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Solutions in Load Cell Technology
    
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Barry Way, Newport
Isle of Wight, PO30 5GY
United Kingdom
TEL: +44(0)1983 249264
FAX: +44(0)1983 249266

 

T24-HS and T24-SA Wireless Telemetry Acquisition Module and Handheld Indicator

T24-HS & T24-SA Wireless Telemetry Acquisition Module & Handheld Indicator     T24-HS & T24-SA Wireless Telemetry Acquisition Module & Handheld Indicator

  • Features
  • Specification
  • Dimensions
  • Downloads
  • Suggested Instrumentation
  • Options
  • Applications
  • Very low power consumption for long battery life
  • Very small size - 18 x 40 x 7mm including signal conditioning module
  • Worldwide license exempt 2.4 GHz radio
  • Option of hand held remote display or PC interface for data capture
  • 2 way radio system for data integrity
  • Remote power on/off (sleep/wake)
  • 120 metre (400 feet) range maximum
  • Battery life up to 5 years in low power mode
  • Configured and calibrated via PC using base station with Telemetry Toolkit software provided
  • Internal or external antenna option

The T24-SA is a high performance strain gauge to radio telemetry converter module, offering precision measurement with high performance two-way telemetry. For use in wireless load/force/pressure/torque applications, this new design offers battery life of up to 5 years with lithium cells.

The licence-free 2.4 GHz radio provides a line-of-sight communication range of 120 metres (400 feet), extendable by the use of a repeater. The use of the latest DSSS radio technology minimises local radio interference and ensures data integrity and security.
The wide temperature operating range and the robust technology ensures that the module it is not susceptible to harsh physical or electrical environment.

LCM Systems can supply the T-24 products integrated into various products, to form a wireless load cell system. There are several standard products which utilise these products, including the TELSHACK range and RILL.

Please contact LCM's technical department to discuss your wireless load cell requirements.

General Radio

Parameter
  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
Range RAD24i (Integrated antenna)     120 (400) Metres (feet) *
Range RAD24e (External antenna)     200 (650) Metres (feet) *
Channels (DSSS)   16    
* Maximum range achieved in open field site with T24-SA at a height of 3 metres above ground and T24-HS held at chest height pointing towards the T24-SA.

Approvals
CE Logo Complies with EMC directive. 2004/108/EC The Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive, 1999/5/EC. FC Logo Family: RAD24sd Canada Industry 
IC:7224A-RAD24sd

T24-SA ­ Embedded Strain Gauge Digitiser
(Specification with 1000R bridge, 2.5mV/V, at 3V supply at 25 Deg C)

Measurement
  Min Typical Max Units
Strain Gauge Excitation Voltage 4. 5 5 5.25 VDC
Strain Gauge Drive Capability 85 - 5000 Ohms
Strain Gauge Sensitivity (FR) 3.2 3.3 3.4 +/-mV/V
Offset Temperature Stability   1 4 ppm/C
Gain Temperature Stability   3 5 ppm/C
Offset Stability with Time   20 80 ppm of FR (1)
Gain Stability with Time     30 ppm of FR (2)
Non Linearity before Linearization   5 25 ppm of FR
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

Electrical
  Min Typical Max Units
Power Supply voltage 2.1 3.0 3.6 V dc
Power Supply ripple     50 mV ac pk-pk

Power Supply current

  Min Typical Max Units
Normal Mode (1K Bridge)   60 65 mA
Standby / Low power mode   5 20 uA

Environmental
  Min Typical Max Units
Operating temperature range -40   +85 C
Storage temperature -40   +85 C
Humidity 0   95 %RH

Telemetry Acquisition Module and Handheld

T24-HS ­ Handheld Reader

Electrical
  Min Typical Max Units
Power Supply voltage 2.4 3.0 3.6 V dc

Power Supply

  Min Typical Max Units
Active   35 40 mA
Low power mode   120 160 uA
Estimated Battery life (using 2Ahr batteries)
Standby mode (Powered off)   1.5   Years
Continuous operation   40   Hours
Use a pair of alkaline AA batteries. Due to the higher voltage requirements of this device NiMh and NiCad batteries are not recommended.

Environmental
  Min Typical Max Units
IP rating   IP65    
Operating temperature range -10   +50 C
Storage temperature -40   +85 C
Humidity 0   95 %RH

Module Transmits & 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
t24-hs t24-sa drawing
Click here to download - T24-HS & T24-SA Datasheet

Click here to download - T24-HS & T24-SA Instruction Manual
T24-HA Wireless Telemetry Advanced Handheld Battery Powered Indicator

T24-SO Wireless Telemetry Serial Output Module
The T24-HS & T24-SA products form the wireless telemetry aspect of the TELSHACK-B, TELSHACK-D and RILL wireless telemetry load cell products. The T24-SA acquisition module, which is designed to operate in conjunction with the rest of the T24 range of wireless telemetry products, can be design and configured into a complete telemtry system, to meet customers application requirements. LCM Systems can assist with this.
  • Wireless shackle load cells
  • Wireless link load cells
  • Crane weighing
  • Cable tension measurement
  • Rotating machine force measurement 

 

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