Gerber Instruments Micro 3

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Summary

Introduction to Centrifuge Micro III

Product Use and Application

Details the primary application of the Centrifuge Micro III for determining fat content in milk.

Centrifuge Micro III Features

Highlights key features of the Centrifuge Micro III, including its construction and new functionalities.

Operating Ambient Conditions

Specifies the environmental requirements for optimal operation and storage of the centrifuge.

Safety Instructions and Symbols

Understanding Safety Symbols

Explains the meaning of warning symbols used in the manual to indicate potential hazards.

General and Informal Safety Guidelines

General Safety Precautions

Covers essential safety measures for connecting, operating, and maintaining the centrifuge.

Adherence to Operating Instructions

Emphasizes the necessity of reading and adhering to operating instructions for safe use.

Specific Centrifugation Safety Protocols

Centrifugation Safety Rules

Provides critical safety instructions for the centrifugation process, including rotor loading.

Cover Lock Safety Measures

Details safety requirements related to the centrifuge's cover lock mechanism during operation.

Unbalance Switch-off Safety

Explains the unbalance switch-off feature and the procedure following its activation.

Centrifuge Micro III Component Overview

Identification of Key Components

Identifies and illustrates the main components of the Centrifuge Micro III, such as the cover and rotor.

Device Unpacking and Initial Checks

Unpacking Procedures

Steps for safely removing the centrifuge from its packaging and preparing it for placement.

Device Inspection Criteria

Guidelines for inspecting the centrifuge for any transportation damage or operational irregularities.

Accessory Verification

Instructions for confirming that all supplied accessories are present as per the order.

Preventing Device Damage

Advice on handling and placement to avoid physical damage to the centrifuge, including condensation management.

Operating Unit Display and Indicators

Segment Display Functions

Details the function of the 4-digit time display and the 2-digit temperature display on the control unit.

LED Indicator Meanings

Explains the meaning of each LED indicator on the control unit, such as Brake, Time, Rotor, Heating, and Alarm.

Control Panel Button Functions

Button Operation Guide

Describes the functions of the SET, up/down arrow, and START/STOP buttons for controlling the centrifuge.

Centrifuge Commissioning Procedures

Initial Start-up Steps

Step-by-step guide for the first-time power-on and initial setup of the centrifuge.

Setting the Preheating Function

Instructions on activating and utilizing the centrifuge's preheating capability.

Parameter Setting and Daily Operation

Setting Time and Temperature

Procedure for configuring the desired time and temperature settings for centrifugation cycles.

Routine Centrifuge Operation

Guidance on the daily use of the centrifuge, including sample loading and cycle monitoring.

Maintenance, Cleaning, and Checks

General Cleaning and Maintenance Notes

Provides general instructions for cleaning the centrifuge and routine maintenance tasks.

Glass Breakage Cleaning Procedure

Specific steps for cleaning the centrifuge following glass breakage and acid spills.

Unbalance Switch-off Functionality Test

Details the procedure for periodically verifying the functionality of the unbalance switch-off feature.

Troubleshooting and Emergency Procedures

Error Indication Troubleshooting Table

A table listing common error indications, their causes, and recommended solutions.

Emergency Lid Release Protocol

Instructions for manually opening the centrifuge lid in case of a power interruption.

Packaging, Disposal, and Service Information

Packaging and Disposal Guidelines

Information on product packaging for return shipping and proper disposal methods.

Technical Service Contact Details

Provides address, phone, fax, and email for technical support and service inquiries.

Warranty Information

Product Warranty Terms

Details the warranty period, conditions, and limitations for the Centrifuge Micro III.

Order Numbers for Centrifuges and Accessories

Centrifuge Model Order Numbers

Lists order numbers for different configurations of the Centrifuge Micro III.

Accessory Part Order Numbers

Provides order numbers for various accessories and replacement parts for the centrifuge.

Centrifuge Micro III Technical Specifications

Detailed Technical Data

Presents comprehensive technical data including control, power, speed, dimensions, and weight.

The Gerber Instruments Centrifuge Micro III is a small, microprocessor-controlled centrifuge designed for the determination of fat in milk and dairy products according to Gerber or Babcock methods. It boasts high safety standards and reliability, incorporating several key features for precise and safe operation.

