Electronic Scales Technical Service Manual
Datasheets and Manuals: Loadcells, Weight Transmitters.
Technical Documents
Catalogues
Weighing Accuracy
Understand the principles of weighing accuracy and how modern load cell technology, proper system design, installation, calibration, and environmental conditions work together to deliver reliable measurements.
Replacing a PT650D Indicator on a Batching Plant
A field replacement on a concrete batching plant: PT650D specification, the 0-10 V analog link to the PLC, fitting a Keli XK3101E into the same connector, and the voltage drop to watch for.
Checkweighing with Relay Outputs and a Light Tower
Hi, OK and Lo signalled by colour instead of read from a display. Choosing the relay board, wiring the tower to the DB-25, reading the connector diagrams, and setting the limits.
Adding an RS-232 Interface to a Bench Scale
Fitting a TTL to RS-232 board to a Jadever JCE or JWE: board options, DB-9 to DB-25 pin mapping, serial settings, and the fixed-width ASCII string the scale sends.
Connecting a DWI-100E Indicator to a ULP50 Printer
Two wires, one output string and three indicator settings. The ASCII and hex forms of the print string, and why a mismatched form name looks like a wiring fault.
Electronic Scale Reading the Wrong Weight: Field Diagnosis and Corner Adjustment
A bench or floor scale showing the wrong weight is usually not broken. Work through the symptom, run the four-corner test, and decide whether corner adjustment will fix it or the load cell needs replacing.
Configuring the SPRT SP-DIII Thermal Printer
No display, no menu: the SP-DIII and SP-DIV are set up by holding one key at power-up and reading what the printer prints back. The timing matters.