TBX Wireless Load Cell Bridge
Key Features
The TBX Wireless Load Cell Bridge eliminates the need for cables when setting up a load cell and weight indicator, because it replaces the wire connection between the load cell and indicator
- Ultra-low energy consumption
- Clamp connectors (vibration resistant)
- Additional LED module indicating system status
- Low battery status indicator (via RS 232 port and LED diode)
- Energy saving mode (sleep mode in absence of a change in mass value)
- Receiver powered directly from load cell connector (no external power supply)
- Multiple systems can be operated in one location (128 channels can be selected)
Available options: TBX Pair (R&T), TBX-R, TBX-T
Please contact us with any product interfacing inquiries.
Tacuna System’s Commitment
We strive to serve our diverse customer base across all industries, enabling them with the proper tools they need to be successful. As a small business, we take great pride in providing free consultation for product design & prototyping to all our valued customers. Our engineering specialists also have extensive R&D experience in strain gauge load cell technology, as we are well-known for our in-house designed signal conditioners and amplifiers, that can be customized.
TBX-R (Receiver)
| Receiver | Connected to the weight indicator as a load cell |
| Power supply voltage from the weight indicator | 5 – 10 VDC |
| Power consumption | max. 25mA |
| Constant emulated load cell | 2.0 mV/V |
| Emulated voltage | Proportional to the voltage come from the indicator |
| D / A converter | 16-bit, effective resolution 16-bit |
| Zero drift of amplifiers | <5ppm/K |
| Resistors in the analog circuit | 0.1%, 25ppm/K |
| Total error after calibration (estimated) | max. 90ppm/K (0.009%/K) |
| Number of transmitter connected to one receiver | 1 – 4 |
| Number of channels | 1 – 128 |
| Port RS 232 (RX, TX, COM) | For signalling the battery status in the transmitter |
| Configuration button | To set the signal level in case of no connection with the transmitter |
| Working temperature | From -40˚C to +85˚C |
| Dimensions | 86x47x12 mm (without housing) |
TBX-T (Transmitter)
| Load Cell Excitation | ~2,8 VDC max 100mA |
| D / A converter | 16-bit, effective resolution 16-bit |
| Frequency of measurement | 4.17x/sec (max. 50x/sec) |
| Resistors in the analog circuit | 0.1%, 25ppm/K |
| Total error after calibration (estimated) | max. 75ppm/K (0.0075%/K) |
| Power | 3.7 ~ 5 VDC (ie. 3 x AA battery, Li-Ion / Li-Po 3.7V) |
| Power consumption without load cell | < 5mA |
| Power consumption by a 360Ω load cell | 9.2 mA |
| Power consumption in sleep mode | < 0.3mA |
| Type of antenna | Integrated |
| Working temperature (without battery) | From -40˚C to +85˚C |
| Dimensions | 86x37x9 mm (without housing) |
Additional Information
| Radio | Bluetooth 4.0 Low Energy 2.4 GHz |
| Working distance | 20 meters |
| Connectors | Clamp – vibration resistance |
| Tool for mounting connectors | WAGO 206-861 |
| Compliance with the directives | CE, RED, RoHS, MD |
Working Modes
Figure 1 Load cell and Battery – TBX-T (Transmitter) – TBX-R (Receiver) – Weight Indicator
Figure 2 Load cell – TBX-T (Transmitter) – mobile app (replacing the weight indicator)
Load Cell Configuration Types
Figure 1 Load cell – TBX-T (Transmitter) – TBX-R (Receiver) – weight indicator
Figure 2 Several Load cells – TBX-T (Transmitter) – TBX-R (Receiver) – weight indicator
Figure 3 Several TBX-T (Transmitter) connected to one – TBX-R (Receiver). To one TBX-R (Receiver) you can connected up to 4 (pcs) TBX-T (transmitters)
