User Manual For DATCOM Components

33
Setup and installation first example:
Measuring the energy used via the electricity meter at channel D
1
(19).
- Install electricity meter to the corresponding AC lines
- Connect the pulse output of the electricity meter to channel D
1
(19)
and „+5V“
- Activate channel D
1
(19) via the „Solar.access“ software
- Assign desired channel name (e.g. „Power Consumption“)
- Select unit (e.g. „kWh“)
- Enter conversion factor
Setup and installation second example:
Measuring wind speed using wind speed sensor at channel D
2
(20).
- Install wind speed sensor in the proper position
- Connect the wind speed sensor to channel D
2
(20) and „+5V“ or „GND“
- Activate channel D
2
(20) via the „Solar.access“ software
- Assign desired channel name (e.g. „Wind Speed“)
- Select unit (e.g. „km/h“)
- Enter conversion factor
NOTE The length of the sensor cable should not exceed 30 m
(65.6 ft) so that measurement results are not distorted.
Digital Inputs
(continued)
Analog Input
for Current
Signal
The analog input (23) is used to connect a sensor using a standard 20 mA
current interface. Analysis can only take place using the „Solar.access“
software.
Channel assignment example:
- Connecting a humidity sensor
with a current signal to the
analog input (23)
Functional principle:
- A humidity sensor with a cur-
rent signal is an active sensor
that sends out current that rises
as the humidity increases.
- The sensor card the current
between both connections of
the analog input (23).
- The humidity level is derived
from the measured current
(23)