Grant Instruments CS200G - Manual (Page 12)

OLS200, CSG200
15214 Ver 9 - January 2010 57U
Operating Manual Page 11 www.grant.co.uk
6.2 CS200G refrigerated cooler
Refrigerated cooler for use in liquids between 0° and 40°C.
Immersed material: the cooling coil is nickel-plated copper.
Power consumption 500VA
Cooler extraction @ 20°C 200 W
@ 0°C 100 W
Supply voltage: 230V

10% @ 50/60Hz
Size: 475/320/255
Mass: 21Kg
7
Maintenance and service
7.1 OLS200 Shaking bath
All Grant laboratory products are designed to comply with IEC1010-1 and can be flash tested.
Some are fitted with radio frequency interference suppressors, so it is recommended that only a
d.c. test is performed.
The overtemperature cut-out should be checked periodically by turning the overtemperature
push to reset knob anticlockwise until the alarm lamp comes on. The cut-out should then be re-
set and set-up again (see 3.1.7) If the alarm lamp fails to light with the knob turned fully
anticlockwise the unit should be checked by a competent person.
To ensure free running of the trolley keep the liquid and the bath clean and free from scale. From
time to time remove the tray and trolley and the drive magnet. Clean the trolley wheels and the
centre of the tank where the wheels run, with warm soapy water to remove all scale and grit. Also
clean the magnet and its housing. Be careful not to damage the magnet.
The base tray and the bottom of the tank can be cleaned by removing the base tray from the tank.
To remove: undo and remove the nuts, followed by the washers and the base tray. To replace:
relocate on the four screw heads and fix in position by replacing the four washers and nuts.
If the bath is used with water and is to be left unused for longer than a couple of days, drain the
water, remove the drive magnet and dry out its housing. This will prevent the possibility of
corrosion which can occur with distilled or deionised water and some tap water, even to the high
grades of stainless steel used in the manufacture of the bath, and unwanted scale building up
around the drive magnet.
When used with water under certain conditions, algal growth can occur which can be mistaken for
rust. It can be cleaned out by washing with warm soapy water.
Cleaning: external surfaces can be wiped clean using a damp cloth and if necessary a mild
detergent.
No other routine maintenance is required.
7.2 Refrigerated cooler: CS200G
Cleaning: external surfaces can be wiped clean using a damp cloth and if necessary a mild
detergent.
Dust on the refrigeration condenser
Cooling power will be reduced if the fins behind the front grille become clogged with dust.
Examine monthly and, if necessary, call a competent person to take off the cover and remove the
dust.
The flexible hose to the cooling coil should be checked periodically for wear or damage.
No other routine maintenance is required.