Function Description:

The primary function of the Centrifuge Micro III is to separate fat from milk and dairy products through centrifugation. It achieves this by spinning samples at a controlled speed and temperature, allowing for the accurate determination of fat content. The device features a preheating option to bring samples to the desired temperature before centrifugation, ensuring optimal reaction conditions. During operation, a cover lock mechanism prevents the lid from being opened, enhancing user safety. In the event of an unbalance, a dedicated switch-off mechanism automatically stops the centrifuge to prevent damage and ensure safety.

Important Technical Specifications:

Control: Microprocessor control ensures precise and repeatable operation.
Timer: Adjustable from 1 to 99 minutes, allowing for flexible centrifugation durations.
Power: Operates on either 115 or 230 VAC, with a frequency of 60 or 50 Hz, making it adaptable to various power supplies.
Power Heating: 900 W, providing efficient temperature control.
Speed: Fixed program at 1280 rpm ± 50 rpm, optimized for the specified applications.
Centrifugal Power: Permanently adjusted to 350 x g.
Temperature: Thermostatically controlled from 5 °C above ambient up to 65 °C, with a factory preset of 55 °C. This range accommodates various testing requirements.
Dimensions (WxDxH): 430 x 530 x 288 mm, indicating a compact design suitable for laboratory benches.
Weight Netto: 23.5 kg without sleeves.
Weight Total: Up to 28.5 kg, including accessories and packaging.
Warranty: 2 years, providing assurance of product quality.
Test Certificate: CE certified, confirming compliance with European safety, health, and environmental protection requirements.

Usage Features:

The Centrifuge Micro III is designed for user-friendly operation with a clear control unit. The control unit comprises two segment displays, five LED indicators, and four buttons.

Segment Displays: A 4-digit display shows the set time in standby mode and elapsed time during centrifugation. A 2-digit display shows the set temperature in standby mode and the actual temperature during centrifugation.
LED Displays:
- LED Brake (red): Lights up shortly before the end of the braking process.
- LED Time (dual red/green): Red in standby, flashes green during centrifugation.
- LED Rotor (dual red/green): Red in standby, green during centrifugation.
- LED Heating (single red): Flashes red during centrifugation.
- LED Alarm (single red): Flashes red when a failure occurs.
Button Functions:
- SET Button: Used to enter setup mode for setting temperature and time.
- Up Arrow Button: Increases temperature and time settings.
- Down Arrow Button: Reduces temperature and time settings.
- START/STOP Button: Initiates centrifugation, stops the centrifuge before the set time elapses, and activates the preheating function.
Preheating Function: Allows the centrifuge to preheat to a set temperature (factory set to 55°C) at a reduced speed (approx. 400 rpm) before samples are spun at full speed. This function must be reactivated after each use if required.
Symmetrical Loading: The rotor must be loaded symmetrically with samples of equal weight to prevent unbalance. All rotor positions should ideally be filled with sleeves.
Cover Lock: Ensures that the centrifuge can only be operated with the cover closed and prevents opening during operation. An emergency release mechanism is available for power interruptions.
Unbalance Switch-off: Automatically stops the centrifuge and displays an error message ("Ibal") if strong vibrations due to unbalance are detected, protecting the device and samples.

Maintenance Features:

Regular cleaning and maintenance are crucial for the longevity and proper functioning of the Centrifuge Micro III.

General Cleaning: The device should be switched off and disconnected from the power supply before cleaning. The surface and interior can be cleaned with a damp, lint-free cloth. The centrifuge should be left open when not in use to allow moisture to evaporate. Protection from intense UV radiation is recommended.
Glass Breakage Cleaning: In case of glass breakage, the centrifuge must be stopped, opened, switched off, and disconnected from the mains. After cooling, the intermediate plate, butyrometers, sleeves, and rotor should be carefully removed. All glass splinters must be completely removed. If sulfuric acid has leaked, the interior and sleeves must be cleaned immediately according to acid handling guidelines.
Unbalance Switch-off Check: The unbalance switch-off function should be checked periodically by authorized personnel. This involves placing a 10g weight in one sleeve and starting the centrifuge. The centrifuge should switch off automatically, display "Ibal," and emit a beep. If it does not switch off, the device should not be used, and technical service should be contacted.

The Centrifuge Micro III is a robust and reliable instrument, designed for precise fat determination while prioritizing user safety and ease of maintenance.