Lacrosse WS-2510 Manual page 7

The configuration mode is activated by pressing touch screen field 29, "ALARM VALUES", for 3
seconds. The following diagram shows an example of a display with the configuration mode
activated.
You can exit the configuration mode by pressing the "END" key.
Illumination time for AC adaptor operation
The illumination time for AC adaptor operation ("line") is displayed in the "LIGHT" field (touch
screen field 1). A setting here is only meaningful when the weather station is powered by
means of the AC adaptor power supply.
The time displayed shows in hours and minutes how long the display is to remain lit after the last
touch screen field has been pressed.
A value of 0:00 means that the illumination will never come on.
A value of -:-- (appears after 9:59) means that the illumination will stay on continuously until it is
turned off manually ("LIGHT OFF" in the main display).
- Touch screen field 1 must be pressed in order to set the required ON time.
- The associated display will now flash:
and the lower touch screen field will change to the following form:
- The required value between 0:00 and 9:59 as well as "-:--" can now be set using the touch
screen fields "+" and "–". It is possible to run through the display more quickly by pressing
the relevant touch screen field for longer.
- When the required value has been set, you can exit set-up by pressing the "END" key. The
value is now stored.
Illumination time for battery operation
The illumination time for battery operation ("batt") is displayed in the "LIGHT" field (touch screen
field 2). A setting here is only meaningful when the weather station is powered exclusively by
batteries.
The time displayed shows in seconds (up to 99) how long the display is to remain lit after the last
touch screen field has been pressed.
A value of 0 means that the illumination will never come on.
- Touch screen field 2 must be pressed in order to set the required ON time.
- The associated display will now flash:
and the lower touch screen field will change to the following form:
- The required value between 0 and 99 seconds can now be set using the touch screen fields
"+" and "–". It is possible to run through the display more quickly by pressing for longer.
- When the required value has been set, you can exit set-up by pressing the "END" key. The
value is now stored.
Setting the temperature display units
The display units for temperature are shown in touch screen field 4 at the top right.
The factory setting is ºF.
- By touching field 4 the display units can be switched between ºF and ºC.
Calibration of the rainfall reading indicator
The rainfall measuring system is delivered with a very high accuracy, so that normally no
calibration is required.
A calibration only becomes necessary when very high accuracy is required for
professional use or for special purposes.
Before starting the calibration of the rainfall reading indicator, set any existing summed rainfall
value in the normal display mode back to zero (see section "Rainfall measurement").
For the exact calibration proceed as follows:
1. Allow 6.1 cu. in. of water to trickle continuously and distributed evenly into the funnel over a
period of 10 minutes. In doing so, there must be a period of at least 15 seconds between the
individual rocker movements. If the rocker tilts more quickly, the amount of water flowing
through is too great and the flow must be reduced.
2. After the water has completely run through, it is necessary to wait for a further period of 6
minutes. The total amount indicated should now be 0.3 in.
3. If a different value is displayed, then the rocker value should be recalculated as follows:
New rocker value = 0.3 x current rocker value
Actual value (display when filled with water)
The calibration value of the rainfall per rocker stroke for the rain sensor is shown in touch screen
field 8 (top center). It is always given in ml/rocker stroke, the units on the right are the units for
the subsequent display of rainfall!