FT Technologies FT702LT - Page 45

Section 6 Parameter Settings
45 FT702LT Flat Front Wind Sensor Manual
6.4.12 HT.3: Limit Heater Settings
Command
Parameter
HT (current and under-voltage limit)
Command
Syntax
SET Sensor:
$<listenerID>,HTL<CurrentLimit>,<UVoltLimit>*<checksum><cr><lf>
$aa,HTLxx,xx*hh<cr><lf>
QUERY Sensor:
$<listenerID>,HT?L*<checksum><cr><lf>
$aa,HT?L*hh<cr><lf>
FT702LT output:
$<talkerID>,HT=<CurrentLimit>,<UVoltLimit>*<checksu
m> <cr><lf>
$aa,HT=x.x,xx*hh<cr><lf>
Parameters
<CurrentLimit>
01 to 60
Heater Current Limit in steps of 100mA. Valid values of the current
limit are in the range 01 to 60. That is, 100mA to 6.0A.
(Factory default is 40 = 4.0 Amps.)
<UVoltLimit>
09 to 17
Heater Under Voltage Limit in Volts. If the supply voltage falls below
the under voltage limit, the heater will be turned off, until the supply
returns above the limit. (Factory default is 09 = 9 VDC.)
Examples
Example 4
Set the FT702LT heater current limit to 3.3A and set the under voltage limit to 10 VDC.
Verify that the command has been accepted.
Message
Comment
$01,HTL33,10*//<cr><lf>
Set current and voltage Limit
$01,HT?L*//<cr><lf>
Query heater settings
$WI,HT=3.3,10*10<cr><lf>
FT702LT
response
Description
The HT command may be used to set the FT702LT heater parameters such as the
maximum current and under voltage limit of the heaters.
The Heater Limit Settings are only available from build version 22 and above.