Gill Instruments Ltd
Intrinsically Safe WindObserver Anemometer Page 25 Issue 10
Doc. No. 1360-PS-0001 May 2015
7. CONNECTION TO A PC OR OTHER DEVICE
Connection to a PC or other device requires the use of:
1) The specified Intrinsically Safe Power Supply Unit Interface – MUST BE USED
UNDER ALL CIRCUMSTANCES, CERTIFICATION DEPENDS UPON THIS.
2) Power Supply Interface to PC / Other device cable – e.g. Digital RS232 9 way “D
Type” connector.
The IS Power Supply Unit supplies power to the anemometer electronics and provides
conversion of the RS422 signal sent by the anemometer to a RS422 or RS232 signal for a
PC. An RS422 or RS232 to USB converter may be required to interface with some PC’s.
The anemometer outputs wind data through a single 20 way circular connector in the
base. Details of the pin allocations can be found on Page 20. Data is provided in Digital
format.
Connecting to a PC or External Device using the RS422 Output
Maximum suggested RS422 approved twisted pair screened cable length is 1000 Metres.
Connecting to a PC or External Device using the RS232 Output
Maximum suggested RS232 approved screened cable length is 25 Metres.
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