5. Setting mode
Press both knobs for 3 seconds to enter into the setting mode when heating and stirring are off.
Clicking the Timer/autoreverse button (F) it is possible to pass from one of the following parameter to the next ones:
Parameter shown
Display 1
Display 2
TENP
LINt
SPEd
LINt
Strt
NOdE
CtrL
tyPE
PrOb
AlAr
PrOb
CAL
tINE
Strt
tINE
SPEd
ANb.t
CAL
COun
NOtO
COun
HEAt
rSEt
Click the stirring control knob to visualize the set value. Turn the knob to set the new value and click to confirm.
To esc setting mode wait 10 seconds without touching any knob or push both knobs at the same time.
* The temperature control function of the heating plate can also be used as a safety thermostat. In this case the maximum temperature of
the heating plate will not exceed the full scale temperature set on the AREX-6 Digital/Digital PRO meaning that a longer heating time is
required in order to reach the temperature set with VTF or external probe inserted, but reducing temperature oscillation at set point value.
6. Error messages
When the display shows an error message, the stirring and heating functions stop automatically. To remove the error message,
disconnect the instrument from the power supply.
Error code
Cause
AL1
Overtemperature (T > 430 °C)
AL2
Excessive heating time
The stirring system doesn't run correctly
AL3
Overtemperature of the external probe (T > 310 °C) – (with probe inserted)
AL4
AL5
Overtemperature of the safety probe (T > 430 °C)
AL6
Slow temperature increase read by the external probe
AL7
Fast temperature decrease read by the external probe
If an error message appears on the display, please contact VELP Scientifica's technical service department.
Default
Range
value
370
OFF - 50 - 370
1700
100 - 1700
StOP
StOP - run
FInE – FASt
FInE
On
On - OFF
0.0
-10.0 ÷ 10.0
SnAP
SnAP - SEtP
OFF
On - OFF
0.0
-10.0 ÷ 10.0
nO
YES - nO
Set full scale temperature:
➢
It limits the maximum value of temperature set point
for the heating plate* (from 50 to 370°C step 10°C)
➢
If "OFF" is set, it is not possible to perform any action
with the temperature control knob
Set full scale speed:
➢
It limits the maximum value of speed set point for the
motor (from 100 to 1700rpm, step 100rpm)
Set starting mode:
➢
Stop: when the instrument is switched on through the
main switch, OFF is visualized on both displays
➢
Run: when the instrument is switched on, it restarts
to work with the last set points set
Set control temperature with external probe:
➢
Fine: slow temperature set point reaching. Overshoot
optimized
➢
Fast: fast temperature set point reaching. High
overshoot
Set external probe safety:
➢
If "on" it gives AL6 alarm when a slow temperature
increase is detected by the external probe. This
function is active in case of:
-
Probe temperature < 50°C
T set point – T probe > 5°C
-
➢
If "on" it gives AL7 alarm when a fast temperature
decrease is detected by the external probe.
Alignment external probe:
➢
It allows external probe temperature alignment to a
reference thermometer
Set start timer countdown:
➢
Snap: timer countdown starts as soon as one main
function (Temperature/Speed) is on
➢
SetP: timer countdown starts when temperature set
point is reached
Continue stirring after timer end:
➢
If "on", stirring continues after timer end
Heating plate probe calibration:
➢
It allows plate ambient temperature alignment to a
reference thermometer.
Running time. Days (24H):
➢
Motor and plate working time are displayed in hours
until 9999 hours (around 416 days).
After, they are shown in days starting from 417 and a
dot turns on as following, to differentiate days from
hours
Reset:
➢
It allows to restore default setting parameters
8
Description
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