Emerson Process Management OXYMITTER 4000 IM-106-340 - Manual (Page 75)

Instruction Manual
IM-106-340, Rev. 4.0
May 2006
6-3
Oxymitter 4000
Figure 6-3. LOI Features
START UP OXYMITTER
4000 CALIBRATION Refer to Section 9: Maintenance and Service, for calibration instructions.
NAVIGATING THE
LOCAL OPERATOR
INTERFACE
Overview The Local Operator Interface (LOI), shown in Figure 6-3, utilizes a bright blue
gas-fluorescent display. Intensity is adjustable. There is an Infrared LED
source and a detector for each key. The detectors can detect a finger placed
above the button through the glass window. There is no need to open the
instrument in bad weather in order to access the electronics.
It should be noted that the Oxymitter 4000 also utilizes HART communica-
tions, permitting access to all instrument functionality anywhere the 4-20 mA
signal terminates via a HART model 275/375 handheld communicator.
Lockout The Local Operator Interface (LOI) has a lockout feature that prevents nui-
sance actuation by someone brushing against the glass window, raindrops,
dirt, insects, etc. This lockout mode is automatically established when no but-
tons are pushed for 30 seconds (default). This countdown to lockout is con-
figurable.
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Selection
Arrow
Touch
Confirmation
LED
LCD
Display
Window
Selection
Arrow
Selection
Arrows