Tecnologic TT 73 Page 2 Operating Instructions Manual Download

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2 - Key DOWN

: Used to decrease the values or to select

parameters

3 - Key UP

: Used to increase the values or to select parameters

4 - Key T (Start/Stop)

: Used to Start, Stop or reset the count

5 - Led OUT 1

: It indicates when the output OUT1 is on or off.

6 - Led OUT 2

: It indicates when the output OUT2 is on or off.

7 - Led separator

: It indicates the separation between hours and

minutes, minutes and seconds or seconds and cents.

8 - Led SET/CNT

: Signalize the set point or the parameters

programming mode (flashing fast), the count on (flashing each
second), the count stopped (on) or reset mode (off).

2 - PROGRAMMING

2.1 – SET POINTS PROGRAMMING

The instrument permits to program up to 3 time sets:

“t1”, “t2”,

“t3”.

To program this times do proceed as follows :
Pushing key P and keeping it pushed for 1 sec. approx., the display
will visualize

“t1”

and led SET/CNT will blink rapidly.

Releasing the key, on the display will be visualized the programmed
Set Point “t1”.
To modify it, work on keys UP, to increase the value or on key
DOWN, to decrease it.
If the programmed functioning mode require the set “t2” (F1 = 3, 4
or 5), for programming this pressing key P again and the display will
show

“t2”.

Releasing the key, on the display will be visualized the programmed
Set Point “t2” and will be possible to modify it by the key UP or
DOWN.
If the programmed functioning mode require the set “t3” (F2 = 3 o
4), for programming this pressing key P again and the display will
show

“t3”.

Releasing the key, on the display will be visualized the programmed
Set Point “t3” and will be possible to modify it by the key UP or
DOWN.
The outgoing from the set points programming it’s automatically
obtainable not working on any key for 5 sec. approx. or pressing
only one time the key T, thus the counting value willl again be
displayed.
The programming of the set times is always possible, both with
counting on or off.

2.2 – PARAMETERS PROGRAMMING

To have access at the functioning parameters, it’s necessary to
push key P and keep it pushed for 5 sec. approx.
After 4 sec. will appear the label of the first parameter ("F1").
Now it possible to release key P and it will appear the value
programmed for parameter "F1".
To modify this value work on keys UP or DOWN.
Once the desired value has been programmed, pushing again key P
the display will show the label of the successive parameter.
Releasing then key P, it will appear the value programmed for that
parameter which can be modified working on keys UP and DOWN.
Pushing and releasing key P it’s possible to visualize all the
parameters labels (when key is pushed) and the relative
programming (when key is released) one after the other.
The outgoing from the parameters programming it’s obtainable not
working on any key for 20 sec. approx. or pressing only one time the
key T, thus the counting value willl again be displayed.
P.A.: During the counting is not possible to enter in the parameters
programming mode.

2.3 – PARAMETERS LOCK

It’s possible to lock the access at the programming parameters with
the following procedure :
Switch off the instrument, push key P and keep it pushed while the
instrument is switched on again.
After approx. 5 sec. on the display will appear

"uL"

(unlock) which

indicates that the parameters are accessible.
Keeping pushed key P and pushing key DOWN it will appear

"Lo"

(lock) which indicates that the parameters are not accessible.
Release key P to exit from this modality.

The display will go back to the normal functioning, the parameters
will not be accessible anymore and it will only be possible to modify
the Set Point.
To have again access at the parameters, repeat the same
procedure pushing key P and selecting "uL" ; finally go out from the
parameters lock modality.

3 - INSTALLATION AND USE ADVICES

3.1 – USE ALLOWED

The instrument has been projected as measure and
control device, built according to EN61010-1 for the
altitudes operation until 2000 ms.
The use of the instrument for applications not
expressly allowed by the above mentioned rule has

to foreseen proper protection devices.
The instrument CAN’T be used in environments with dangerous
atmosphere (flammable or explosive) without a proper protection.
It has to be reminded that the user has to take care that the
electromagnetic rules are being respected also after the instrument
installing, eventually using proper filters.
Whenever a failure or a bad functioning of the instrument may
cause dangerous situations or damage to people, things or animals
it has to be reminded that the plant has to be equipped with
additional electromechanical devices in order to grant the safety.

3.2 – MECHANICAL MOUNTING

The instrument, in DIN case 72 x 72 mm, is designed for flush-in
panel mounting.
Make a hole 66,5 x 66,5 mm and insert the instrument, fixing it with
the provided special brackets.
We recommend to mount the gasket to obtain the front protection
degree as declared. Do avoid to place the instrument in ambient
with very high humidity or dirt that may create condensation or
introduction into the instrument of conductive substances.
Ensure the adequate ventilation to the instrument and avoid the
installation within boxes where are placed devices which may
overheat or have as a consequence the instrument’s functioning at
higher temperature than allowed and declared.
Connect the instrument as far as possible from source of
electromagnetic disturbances so as motors, power relays, relays,
electrovalves,etc.

3.3 – ELECTRICAL CONNECTIONS

Carry out the electrical wiring connecting only one wire for each
terminal , according to the following diagram, checking that the
power supply is the same as indicated on the instrument and the
loads current is not higher than the maximum current admitted.
The instrument, being a built in equipment with permanent
connection into a cabinet, is not equipped neither with switches nor
with internal devices protecting from overcurrent : the installation
shall employ a two-phase circuit-breaker, placed as near as
possible to the instrument, located in a position easily reachable by
the user and marked as instrument disconnecting device.
It's recommended, furthermore, to properly protect all the electric
circuits connected to the instrument, with devices (ex. fuses)
proportionate to the circulating currents.
It's strongly recommended to use cables with proper insulation,
according to the working voltages and temperatures.
Furthermore, the input cable of the probe has to be kept separate
from line voltage wiring. If the input cable of the probe is screened, it
has to be connected on the ground with only one side.
When you choose the "b" parameter with option 2 (timer goes on
operating in case of power failure) is necessary to check that the
inside battery is present and enable.
With the purpose to prolong its duration it recommends him to
disconnect the battery when it is not necessary to the operation.
Finally, it is advisable to check that the parameters are those
desired before connecting the outputs to the actuators in order to
avoid plant anomalies which may cause injuries to people, things or
animals.