How To Prevent Algae And Bacteria; Warranty Information; Maintenance And Service; Routine Maintenance - Grant Instruments Optima T100 Manuel D'utilisation

7.3

How to prevent algae and bacteria

Water baths provide the ideal environment for the growth of micro-organisms. If left
uncontrolled the growth of these organisms can result in a range of serious problems and
health risks from pathogenic bacteria.
The growth of algae on the surface of parts will cause biofouling which can reduce
performance.
Micro-organisms that produce acidic metabolic by-products can cause bio-corrosion by
depolarisation of metal surfaces.
There are a number of biocides available on the market.
8.0

Warranty information

When used in laboratory conditions according to this manual, this product is guaranteed
for THREE YEARS against faulty materials or workmanship.
Extended warranty for years four and five can be purchased by contacting our sales
department at labsales@grantinstruments.com.
9.0

Maintenance and service

9.1

Routine maintenance

The over-temperature cut-out on the TC120 should be checked periodically by turning
the over-temperature dial with a screwdriver anticlockwise until the alarm lamp comes
on. The TC120 will also sound a buzzer and "Cut" will be shown on the display. The
over-temperature dial should then be turned to the maximum setting without the alarm
cancelling. The TC120 should be powered off and back on to confirm that the cut-out
can be reset correctly. If the alarm lamp fails to light when the value indicated on the
over-temperature dial is more than 10°C below the current temperature as indicated by
the main display, then the unit should be checked by a competent person.
The float liquid level protection should also be checked periodically by lowering the level
of liquid in the bath and noting that the unit cuts out with the top turn of the heater still
immersed in the liquid. The float should also be checked periodically to ensure no
limescale, dirt or debris could impede the operation at low liquid level.
When hoses are fitted to the pump they should be inspected periodically and replaced as
necessary to avoid hose failure.
No other routine maintenance is required.
9.2

Cleaning

Clean the outside of the equipment with a damp cloth, using water only. Do not use
chemical cleaning agents. Before using any other cleaning or decontamination method,
check with Grant Instruments or your local representative to make sure that the proposed
method will not damage the equipment. Scale on immersed parts can be removed using
chemical de-scaling products designed for use on equipment that has metal parts.
T100 & TC120
Operating Manual
www.grantinstruments.com
EN
30423 V4
Page 20