KEYPAD SYSTEM
The TFT32 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 TFT32, and to view operating mode and functions. If the
keys are not used for 10 minutes, the TFT32 will automatically go to
NORMAL MODE
. Except in
OUTPUT SIMULATION
mode, the Relay and RS485 serial output are not affected by use of the keys
until your calibration is stored.
MENU - FLOW CHART
The following diagram shows the TFT32 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 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.
TFT32 Tank Farm Transmitter
Manual Series 2.4
Page 7
PERCENT
INCHES
CM
TFT32
Tank Farm Level Transmitter
mA
RELAY
CALIBRATION KEYS
POWER
CONNECTION
4-DIGIT LCD DISPLAY
SENSOR
CONNECTION
RS485 NETWORK
CONNECTION
GND
+
–
