Operating Instructions

Table Of Contents
LCD Contrast (4.10.)
The factory setting is for optimum visibility at room temperature and in average light conditions.
Extremes of temperature will lessen the contrast.
Values Range: 0 (low contrast) to 20 (high contrast). Default: 10
Adjust the value to improve visibility at room temperature and in average light conditions.
Change the value in small steps to ensure you can continue to read the display.
Secondary Value (4.11.)
Use the secondary value to capture the menu navigation path to any viewable parameter. Once
the navigation path is stored, the value of that parameter will be displayed in Measurement
mode as the secondary value.
While in Parameter view of the current parameter, press the decimal point key. This stores the
path to the current parameter in the Secondary Value, and displays the value for that parameter
on the LCD display when in Measurement mode. See The LCD Display (Page 47) for an
illustration.
Memory Test (4.12.)
Allows verification of the RAM, EEPROM, and Flash memory of the SITRANS LR250.
LCD Display IDLE No test in progress.
BUSY Test in progress.
PASS Memory test successful.
FAIL Test failed.
Err1 Test returned unexpected results.
P Oxcafe Test passed with result data.
F Oxcafe Test failed with result data.
Handheld programmer
entry
to
Any numeric key from 1 to 9 activates test.
Press RIGHT arrow to edit then press any numeric key from 1 to 9 to activate the test.
The reading will display BUS and then the test result text.
Communication (5.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated.
Parameter reference
SITRANS LR250 with mA/HART
146 Operating Instructions, 10/2019, A5E32220602-AG