OEM Wireless Current Sensor Transmitter (T24-IA)

This wireless current interface provides measurement for an input range of 0-20mA, with 5V sensor power
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Miniature OEM current acquisition board next to an AA battery for scale. Enclosure options for the wireless current sensor, the miniature size allows for the option of embedding within sensor housing
  • 0-20 mA input
  • Miniature PCB for fitting inside sensors
  • Low power mode
  • Remote power 'on' and 'off'
  • High speed 200 updates per second
  • Transmits on licence free 2.4 GHz
  • Simple wireless configuration and calibration
  • Antenna options giving up to 800 m (2,600 ft) range
  • Choice of enclosures T24-ACMi, T24-ACM, T24-ACMm (see thumbnail image on left & 'Related Products' below)
  • View product sheet

 

The OEM wireless current sensor transmitter, provides wireless current measurement for an input range of 0-20 mA. Suitable for a range of 4-20 mA sensors such as pressure, inclinometer, accelerometer, temperature & displacement. The small module size allows for the option of embedding it within the sensor housing. Provides 5 V sensor power.

Click here to view & download associated free software.

Low power modes allow the T24-IA OEM wireless current (4-20 mA) sensor transmitter 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 T24-IA can be configured to last several years on 2 x alkaline AA batteries or alternatively powered from 2 x NiMH or 1 x 3 V Lithium.

The high accuracy, low noise measurement electronics in the T24-IA delivers 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 wirelessly at rates up to 200 per second to other T24 devices such as handheld displays, analog outputs and base stations etc.

Although this OEM wireless current (4-20 mA) sensor transmitter T24-IA can be used ‘as is’ for OEM solutions there are a number of enclosure options available. See ‘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 600 m (1969 ft) range and external antenna options allows up to 800 m (2600 ft) range in an open field site. 

The licence free 2.4 GHz direct sequence spread spectrum (DSSS) radio telemetry 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. 

See the battery life of your wireless sensing system using the Battery Life Calculator.

Module transmits and Receives giving:

1. Full error detection and correction
2. Ability to switch to low power modes
3. Calibration & configuration via radio telemetry
4. Ability to be switched from sleep to operating mode via radio
5. Calibration stored within the module
6. Remote battery check

*Maximum range achieved in open field site with the T24 acquisition module at a height of 3 metres (9.8 feet) above ground and T24-HS held at chest height pointing towards the acquisition module. Specification at 3V supply at 25°C

 

 

 

 

Documents

Software

  • T24 Toolkit : Version 2.4.15 This toolkit allows configuration, calibration and testing of the T24 range of 2.4GHz telemetry products.
  • T24 Quick View : Version 2.0.0 This product allows you to view and log data from the T24 range of 2.4GHz telemetry acquisition modules. Only works with T24-BSu USB base station. What Does It Do
  • 100 Channel Logging & Visualisation Software (T24LOG100) : For use with up to 100 channels using T24 range of sensor transmitters, view, log and browse data on demand, set visual and audible alarms. Graphics and mapping capabilities. Customised branding available. Allows remote viewing via webserver.

Product order options

T24-IA Code
Current Transmitter with fitting for External Antenna T24-IAe
Current Transmitter with Internal Antenna T24-IAi

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

Wireless Sensor Transmitter IP67 Enclosure

Wireless Sensor Transmitter IP67 Enclosure

T24-ACM
Wireless Sensor Transmitter IP50 Enclosure

Wireless Sensor Transmitter IP50 Enclosure

T24-ACMm
Wireless Telemetry Radio Base Station

Wireless Telemetry Radio Base Station

T24-BSi
Wireless Telemetry USB Base Station

Wireless Telemetry USB Base Station

T24-BSu
Wireless Portable Display Receiver

Wireless Portable Display Receiver

T24-HA
OEM Wireless Strain Gauge Sensor Transmitter

OEM Wireless Strain Gauge Sensor Transmitter

T24-SA
Wireless Portable Display Receiver for Unlimited Inputs

Wireless Portable Display Receiver for Unlimited Inputs

T24-HR
Q: What are the sampling rates of the transmitter modules?

A: The T24 standard transmitter modules (SA, IA, VA, RA, TA, PA) sample from 0-200 updates/sec. The T24-SA fast transmitter modules are fixed at 2,000 updates/sec.

Q: What is the resolution of the transmitter modules?

A: 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, 14 bits for the VA and 12.25 bits for the T24IA.

The T24-PA’s accuracy % input error @ 1 Hz is 0.15% and for the T24 RA the accuracy is 0.01% of the full scale.

With increased sample times resolution can be increased up to 18.75 bits for the T24-SA.

Q: What is the supply voltage for the transmitter modules?

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

Q: What is the difference between the "i" and "e" versions of the transmitter units?

