Operating Procedures; Operation; Water Level; Operation Above 60°C - Grant GLS Aqua 18 Plus Mode D'emploi

5.0

Operating procedures

5.1

Operation

5.1.1 Water level

Ensure that the baths are used with the shaking tray in place and that the water always
covers the tray. The maximum water level should not be higher than the swage line
around the top of the bath (around 2.5cm from the top). These criteria apply both when
there are no vessels in the bath and with the maximum contents. Note that water level
may have to be reduced at higher shaking speeds to prevent spillage and stalling of the
mechanism.
Avoid letting the bath run dry. In the event this does happen, the safety cutout will trip
and disconnect the heater. If this does happen, unplug the bath and have the cut-out re-
set by a competent person.
5.1.2 Operation above 60°C
The lid must be used above 60°C to maintain proper temperature control and to ensure
that the water temperature reaches the set point
The lid will also prevent excessive evaporation that requires the bath to be filled more
often and will save energy

5.1.3 Use as a thermostatic bath without shaking

If the shaking trolley and drive magnet are lifted out, a shaking bath can be used as a
simple thermostatic bath. When used in this way, if flat bottomed vessels or objects are
to be placed in the bath, always use a raised base tray (optional accessory) to avoid
damage to the under-tank heater.

5.1.4 Emptying the baths

Before emptying any bath allow the water temperature to fall to a safe level and take
reasonable precautions to prevent accidental spillage.
Drain taps are included in both baths to allow convenient emptying. These baths should
be emptied using the drain tap prior to moving. To empty the bath using the drain tap,
push the supplied drain insert into the drain tap (see picture below). Note that the water
will begin to empty from the bath as soon as the drain insert is fully engaged. A length of
hose can be added to the barbed end of the drain insert if required.
29339 Ver. 3 GLS Aqua Plus
Page 7 Operating Manual
www.grant.co.uk