Figure 36
WS90 and WS85 are weather stations equipped with
piezoelectric rain gauges. To make your rain data more accurate,
you can calibrate the rain sensor accuracy by yourself:
1. A reference is needed to record the rainfall value, and it is also
important to be able to record the rain rate. Our WH40 rain
sensor can be used for this purpose.
2. You can set five rain gain parameters: Piezo Rain1: Rain5. We
usually leave Rain1 as it is unless you can confirm it consistently
produces the same result, and then you can adjust this.
3. Please ensure that you record rain data as follows: set rain4
gain to 6/7.5, which equals 0.8. For easier management, set rain2,
rain3, and rain5 all to 0.8 for now. Only when different rain rates
are recorded, divide the ws90 rain by 0.8 to get 1.0 rain, and then
recalculate (reference/ws90/0.8) to precisely adjust the
corresponding rain gain setting.
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