Bending parallelogram 535QD

The transducers of this product series are suited for traction / compression loads  – with a measuring range from 0 to ±6, ±12 Kg, ±25 Kg or ±50 Kg– that can be supplied in:

  • A version without an (mV/V) amplifier
  • with a voltage or current amplifier
  • with built-in digital electronics
  • with characterization in N

They are high-precision, reliable at an affordable price, easy to install and for general use, in industrial automation applications

 

Measuring range (traction and compression): from 0 to ±6, ±12, ±25, ±50 Kg Kg FS.

  • Built-in electronics (optional): analog and digital amplifiers
  • Environmental Protection: IP65 for FS = ±12, ±25 and  ±50 Kg; IP61 for FS = ±6 Kg (EN60529)
  • Compensation against offset loads
  • Rugged and reliable
  • Excellent quality/price ratio
  • Easy to install
  • EC Marking(EN 50081-2: 1994 / EN 50082-2: 1995)
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The application of the traction / compression load takes place through two co-axial threaded holes –– located in the center of the transducer’s upper and lower supporting surfaces, in such a way as to allow the direct coupling with the machine or with load adapters specifically for the application (for example with junctions or spherical adapters).

There is only one single strain gauge bridge inside the measuring body, to which an analog amplifier can be added, or a high-resolution digital acquisition interface, with programmable AD converters of 20 or 24 bit maximum resolution.

If the transducer is requested with integrated electronics, the following options are available:

  • Output in voltage0-5 V or 0-10 V
  • Output in current 0-20 mA or 4-20 mA (2 wires)
  • Digital output RS485 with Modbus protocol(RTU/ASCII)
  • CAN Digital output, CAN open protocol (DS 406)

 

The digital electronics can be easily configured, including by the Client, in such a way as to allow an easy utilization within the data network that is inside the machine. The use of the digital electronics with a Field Bus Module makes it possible to have an effortless connection to the intelligent measurement systems inside the IT infrastructure (in conformity with that indicated for Industry 4.0), with the advantage of disposing of a programmable high-resolution converter, that is directly built into the transducer, thus being able to have the maximum immunity to electrical disturbances and disposing of measurements already expressed in the mechanical units involved.    There are also advanced measuring functions, that make it possible to set the sampling frequency, to apply a possible linearization for the conversion of the measurements into the mechanical units involved (32 characterization points that can be memorized in EEprom) and an auxiliary filter. Using a digital transducer moreover facilitates its interchangeability with other load cells, in order to use the “digital cell + display instrument” measurement chain on a broad spectrum of applications and measurement loads, without having to worry about the updating of the display calibration. This feature is greatly appreciated in portable applications or on-board machine installations, where in addition to high measuring precision also requires a high flexibility in use.

The main characteristics of the digital amplifiers are:

  • A/D (Delta Sigma) programmable converter: 24bit max
  • Bandwidth: from 0 to 1.94 up until 390 Hz (-3dB, in function of the updating frequency set up for the measurement by the A/D converter)
  • Baud Rate: from 1,200 to 115,200 baud (RS485) or up to 1Mbaud (for CAN networks)
  • Transducer network ID that is freely definable, digitally
  • Operating temperature: from -20 to +70°C
  • Rh < 95%

In addition to the aforementioned advantages of the digital electronics integrated into the transducer, you should also consider a greater simplicity in the layout of the electrical connections, which makes it possible to aggregate a considerable number of units on the same digital transmission line, moreover drawing advantages from the functionality of the intrinsic diagnostics in the bus of the chosen field.

Fullscale

± 12 Kg, ± 25 Kg, ± 50 kg, ± 6 Kg

Environmental protection (EN 60529)

IP65

Sensitivity

2mV/V (tip.)

Total error

< ±0,023 % FS

Repeatability error

≤ ±0,033 % FS

Temperature effect on zero within 5° C

≤ ±0,023 % FS

Zero balancing

≤ ± 2% FS

Output impedance

350 Ω nominal

Input impedance

400 Ω nominal

Insulation resistance

> 5 G Ω

Recommended power supply

10 Vcc/ac

Excitation accepted

from 2 to 15 Vcc/ac

Safe load limit

150 % FS

Ultimate load limit

300 % FS (2)

Deflection

FS = ± 6: 0,34 mm (2) ###FS = ± 12: 0,31 mm (2) ###FS = ± 25: 0,32 mm (2)

Natural frequency

FS = ± 6: t.b.d. Hz ###FS = ± 12: 315 Hz ###FS = ± 25: 488 Hz

Nominal temperature range

-10/+40 °C

Operating temperature

-20/+70 °C

Storage temperature

-30/+100 °C

Material

aluminium alloy for aeronautical use

Weight

0,3 Kg

Clamping couple, fixing screws

1,1 Nm, M6 screw class 3.6 o 5.6

Analog Output

±10V, ±5V, 4-20 mA

Digital Output

CAN open, RS485

Output signal type

Analog, Digital

Sensitivity

2mV/V (tip.)

Material

Aluminium

Ingombri dimensionali 535QD

Celle di Carico NON AMPLIFICATE
(con uscita non condizionata, mV/V)

Utilizzare i collegamenti descritti nella tabella riferita al cavo GUAINA NERA.
Connessioni elettriche Celle di Carico senza elettronica interna
La Guaina Schermante non è collegata al corpo metallico della cella di carico e deve essere collegata ad una buona terra.

Celle di Carico AMPLIFICATE
(uscita amplificata in tensione 0-10V oppure 0-5V oppure 0 a ±10V oppure 0 a ±5V oppure amplificata in corrente 4/20mA)

Utilizzare i collegamenti descritti nella tabella riferita al cavo GUAINA NERA.
Connessioni elettriche Celle di Carico con elettronica interna
In costruzione