DEVAR d-RTTI, User Manual

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3.0 Startup Sequence
The start up sequence occurs after applying power to the unit.
The sequence is: all segments lit “
8.8.8.8. ”; then “ type ”, followed
by “ rtti ”; then “ ver ”; followed by two numbers ddmm and yyyy that
represent the day, month, and year of the revision; and then “ run ”.
After the startup sequence is complete the detected temperature is
displayed and the unit is operational.
4.0 Configuration
To enter the configuration mode press all three buttons while
powering up the unit or, while the d-RTTI is operational, press and
hold all three buttons for approximately five seconds. The unit will
enter the startup sequence by lighting all segments “
8.8.8.8. ” and
then displaying “ COnF ”. Pressing any button at this point will
produce the first Configuration Prompt on the list of configurable
operating parameters below.
Configuration Parameters
Prompt Operation
Selects whether the temperature will be
displayed in ºF or ºC
Selects the temperature value that will
produce a 20 mA output
Selects the temperature value that will
produce a 4 mA output
Adds a small amount of offset or zero shift
to the displayed temperature; this value is
normally set to zero but can be used to
make fine adjustments to the temperature
measurement
Note: Figure 4 on page 9 presents this information in a
flowchart