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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 AMPLIFIER for load cells

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Transmitter ZU

Technical Specifications

Power supply24 V dc 10% protected against polarity inversion, protection with resettable fuse
Max power consumption1,2 W
Operating temperature-10 / +50 C (14 / 122 F) Humidity Maximum 85% non-condensing
Storage temperature-20 / +60C (-4 / +140F)
Led2 LEDs to signal setting operations
KeyboardKeyboard with 3 keys
Overall dimensions120 x 105 x 24 mm / 4.72 x 4.13 x 0.94 in
MountingSupport DIN or OMEGA rail
ConnectionsRemovable screw terminals. Pitch screws terminal blocks 5.08 mm
Load cell input featuresMaximum 4 cells with 350 Ω in parallel (or 8 cells with 700 Ω)
Power supply load cells4 V
Linearity0.01% of full scale
Temperature deviation< 0.001% of full scale/C
Measuring rangeFrom -3.0 mV/V to +3.0 mV/V
Digital filter8 filter positions + 8 ramp settings
Zero / FS CalibrationExecutable through buttons
Analog output in tension 10 V / 5 V
 Resolution16 bit
 CalibrationDigital through 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 bit
 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, EN61326-1
For the complete and latest technical specifications, please refer to the technical data sheet which can be downloaded here:
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Type7 pins Terminal 5.08 mm pitch
2- Exc. Load cell
3+ Exc. Load cell
4+ Reference
5- Reference
6- Signal
7+ Signal
TypeTerminal block 9P pitch 5.08 ZU
11+ Power supply 24 V dc
12Ground power supply
13Shield / Ground
14Common Ground analog outputs
15OUT mA
16OUT Volts
Connections  Transmitter ZU


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