Transmitter RQA
Download PDF datasheet
Weight Transmitters with direct connection of one ore more load cells and a wide range of outputs for an easy integration in every industrial and automation system. Comfortable and immediate installation on DIN bar and/or OMEGA bar.
Digital / Analog load cell amplifier
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Technical specifications
| Power supply | 24 V direct current ± 10 % protected against inversion of polarity. Protection with resettable fuse |
|---|---|
| Max power consumption | 1 W |
| Isolation | Class II |
| Installation Category | Category II |
| Operating temperature | -10 / +50 °C (14 / 122 °F) Humidity Maximum 85% non-condensing |
| Storage temperature | -20 / +60°C (-4 / +140°F) |
| Led | 2 LED with 3 mm (function status) |
| Keyboard | 3 keys (behind red front cover) |
| Overall dimensions | 110 mm x 120 mm x 23 mm (l x h x p) including terminals |
| Mounting | Support DIN or OMEGA rail |
| Case material | Blend ABS/PC self-extinguishing |
| Connections | Removable screw terminals. Pitch screws terminal blocks 5.08 mm |
| Load cell input features | Maximum 4 load cells with 350 Ω in parallel (or 8 cells with 700 Ω) |
| Power supply load cells | 4V |
| Linearity | < 0.01% of full scale |
| Temperature deviation | < 0.001% of full scale/C° |
| Internal resolution | 16 - 24 bit |
| Measuring range | -2.6 mV/V - +2.6 mV/V |
| Digital filter | 0.1 Hz - 50 Hz |
| Number of weight decimals | from 0 to 3 decimal digit |
| Zero / FS Calibration | Executable through buttons |
| Cell cable interruption check | Always present |
| Analog output in tension | ± 10 V / ± 5 V |
| Resolution | 16 bits |
| Calibration | By push-buttons |
| Impedance | ≥ 10 kΩ |
| Linearity | 0,03 % of full scale |
| Temperature deviation | < 0,002 % of full scale/°C |
| Analog output under current | 0 – 20 A / 4 – 20 mA |
| Resolution | 16 bits |
| Calibration | Digital through buttons |
| Impedance | ≤ 300 Ω |
| Linearity | 0,03 % of full scale |
| Temperature deviation | < 0,002 % of full scale/°C |
| Conforms to standards | Compliance to EMC norms: EN61000-6-2, EN61000-6-3, Compliance electric safety: EN 61010-1 |
For complete and up-to-date technical specifications please refer to the datasheet you can download here
Download PDF datasheet Connections
| Type | 6 pins Terminal 5.08 mm pitch |
|---|---|
| Length | ND |
| 11 | Power supply 24 Vdc |
| 12 | Power supply GND |
| 13 | Shield |
| 14 | Analog outputs shield |
| 15 | Analog output 4-20 / 0-20 mA |
| 16 | Analog output ± 10V ± 5V |
| Type | 7 pins Terminal 5.08 mm pitch 6 wires load cell options |
|---|---|
| Length | ND |
| 1 | Shield |
| 2 | - Excitation |
| 3 | + Excitation |
| 4 | + Reference |
| 5 | - Reference |
| 6 | - Signal |
| 7 | + Signal |
| Type | 7 pins Terminal 5.08 mm pitch 4 wires load cells options |
|---|---|
| Length | ND |
| 1 | Shield |
| 2 | - Excitation Connect to terminal n. 5 |
| 3 | + Excitation Connect to terminal n. 4 |
| 6 | - Signal |
| 7 | + Signal |
Load cell mounting
General guidelines for installing and mounting load cells:
- Respect the direction in which forces are applied to the load cells
- Do not exceed the temperature limits shown on the rating plate
- Do not remove the labels from the cells
- Protect cables properly with sheaths or cable ducts
- Connect each cell to earth with a suitable cable, bridging the plates of the mounting accessories if necessary
- Do not weld on the mechanical structure once the cells are in place
- Avoid or minimise mechanical constraints between the fixed structure and the weighed structure, to prevent weighing errors and zero return problems
- When vibrations or dynamic loads are present, protect the cells with anti-vibration mounts
- Protect the cells from dust build-up with suitable covers