Dynalab SI80/120V/60 - Manual (Page 4)

2
The moving platform is operated by a geared
induction motor. The speed is modulated by a
soft start feedback controller in order to avoid
splashing on start up and maintain long-term
stability of set speed.
SI70 and SI80 are supplied with 2 extra platforms
that may be mounted in a tier to increase
capacity.
The doors of all models are fitted with a safety
interlock device to prevent the platform moving if
the door is open.
Operation
(see fig. 1 & 2 for controls)
Position the apparatus on a firm level surface
ensuring there is sufficient room to open the
door outward.
Ensure the temperature and speed control knobs
are fully to the left and switch the mains, motor
and heater ON as required.
Temperature Selection - all models
Depress and hold the press to set switch and turn
the temperature control knob until the required
temperature appears on the display. On releasing
the switch, the display will revert to the actual
temperature of the incubator. The load indicator
will remain lit until the desired temperature
setting is reached at which time it will flash to
show that the temperature is being controlled.
Once the temperature has been set, turn the over
temperature control knob to approximately 20°C
above the set temperature.
Platform operation - SI50
Secure the vessels to be shaken between the
rubber coated bars. Ensure the door is fully
closed and then turn the speed controller to the
right until the required shaking speed is observed.
Platform operation - SI70 and SI80
Place the vessels to be shaken on the platform
with the load distributed as evenly as possible.
Ensure the door is fully closed and then turn the
speed controller to the right until the required
shaking speed is observed.
Installing the tier system - SI70 and SI80
SI70 and SI80 are supplied with 2 extra platforms
tiers which may be used to increase capacity. The
units are supplied with 4 long magnetic support
legs and 8 shorter magnetic support legs to allow
a choice of spacing between the platforms. Also
both platforms may be fitted at the same time if
the shorter legs are used.
To fit the accessory platform, first screw a
magnetic leg onto the captive thread in each
corner.
Ensure that the motor is turned off. The
accessory platform can then simply be placed on
top of the main platform and will be held in
place by the magnetic legs. The second accessory
platform can then be similarly located on top of
the first. To remove for cleaning etc., simply lift
the platform, separating the magnetic legs from
the supporting platform below.
Adjustment of Tilt Angle - SI70
1. Switch motor off.
2. Remove anti-slip mat from the platform and
switch the motor back on and adjust the
motion to a slow speed. Observe the two
apertures at the centre of the platform,
during rotation two adjusting screws will
come into view. When they are aligned
switch the motor off.
3. There are 2 locking screws located under the
platform on the drive boss, facing front on.
Check that these are accessible and, if not,
switch the motor back on and allow the unit
to rotate 180° and switch off when the
adjustment screws are aligned again.
4. Unlock the 2 locking screws positioned on
the drive boss using the extended wrench
provided. The tilt angle can now be adjusted