Teracom TCG120, Руководство пользователя

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TCG120 _R1.1 - March 2015 Page 11
7.2. Setup page
7.2.1. Input/Output
7.2.1.1. Sensors
The sensors descriptions up to 20 symbols can be set in this section. These descriptions will appear
in the monitoring page, XML data, SMS and Email alerts.
7.1.1.2. Digital inputs
The digital inputs descriptions (up to 20 symbols) and states (up to 11 symbols) can be set in this
section. These descriptions and states will appear in the monitoring page, XML data, SMS and Email
alerts.
7.1.1.3. Analog inputs
The analog inputs descriptions (up to 20 symbols) can be set in this section. These descriptions will
appear in the monitoring page, XML data, SMS and Email alerts.
For every analog input field “Unit”, “Multiplier” and “Offset” parameters are available to convert
the raw voltage input to meaningful engineering units if required. The shown value is calculated by:
DV[Un] = (AV – OF) * MU
Where:
DV – displayed value;
Un – unit;
AV – real analog voltage from source;
MU – multiplier in dimension [parameter/Volt];
OF – offset.
Example:
For humidity sensor HIH-4000-003 following parameter (coming from data sheet) should
be set for fine work:
Unit - %RH
Offset - 0.826
Multiplier - 31.74, the value is inversed of slope parameter (1/0.0315);
If the output voltage of this sensor is 3.198V on the monitoring page will be shown
75.28% RH: