Transmitter RQA


Download PDF

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

Download usage manual


Zoom Click to enlarge image

Transmitter RQA

Technical Specifications

Power supply24 V direct current 10 % protected against inversion of polarity. Protection with resettable fuse
Max power consumption1 W
IsolationClass II
Installation CategoryCategory II
Operating temperature-10 / +50 C (14 / 122 F) Humidity Maximum 85% non-condensing
Storage temperature-20 / +60C (-4 / +140F)
Led2 LED with 3 mm (function status)
Keyboard3 keys (behind red front cover)
Overall dimensions110 mm x 120 mm x 23 mm (l x h x p) including terminals
MountingSupport DIN or OMEGA rail
Case materialBlend ABS/PC self-extinguishing
ConnectionsRemovable screw terminals. Pitch screws terminal blocks 5.08 mm
Load cell input featuresMaximum 4 load cells with 350 Ω in parallel (or 8 cells with 700 Ω)
Power supply load cells4V
Linearity< 0.01% of full scale
Temperature deviation< 0.001% of full scale/C
Internal resolution16 - 24 bit
Measuring range-2.6 mV/V - +2.6 mV/V
Digital filter0.1 Hz - 50 Hz
Number of weight decimalsfrom 0 to 3 decimal digit
Zero / FS CalibrationExecutable through buttons
Cell cable interruption checkAlways present
Analog output in tension 10 V / 5 V
 Resolution16 bits
 CalibrationBy push-buttons
 Impedance≥ 10 kΩ
 Linearity0,03 % of full scale
 Temperature deviation< 0,002 % of full scale/C
Analog output under current0 20 A / 4 20 mA
 Resolution16 bits
 CalibrationDigital through buttons
 Impedance≤ 300 Ω
 Linearity0,03 % of full scale
 Temperature deviation< 0,002 % of full scale/C
Conforms to standardsCompliance to EMC norms: EN61000-6-2, EN61000-6-3, Compliance electric safety: EN 61010-1
For the complete and latest technical specifications, please refer to the technical data sheet which can be downloaded here:
Download PDF

Connections

Type6 pins Terminal 5.08 mm pitch
LengthND
11Power supply 24 Vdc
12Power supply GND
13Shield
14Analog outputs shield
15Analog output 4-20 / 0-20 mA
16Analog output 10V 5V
Type7 pins Terminal 5.08 mm pitch 6 wires load cell options
LengthND
1Shield
2- Excitation
3+ Excitation
4+ Reference
5- Reference
6- Signal
7+ Signal
Type7 pins Terminal 5.08 mm pitch 4 wires load cells options
LengthND
1Shield
2- Excitation Connect to terminal n. 5
3+ Excitation Connect to terminal n. 4
6- Signal
7+ Signal
Connections  Transmitter RQA

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