NRG USER MANUAL
SymphoniePLUS3 User Guide
SymphoniePLUS3_DataLogger_Manual
Rev. 17
support@nrgsystems.com | Page 20
31 December 2018
Signal Conditioning Module (SCM) Card Slots
NRG SCM cards are small PCBs that, when inserted into the proper slots, configure the corresponding
channel on the SymphoniePLUS3 for a specific sensor output signal. SCM cards are used in channels 4-6
(counter channels) and 9-12 (analog channels)
Channels
The SymphoniePLUS3 Logger has 15 input channels; 6 are counters, 6 are analog, and 3 can be either.
Channels 1 – 3 and 13 – 15 (Counters)
Channels 1 through 3 and 13 through 15 have built-in sensor interfaces for both NRG anemometers and
for other anemometers such as the P2546A WindSensor, Thies First Class, Vector, etc.
Channels 4 – 6 (Flex; counter or analog)
Flex channels 4-6 can be configured for anemometers or analog sensors by plugging an SCM into the
SCM slot corresponding to that channel. The SCM provides the electronics to configure the input for the
connected sensor. The SCM also sets up the channel as a speed (frequency) or totalizer for sensors such
as tipping-bucket rain gauges or kWh meters.
When you insert the SCM, the correct type of sensor should be automatically detected by the logger and
only show programming options appropriate for that type of sensor.
Channels 7 – 12 (Analogs)
Channels 7 and 8 have built-in sensor interfaces for the NRG 200P wind vane, or other wind vanes with
similar output signals. Channels 9 through 12 are configured by plugging an SCM into the corresponding
SCM slot for that channel. The SCM provides the electronics to configure the input for the connected
sensor. Appropriate SCMs in analog channels 9 through 12 also describe to the logger whether the
analog channel is a vane or other type of analog sensor (relative humidity, barometric pressure,
temperature, etc.).