Curiotec Digital Load Cell Solution
Digital Load Cell Solution for Truck Scales
RS-485 digital weighing technology for truck scales, weighbridges, silo scales, and other high-capacity industrial weighing systems.
OIML C3 / OIML C6 | IP68 | RS-485 | Digital A/D Module

OIML certificate numbers
Both Curiotec truck scale ranges hold an OIML Certificate of Conformity issued by NMi Certin B.V., the OIML issuing authority for the Netherlands (code NL1). You can verify either number yourself in the public OIML database.
| Range | Certificate number | Certified type |
|---|---|---|
| NDSB | R60/2017-A-NL1-23.17 | Double ended shear beam load cell, OIML R60-1:2017, accuracy class C |
| RPWB | R60/2000-NL1-16.18 | Compression load cell, OIML R60 edition 2000, accuracy class C |
Search either number at the OIML certificate database, then check that the manufacturer name, load cell type and capacity range match the cells actually delivered. A certificate covers a product range, not an individual cell.
Ultra-small Digital A/D Module
The digital A/D module converts analog strain-gauge signals into RS-485 digital data close to the sensing point. This helps improve signal stability, reduce noise influence, and simplify service work in truck scale installations.
| Digital Module | Specification |
|---|---|
| F.S count | 1M |
| A/D convert speed | 10 per second |
| Communication protocol | RS485 |
| Transmission distance | <1000m |
| Address capacity | 00-31 |
| Input power | DC5.4V-15V |
| Operating temp. | -30 to +70 |
| Size | 25mm x 6mm |
![]() Ultra-small digital A/D module for RS-485 digital weighing systems. |
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Digital Truck Scale Configuration
Integrated RS-485 Digital Weighing Architecture
A digital truck scale system combines digital load cells, a digital junction box, digital indicators, remote display, and PC/PLC integration. RS-485 communication supports long-distance transmission and easier individual load cell diagnostics.

- Digital Load Cells: provide digital data from each weighing point.
- Digital Junction Box: collects RS-485 signals and supports stable transmission.
- Digital Indicator / Software: supports calibration, diagnostics, display, reports, and automation connection.
Key Advantages for Truck Scale Projects
- Stable signal transmission: RS-485 helps reduce noise impact over long cable distances.
- Faster commissioning: digital corner adjustment and calibration can reduce setup time.
- Smarter maintenance: individual load cell monitoring helps locate overload, cable, or sensor issues faster.
OIML C3 and C6 Certified Accuracy
Curiotec load cells are available with OIML C3 and OIML C6 accuracy options. The correct class should be selected according to capacity, division value, number of load cells, indicator compatibility, calibration method, and operating environment.
| OIML C3 Suitable for commercial truck scales and industrial weighing systems requiring reliable legal-for-trade performance with practical investment cost. | OIML C6 Higher accuracy class for demanding weighbridge, railway, silo, and vehicle weighing applications. |
Heavy-duty Outdoor Performance
Truck scales operate under axle load, vibration, rainwater, dust, and electrical noise. Curiotec load cells with IP68 protection are suitable for outdoor weighbridge environments, wet pits, silo weighing, railway scales, and other high-capacity applications.
Common Curiotec Models
Analog or Digital Load Cell?
| Option | Recommended when |
|---|---|
| Analog load cell | The project needs reasonable cost, easy replacement, and compatibility with standard weighing indicators. |
| Digital load cell | The truck scale has long cable distances, electrical noise, faster calibration requirements, or individual diagnostics needs. |
Genuine products · Reliable support
KALA Technical Notes
KALA supports CURIOTEC load-cell selection, OIML certificate checks, mounting accessories, replacement planning, calibration and truck-scale integration. Send us your capacity, platform size, number of load cells and required accuracy for a practical recommendation.
● Professional support for CURIOTEC digital load cells, OIML C3/C6 and truck-scale applications.
Reference sources: Curiotec Digital Load Cells catalog PDF, OIML-CS, Load cell NDSB-D 30TF.

