Wireless Telemetry Strain Gauge/Wireless Load Cell Acquisition Module (T24-SA)

This remote acquisition module provides high performance wireless measurement of strain gauge, pressure, load cell, linear displacement and other 4 wire bridge sensors. Providing direct mV/V input and 5V bridge excitation for up to 4 load cells. The miniature size allows for the option of embedding within the sensor housing.

Low power modes allow the module to ‘power down’ between transmissions or to ‘power off’ completely and can be controlled by other T24 products such as the handheld displays or a base station. The module can be configured to last several years on 2 x alkaline AA batteries or alternatively be powered from 2 x NiMH or 1 x 3V Lithium.

The high accuracy, low noise measurement electronics deliver high resolution, low drift results which can be user calibrated over 9 points to enable linearization and to deliver results in user definable engineering units. The results can be transmitted at rates up to 200 per second to other T24 devices such as handheld displays, analog outputs and base stations etc.

Although this module can be used as an OEM solution (for example creating a wireless load cell by embedding the module), there are enclosure options available (see T24-ACM in 'Related Products Tab').

The module is configured and calibrated (either by applying known inputs or by table entry) using free T24 Toolkit software which runs on a PC connected to a T24 base station.

Integral antenna option offers up to 100m (325 ft) range and external antenna options allows up to 200m (650 ft) range in an open field site. 

The licence free 2.4GHz direct sequence spread spectrum (DSSS) radio technology offers high integrity, error free communications which can co-exist with other wireless technologies such as Wi-Fi, Bluetooth® and Zigbee®. FCC, ETSI and IC approvals
 

Module transmits and Receives giving:

1. Full error detection and correction
2. Calibration & configuration via radio telemetry
3. Ability to be switched from sleep to operating mode via radio
4. mV/V Calibration stored within the module
5. Remote battery check
6. Data Encrytion for complete security (128 bit AES)

Product order options

Please read the following before selecting the options for this product:

These are the following industries and applications in which this product has been used:

• Automotive - Wireless Torque Measurement
• Civil Engineering - Wireless Monitoring on High Altitude Roads
• Civil Engineering - Wireless Monitoring of Bridge Structures
• Civil Engineering - Wireless Monitoring of Anchor Loads
• Construction - Wireless Monitoring of Building Foundations
• Lifting & Handling - Wireless In-Truck Monitoring of Load
• Lifting & Handling - Wireless Crane Load Pin
• Marine - Wireless Mooring Rope Monitoring of Maritime Vessel
• Silo & Weighing Industry - Wireless Silo Weighing
• Torque Measurement - Wireless Torque Measurement
• Theatre & Outside Events - Wireless Stage & Rigging Monitoring
• Waste Management - Wireless Skip Weighing System
• Waste Management - Wireless Platform Weighing With Ticket Printing
• Waste Management - Wireless Laundry Collection Tail Gate Weighing

What are the sampling rates of the acquisition modules?

The T24 standard acquisition modules (SA, IA, VA) sample from 0-200Hz. The T24 fast acquisition modules are fixed at 2KHz.

What is the resolution of the acquisition modules?

The noise free resolution for a sample time of 10 milli-seconds or less is 15.5 bits for the T24 SA, 12.5 bits for the T24-VA and 12.25 bits for the T24IA. With increased sample times resolution can be increased up to 18.75 bits for the T24-SA.

What is the supply voltage for the acquisition modules?

3V for the acquisition modules and handheld displays. Other modules in the range take 9-36 V

What is the difference between the T24-SA and T24-SAf?

The standard acquisition modules are capable of providing data up to 200Hz. The ‘fast’ T24-SAf provides data at a fixed 2Khz.

What is the difference between the ‘i’ and ‘e’ versions of the

A: The ‘i’ modules (T24-SAi, T24-SAfi, T24-VAi, T24-IAi) all feature an on chip
integrated antenna. The ‘e’ modules (T24-SAe, T24-SAfe, T24-VAe, T24-IAe) are
fitted with a miniature UFL connector which can be used with either of the antenna options available (the T24-ANTA pcb antenna or T24-ANTB stub antenna).
 

How are the strain gauge acquisition modules calibrated?

A: The modules are factory calibrated to 2.5 mV/V which can be custom calibrated up to 9 points by using the T24 Toolkit.

How are the modules powered?

A: Standard AA batteries or the T24-BC1 Battery Charger which provides a re-chargeable power supply

For more 'Frequently Asked Questions' please see our Knowledge Centre

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There are other terms which may help to describe this product and is capabilities. These are:

wireless strain gauge
wireless strain gage
wireless sensor
loadcell wireless sensor network
wireless sensors network
radio sensor network
digital telemetry
remote data logging
multi channel data logger
telemetry data logger
radio telemetry
telemetry system
telemetry monitoring
wireless telemetry
wireless data acquisition
remote data acquisition

Other common terms used in industry are also:

vehicle weighing
torque telemetry
load cell telemetry interface
load cell wireless interface
load cell radio system
wireless load cell
wireless crane scale
wireless vehicle weighing
crane scale
vehicle weighing

 Links

Wireless Strain Gauge

wireless strain gauge
 

Radio Sensor Network
 

radio sensor network