Stuart SCT1 Instrucciones De Funcionamiento página 5

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
❖ Amber – liquid at set point
❖ Red – liquid hotter than set point
NB: To obtain accurate temperature control,
the minimum temperature set point must be
at least 15°C above the surrounding ambient
temperature.
To use the SCT1 in monitor mode
US150, US152, US152D, UC150, UC152 and
UC152D
To use the SCT1 controller in monitor mode
together with the hotplate, ensure the unit is
switched off using the mains control switch at
the side. Hold down both the '+' and ' –' keys
simultaneously on the SCT1 temperature
controller and turn the mains switch to 'ON'.
Once the digital display illuminates, release the
keys on the SCT1 temperature controller. Monitor
mode will be indicated by a red flashing LED at
the bottom right hand corner of the display of
the SCT1 temperature controller. The amber
control LED on the front panel of the hotplate
will NOT be illuminated in monitor mode.
CC162 and SC162
To use the SCT1 controller in monitor mode,
ensure the hotplate is switched off by turning the
heat control on the hotplate anticlockwise to the
'OFF' position. Hold down both the '+' and ' –'
keys simultaneously on the SCT1 temperature
controller, and turn the heat control 'ON'. Once
the digital display illuminates, release the keys on
the SCT1 temperature controller. Monitor mode
will be indicated by a red flashing LED at the
bottom right hand corner of the display of the
SCT1 temperature controller. The amber control
LED on the front panel of the hotplate will NOT
be illuminated in monitor mode.
NB: When in monitor mode, the SCT1
temperature controller operates as a digital
thermometer only, and no longer controls
the temperature of the medium in use. The
hotplate temperature can now be manually
adjusted to the desired setting.
To change from monitor mode to control
mode
To change from monitor mode to controller
mode, press either the '+' or' –' key on the SCT1
temperature controller once. The unit will revert
to controller mod, and will be indicated by the
illuminated amber contact thermometer indicator
visible on the front panel of the hotplate. The red
LED on the bottom right hand corner of the SCT1
temperature controller display will extinguish
when the unit is in controller mode.
NB: For safety reasons, when reverting from
monitor to controller mode the SCT1
temperature controller will default to the set
point temperature of 20°C.
Troubleshooting
In the event of malfunction the SCT1
temperature controller can self-diagnose certain
fault conditions. In this case the display will show
a message in the form of 'Err XX' where XX is
either a single or double digit code, which
identifies the fault.
Error
code Fault condition
Err 1 Thermometer not
calibrated
Err 2 Electronic fault
Err 4 Probe plug removed
in control or monitor
mode
Err 8 Probe out of sample
when in control
mode
Err 16 Ambient temperature
inside hotplate too
high (controller
attached)
Remedy
Return to factory
Return to factory
Reconnect probe.
Continuing error
code indicates
hotplate fault -
return to factory
Replace probe in
sample
Switch off at
'mains' and allow
to cool
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