Vaisala FS11P User Manual

Chapter 4 _________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 123
The output is the following:
ZERO SIGNAL: OK
>
or, in case of a failure in the receiver (PWC12), one of the following:
ZERO SIGNAL: FAIL
ZERO SIGNAL: NOISE HIGH
CHEC
The CHEC command has no parameters and it is used in calibrating the
optical measurement to display the one-minute average signal in internal
(frequency) units.
The display updating is terminated by pressing ESC. If you press any
other key, the updating will only be paused. In the beginning, the four-
location buffer, which is used to calculate the average, is filled with the
first value.
When the calibrator is installed, the value displayed in the message
should be the same as printed on the calibrator glass plate.
Give the following command:
>CHEC
The output is the following:
SCALED FREQUENCY AVE (1 MIN)
499.9938
499.9880
DRY ON and WET
The DRY ON and WET commands are used to check and adjust the
operation of the Vaisala RAINCAP
®
Rain Sensor measurement.
DRY ON
The DRY ON command is used to set the reference level of the dry
signal for the RAINCAP
®
signal normalization calculation. When giving
the DRY ON command, the sensor surface must be dry and also the
weather conditions must be dry.
The output is the following:
DRD DRY OFFSET 715.6

Vaisala FS11P Specifications

General

Brand	Vaisala
Model	FS11P
Category	Accessories
Language	English