Mantracourt Electronics Limited
T24 Technical Manual
70
T24-WSS [Wind Speed Sensor]
Overview
The T24-WSS wireless anemometer is built on the same technology as previous Mantracourt wireless sensors
interfaces offering the same sleep and wake functionality and operation with peripheral devices including
handhelds, USB base stations and GPRS data loggers.
The Anemometer features a high quality 3-cup rotor pressed on a stainless steel shaft with rugged Delrin body
with bronze Rulon bushings
The output value of the anemometer can be calibrated and configured to the user’s requirements and measure
over the range 5 to 125 mph.
Accuracy:
•
0.5mph from 5 to 10 mph
•
± 4% from 10 to 125 mph
The T24-WSS is powered either from internal batteries or an external supply. For applications which require high
sampling rates for long periods Mantracourt’s PowerPack1 and SolarPanel1 (PP1 & SP1) offers an ideal solution.
Communications
To configure the device you will use the Read and Write mechanisms described in the
Data Packet Structures
section to read and write parameters and execute commands.
Parameter List
Parameter
Command
Number
Description
Native
Data
Type
Read /
Write
ID
3
Read the unique identifier ID for this device. (3 bytes)
BINARY 3
bytes
R
Version
53
Read the firmware version.
FLOAT
R
Channel
11
Radio Channel
UINT8
RW
EncKey
15
The radio encryption key to operate on. Requires
power cycle or Reset to enable.
Not supported in this
release.
BINARY
16 Bytes
RW
Power
12
Set or read the output power level. (0-100%)
UINT8
RW
Name
10
Set or read a user defined name. (11 characters)
STRING
11 Bytes
RW
Model
51
Read the model number of the device.
STRING
11 Bytes
R
WakeChkInt
16
Set or read the interval in milliseconds that a sleeping
device will wake to request a full wake from the base
station. (default 3000)
UINT16
RW
UseCSMA
18
Select whether to use
Carrier Sense Multiple Access
techniques on transmission
.
Value
Description
0
Disabled
The
Carrier Sense Multiple Access
will be
disabled.
NOT RECOMMENDED
1
Enabled
The
Carrier Sense Multiple Access
will be
enabled.
See
Unslotted CSMA/CA
in
Appendix A
UINT8
RW
BattLevel
69
The voltage measured on the battery.
FLOAT
R
BattLowLevel
110
Set or read the battery voltage at which the low
battery flag will be set in all received packets and in
the Status parameter).
FLOAT
RW
LowPowerMode
75
Defines power save mode.
0 = Awake all the time and transmit at TxInterval.
1 = Sleep. Wake at TXInterval, acquire value, transmit
value, sleep.
UINT8
RW