A: The ‘i’ modules all feature an on-chip integrated antenna. The ‘e’ modules are fitted with a miniature UFL connector which can be used with any of the antenna options available; the T24-ANTA (PCB antenna) or T24-ANTB (fixed 90 degree Whip antenna) or T24-ANTC (flexible whip antenna).

Q: How are the modules powered?

A: Two standard AA batteries or the T24-BC1 Battery Charger, which provides a re-chargeable power supply using a Li-ion Cell. Find out the battery life of your system using our Battery Calculator.

Q: What software is provided with the T24 devices?

A: All devices are supported by the T24 Tool Kit which allows users to configure all devices from the T24 range as well as view and log data from transmitters modules in range. The software can also be downloaded directly from our website.

Q: How many devices can operate on one radio channel?

A: Many devices can operate on the same radio channel depending on the sample rate of the transmitter modules present in the system. The radio channel is capable of supporting up to 200 data packets per second.

Q: Can PC software gather data from many devices?

A: Yes, Mantracourt provides freeware for logging up to 100 inputs to one base station, in addition the free Windows DLL and COM driver can be used to gather data through a customer's own PC software.

Q: What limits the RF range of the devices?

A: Any metal surface will reflect 2.4 GHz radio waves, therefore in a sealed metal box, no RF will escape. However by providing a suitable RF window the signals will propagate out.

Q: What Frequency does the system operate on?

A: Licence free world wide 2.4GHz, although this frequency is used by other equipment, the T24 range has been tested with Bluetooth, Zigbee & WiFi devices without conflicts.

Q: Is it possible to use wireless range extenders within T24 network?

A: The T24-AR wireless range extender which can be added to the system can propagate a signal around corners and obstacles. This unit can also double the effective range.

Q: Is the system point to point?

A: Yes, however the modules may also operate in many to one (such as multiple data transmitters modules communicating with a base station) and one to many (such as a data transmitter module supplying data to multiple handhelds and displays).

Q: What sensors would these inputs cover?

A: Any sensor that provides a voltage, current or ratio metric interface can be connected to an transmitter module, including load cells, inclinometers, accelerometers, displacement LVDT, pressure, potentiometer, pulse, temperature, humidity, ph, shock.

Q: What is the communication protocol?

A: Proprietary protocol based on a 802.15.4 chip. This allows the T24 range to co-exist with Bluetooth, Zigbee & WiFi devices without conflicts.

Q: What are the sampling rates of the transmitter modules?

A: The T24 standard transmitter modules (SA, IA, VA, RA, TA, PA) sample from 0-200 updates/sec. The T24-SA fast transmitter modules are fixed at 2,000 updates/sec.

Q: What is the resolution of the transmitter modules?

A: 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, 14 bits for the VA and 12.25 bits for the T24IA.

The T24-PA’s accuracy % input error @ 1 Hz is 0.15% and for the T24 RA the accuracy is 0.01% of the full scale.

With increased sample times resolution can be increased up to 18.75 bits for the T24-SA.

Q: What is the supply voltage for the transmitter modules?

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

Q: How are the modules powered?

A: The ACMm is the smallest module and has a separate battery pack (T24-BB1 using 2 x AAA). The T24-ACMi is the mid size module and provides power via 2 x AA internal batteries. The T24-ACM although larger can provide power from an external power supply (5-18V) as well as 2 x D cell internal batteries which provide a higher battery capacity allowing for longer battery life.

Find out the battery life of your system using our Battery Calculator.

Q: Can power be provided to a sensor?

A: Yes, all transmitter modules feature a 5V supply which is a excitation voltage (with exception of T24-RA which has 2.5V supply).

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

Click here

Q: How is the strain gauge transmitter module calibrated?

A: The modules are factory calibrated to 2.5 mV/V which can be custom calibrated and linearised over up to 9 points by using the T24 Toolkit. The T24-SAf has fixed factory calibration and cannot be linearised.

Q: In the T24 transmitter range what is the difference between the 'i' and 'e' ?

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 any of the antenna options available; the T24-ANTA (PCB antenna) or T24-ANTB (fixed 90 degree Whip antenna) or T24-ANTC (flexible whip antenna).

Q: How many transmitter modules can be acquired by the base stations?

A: Each base station can use one of 16 channels. From that selected channel a base station can collect data simultaneously from any number transmitter modules depending upon the frequency of readings being provided by the transmitter module.

Q: What are the input ranges of the T24 transmitter modules?

A: T24-SA 2.5mV/V calibrated strain gauge based measurement; T24-VA 0-10V, T24-IA 4-20mA, T24-TA pt100 sensor input, T24-RA potentiometer 500 to 100000 Ohms and T24-PA 0.5Hz to 3kHz.

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