Refurbishing And Maintenance Of Water Bath For Use In The Laboratory

Project and Seminar Material for Science Laboratory Technology SLT

Refurbishing And Maintenance Of Water Bath For Use In The Laboratory


In this study, the researcher attempted to describe the refurbishment of a temperature controlled shaking water bath. The instrument has mechanical part and electronic part that consists of temperature controller and shaking circuit. Temperature controller circuit has been designed locally and mechanical part and shaking circuit has been re-installed successfully. The circuit has been designed using IC transducers (590KH) which acts high impedances constant current generator (1µA/0K) temperature range from 00C above ambient +1000C . The instruments have been refurbished for MIID, IFRB, AERE, Savar.

Table Of Content

Preliminary Page(s)

  • Title Page
  • Declaration
  • Approval
  • Dedication
  • Acknowledgement
  • Abstract
  • Table of Content

Chapter One

1.0 Introduction

  • 1.1 Background To The Study
  • 1.2 Statement Of The Problem
  • 1.3 Aim And Objectives
  • 1.4 Justification Of The Study
  • 1.5 Limitation Of The Study

Chapter Two

2.0 Literature Review

  • 2.1 Conceptual Review
  • 2.2 Laboratory Water Bath
  • 2.3 Precautions
  • 2.4 Types Of Water Bath
  • 2.4.1 Circulating Water Baths
  • 2.4.2 Non-Circulating Water Baths
  • 2.4.3 Shaking Water Baths
  • 2.5 Water Bath Technologies

Chapter Three

3.0 Methodology

  • 3.1 Principle Of Operation
  • 3.2 Circuit Description

Chapter Four

4.0 Result And Discussion

  • 4.1 Results
  • 4.2 Discussion

Chapter Five

5.0 Summary And Conclusion

  • 5.1 Summary
  • 5.2 Conclusion
  • References

Chapter One

1.0 Introduction

1.1 Background To The Study

In any country, developed or developing, the majority of faults affecting laboratory and hospital equipment can be avoided if the user has a clear understanding of its operation. A lack of understanding of the construction and function of such equipment increases the degree of misuse and risk of damage and, in some cases, the danger to the patient.

Evidently, many of the laboratory, diagnostic imaging and hospital instruments currently in use are sophisticated and must be serviced by specialists in case of major breakdown. However, in many cases, breakdown can be avoided if certain basic rules of prevention are followed. Unfortunately, there are no textbooks and surprisingly little written information on the maintenance of basic laboratory, imaging and hospital equipment. Laboratories and hospitals in developing countries suffer particularly from the fact that much equipment is imported, while adequate information on maintenance and repair is rarely provided by the supplier.

Water bath is a device for regulating the temperature of anything subjected to heat by surrounding the vessel containing the sample with specific temperature.It is thematically controlled at 370C and can also be start up to 560C depending on the investigation being carried onto it is also used for sterilization in the laboratory, it has a temperature adjustment knob and features temperature ranges from ambient to 650C without the temperature control is to 0.5 *Amazo, 1992)

1.2 Statement Of The Problem

The refurbishing of the Gallen water bath was initiated by nonfunctioning and performance of the water bath in the biology laboratory SLT IMT Enugu.

The thermostat and high heater of 1.5KW was confirmed damaged through troubleshooting the outer layer was discovered to be rusting.

1.3 Aim And Objectives

The aim and objective of this project is the refurbishing and repair of the Gallenkamp water bath in the biology laboratory of the depart of SLT, IMT Enugu.

Refurbishing of water bath in the biology laboratory was carried out to creat awareness and to familiarize the students with the use, maintenance and repair of water bath used in the laboratory.

1.4 Justification Of The Study

Water bath aids in laboratory experiment especially where substance require to undergo heat at a given temperature.

As stated before, that water batch help in sterilization at controlled temperature.

From the research carried out, students are made to understand that substance that cannot be heated in a Bunsen burner or other media can be carried out in water bath in a given laboratory.

It provides practical experience in experiment, laboratory material and research work.

1.5 Limitation Of The Study

This work was limited to the refurbishing of the existing water bath in biology laboratory of SLT IMT Enugu. This was because the time with which to finish this project was too short.

Also finances mean of transportation and inadequate power supply limited the scope of this work.

Chapter Five

5.0 Summary And Conclusion

5.1 Summary

Control system is used in all areas of industry. The process may encompass almost any conceivable operation ranging from operation of a machine tool to filling milk bottles. The components comprising a simple control system can be categorized as controller, final actuator or servo, the process and the sensor.

A precise temperature control module for shaking water bath has been designed that consists of process means a simple electric heater; control variable is the temperature; on-of controller, triac as a servo and the IC sensor. The module has been designed to meet industrial research, environment, biotech and general laboratory applications which require close temperature control. Temperature range from 00C above ambient +1000C, infirmity being ± 0.30C [3]. Multi-turn potentiometer control for simple, accurate and repeatable operation. Digital panel meter temperature display, simultaneously reads set point and water temperature.

5.2 Conclusion

The refurbished Shaking Water Bath has been tested repeatedly and its performance was found satisfactory. The data in the table.1 and the graphical representations show the performance and characteristics of the system. The designed module is cost effective, simple and reliable in operation in the Shaking Water Bath.

Refurbishing And Maintenance Of Water Bath For Use In The Laboratory

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