Dini Argeo DGT1S User manual

www.diniargeo.com
DGT1S
Digital weight transmitter
ENGLISHUSER MANUAL
For DGT1S with firmware release minimum 08.03

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Contents
Introduction 7
Transmitter installation 8
Installation requirements  8
Electrical precautions  9
Earthing of the system  11
Technical features  14
Load cell installation  15
Wiring diagrams 16
DGT1S  16
DGT1SAN  17
Display and function of the keys 18
Quick menu 18
Advanced programming menu 19
Access to the menu and saving the changes  19
Function of the keys in the menu  19
Block diagram of the menu  20
On / Off 22
Theoretical calibration 23
Calibration with sample weights 24
Manual calibration 26
Manual calibration 26
Quick zero calibration (pre-tare zeroing) 26

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Filter and stability 27
Filter adjustment  27
Stability detection sensitivity  27
Display updating frequency  28
Gravity 28
Zeroing parameters 29
Auto-zeroing on ignition  29
Maximum percentage of manual zeroing  29
Zero tracking  29
Restoring zero  30
Semi-automatic zeroing  30
Tare functions and parameters 31
Tare mode  31
Semi-automatic tare  31
Predetermined tare  31
Clearing the tare  31
Alibi memory 32
Enabling the alibi memory  32
Saving a weighing operation in the alibi memory  32
Reading the alibi memory  33
Initialising the alibi memory  33
Use functions 34
High resolution  34
Peak detection  34
Converting units of measurement  34
Alibi memory  34
No function  34
Input configuration 35
Output configuration 36
Analog output configuration 37
Serial communication configuration 39
Selection of the PC serial port  39

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Configuration of the printer port (COM.PRN) 40
Transmission mode  40
Baud rate, parity, data bits, stop bits  41
Printer power on mode  41
CTS signal  41
Print language  41
Reactivation of printing  42
Configuration of the PC port (COM.PC) 42
Transmission mode  42
Baud rate, parity, data bits, stop bits  43
Communication protocols 44
Standard string  44
Extended string  44
Serial commands  45
Diagnostics 48
Cells / converter test  48
Firmware release  48
Serial number  48
Display  48
Keypad  48
Serial ports  49
CTS signal  49
Inputs  49
Outputs  49
Analog output  49
Programming the Setpoints 49
Restoring factory settings 50
Date and time setting 50
Alarms 51

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Dear Customer,
Thank you for purchasing a DINI ARGEO product.
This manual contains all the instructions for a correct installation and commissioning of the DGT1S digital weight transmitter.
While thanking you for purchasing this product, we would like to draw your attention to some aspects of this manual.
This booklet provides useful information for the correct operation and maintenance of the scale to which it refers; it is therefore essential
to pay the greatest attention to all those paragraphs that illustrate the simplest and safest way to operate.
It is recommended that you carefully follow the instructions for programming the weight transmitter; performing actions not indicated in
this manual could compromise the proper functioning of the scale.
The utmost care has been taken in compiling this manual, but reports of any inaccuracies are always welcome.
The instrument is covered by warranty and MUST NOT BE TAMPERED WITH BY THE USER under any circumstances.
Any attempt at repair or modification may expose the user to the danger of electric shock and voids any warranty conditions, relieving
the Manufacturer from all liability.
Any problem with the product must be reported to the manufacturer or to the retailer where it was purchased.
In any case, always TURN OFF THE POWER SUPPLY before any installation or repair operation.
Introduction

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Transmitter installation
Installation requirements
Observe the following conditions for correct installation of the transmitter and of the load receiver:
• Flat, level support surface.
• Stability and absence of vibrations.
• Absence of aggressive dusts and vapours.
• Absence of draughts.
• Make sure that the platform is levelled or that the load cells are evenly supported.
• Moderate temperature and humidity (15°C - 30°C and 40% - 70%).
• Do not install in an environment where there is a risk of explosion.
• All transmitter connections must be made in accordance with applicable regulations in the area and environment of installation.
Observe the electrical precautions listed in the section “Electrical precautions”.
• Ensure that it is correctly earthed, see the relevant section “Earthing of the system”.
• Do not perform welding when the load cells have already been installed.
• If necessary, use watertight sheaths and fittings to protect the load cell cables.
• Any junction boxes must be watertight.
• Anything not expressly described in this manual constitutes improper use of the equipment.

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Electrical precautions
• Use a regulated mains supply within ± 10% of the rated voltage.
• The electrical protections (fuses, etc.) are the responsibility of the installer.
• Observe the recommended minimum distances between cables of dierent categories (see table on page 10).
• The following cables must comply with the maximum permissible lengths (see table on page 10), they must be shielded and must
beinserted alone in metal conduits or pipes:
- the load cell extension cables;
- the signal amplifier cables;
- the cables for connecting the serial ports;
- the analog output cables.
• The cell or amplifier cables must have an independent input in the electrical panel. They must be connected (if possible) directly to
the terminal block of the transmitter without passing through the conduit with other cables.
• Fit “RC” filters:
- on the contactor coils;
- on the solenoid valve coils;
- on all devices that produce electrical interference.
• If condensation can occur inside the weight transmitter, it is advisable to keep the equipment powered at all times.
• Connections to load cells and any external device must be as short as possible.
• The cable ends (connectors, leads, terminals, etc.) must be installed correctly; the cable shielding must be kept intact until close to
the connection point.
• If the transmitter is placed inside an electrical panel, a shielded cable must also be used for the power supply.

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Category I Category II Category III Category IV
Distance
≥ 100 mm
≥ 200 mm
≥ 500 mm
≥ 100 mm
≥ 500 mm
≥ 500 mm
Classification
Fieldbus, LAN network
(PROFIBUS, Ethernet,
Devicenet...).
Shielded data cables
(RS232...).
Shielded cables for
analog digital signals
< 25 V (sensors, load
cells...).
Low voltage power sup-
ply cables (< 60 V).
Coaxial cables.
DC supply cables with
voltage > 60 V and <
400 V.
AC supply cables with
voltage > 25 V and <
400 V.
Power supply cables
with voltage > 400 V.
Telephone cables.
Any cable subject to
lightning danger.
Load cell RS232 RS485 Analog output
50 metres with
6 x 0.25 mm2cable;
100 metres with
6 x 0.5 mm2cable.
15 m with baud rate up
to19200.
1200 m with shielded 2 x
24 AWG twisted pair with
outer braid + aluminium
strip.
CURRENT:
100 metres with 2 x 0.25 mm2cable;
150 metres with 2 x 0.5 mm2cable;
300 metres with 2 x 1 mm2cable.
VOLTAGE:
50 metres with 2 x 0.25 mm2cable;
75 metres with 2 x 0.5 mm2cable;
150 metres with 2 x 1 mm2cable.
RECOMMENDED DISTANCES AND CABLE CLASSIFICATION
MAXIMUM ALLOWED LENGTHS

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Earthing of the system
For correct earthing and optimal system operation, the load cells, junction box, if any, and weighing structure must be earthed.
LOAD CELLS AND JUNCTION BOX
The connection must be made by connecting the earth cables to the earth bar (cables that must have a cross-section of at least 16 mm2);
finally, connect the earth bar to the earth post with a cable having a cross-section of at least 50 mm2.
EXAMPLES:
• If the load cells are connected to the transmitter through a junction box, the cable shield from the transmitter and the cell cable shields
must be connected to the earth socket of the junction box (refer to the junction box manual) and the junction box must be earthed using
a copper cable with a cross-section of not less than 16 mm2.
• If the load cells are connected directly to the transmitter (without using the junction box), the cell cable shields must be connected to the
earthing point (or earth bar).
• If the weighing system involves large and/or outdoor structures (weighbridges, silos, etc.) and the distance between the junction box and
the weight transmitter is greater than 10 m, connect the cell cable shields to the earth socket in the junction box.
WEIGHING STRUCTURE
Earth the weighing structure and/or any unconnected structures (e.g. silos that release material onto the weighing structure) using cables
with a cross-section of not less than 16 mm2.
Also connect the upper part with the lower part of each cell by means of a copper braid with a cross-section not less than 16 mm2(refer
to the earthing examples on page 12 and page 13).
SERIAL CABLES AND CONNECTED INSTRUMENTS
Connect the serial cable shield to the earthing point (or earth bar) inside the panel. To avoid any undesired eects, the earth reference
ofthe connection cable, power supply and transmitter must be at the same potential.
GENERAL NOTES:
• All earth cables must be of suitable length, so as to obtain an overall resistance of the earthing system of less than 1 .
• If the weighing system involves large and/or outdoor structures (weighbridges, silos, etc.):
- the earth connection must be made by connecting the earth cables to an earth bar and the earth bar to the earth post
with a cable having a cross-section of not less than 50 mm2;
- the thickness of the cables must be greater (50 mm2instead of 16 mm2and 100 mm2instead of 50 mm2), because the
voltages at stake are greater (e.g. lightning);
- the earth post must be placed at a distance of at least 10 m from the structure.
• If the load receiver is more than 10 m from the transmitter, we recommend using the SENSE line and load cells equipped
with a (SENSE) compensation circuit.

