Emerson Rosemount Oxymitter 4000 Reference Manual page 59

July 2018
Hazardous Area Oxymitter 4000
Figure 3-2. Defaults - Hazardous
Figure 3-2. Defaults - Hazardous Area Oxymitter 4000 with Membrane Keypad
Area Oxymitter 4000 with
Membrane Keypad
4-20 mA
is internally
powered (Default)
4-20 mA requires
external power
Configuration with Membrane Keypad
HART: O Range set by HART/AMS
2
(From 0 to 40% O
Local: O Range set by Pos 2
2
0 to 10% O /
2
O Range
0 to 25% O :
2 2
3.5 mA/21.6 mA: When alarm exists, or on power-
up, output current goes to this
value
HEATER T/C
DIAGNOSTIC
ALARMS
CALIBRATION
CALIBRATION RECOMMENDED
O2 CELL mV +
O2 CELL mV -
TEST
HEATER T/C +
POINTS
HEATER T/C -
INC INC
HIGH LOW
GAS GAS
TEST GAS +
DEC DEC
PROCESS -
)
2
HART
0 to 10% O
3.5 mA
220 V
HEATER
SW2
O2 CELL
1
2
3
4
J1
TP1
TP2
TP3
TP4
CAL
TP5
TP6
% O2
Rosemount Oxymitter 4000
Instruction Manual
IM-106-340C, Rev. 6.2
Apr 2015
Local
0 to 25% O
2
2
21.6 mA
115 V
Default
position
(Ex-factory)
Note:
The 115 V option at switch
SW2 position 4 is active only
when the heater voltage
option is set to manual in the
software
(auto tune = no).
3-4
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