CASC digital load cell distributed by KALA
CASC KDS-D / KDB-D 30 tf digital load cell
The CASC KDS-D / KDB-D 30 tf is a digital double-ended shear beam load cell built for truck scales, rail scales, silo scales and other heavy industrial weighing systems. It is a practical replacement where an older generation of digital load cells needs to be brought up to a more stable digital platform.
It communicates over RS-485, which carries further and rejects noise better than a traditional analog signal. When replacing a BTA-D or another digital load cell, check the communication protocol, the load cell addressing, the indicator in use and the calibration procedure before putting the system back into service.
| 30 tf Rated capacity |
OIML C4 Accuracy class |
RS-485 Digital communication |
IP68 Industrial duty |
CASC KDS-D / KDB-D 30 tf digital load cell for truck scale applications.
What the KDS-D / KDB-D gives you
| Feature | What it means in service |
|---|---|
| Digital load cell | The signal is conditioned and transmitted digitally, which cuts noise, holds the reading steadier, and lets you interrogate each load cell in the system individually. |
| RS-485 communication | Suits truck scales, silo scales and any system where the signal has a long way to travel. |
| Double-ended shear beam | Loaded at both ends, which suits truck scales and other heavy-capacity work that needs mechanical stability. |
| OIML C4 | Meets the measurement requirements expected of industrial and trade-approved weighing systems. |
| Retrofit for older digital cells | Usable in refurbishment, upgrade or replacement projects, provided you confirm compatibility with the indicator before installation. |
Cabling and communication
The KDS-D / KDB-D uses 2-wire RS-485. When it replaces a BTA-D or another digital load cell, check the actual wire colours against the documentation shipped with the product. Do not wire it from memory of the old model’s colour code.
| Supply + | Supply – / GND | RS-485 A | RS-485 B | Shield |
|---|---|---|---|---|
| Confirm from datasheet | Confirm from datasheet | RS-485 A | RS-485 B | Bond the shield properly |
Replacing a BTA-D with a KDS-D / KDB-D: confirm the communication protocol is compatible with the indicator, re-address the load cells if needed, then redo zero calibration, span calibration and corner adjustment across the whole scale.
Main specifications
| Parameter | Reference value |
|---|---|
| Model | CASC KDS-D / KDB-D 30 tf |
| Load cell type | Digital double-ended shear beam load cell |
| Rated capacity | 30 tf |
| Accuracy class | OIML C4 |
| Combined error | 0.03 %R.O |
| Repeatability | 0.02 %R.O |
| Creep, 30 min | 0.03 %R.O |
| Recommended excitation | 10 V |
| Maximum excitation | 15 V |
| Operating temperature | -20 to +80 deg C |
| Communication protocol | RS-485, 2-wire |
| Signal cable | Round 4-core cable, PVC jacket, 14 m reference length |
Digital module specifications
| Module parameter | Reference value |
|---|---|
| F.S count | 1M |
| A/D convert speed | 10 readings per second |
| Transmission distance | < 1000 m |
| Address capacity | 00 to 31 |
| Input power | DC 5.4 V to 15 V |
| Rated power | 4 mA standard |
| Preheating time | 5 minutes |
| Operating temperature | -30 to +70 deg C |
Dimensions and mounting accessories
Main dimensions and mounting accessories for the CASC KDS-D / KDB-D 30 tf.
Before you replace a BTA-D
| Do not swap load cells one at a time until you have confirmed the communication protocol and that the indicator will accept the new cells. | |
| Replace the full set on a given deck rather than mixing, so you do not end up with different communication standards, different sensitivities and different addressing schemes on one scale. | |
| After installation, address the load cells, check every corner, calibrate zero and span, and record the final parameters. | |
| UniCell can review your indicator configuration, confirm the right load cell for the system, and walk you through recalibrating the scale. |
Related reading
| Page | What it covers |
|---|---|
| Corner adjustment and digital load cell checks | Reading ISN, judging load distribution and moving the K factor safely after a load cell change. |
| Truck scale solutions | Where this load cell sits in a complete truck scale system. |
| DS8 digital weighing indicator | A digital indicator that handles these load cells: calibration, corner adjustment, communication and ticket printing. |
UNICELL Sensors
For a quote or a compatibility check, send us the indicator make and model, the number of load cells and the deck size, the load cell you are replacing, and the communication protocol currently in use. We will confirm whether the KDS-D / KDB-D will drop into that system before you order.
All specifications are subject to change without notice.
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