PWS100 Present Weather Sensor - Campbell Scientific
PWS100 Present Weather Sensor - Campbell Scientific
PWS100 Present Weather Sensor - Campbell Scientific
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Section 7. Operation<br />
Option 10 of the configuration menu gives the PSU SHUT DOWN VOLTAGE<br />
menu (Figure 7-22). Enter the PSU input voltage level below which the<br />
<strong>PWS100</strong> will enter low power mode. Enter `0.0’ to disable this feature<br />
(default).<br />
FIGURE 7-22. PSU shut down voltage menu<br />
NOTE<br />
This feature is usually used to protect batteries from deep<br />
discharge. There is a hysteresis of 0.9V applied. For example, if<br />
the <strong>PWS100</strong> goes into low power mode at 10V it will return to<br />
normal operation when the voltage rises to 10.9V. Current will<br />
be limited to about 120 mA at 9V. Communications are still<br />
possible and a message “PSU voltage too low nn.n”, where nn.n<br />
is the supply voltage, will be output every 60 seconds.<br />
7.4.4 Top Menu Option 5 (Password)<br />
Choosing option 5 from the SETUP menu brings up the PASSWORD menu<br />
(see Figure 7-23). Pressing enter deletes the password. To set a password, type<br />
up to 10 alpha-numeric characters and press enter.<br />
FIGURE 7-23. Password menu<br />
7-30
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