ADOS S.r.l. - Via Lazio 25 - Buccinasco (Mi) 1316-MPT020M03 - Rev.1 T020E installation and instruction manual Pagina 1 di 8
Weight transmitter T020E
Version: T020E-V T020E-A T020E-S
Analog output 0-10V/4-20mA
Serial out RS232/RS485
Installation and instruction manual
display
INC key (increases)
DEC key (decreases)
ENT key (confirms)
ESC key (cancels)
terminasl
With the present document
ADOS S.r.l., Via Lazio 25, 20090 Buccinasco (Mi)
Declares that this T020E fully complies to the essential
requirements
EN 61000-6-4 e EN 61000-6-2
Accordino to EC directive EMC 2004/108/CEE
Power supply 9-48 VDC / VAC
Accuracy 0.01% of the full scale
Linearity 0.01% of the full scale
Thermal Drift 0.005% / °C
Consumption max 250 mA a 12 VDC (3 VA)
Working temperature from –10 °C to +40 °C
Relative humidity
95% not condensated in the case
of version for DIN bars
not relevant to the versions in IP66
box
Load cells excitation
5 V with protection against short circuits
and with reference to internal voltage
Number of cells
connectable
(4 conductors)
4 350 cells
Analog signal from 0.5 to 2.5 mV/V
Conversion rate 55 conversions / second
Display Graduation 10000
Display increments 1-2-5-10-20
Display 5 LED digits
Digital otputs
2 relè 1 CO (SPDT)
3A at 250 VAC or 3A at 30 VDC
Digital input Optoisolated 24VDC
Serial output RS232 or RS485 (selectable)
Analog output 0-10V or 4-20 mA (selectable)
Dimensions
mm 95 x 85 x 65
(version for DIN bars)
mm 110 x 110 x 70
(version in IP66 box)
1. START UP OF THE INSTRUMENT
For a correct start up of the instrument it is necessary to carry out
the following operations:
- set up or check the electrical connections (see paragraph 2)
- set the weighing rate (see paragraphs 3 and 4)
- calibrate the weights (see paragraph 5)
2. ELECTRICAL CONNECTIONS
The instrument must be connected according to the indications in
the following table:
+E + EXCITATION (RED)
-E - EXCITATION (BLACK)
+S + SIGNAL (GREEN)
Load cell wiring
-S - SIGNAL (WHITE)
RS232 RS485 0-10 4-20
A TX A-485 0-10 V 4-20mA
B RX B-485
Output
SGND
Common Common
+I +12/24VDC
Tare input
-I 0VDC
~
9-48 VDC / VAC
Power supply
~
9-48 VDC / VAC
C COMMON relè 1
NC N.C. relè 1
NO N.O. relè 1
C COMMON relè 2
NC N.C. relè 2
Relè outputs
NO N.O. relè 2
In the case where the apparatus uses more than one load cell, the
cells must be wired to a specific junction box (ADOS model 1308),
and the output must be connected to the terminals of T020E.
The use of shielded cable for the wiring of the load cells, the
analog output signal lines and the serial lines is highly
recommended.
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