Emerson Rosemount OCX8800 - Verify Configuration - Fieldbus Electronics; Figure 3-2 Hazardous Area OCX 8800 Defaults - Fieldbus Electronics

Instruction Manual
IM-106-880C, OI
Section 3: Configuration and
Startup
April 2017
Verify Configuration - Fieldbus
Electronics
45
• Position 2 determines the COe 4-20 mA signal rail limit. The settings are high,
21.1 mA, or low, 3.5 mA. The factory setting is high, 21.1 mA.
Positions 3 and 4 must be set as shown for proper software control of the device heaters.
3.2.2 Verify Configuration - Fieldbus Electronics
There is one switch on the microprocessor board which must be set for the Hazardous Area OCX
8800 with Fieldbus electronics (Figure 3-2). SW3 configures the sample line heater control
circuit. This switch is accessible through holes in the electronics box.
Remove power from the Hazardous Area OCX 8800 before changing defaults. If defaults
are changed under power, damage to the electronics may occur.
Figure 3-2 Hazardous Area OCX 8800 Defaults - Fieldbus Electronics