La Crosse Technology WS-7015 User Manual
Page 10
Caution!
Fast pouring will corrupt the measuring results! Pour the water so slow into the
funnel, that there is no slack water in the funnel at any time.
Recommendation!
In order for the water not to run too fast into the funnel, thus causing a faulty
calibration, place a small cup made of synthetic material into the funnel. Prepare
the cup by piercing a small hole into the bottom using a sharply pointed tool. The
water will now enter the funnel very slowly drop by drop.
Because of the 5.118in (130mm) diameter of the funnel, representing an area of 20.574
in
2
(0.0133m
2
), the amount of 1 Liter of water will yield a nominal rain volume of 2.97 in.
After the entire amount of water has run through the funnel the actual value (displayed
value) will show on the display, in the ideal case 2.96 in.
The ratio of Target Value to Actual Value will yield the Calibration Factor. Since this
calibration factor may have already been entered at an earlier date, it has to be included
in the calculation.
The new Calibration Factor can be computed in the following equation:
Target Value (e.g. 2.96 in) x Old Calibration Factor
New Calibration Factor
=
Actual Value (Display after passing 1 Liter of Water)
The old calibration factor can be viewed by simultaneously pressing the
(←
←
←
←
) and (→
→
→
→
) keys as well as the "Calibr." Key in Calibration Mode. Select the display
field for the Rain Volume Sensor by use of the (←
←
←
←
) key.
Correct the calibration factor to its new value by use of the "+" and "–" keys and possibly
the "Fast" key.
By pressing the "Store" key the set value is stored and the display will return to the
normal operating mode.
Change of Units
If the "Units" key is pressed in Calibration Mode, the display section "Rain" will allow the
selection of the units inch or mm and the display section "Air Pressure" will allow the
selection of the units inHg or hPa, and the display section "Indoor temperature“ will
allow the selection of the units ºF or ºC.
Manual Time Setting
To do so press the Arrow (←
←
←
←
) key twice in Calibration Mode. The display will show time
and date only. Setting is then performed according to Table 1. After entering the time and
date the "Store" key must be pressed.
Table 1: Setting of Time and Date
Function
Key
Hours
-
Minutes
+
Month
Units
Date of Day
Sensor
Storing
Store
Addressing of Remote Sensors WS 7015-22, WS 7015-28 (optionally) and Remote
Outdoor Sensor
The outdoor sensor concept allows the simultaneous operation of up to 8 outdoor
sensors. Their data are displayed in the upper right display section for the outdoor values.
Each sensor in the system is assigned a sensor address, allowing the receiver to
integrate the sensor into the overall system free from interference. By default the Remote
Outdoor Sensor included in the
shipment is set to be Sensor 1, while
the types WS 7015-22 and WS 7015-
28 are both set to be Sensor 2. The
programmable assignment can be
seen from opposite illustration.
The addressing can be performed by
the user by means of coding bridges
(jumpers) on the wiring side of the
sensor‘s PCB. To do this the protection
hood has firstly to be removed by
unscrewing from the Remote Outdoor
Sensor and then the housing must be
opened by removing the screws on its
back. Both types WS 7015-22 and –28
only need to have their back covers
unscrewed.
Following this the coding bridges can be set according to the addressing table opposite.
Change of Base Address for Sensors with fixed Assignment
Setting of addresses for the Remote Indoor Sensor, Remote Rain Volume Sensor and
Remote Wind Sensor is not required under normal operating conditions.
Multi functional operation is a special feature, allowing to generally operate an arbitrary
number of Base Units within the transmission range of the Remote Sensors. One Base
Station can be placed in the living room, one in the office, etc., all displaying the same
data.
If in every room, in which a Base Station
(Display Unit) has been placed, the indoor
temperature of this particular room needs to
be displayed on the upper left section of the
LCD, then the indoor sensors for
temperature/humidity and air pressure need
to be assigned different base address
according to the illustration opposite.
In order for the Base Station to exclusively
receive its assigned sensor here also a
respective address has to be set. To change
the base address in Calibration Mode the
(←
←
←
←
)key must be pressed three times and the
desired base address selected by use of the
"Indoor" key.
The base addresses of the Wind Sensor and the Rain Volume Sensor can also be
changed in this operating mode which however is only necessary in very rare cases. A