Mantracourt Electronics Limited
T24-SAf Fast Strain Gauge Acquisition Module User Manual
24
Specifications
General Radio
Min
Typical
Max
Units
License
License 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)
100 (325)
Metres (feet)
*
Range RAD24e (External antenna)
200 (650)
Metres (feet)
*
Channels (DSSS)
16
*
Maximum range achieved in open field site at a height of 3 metres above ground.
T24-SAf
Specification with 1000R bridge, 2.5mV/V, at 3V supply at 25°C
Measurement
Min
Typical
Max
Units
Strain Gauge Excitation System
4 Wire
Strain Gauge Excitation Voltage
4. 5
5
5.25
V DC
Strain Gauge Drive Capability
85
-
5000
Ohms
Maximum Gauge Sensitivity (FR)
3.2
+/-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
Internal Resolution
16,000,000/ 24
Resolution/Bits
Noise free resolution is 8000/13 Bits for a 10 second sample period
1.
From original offset at any time.
2.
First year.
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
Physical
PCB Dimensions
17 x 37.5 x 6.5mm
Approvals
CE
Complies with EMC directive. 2004/108/EC
The Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive,
