8
3. Operating controls
Commissioning
➢
Switch on the instrument through the main switch (2)
➢
Display shows
software version, the last set point values and OFF on both displays (if “Start mode” is set
on Stop, see chapter 5)
Stirring
➢
Adjust motors speed set point by turning the speed control knob (3)
➢
Click the knob to start stirring
➢
The speed increases until set point achievement
➢
A microprocessor ensures constant speed even when the viscosity changes (counter-reaction)
➢
Switch off the stirring by clicking the knob
Heating
➢
Adjust heating plate temperature set point by turning the temperature control knob (4)
➢
During all the time of set point adjusting, the temperature set point led (B) is switched on
➢
Click the knob to start heating
➢
Display shows real plate temperature for 3 seconds and temperature set point for 1 second alternatively
➢
When temperature set point is visualized, the relative led (B) turns on
➢
While the instrument is heating, the Heating ON led (A) turns on
➢
Switch off the heating by clicking the knob
➢
When heating function is off and the heating plate temperature exceeds 50 °C, the message “Hot” is
shown on the temperature display until temperature falls below 50 °C
NOTE:
this warning is not active if the instrument is not powered.
NOTE:
in case of black-out, once the power is back the device restarts in the set restarting mode
(see chapter 5
“Strt mode”)
Timer
➢
To access the timer function, click the Timer/autoreverse/lock button (E)
➢
On the displays are visualized
➢
Set the timer turning the speed control knob until the desired value and click to confirm
➢
Timer led (C) turns on
➢
Timer countdown starts when one of the main functions is on or when temperature reaches set point value
(see chapter 5, “Time Strt”)
➢
When countdown is active, timer led flashes
➢
Esc timer menu: a) click twice timer/autoreverse button
b) wait 5 seconds without touching any knob
➢
When timer countdown ends, is shown until operator action.
It’s possible stirring continues if the parameter “time Sped” is ON (see chapter 5)
Autoreverse
➢
To access autoreverse function click twice the Timer/autoreverse/lock button (D)
➢
On the displays are visualized
➢
Set the autoreverse turning the speed control knob until the desired value and click to confirm
➢
The autoreverse led (D) turns on
➢
Autoreverse starts when stirring is on
Lock
➢
Holding the
Timer/autoreverse/lock button (E) for 3 seconds, the instrument will lock it’s settings during
operations.
➢
Unlock the control panel by holding the Timer/autoreverse/lock button (E) for 3 seconds.
➢
If other buttons are clicked while the instrument is locked, the LEDs around the lock button will blink for few
seconds.
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