NRG Product Manual
LOGR-S Data Logger
NRG_LOGR-S_Manual
Rev. 1.0
[email protected] | Page 20
5 November 2021
Channel Configuration & Data Collection
Analog Sensors
LOGR provides
seven ports
for a total of
fourteen analog channel options
. These are used for
measuring parameters including solar radiation, PV temperature, ambient temperature, barometric
pressure, relative humidity, and more. The LOGR analog sensor ports have
12 V excitation
with a limit of
50 mA per port
.
Each port can be configured to support two single-ended sensors, each on a separate channel, or one
differential sensor. This totals
seven differential or fourteen single-ended sensors (or a combination
thereof).
LOGR has a variety of default sensors available, but generic sensors are also supported by
selecting the correct voltage level for the specified sensor. Note that the scale of (-75 to +75) mV is for
use with differential sensors only. All other measurement levels can be used for either single ended or
differential sensors. For complete analog sensor wiring instructions, see the Required
Tools
Sensor Connections section on page 37.
Voltage Level
Measurement Accuracy at 25˚C
(-75 to +75) mV
10uV
(-1.1 to +1.1) V
400uV
(-10 to +10) V
900uV
Both 1-second and statistical (average, max, min, and standard deviation) data are available via Modbus
registers. The web server home page provides a quick view of live data to ensure sensors are connected
and performing properly during setup.
Summary of Contents for LOGR-S
Page 1: ...LOGR S Manual 11 5 2021 1 ...
