When option 1 has been chosed, the instrument goes off and the
counting current value is saved. When the power supply is
restored, the timer can will start working from the saved value.
When option 2 has been chosed, in the case of power failure the
display and the output will go off, but the timer will continue to
count. Note that the mode 2 is enabled only if the external battery
is present (see electrical connections).
Under these conditions of operation the display results turned on
but with an inferior brightness to the normal mode
We recommends to disable the battery when it is not necessary.
In case 3 finally, at the missing of power supply, the instrument
stops the counting and does not memorize the reached value, so
that at the returning of power supply the instrument will be in the
reset conditions.
E - CNT EN INPUT OPERATING MODE. Allows the user to select
the operating mode of the Count Enable (CNT EN) external input.
The options are:
1 = Bistable Start/Stop
2 = Bistable Reset-Start/Stop
3 = Monostable Start/Stop
4 = Monostable Reset-Start/Stop
t - U KEY OPERATING MODE: This parameter permits to decide
the operating mode of the frontal U key and the possibilities are:
0 = Key disable
1 = RESET-START/STOP
2 = RESET/START/STOP
3 = RESETonly
6 - PROBLEMS, MAINTENANCE AND WARRANTY
6.1 – CLEANING
It’s raccomanded to clean the instrument only with a cloth welted
with water or with a detergent neither abrasive nor containing
solvents.
6.2 – WARRANTY AND REPAIRS
The instrument is under warranty against construction vices or
defected material, noticed within 12 months from delivery date. The
warranty is limited to the repairs or to the substitution of the
instrument. The eventual opening of the housing, the violation of
the instrument or the wrong use and installation of the product
means the automatic decay of the warranty.
In case of defected instrument, noticed in warranty period or out of
warranty, do contact our sales department to obtain the shipment
authorisation.
The defected product must be shipped to TECNOLOGIC with the
detailed description of the failures found and without any fees or
charge for Tecnologic, safe different agreements.
7 - TECHNICAL DATA
7.1 – ELECTRICAL DATA
Power supply: 12 VDC/VAC, 24, 115, 230 VAC +/- 10%
Frequency AC:
50/60 Hz
Power consumption:
2 VA approx.
Input/s:
2 digital inputs for Count Enable (CNT EN) and Reset
(RES) for voltage-free contacts or voltage signals (the same
voltage supply value).
Output/s:
Up to 2 outputs. Relay SPDT (8 A-AC1, 3 A-AC3 / 250
VAC); or in tension to drive SSR (12VDC/15 mA).
Electrical life for relay outputs:
100000 operat.
Battery for counting without supply
: 9 V (form E) external not
rechargeable battery.
Consumption with battery supply :
9 mA approx.
Voltage inputs absorption:
1 mA Max.
Installation category:
II
Protection class against electric shock:
Class II for Front panel
Insulation:
Reinforced insulation between the low voltage section
(supply and relay outputs) and the front panel; Reinforced
insulation between the low voltage section (supply and relay
outputs) and the extra low voltage section (inputs, SSR outputs);
Reinforced insulation between the extra low voltage section (SSR
outputs) and voltage inputs.
7.2 – MECHANICAL DATA
Housing:
Self-extinguishing plastic, UL 94 V0
Dimensions:
33 x 75 mm,depth 64 mm
Weight:
175 g approx.
Mounting:
Flush in panel in 29 x 71 mm hole
Connections:
2,5 mm
2
screw terminals block
Degree of front panel protection :
IP 65 mounted in panel with
gasket
Pollution situation:
2
Operating temperature:
0 ... 50 °C
Operating humidity:
30 ... 95 RH% without condensation
Storage temperature:
-10 ... +60 °C
7.3 – MECHANICAL DIMENSIONS, PANEL CUT OUT AND
FIXING DEVICE [mm]
TT 34
75
33
5
64
28
CNT
SET
OUT2OUT1
RECOMMENDED
PANEL CUTOUT
29
71
min. 15 mm
min. 12 mm
TYPE 1
PANEL + GASKET
PANEL + GASKET
TYPE 2
BRACKET
TYPE 1
BRACKETS
TYPE 2
86
74
43
31
34
MAX 12 mm
MAX 29 mm
7.4 – FUNCTIONAL DATA
Outputs operating mode: 5 modes for OUT 1: Delayed,
Feedthrough, asymmetric times oscillator with start on or start off
and One cycle Asymmetrical Oscillator Start Off .
4 modes for OUT 2: like OUT1, ON during count, like OUT1 with
time t3 absolute or relative in advance.
Measurement range:
4 times scales: 9999 hrs., 99 hrs. 59 min., 59
min. 59 sec., 99 sec. 99 cent s.
TECNOLOGIC spa - TT 34 - OPERATING INSTRUCTIONS - Vr. 01 - ISTR 06086 - PAG. 6
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