Start Up Oxymitter 4000 Calibration; Navigating The Local Operator Interface; Overview; Lockout - Emerson Rosemount Oxymitter 4000 Instruction Manual

Instruction Manual
IM-106-340, Rev. 4.3
July 2017
Figure 6-3. LOI Features
START UP OXYMITTER
4000 CALIBRATION
NAVIGATING THE
LOCAL OPERATOR
INTERFACE

Overview

Lockout

Refer to Section 9: Maintenance and Service, for calibration instructions.
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.
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.
Oxymitter 4000
6-3