Section 4 Service, Configuration & Testing
19
FT742-SM (RS422 & RS485) Sensors
– User Manual
5 Evaluation
5.1 Evaluation Pack
To help users carry out a test bench assessment of the FT742-SM sensors, FT Technologies sells two USB test
cables allowing connection to the RS422 and RS485 communication variants via USB PC connection.
Acu-Test Evaluation Pack
– This kit includes a CD with user manuals, the Acu-Vis software installation files and
a USB test cable. The test cables require a 6-30VDC external power supply capable of providing up to 2A.
Alternatively the FT062 power supply can be used (a regional C13-style adaptor is necessary for mains
connection).
The FT058 is used for RS422 sensors.
The FT059 is used for RS485 sensors.
The user can view the communication settings, configuration information, serial number and product type, with
the ability to modify a limited number of settings (for example enabling/disabling the heater, or changing the
heater set-point).
Caution: FT742-SM sensors should only be connected to the Acu-Vis PC test program.
Warning: Live connection/disconnection of the power and/or sensors during live operation, or miswiring
of the pow
er leads could damage the equipment and is not covered by FT’s standard warranty terms
5.2 Acu-Test Software
The Acu-Vis software automatically detects the USB test cable and wind sensor when plugged in and power
provided to the sensor. The program will detect the wind sensor as long as it is powered up and working. The
dials then show the real time wind speed and direction from the wind sensor as shown in
Figure 7: Acu-Vis Live Display
– Home Page (example)
1.
“Wind Reading” Tab – live sensor readings
2.
“Heater Settings” Tab
3.
Wind Speed Dial
4.
Wind Direction Dial
5.
Wind Speed Dial Range Selection
6.
Wind Speed (numeric)
7.
Wind Direction (numeric)
8.
Current Heater Set-point
9.
Sensor Communication Baud Rate
10.
Software Version on Sensor
11.
Sensor Response Delay
– user defined
12.
Product Name
– of attached sensor
13.
Product Version
– of attached sensor
14.
Serial Number
– of attached sensor
15.
Cable Name
– type of attached cable
16.
Serial Number
– of attached cable
