Radio Telemetry Module for Strain Gauge, 0-20mA, 0-10V Sensors (T24-ACMm)

Radio Telemetry Module for Strain Gauge, 0-20mA, 0-10V Sensors (T24-ACMm) The smallest of our T24 radio telemetry modules provide high performance telemetry measurement electronics for strain gauge, pressure, load cell, linear displacement and other 4 wire bridge sensors. Available as 0-10V voltage input or 0-20mA current input and now available […]

Radio Telemetry Module for Strain Gauge, 0-20mA, 0-10V Sensors (T24-ACMm)

The smallest of our T24 radio telemetry modules provide high performance telemetry measurement electronics for strain gauge, pressure, load cell, linear displacement and other 4 wire bridge sensors. Available as 0-10V voltage input or 0-20mA current input and now available with pulse, potentiometer or temperature inputs – see order Information above.

The standard internal antenna supplied offers up to 500m (1600 ft) range in an open field site. 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 base stations.

An optional battery pack can be chosen to power the T24-ACMm which uses 2 x AAA cells and can be connected via simple 2 part screw field terminals. Also offers the option to fit wired completion resistors allowing a strain input to be either full, half or quarter bridge input.

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 of up to 2000 per second to other T24 devices such as the handheld displays, analogue outputs and base stations etc.

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

The license 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.

The T24-ACMm-SA strain version provides direct mV/V input and 5V bridge excitation for up to 4 load cells.

For OEM’s, miniature PCB’s are available for each input. See T24-SA, T24-VA, T24-IA, T24-TA, T24-PA, T24-RA

  • Miniature telemetry module measuring 20 x 35 x 76mm
  • Choice of strain, 0-20mA, 0-10V inputs
  • NEW inputs now available – temperature, pulse or potentiometer
  • Designed for integration to strain gauge, voltage or current input sensors to provide radio telemetry link
  • Ideal for load cells, pressure, linear displacement, accelerometer, inclinometers & other current and voltage input sensors
  • Provides complete battery powered radio telemetry unit rated to IP50
  • Ideal in applications involving rotating parts
  • Optional battery pack (T24-BB1 see order Information below)
  • Easy connectivity with 2 part screw terminals for connection to a variety of sensors
  • Internal antenna provides up to 500m (1600 ft) range
  • Electronics provide exceptionally low power for long battery life (up to 5 years)
  • Remote power ‘on’ and ‘off’
  • High speed 2000 updates per second
  • High resolution of up to 1 part in 400,000 (18bit)

T24-ACMm

Electrical Min Typical Max Units
Battery Supply Voltage 2.1 3.0 3.6 V DC
Environmental
IP Rating IP50
Operating Temperature Range* -40 80* C
Storage temperature -40 85 C
Humidity 0 95 %RH
General Radio
Parameter Min Typical Max Units
Licence Licence Exempt
Modulation Method MS (QPSK)
Radio Type Transceiver (2 way)
Data Type 250 K bits/sec
Radio Frequency 2.4000 2.4835 GHz
Power 1 mw
Integral Antenna 100 (325) Metres (feet) **
External Antenna 200 (650) Metres (feet) **
Channels (DSSS) 16
T24-SA
Specifications with 1000R bridge, 2.5mV/V at 3V supply at 25 Deg C
Strain Gauge Excitation System 4 wire
Strain Gauge Excitation Voltage 4.5 5 5.25 VDC
Strain Gauge Drive Capacity 85 – 5000 Ohms
Maximum Gauge Sensitivity (FR) 3.2 ±mV/V
Offset Temperature Stability 1 4 ppm/C
Gain Stability 3 5 ppm/C
Offset Stability with Time 20 80 ppm of FR (1)
Gain Stability with Time 30 ppm of FR (1)
Non Linearity before Linearization 5 25 ppm of FR
Internal Resolution 16,000,000/24 Resolution/bits
Noise Free where Sample Time < 10mS – 50,000/15.5 Resolution/bits
Noise Free where Sample Time < 50mS – 65,000/16 Resolution/bits
Noise Free where Sample Time < 100mS – 150,000/17.25 Resolution/bits
Noise Free where Sample Time < 1000mS – 250,000/18 Resolution/bits
Noise Free where Sample Time > 1000mS – 400,000/18.75 Resolution/bits
T24-VA
Specifications with 1000R bridge, 2.5mV/V at 3V supply at 25 Deg C
Input Range Sensitivity (FR) 0 – 10 Volts
Gain Temperature Stability – – 50 ppm/C
Non Linearity before Linearization – 5 25 ppm of FR
Internal Resolution – 16,000,000/24 – Resolutions/bits
Internal impedence – 100,000 – Ohms
Input Calibration Accuracy – – 0.1 %FR
Noise Free where Sample Time < 10mS – 5,000/12.25 Resolutions/bits
Noise Free where Sample Time < 100mS – 8,000/13.0 Resolutions/bits
Noise Free where Sample Time < 1000mS – 11,000/13.5 Resolutions/bits
Noise Free where Sample Time > 1000mS 15,000/13.75 Resolutions/bits
T24-IA
Specifications with 1000R bridge, 2.5mV/V at 3V supply at 25 Deg C
Input Range Sensitivity (FR) 0 – 21 mA
Calibrated Range 4 – 20 mA
Gain Temperature Stability – – 50 ppm/C
Non Linearity before Linearization – 5 25 ppm of FR
Internal Resolution – 16,000,000/24 – Resolution/bits
Input Impedence – 47 – Ohms
Input Calibration Accuracy – – 0.1 %FR
Noise Free where Sample Time < 10mS – 5,000/12.25 Resolution/bits
Noise Free where Sample Time < 100mS – 6,000/12.75 Resolution/bits
Noise Free where Sample Time < 1000mS – 10,000/13.25 Resolution/bits
Noise Free where Sample Time > 1000mS – 30,000/14.75 Resolution/bits
T24-TA
Temperature Range -200 500 °C
Accuracy (-20 to 40 °C) 0.1 0.2 °C
Accuracy (-40 to 85 °C) 0.2 0.35 °C
Internal Resolution 16,000,000 / 24 Resolution/Bits
Noise Free where Sample Time < 5mS 13,000,000 / 13.5 Resolution/Bits
Noise Free where Sample Time < 10mS 17,000 / 14 Resolution/Bits
Noise Free where Sample Time < 100mS 62,000 / 16 Resolution/Bits
Noise Free where Sample Time > 1000mS 158,000 / 17 Resolution/Bits
T24-PA
Sensor Excitation Voltage 4.5 5 5.25 VDC
Input Range in Time 333 x 10-6 – 2 sec
Input Range in Frequency 0.5 – 3,000 Hz
Input Range in RPM (presuming 1 pulse / rev) 30 – 180,000 RPM
Accuracy % input error @ 1Hz – 0.15 %
Accuracy % input error @ 1kHz – 0.175 %
Accuracy % input error @ 2kHz – 0.2 %
Accuracy % input error @ 3kHz – 0.25 %
Accuracy Interval Resolved to 0.25 u sec
T24-RA
Senor Excitation Voltage 4.5 5 5.25 VDC
Input Range 500 100,000 Ohms
Accuracy 0.01 % of full scale
Battery Life in Low Power Mode Generating Results at 3HZ
Useage Battery Life
Pair AA Cells Constant On 1 Month
Pair AA Cells 12 sessions per day of 5 mins 2 Years
Pair D Cells Constant On 2.5 Months
Pair D Cells 12 sessions per day of 5 mins 5 Years

No Information Available.

No Information Available.