YSI 6200 - Manual (Page 103)

YSI 6200 DAS USER Manual
YSI/Massachusetts 508.748.0366, Fax 508.748.2543 Page 9-11
No solar radiation
data displayed Use DVM to measure
miliVolts output directly on
pin A to C.
Under a fluorescent light you
should read 200 to 300
miliVolts. If sensor has no output under
fluorescent or sun light.
Return unit to factory 5.4
Rain Gauge
The Rain Gauge is connected through its own connection on the bottom of the 6200 DCP. In
order for EcoWatch 6200 auto configuration to work, the rain gauge sensor cable connector has
to be mated to the 6200 DCP. This connection activates the “HELLO” signal on pin C.
The output pulses occur each time the sensor bucket tips, these pulses are present on pin A.
Shorting pins A to B with a jumper simulates the rain sensor output.
SYMPTOMS POSSIBLE CAUSE ACTION REF
During setup, the
rain gauge is not
detected by the
EcoWatch 6200
configuration
wizard Hello signal is not present Disconnect the rain gauge cable
from the 6200, use a multimeter
or DVM to check the 6200 rain
gauge connector. Pin C to D
should be 3.5 VDC or greater. 5.3
The 6200 rain gauge connector
hello signal (5VDC)is present
on pin C. Check the rain gauge connector
for continuity between pins C and
D. 5.3
Tilt bucket assembly
inoperative, or
electromechanical switch
inside rain gauge is defective Disconnect the rain gauge cable
from the 6200 and perform a
continuity test from pin B to A.
These pins should indicate open
circuit, move the tilt bucket to the
other side, the continuity test
should indicate a brief short (0
ohms) and return to open. 5.3
Rain gauge was
detected, but there
is no output
If rain gauge works on another
system. 6200 electronics damaged, return
to factory. 5.3