Weight indicator with 4 set points settable over the entire measuring range, logic outputs on four voltage free contacts (115Vac / 30Vdc, 0.5 A). For equal or greater weight values of setted set-point the contacts will be closed. The opening or closing of the contacts will take place taking into account the hysteresis values set in the constants. The instrument has 3 inputs with the following functions:
- Zero weight;
- Sending a string with the weighing data to a printer 24 column
- Net / gross weight or Peak function.
The calibration of the instrument can be done by setting constants parameters in the instrument setup or using a weight sample.

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Indicator TLA

Technical Specifications

Power supply24 V dc 15 %
Max power consumption5 W
IsolationClasse II
Installation CategoryCategory II
Operating temperature-10 / +50 C (14 / 122 F) Humidity Maximum 85% non-condensing
Storage temperature-20 / +60C (-4 / +140F)
DisplayNumeric 8-digit, 7-segment LED (h 14 mm)
Led8 3 mm indicator LEDs
Keyboard5 membrane buttons
Overall dimensions106 x 60 x 110 mm / 4.17 x 2.36 x 4.33 in (l x h x p) incluse morsettiere
MountingDIN-rail (EN 60715) according to DIN 43880
Case materialSelf-extinguishing PPO
ConnectionsRemovable screw terminal blocks, 5 mm pitch
Power supply load cells5 V dc / 120 mA (maximum 8 cells with 350 Ω in parallel) protected against short-circuit
Input sensitivity≥ 0,02 μV
Linearity< 0.01% of full scale
Temperature deviation<0,0003% of full scale/C
Internal resolution24 bit
Weight resolutionUp to 99,999 divisions
Measuring rangeFrom -3.9 mV/V to +3.9 mV/V
Digital filter0.2 Hz a 50 Hz
Number of weight decimals0 to 4 decimal places
Zero / FS CalibrationAutomatic (theoretical) or executable through buttons
Analog output in tensionOptional: 0-10 V / 0-5 V
 Resolution16 bits
 CalibrationBy push-buttons
 Impedance≥ 10 kΩ
 Linearity< 0.03% of full scale
 Temperature deviation<0,001 % of full scale/ C
Analog output under currentOptional: 0-20 mA / 4-20 mA
 Resolution16 bits
 CalibrationBy push-buttons
 Impedance≤ 300 Ω
 Linearity< 0.03% of full scale
 Temperature deviation< 0.001% of full scale / C
Logical output4 opto-relays (NO contact) maximum 24 V alternating current / 24 V direct current, 60 mA each
Logical input3 opto-isolated at 12 / 24 V dc PNP
Serial portCOM1: Rs232c half duplex COM2: Rs422/Rs485 half duplex.
 Max. cable length15m (Rs232c), 1000m (Rs422 e Rs485)
 Serial protocolsASCII, Printer, EPSON, Modbus
 Baud rate1200, 2400, 4800, 9600, 19200, 38400, 115200
Program code memory60 Kbytes FLASH reprogrammable onboard RS232
Data memory4 Kbytes
Conforms to standardsEN61000-6-2, EN61000-6-3, EN61010-1, EN45501
For the complete and latest technical specifications, please refer to the technical data sheet which can be downloaded here:
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Connections

TypeTLA terminal block (upper)
LengthND
1Load cell power supply -
2Load cell power supply +
3Load cell ref +
4Load cell ref -
5Load cell signal -
6Load cell signal +
7+ Analog current output
8+ Analog voltage output
9- Analog output
10Input 1
11Input 2
12Input 3
13Common input
14Output 1
15Output 2
16Output 3
17Output 4
18Common Outputs
TypeTLA terminal block (lower)
LengthND
19TX+ RS 422
20TX- RS 422
21RX+ RS 422
22RX- RS 422
23CTS
24RX RS 232
25TX RS 232
26SGND
27Shield serial cables
28+ 24 Vcc
29GND
30NC
31NC
Connections  Indicator TLA

MOUNTING OF THE LOAD CELL

General precautions to be followed in the installation and assembly of load cells:

  • Follow the direction of application of force on the load cell
  • Do not exceed the limits of the temperature as indicated in the data sheet
  • Do not remove labels from the load cell
  • Adequately protect the cables with sleeves or channels
  • Carry out on each load cell a ground connection with suitable cable, shunt on mounting accessories
  • Do not carry out any welding on the mechanical structure after mounting the load cell
  • Avoid or reduce to a minimum level any mechanical constraints between the rigid structure and the weighing structure to avoid error in weighing and return to zero
  • In case of vibration or dynamic loads product the load cells with puffers / shock absorbers
  • Protect load cell from any dust accumulation with any appropriate means