User's Manual
bf1systems IRTPTMS V3 System Description
bf1systems IRTPTMS V3 System Description V1_01
1_01
Page 10 of 15
RD096 110124
Tyre Carcass Surface Temperature (±17.5° & ±45° Field of view)
Comment
Min
Nom
Max
Units
Measurement Range
-
-40
-
215
°C
Resolution
10-bit
-
0.25
-
°C
Accuracy
(Under isothermal
conditions)
Ambient temp of 0 - 50°C and target temp of
0 - 60°C
-
±0.5
-
°C
Ambient temp of 0 - 50°C and target temp of
61 – 180°C
-
±2
-
°C
Ambient temp of 0 - 50°C and target temp of
181 – 215°C
-
±3
-
°C
Ambient temp of 0 - 100°C and target temp
of 0 – 120°C
-
±1
-
°C
Ambient temp of 0 - 125°C and target temp
of 0 – 180°C
-
±2
-
°C
Ambient temp of 0 - 125°C and target temp
of 181 - 215°C
-
±3
-
°C
Acceleration
Comment
Min
Nom
Max
Units
Recognition threshold
for turning wheel
(RS == 1)
-40°C to +90°C
2
11
20
g
> 90°C
2
14
26
g
Recognition threshold for
resting wheel (RS == 0)
-40°C to +90°C
1
10
19
g
> 90°C
1
13
25
g
7.2.8 Byte format
Start bit
None
Data bits
8, MSB first
Stop bit
None
Code specification
Conditioned diphase code
Description
flank at the start of a bit interval
no flank in the middle of a "1" interval
flank in the middle of a "0" interval
Data format
Binary
Transmission rate
9.6 kbps +/- 10%
7.2.9 Specification for HF transmitter
7.2.9.1 Frequency
433 MHz Version
Modulation
Frequency shift keying (2-FSK)
Frequency f
nom
@ 25°C
433.920 MHz 35 kHz
Frequency drift overall (aging, temperature)
f
nom
85 kHz
Logic levels
Data = 0
f
nom
- f/2
Data = 1
f
nom
+ f/2