KEYPAD SYSTEM
The LIT25 has a simple 2-key calibration system. Operating and calibration modes are shown on the
4-digit display. The keys are used to calibrate the LIT25, and to view operating mode and functions. If
the keys are not used for 10 minutes, the LIT25 will automatically go to
NORMAL MODE
. Except in
OUTPUT SIMULATION
mode, the Relay and 4-20mA output are not affected by use of the keys until your
calibration is stored.
MENU - FLOW CHART
The following diagram shows the LIT25 Menu system. Arrows show the directions to leave a box.
Pressing a corresponding key will move to the next box in the direction shown. Numeric values are
changed by pressing and holding the
Ç
or
È
keys.
At the bottom of the Menu is a
YES?
prompt. To store the calibration values permanently (even through
power failure), press the
Ç
key. If the
È
key is pressed from the
YES?
prompt no changes will be
stored and the system will return to
NORMAL
mode.
Page 6
LIT25 Level Indicating Transmitter
Manual Series 3.5.1
PERCENT
INCHES
CM
LIT25
LEVEL INDICATING TRANSMITTER
ECHO
RELAY
CALIBRATION KEYS
POWER
CONNECTION
4-DIGIT LCD DISPLAY
SENSOR
CONNECTION
4-20mA
CONNECTION
GND
+
–
