Ascon Tecnologic - Y39W Line - Operating Instructions - Pag. 4
2.5
Reset Parameters to Default Value
The instrument allows the reset of the parameters to those
values programmed in factory as default.
To restore the default parameters value, set the value
-48
at
r.p
password request.
Therefore, to make the reset to the default parameters, en-
able the Password using the
t.PP
parameter so that the
r.p
setting is requested, at this point insert
-48
instead of the
programmed access password.
Once confirmed the password with the key, the display
shows “
---
” for 2 s after which the instrument resets all the
parameters to the factory default setting.
2.6
Keyboard Lock Function
On the instrument it is possible to completely lock the key-
board. This function is useful when the controller is installed
in an accessible area and changes must be avoided.
To activate the keyboard lock it is enough program the pa-
rameter
t.Lo
to a value different than
oF
.
The
t.Lo
value is the keys inactivity time after which the in-
strument automatically locks the keyboard. Therefore, press-
ing no buttons for the time set at
t.Lo
, the normal functions of
the keys are automatically disabled.
When the keyboard is locked, if any of the key is pressed,
the display shows
Ln
to indicate that the lock is active.
To unlock the keyboard it is enough to contemporarily press
+ keys and keep them pressed for 5 s, after which the
label
LF
appears on the display and all the key functions will
be available again.
3 USAGE WARNINGS
3.1
Admitted Usage
m
The instrument has been projected and manufactured
as a measuring and control device to be used accord-
ing to EN60730-1 at altitudes operation below 2000 m.
The use of the instrument for applications not expressly
permitted by the above mentioned rule must adopt all the
necessary protective measures.
The instrument
MUST NOT BE USED
in dangerous (flamma-
ble or explosive) environments without adequate protections.
The instrument used with NTC 103AT11 probe (identifiable by
the printed code “103AT-11” visible on the sensor part) is com-
pliant with standard EN 13485 (“Thermometers for measuring
the air and product temperature for the transport,storage and
distribution of chilled, frozen, deep-frozen/quick-frozen food
and ice cream”) with the following classification:
[EN13485 air, S, A, 2,- 50°C +90°C]
Remember that the end user must periodically check and veri-
fy the thermometers in compliance with standard EN 13486.
The installer must ensure that EMC rules are respected, also
after instrument installation, if necessary using proper filters.
4 INSTALLATION WARNINGS
4.1
Mechanical Mounting
The instrument, in case 78 x 35 mm, is designed for flush-
in panel mounting. Make a hole 71 x 29 mm and insert the
instrument, fixing it with the provided special brackets.
In order to obtain the declared front protection degree, use
the screw type bracket (optional).
Avoid placing the instrument in environments with very high
humidity levels or dirt that may create condensation or intro-
duction of conductive substances into the instrument.
Ensure adequate ventilation to the instrument and avoid
installation in containers that house devices which may
overheat or which may cause the instrument to function at a
higher temperature than the one permitted and declared.
Connect the instrument as far away as possible from sourc-
es of electromagnetic disturbances such as motors, power
relays, relays, solenoid valves, etc..
4.2
Dimensions
[mm]
4.2.1 Mechanical Dimensions
Y39W
35
78
28
12.2
14.5
8
6
64
4.2.2 Panel Cut-Out
86 min.
41 min.
71
+0.6
29
+0.6
