Series  LDU68.x & 78.1
Multifunction intelligent Digital Transmitters 

 

LDU 68.1  - R76 Approved

Load cell Digitizing Unit,  including 2 output  set-points & 2 inputs

LDU 68.1 provides digital data from weighing operations based on strain gauge load cells at a speed and precision suitable for most purposes. Logic operations can be controlled directly vie the dual logic inputs and outputs.

The LDU’s are designed to be embedded into customer’s equipment, to be plugged into a Unit Adaptor or integrated with a hosting device.

Product highlights

  • 2 inputs, 2 outputs, approved
  • An economic solution for most standard
  • weighing application.
  • OIML R76 approved for non-automatic weighing.
  • OIML R76 microV/count 1.0
  • Internal precision reference 3.800mV/V for mV/V calibration.
  • Supports any automatic or manual
  • weighing device with normal requirements as to speed and precision.
  • Linearity < 0.005%
  • Temp effect: Span 7/<10ppm, Zero 2/<5 ppm
  • Communicates via a RS 422/485 full
  • duplex interface in 32 node networks or point
  • to point.
  • Offers dual logic outputs and dual logic
  • inputs for various control, filling and sorting
  • operations.
  • A graphic presentation, analysis and setup PC program, DOP is available.
  • Option UA 77.9  for USB to PC connection

 

 

LDU 68.2 - Economy - Saving

Load cell Digitizing Unit,  including 2 output  set-points & 2 inputs

LDU 68.2 provides digital data from weighing operations based on strain gauge load cells. It is pin and protocol compatible with other members of the LDU family, (68.1/68.3/69.1/78.1), thus offering a selection of precision levels, functionality and cost.

All LDU’s are designed to be embedded into customers’ equipment, to be plugged into a Unit Adaptor or integrated with a hosting device.

Product highlights

  • 2 inputs, not approved
  • An economic solution for most standard,
  • weighing applications.
  • Eases the design of any digital device
  • dealing with a load cell input.
  • Supports any automatic or manual weighing
  • Device with standard requirements as to High Speed and precision.
  • Linearity < 0.005%
  • Temp effect: Span 25/<50ppm,Zero 15/<30 ppm
  • Communicates via a RS 422/485 full duplex
  • interface in 32 node networks or point to point.
  • Offers dual logic inputs for framing etc.
  • A graphic presentation, analysis and set up
  • PC program, DOP is available.
  • Option UA 77.9  for USB to PC connection

 

 

 

 

LDU 78.1 - R76 Approved  (R51)

Load cell Digitizing Unit including 2 output  set-points & 2 inputs

LDU 78.1 provides digital data from weighing operations at a very high rate (2400 conv./sec.) from fast weighing  - check weighing or force measuring operations based on single or several strain gauges load cells. The advanced signal filtering together with the high precision and high speed make this unit very interesting for this type of jobs.

 

Product highlights

  • 2 inputs, 2 outputs, approved
  • OIML R76 approved for non-automatic weighing
  • High speed weighing applications.
  • Eases the MID approvals of R51,
  • Eases the design of any digital device !
  • OIML R76 microV/count 0.3
  • Supports any automatic or manual weighing at high speed Check weighing 
  • device with standard requirements as to High speed and precision.
  • Linearity < 0.002%
  • Temp effect: Span 5/<7ppm, Zero 4/<6 ppm.
  • Communicates via a RS 422/485 full duplex
  • interface in 32 node networks or point to point.
  • Offers dual, logic outputs and dual, logic
  • inputs for various control, filling and sorting
  • operations.
  • A graphic presentation, analysis and set up
  • PC program, DOP is available.
  • Option UA 77.9  for USB to PC connection

 

Product qualities LDU68.1

±131.000 counts input signal resolution, 100 nV/count, 90 A/D conversions/sec.

Digital filter performance 60 db/decade LP filter 5 to 0,02Hz.

Can drive 250 ohm load cells, e.g. 4 pc, each 1000 ohm, at 5 Vdc.

Dual logic inputs for position sensors or valve feed back etc. can define a time frame for automatic operations.

Dual logic outputs provide external control of actuators etc., or for internal computing.

Signal conditioning, zero and tare operations convert the load cell output into a calibrated unit (g; kg; lbs; etc.).

To be designed into customers’ PCB or bolted on the side a load cell.

Fits with a selection of Unit Adaptors, offering many I/O facilities and mounting options.

The LDU 68.1 is pin and protocol compatible with other members of the LDU family, (68.2/68.3/69.1/78.1), thus offering a selection of precision levels, functionality an

 

LDU68.1 Series brochure Dansk

LDU68.1 brochure English

 

Product qualities LDU68.2

±17 bit (±131.000 counts) input signal resolution, 100 nV/count, 90 A/D conversions/sec.

Digital filter performance 60 db/decade, LP filter 5 to 0,02Hz.

Can drive 250 ohm load cells, e.g. 4 pc, each 1000 ohm, at 5 Vdc.

Dual logic inputs for position sensors or valve feed back etc. can define a time frame for automatic operations.

Signal conditioning, zero and tare operations convert the load cell output into calibrated units (g; kg; lbs; etc.) as requested.

EMC compliance and surge protection are provided by shielding and T-filters at all pins.

The secured inputs and protected power input withstand excessive actions. Power supply range is 12-24 Vdc.

To be designed into customers’ PCB or bolted on the side a load cell.

Fits with a selection of Unit Adaptors, offering many I/O facilities and mounting options.

LDU68.2 brochure  
Dansk, inkl. DOP software via USB port

LDU68.2 brochure English

 

Product qualities LDU78.1

(±260.000 counts) input signal resolution, 100 nV/count, 2400 A/D conversions/sec.

Digital filter performance 60 db/decade, LP filter 5 to 0,02Hz.

Can drive 250 ohm load cells, e.g. 4 pc, each 1000 ohm, at 5 Vdc.

Dual logic inputs for position sensors or valve feed back etc. can define a time frame for automatic operations.

Dual logic outputs provide external control of actuators etc., or for internal computing. All set up parameters are available.

Signal conditioning, zero and tare operations convert the load cell output into calibrated units (g; kg; lbs; etc.) as requested.

EMC compliance and surge protection are provided by shielding and T-filters at all pins.

The secured I/Os and protected power input withstand excessive actions. Power supply range is 12-24 Vdc.

To be designed into customers’ PCB or bolted on the side a load cell.

Fits with a selection of Unit Adaptors, offering many I/O facilities and mounting options.

LDU78.1 brochure 

 

 

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Last modified: 25.08.16