Velp Scientifica AREX-6 DIGITAL Instrucciones De Montaje página 7

3. Operating controls
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Commissioning
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Stirring
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Heating
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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")
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Timer
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Autoreverse
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Lock
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4. External thermometers
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Move the main switch to off position
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Screw the threaded support rod into its seat on the back of the instrument
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Fasten the VTF thermoregulator onto the support rod
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Place the temperature probe in the flask
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Plug the VTF into the dedicated socket on the back of the instrument
VTF (only for
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Switching on the instrument through the main switch, the probe led (A) turns on and display shows OFF
AREX-6 Digital
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Pro)
Select operating temperature on VTF and after clicking temperature control knob, a dashed line (----) appears
on the display
NOTE: while VTF is inserted, it is not possible to set any temperature turning the knob on the instrument.
The plate can heat until the maximum temperature set in the full scale (see chapter 5, "TEMP LIMIT").
It's possible to set the timer on the VTF only.
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Move the main switch to off position
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Screw the threaded support rod into its seat on the back of the instrument
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Fasten the clamp onto the support rod
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Place the temperature probe in the flask
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Plug the probe into the dedicated socket on the back of the instrument
External probe
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Switching on the instrument through the main switch, the probe led (A) turns on and display shows OFF
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Select operating temperature using the temperature control knob
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Click the knob to start heating
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The display shows the real temperature obtained by the probe. Each 3 seconds the temperature set point is
shown on the display and the temperature set point led (C) turns on
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)
Adjust motor 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
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 (C) 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 (C) turns on
While the instrument is heating, the Heating ON led (B) 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
To access the timer function, click the Timer/autoreverse/lock button (F)
On the displays
tI N E
Set the timer turning the speed control knob until the desired value and click to confirm
Timer led (D) 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,
It's possible stirring continues if the parameter "time Sped" is ON (see chapter 5)
To access autoreverse function click twice the Timer/autoreverse/lock button (F)
On the displays
A.rEu
Set the autoreverse turning the speed control knob until the desired value and click to confirm
The autoreverse led (E) turns on
Autoreverse starts when stirring is on
Holding the Timer/autoreverse/lock button (F) for 3 seconds, the instrument will lock it's settings during
operations.
Unlock the control panel by holding the Timer/autoreverse/lock button (F) for 3 seconds.
If other buttons are clicked while the instrument is locked, the LEDs around the lock button will blink for few
seconds.
are visualized
H H.N N
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is shown until operator action.