Grant Instruments CS200G - Manual (Page 8)

OLS200, CSG200
15214 Ver 9 - January 2010 57U
Operating Manual Page 7 www.grant.co.uk
3.1.4 Setting the overtemperature cut-out
To protect both the unit and your samples, the overtemperature cut-out should be set each time
the required operating temperature is changed. Turn the overtemperature push to reset knob
fully clockwise and press to reset. The cut-out is now set at its maximum. Allow the bath to
stabilise at the required operating temperature. Turn the control slowly anticlockwise using a
screwdriver until the red alarm lamp comes on. Press the knob and gently turn clockwise until the
alarm lamp goes out. Turn the knob anticlockwise three quarters of the way back towards the
point where the alarm lamp came on. The overtemperature cut-out is now set approximately 10°C
above the required operating temperature.
Note: When the cut-out has operated, the bath needs to cool to below the set temperature before
the cut-out can be reset. Push the knob to reset the cut-out.
3.1.5
Draining
Allow the liquid to cool to below 60°C before draining. The drain connector is positioned on the
rear panel. The drain insert is fitted into a clip on the rear panel next to the drain connector.
Connect a suitable pipe to the drain insert. Place the end of the pipe over a drain or in a container.
Push the drain insert into the drain connector. The liquid will now drain from the bath. To remove,
press the button and pull out the insert. Replace in the clip.
3.2
CS200G
The mains (power) switch is on the rear of the unit.
Switch on at the rear. Always ensure that the bath is switched on to provide temperature control,
and that shaking is switched on at low temperatures, to prevent the formation of ice.
Do not switch on if:
- the temperature of the liquid in the bath is above 40°C
- the cooler has been tilted by more than 25° during the past six hours
- the interval since switching off the cooling system is less than 10 minutes
4
Accessories
4.1 Universal tray UT200
The universal tray accommodates a wide variety of vessels. The configuration of the springs can
be altered to accommodate the maximum number of each size of Erlenmeyer flask as follows:
Figure
45 x 25 ml flasks 6
28 x 50 ml flasks 7
18 x 100 ml flasks 8
11 x 250 ml flasks 9
6 x 500 ml flasks 10
3 x 1000 ml flasks 11
Springs may be removed to accommodate awkward shaped vessels, for example boxes for
hybridisations.
There are two rows of holes in the long sides. The upper set should be used for high vessels and
the lower set for vessels up to about 50mm tall. Select the spring configuration which best suits
the application.
To change spring positions, slide out the retaining rod, place the end of the spring into the
required hole and refit the rod.
4.2
Plain Tray UTP
Universal tray without springs.