Instruction Manual PUC 28
16
5.2.4 External sensors (IN1 and IN2) [ SETTINGS / CONF. EXTERN ]
External sensors may be connected to the inputs IN1 and IN2. The parameter informs the
PUC 28 as to which sensor is connected to the corresponding input.
Parameter
description
Range of values
Default settings
External
sensors
IN1
– Temperature; IN2 – Humidity
IN1
– Temperature; IN2 – Pressure
IN1
– Pressure; IN2 – Humidity
IN1
– Pressure; IN2 – Pressure
IN1
– Temperature
IN2
– Humidity
Table 9: Possible settings for the external sensors
The units of the values shown in the display are adjusted automatically (temperature in °C,
humidity in %rH, pressure in Pa). The units of a pressure display can be subsequently
changed to hPa or
mbar in the following “Display” submenu.
5.2.5 Display [ SETTINGS / DISPLAY ]
In the default setting, the display shows three values:
Pressure
Temperature
Humidity
There are three submenus for these parameters. The display of each individual value can be
blanked in these submenus (blanking of the entire line). This makes sense if no sensor is
connected to the corresponding input or the internal pressure sensor is not used. If the value
represents a pressure, the units can be selected (Pa, hPa or mbar). The range of values for
the corresponding channel depends on the setting in the menu branch “CONF. EXTERN” that
was used to specify which sensor is connected to the corresponding input.
Channel *
Parameter description
Range of values
Default setting
INT. PRESS.
IN1-P
IN2-P
Units of pressure for the
display of the internal or
externally connected
sensors
Pa
hPa
mbar
OFF - no display
Pa
IN1-T
IN2-H
Whether the display is
blanked or not
ON
OFF
ON
Table 10: Display settings
* The channels are displayed
according to the selection made under “CONF. EXTERN”.
