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○ You can configure them to be displayed in units of measurement °C, °F or in a custom unit of up to 8 characters, which will not show on
the display;
○ The maximum resolution for linear sensors corresponds to a ratio between the user range and the maximum resolution of the chosen
sensor.
● Internal Diagnostic Sensors:
○ Inform the voltage of the possible LogBox Wi-Fi power supply sources;
○ The maximum resolution for the internal diagnostic sensors is 0.01 V;
○ You can configure them to be displayed with 0, 1, or 2 decimal places;
○ The unit of measure for these sensors is Volts and no unit symbol is displayed.
Refer to the Technical Specifications chapter to check these signals’ accuracy. Refer to the Installation chapter to check these signals’ connection.
An analog/digital (A/D) converter with high resolution and accuracy is used to read the sensors connected to the analog channel inputs. In the
desired scan range, all the analog channels enabled will be read.
Each type of input signal has a valid measuring range (refer to chapter
Technical Specifications ) for more information. However, the device can
typically measure signals which slightly exceed the limits of this range. The amount it can measure beyond it, however, depends on the type of
input configured and can vary between different devices.
The following table describes the input types supported by the device, the device’s signal conditions and their respective indications.
5.1.1 MEASUREMENT AND INDICATION OF INPUT TYPES
INPUT TYPE INPUT SIGNAL CONDITION INDICATION
Pt100
Within range Read input value
Pt100 with one or more wires disconnected ----
will be displayed
Slightly above the upper limit -22000 will be logged in the memory
Slightly under the lower limit Read input value *
Far above the upper limit
vvvv
will be displayed
32767 will be logged in the memory
Far under the lower limit
nnnn
will be displayed
-32000 will be logged in the memory
Thermocouples
J, K, T, E, N, R, S, and B
Within range Read input value
Open Thermocouple
----
will be displayed
-22000 will be logged in the memory
Slightly above the upper limit Read input value *
Slightly under the lower limit Read input value *
Far above the upper limit
vvvv
will be displayed
Far under the upper limit
nnnn
will be displayed
-32000 will be logged in the memory
Voltage
0 to 50 mV
Within range Read input value converted into User Range
Disconnected signal
----
will be displayed
-22000 will be logged in the memory
Slightly above the upper limit Read input value converted into User Range *
Slightly under the lower limit Read input value converted into User Range *
Far above the upper limit
vvvv
will be displayed
32767 will be logged in the memory
Far under the lower limit
nnnn
will be displayed
-32000 will be logged in the memory
Voltage
0 to 5 V
0 to 10 V
Within range Read input value
Disconnected signal 0 V value converted into User Range
Slightly above the upper limit Read input value converted into User Range *
Slightly under the lower limit Read input value converted into User Range *
Far above the upper limit
vvvv
will be displayed
32767 will be logged in the memory
Far under the lower limit
nnnn
will be displayed
-32000 will be logged in the memory