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EXAMPLE OF EARTHING OF A WEIGHBRIDGE
Load cell bypass jumper
Weighbridge
Weight transmitter
Load cell
Earth cables
Ø 8 - sec. 50 mm2
Ø 11.3 - sec. 100 mm2
Earth post posi-
tioned under or
near the weigh-
bridge
Drilled copper plate positioned
on the side wall
Junction box placed on
the side wall of the pit
Weighbridge

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Load cell
Protective earth
bypass for the
load cell
EXAMPLE OF EARTHING OF A SILO

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Technical features
POWER SUPPLY 12 - 24 Vdc LPS or with class 2 power supply.
MAXIMUM ABSORPTION
(without load cells)
DGT1S: 100 mA at 12 V / 70 mA at 24 V (2 W);
DGT1SAN: 185 mA at 12 V / 90 mA at 24 V (2.5 W).
OPERATING TEMPERATURE From -15°C to +40°C.
DISPLAY DIVISIONS 10000e, 2 x 3000e for legal weighing, expandable up to 800,000 for internal use (with a
minimum cell signal of 1.6 mV/V).
SAMPLING SPEED Up to 400 conv. / sec.
MINIMUM VOLTAGE PER DIVISION 0.3 V (approved instrument); 0.03 V (non-approved instrument).
COUNTING RESOLUTION 1,500,000 points (with input signal 3 mV/V).
DISPLAY 6 digits, h 13 mm.
SIGNALS 6 status indicator LED lights.
KEYPAD 5 keys.
TARE FUNCTION Subtraction possible over the entire range.
LOAD CELL POWER SUPPLY 5 Vdc ± 5%, 120 mA (max 8 cells of 350 ).
LOAD CELL CONNECTION 6 wires with sense.
CONNECTABLE CELLS Up to 8 350  cells.
CASE Made of plastic, suitable for DIN rail or wall mounting.
SERIAL OUTPUTS 1 RS485 bidirectional port;
1 configurable RS232 bidirectional port for connection to printer;
OUTPUTS / INPUTS 2 fotomosfet outputs NO or NC, configurable as programmable weight thresholds:
48 Vac 0.15 A max (or 60 Vdc 0.15 A max);
2 configurable inputs (optocouplers): 12 - 48 Vdc;
Input reading and output update time: 1 msec; (DGT1SIO version)
Opto-isolated analog output with 16 bits, optionally 4 - 20 mA, 0 - 5 Vdc or 0 - 10 Vdc
(DGT1SAN version). The maximum applicable resistance on the current output is 350 
while the minimum applicable resistance on the voltage output is 10 k.
LOAD CELL SENSITIVITY Maximum sensitivity of the connectable load cells: 6 mV/V.

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1 4 5 8 1 4 5 8
RJ45 OUT
RS485
RJ45 IN
RS485
B(-) A(+)
B(-) A(+)
10
GND
RS232
+-
12 / 24 Vdc
1 2
14 1316 15 12 11
SIG + SIG - SEN + SEN - EXC + EXC -
LOAD CELL
10
GND
RS232
14 1316 15 12 11
SIG + SIG - SEN + SEN - EXC + EXC -
LOAD CELL
1 4 5 8 1 4 5 8
RJ45 OUT
RS485
RJ45 IN
RS485
B(-) A(+)
B(-) A(+)
10
GND
RS232
+-
12 / 24 Vdc
1 2
14 1316 15 12 11
SIG + SIG - SEN + SEN - EXC + EXC -
LOAD CELL
10
GND
RS232
14 1316 15 12 11
SIG + SIG - SEN + SEN - EXC + EXC -
LOAD CELL
USER_MAN_ENG_DGT1S_V8
Load cell installation
After carrying out the instructions for the platform or load receiver, the shielded cable from the cell(s) must be properly connected to the
terminal blockof the transmitter (CELL; see section “Wiring diagrams”).
The transmitter has one channel (CELL) for 6-wire connection to load cells (using the SENSE).
The SENSE allows you to compensate for any voltage drop on the section of cable connecting the transmitter to the load receiver.
It is especially useful when the distance between the transmitter and the load receiver is more than 10 metres.
6-WIRE CONNECTION 4-WIRE CONNECTION

