4
Operation
Controller positioning
The SCT1 temperature controller is supplied with
a detachable temperature probe (Figure2). This
useful feature enables the SCT1 temperature
controller to be positioned away from damaging
fumes.
The temperature controller is factory set such that
the retort clamp is positioned for mounting on a
vertical retort rod. To mount the SCT1
temperature controller on to a horizontal retort
rod, ease back the clamp situated at the rear of
the controller sufficiently to clear the right-angled
raised location. Rotate clockwise by 90° until the
clamp snaps back into the location.
Probe positioning
For optimum temperature control, ensure the end
of the sensing probe is immersed at least 20mm
deep into the medium being controlled. The
temperature probe when not in use should be
placed in the probe holder located on the left
hand side of the SCT1 control panel. For safety
and to avoid contamination, always wipe the
probe clean prior to placing into holder.
Using the SCT1 temperature controller
The SCT1 can be used in two different modes,
either as a temperature controller (‘control
mode’) or as a digital thermometer (‘monitor
mode’).
To use the SCT1 in control mode
Ensure that the SCT1 temperature controller is
connected to the hotplate. Also ensure the
temperature probe is attached to the controller
and immersed in the medium to be controlled
before switching on at the mains.
US150, US152, US152D, UC150, UC152 and
UC152D
Turn the unit on using the On/Off switch at the
side of the unit. The SCT1 will power up in
monitor mode. To turn on the temperature
controller in control mode, turn the heat control
clockwise on the front panel of the hotplate. On
the digital models the LED display will show
“---“.
The SCT1 temperature controller in control mode
is indicated by the illuminated amber contact
thermometer indicator on the front panel of the
hotplate (Figure 3). The LED and display will be
visible on the SCT1 temperature controller panel
(Figure 5) and the current temperature of the
medium will be displayed.
Figure 5 - SCT1 temperature controller
panel
CC162 and SC162
A green LED will be visible on the front panel of
the hotplate. To turn on the temperature
controller, turn the heat control clockwise on the
front panel of the hotplate. The SCT1
temperature controller in control mode is
indicated by the illuminated amber contact
thermometer indicator on the front panel of the
hotplate (Figure 3).The LED and display will be
visible on the SCT1 temperature controller panel
(Figure 5) and the current temperature of the
medium will be displayed.
NB: Turning the heat control clockwise on
the hotplate turns the SCT1 temperature
controller into control mode and cannot be
used to set the hotplate temperature.
To set the temperature in controller mode
Press the + or - key once to instigate the
temperature set point mode. This is indicated by
a flashing LED on the SCT1 temperature
controller display. To select the temperature, use
the ‘+’ or ‘ –‘ keys to obtain the desired
temperature. To set the temperature, release the
key. The LED will cease flashing once the
temperature has been set. With the probe in the
sample, the thermometer LED will illuminate as
follows:
❖
Green – temperature set point not reached
temperature
controller
SCT 1
C
Increase
temperature
set point
Decrease
temperature
set point
Thermometer
LED
