Operation
Open Collector (R1)
Indicator LED
All possible segments shown in this illustration. The instrument's
software controls which segments are shown at any particular time.
Only the bar graph and GF logo are visible when the unit is turned off.
Warning LED will be lit when No Sensor or Wrong Sensor is detected
in Digital (S
16
9900 Transmitter Start-Up Guide
Mechanical Relay (R2)
Indicator LED
L) mode.
3
UP, DOWN keys
Scroll through Menu options or adjust values during editing
Press both together to exit a menu or escape without saving
Backlight Sensor
(do not block)
Mechanical Relay (R3)
Indicator LED
ENTER
RIGHT key
Select item or character to edit
ENTER
Warning LED
Bar Graph
Units of Measure
(GPM, pH, sec, %, etc.)
Value
Label
Menu Indication
Menu Navigation Keys
ENTER key
Access menus
Save changes