17
DIRECTION VANE TESTING
The potentiometer in the direction vane has a
nominal resistance of 10000 (10K) ohms.
With the signal cable to the direction vane
disconnected from the transmitter an ohm meter
may be used to measure approximately 10000
(10K) ohms resistance between the (+) & (-)
excitation terminals.
The resistance between the direction vane signal
lead and either of the excitation terminals should
be less than 10000 (10K) ohms.
If the resistance values differ radically from the
above then the vane or the signal cable likely
contains a fault.
The signal lead of the wind vane will indicate an
open circuit if the vane is positioned in the dead
band which is centered about North.
DIRECTION VANE SIMULATION
The wind vane may be simulated using a potenti-
ometer with a nominal resistance of 10000 (10K)
ohms.
Summary of Contents for A70-DL0
Page 5: ...5 Figure 5 Direction Vane Mounting Diagram...
Page 6: ...6 Figure 6 Transmitter Connection Diagram...
Page 7: ...7 Figure 7 MultipleTransmitters with One PowerSupply...
Page 10: ...10 Figure 9 Poor Wind Sensor Placement Over Vertical Wall Figure 10 NorthAlignment Mark...
Page 20: ...20 WWW COMPTUS COM Phone 603 726 7500 Fax 603 726 7502...
Page 22: ...22 WWW COMPTUS COM Phone 603 726 7500 Fax 603 726 7502...
