DAVIS WeatherLink Addendum page 19

For alarm output
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Contact Technical Support for more detailed information on how derived
parameters are calculated.
Clear
Press the Clear button to clear the alarms for this output only. This function
clears both the dialog box entries and the settings in the datalogger. You
must press this button for each of the individual outputs you want to clear.
Contact Specifications
The "contact" closure is provided by a photo-coupled MOS device. Because
it is a solid-state device, it is not subject to arcing and contact-welding as are
mechanical relays. However, since it is a solid-state device, it will be
damaged by operation beyond its ratings, which are:
Nominal Load Voltage: 28 V AC or 48 V DC, Maximum
Peak Voltage:
Load Current:
ON Resistance:
Note: Upon power up (powering the console or Envoy), the datalogger will
briefly test all four outputs by closing the circuit (turning on the output). It is
recommended that you disconnect any equipment attached to the datalogger
outputs before rebooting the console or Envoy.
± 60 V, Maximum
± 1.8 A, continuous Maximum at 77°F (25°C),
derated to 0.7 A at 185°F (85°C)
0.12 Ohm, Maximum
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