of the vessel with a mild soap solution.

Section 5 Replacement Parts

Section 6 Liquid Nitrogen Level Monitor Operation

Installation

Steps for installing the level monitor, including replacing the existing cover.

Connection to Remote Alarms

Detailed steps for connecting the LN2 level monitor to a remote alarm system.

Alarm Contact Specifications

Technical details of the LN2 level monitor's alarm contact, including form type and ratings.

Principles of Operation

Explanation of how the ultrasonic sound waves are used to sense the liquid nitrogen level.

Microprocessor Functions

Description of the LED display and microprocessor control for level indication.

Audible and Visual Alarms

Description of different alarm states, indicators, and events for low level or errors.

Safety Feature

Details on the microprocessor reset procedure required when the cover is removed.

Level Monitor Operation

Procedures for operating the level monitor after installation, including equilibration.

Section 7 LN2 Level Monitor Troubleshooting and Parts List

Ordering Procedures

Information on how to order replacement parts or request service, including RMA process.

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