Wireless Voltage Measurement Acquisition Module (T24-VA)

Wireless Voltage Measurement Acquisition Module (T24-VA) This acquisition module provides wireless voltage measurement for an input range of 0 to 10Volts. Suitable for a range of 0-10V sensors including pressure, inclinometer, accelerometer, temperature & displacement. The small module size allows for the option of embedding it within the sensor housing. […]

Wireless Voltage Measurement Acquisition Module (T24-VA)

This acquisition module provides wireless voltage measurement for an input range of 0 to 10Volts. Suitable for a range of 0-10V sensors including pressure, inclinometer, accelerometer, temperature & displacement. The small module size allows for the option of embedding it within the sensor housing. Provides 5V sensor power.

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 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 is’ for OEM solutions there are a number of enclosure options available. See ‘Related Products’ tab.

The wireless voltage transmitter is configured and calibrated (either by applying known inputs or by table entry) using freeT24 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.

  • Wireless voltage transmitter for 0–10Volt input
  • Miniature PCB for fitting inside sensors
  • Exceptionally low power for long battery life
  • Remote power ‘on’ and ‘off’
  • High speed 200 updates per second
  • High resolution of 1 part in 15,000 (13.75 bit)
  • Simple wireless configuration and calibration
  • 1 year manufacturers warranty
  • Antenna options giving up to 200m (650 ft) range
  • Choice of enclosures T24-ACM, T24-ACMi, T24-ACMm (see thumbnail image on left & ‘Related Products’ below)

T24-VA 

General Radio

  Min  Typical  Max   Units
 Licence  Licence Exempt
 Modulation Method  MS(QPSK)
 Radio Type  Transceiver (2 way)
 Data Rate  250  K bits/sec
 Radio Frequency  2.4000  2.4835  GHz
 Power  1  mw
 Integral Antenna  120 (400)  Metres (feet) *
External Antenna  200 (650)  Metres (feet) *
Channels (DSSS) 16
 *Maximum range achieved in open field site at a height of 3 metres (9.8 feet) above ground.
Specification at 3V supply at 25 Deg C
Input Range Sensitivity (FR) 0 10 Volts
Gain Temperature Stability 50 ppm/C
Non Linerarity Before Linearization 5 25 ppm of FR
Internal Resolution 16,000,000/24 Resolution/ Bits
Input Impedence 100,000 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 8,000/13.0 Resolution/ Bits
Noise Free where Sample Time < 1000mS 11,000/13.5 Resolution/ Bits
Noise Free where Sample Time > 1000mS 15,000/13.75 Resolution/ Bits
Electrical
Power Supply Voltage 2.1 3.0 3.6 V dc
Power Supply Voltage 50 mV ac pk-pk
Power Supply Current
Normal Mode on Constantly 40 45 mA
Sleep Mode 5 20 uA
Environmental
Operating Temperature Range -40 85 C
Storage Temperature -40 85 C
Humidity 0 95 %RH

 

Battery Life in Low Power Mode Generating Results at 3Hz Usage Battery Life
Pair AA Cells Constantly On 1 Month
Pair AA Cells 12 sessions per day of 5 minutes 2 Years
Pair D Cells Constantly On 2.5 Months
Pair D Cells 12 sessions per day of 5 minutes 5 Years

 

No Information Available.

No Information Available.