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1 4 5 8 1 4 5 8
RJ45 OUT
RS485
RJ45 IN
RS485
B(-) A(+)
B(-) A(+)
8910
GND
RX
TX
RS232
IN 2
7
IN 1
6
RL2
4
RL1
3
+-
12 / 24 Vdc
1 2 5
COM
LOAD CELL 1
14 1316 15 12 11
E +
E -
+
+
-
-
S+ S-
SIG + SIG - SEN + SEN - EXC + EXC -
LOAD CELL
J1
CAL
DGT1S
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Wiring diagrams
Internal use

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1 4 5 8 1 4 5 8
RJ45 OUT
RS485
RJ45 IN
RS485
B(-) A(+)
B(-) A(+)
121314
GND
RX
TX
RS232
IN 2
7
IN 1
6
RL2
4
RL1
3
9 811 10
ANALOG
V-
V+
I-
I+
+-
12 / 24 Vdc
1 2 5
COM
LOAD CELL 1
18 1720 19 16 15
E +
E -
+
+
-
-
S+ S-
SIG + SIG - SEN + SEN - EXC + EXC -
LOAD CELL
J1
CAL
DGT1SAN
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Internal use

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0 ~ N
C
F
1 2
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Display and function of the keys
Symbol Description
Semi-automatic zeroing.
Decreases the selected digit.
Semi-automatic tare.
Increases the selected digit.
Activates the function.
Selects the digit to be changed.
Confirms a value.
Prints / Transmits data.
Turning o the transmitter.
Symbol Description
Gross weight on zero.
Unstable weight.
A tare is active.
A special function is active.
Output 1 is active.
Output 2 is active.
Quick menu
The transmitter is equipped with a quick menu, through which you can program the main parameters of the scale.
To enter the quick menu, follow the procedure below:
1. Reboot the transmitter.
2. Press the key when the display shows 8 8 8 8 8 8 .
For further information, refer to the transmitter Quick Start Guide.

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Function of the keys in the menu
In the menu description on the following pages the symbol indicates repeated pressing of the key until the parameter
indicated is reached.
Advanced programming menu
Access to the menu and saving the changes
HOW TO EXIT THE SETUP AND SAVE CHANGES
1. Press several times, until the display shows “ s a v e ?”.
2. Press to save or to exit without saving.
1. Reboot the transmitter.
2. Press the key when the display shows 8 8 8 8 8 8 .
Previous parameter.
Next parameter.
Access the parameter / confirm setting.
Exit a parameter (without saving).
FUNCTION OF THE KEYS WHEN ENTERING NUMBERS
Increases the selected digit.
Decreases the selected digit.
Selects the next digit.
Confirms the value.
Resets the value.
If pressed again, exits entering.
The advanced menu contains all the transmitter configuration parameters for the most advanced adjustments.

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888888
7
8 8 8 8 8 8
i n p . 0 2
o u t . 0 2
i n p . 0 1
o u t . 0 1
2
2
1
1
f u n c t
R e a c t
C l o C k
t a r e
d s p . r f
i n p u t s
o u t p u t
s e r i a l
i n i . a l
r s . z e r o
1
2
3
4
2
5
6
3
4
5
f . m o d e
A
C o n f i G
1
1
s e t u p
B
a n . o u t
d i a G
C
8 d e f a u
C o m . p r n
2
p C . s e l
1
C o m . p C
3
...
f i l t . 5 0
MENU ACCESS: SAVING THE PARAMETERS:
Press the key during the start-
up procedure.
Press the key several times, until the display shows
S A V E ? . Press the key to confirm.
Complete menu on pages
24 - 25
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Block diagram of the menu
Continued on page 21.
Display updating frequency (page 28).
Operating mode (page 34).
Reactivating printing (page 42).
Tare (page 31).
Date and time (page 50).
Zero restore (page 30).
Digital inputs (page 35).
Digital outputs (page 36).
Analog output (page 37).
Restore factory settings (page 50).
Diagnostics (page 48).
Selection of the PC serial port (page 39).
Printer port configuration (page 40).
PC port configuration (page 42).
Alibi memory initialisation (page 33).