Emerson Rosemount Oxymitter 4000 Reference Manual page 161
Hazardous area oxygen transmitter
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Instruction Manual
IM-106-340C, Rev. 6.2
July 2018
Apr 2015
i.
In the left side of the termination housing,
place the new termination designation labels
over the labels on the existing terminal block.
After placing the new labels, the terminal block
should appear as shown in Figure A-2.
j.
The existing wiring from the Oxymitter to the
electronics may be reused. However, the
wires will be carrying new signals as noted by
the new labels. The 4-20 mA wires must be
removed from the old electronics and re-
terminated to the wires carrying the 4-20 mA
O
signal to the control room.
2
k. The wires carrying the heater power must be
converted to carry AC power (90-250 VAC,
50/60 Hz) for the Oxymitter. The re-
terminations may be inside the old electronics
housing, which will function as a simple junc-
tion box. Alternatively, the old electronics may
be removed and replaced with a smaller junc-
tion box.
l.
Place the round error blink code and calibra-
tion instructions label on the inside of the right
Figure A-2. Terminal Block and Wiring
housing cover.
CALIBRATION HANDSHAKE
10-5
Appendix A
i.
In the left side of the termination housing, place the new termination
designation labels over the labels on the existing terminal block. After
placing the new labels, the terminal block should appear as shown in
Figure A-2.
j.
The existing wiring from the Oxymitter to the electronics may be reused.
However, the wires will be carrying new signals as noted by the new labels.
The 4-20 mA wires must be removed from the old electronics and
re-terminated to the wires carrying the 4-20 mA O
room.
k.
The wires carrying the heater power must be converted to carry AC power
(90-250 VAC, 50/60 Hz) for the Oxymitter. The re- terminations may be
inside the old electronics housing, which will function as a simple junction
box. Alternatively, the old electronics may be removed and replaced with a
smaller junction box.
l.
Place the round error blink code and calibra- tion instructions label on the
inside of the right housing cover.
m.
Install both housing covers.
n.
Refer to the instruction bulletin provided with your upgrade kit, IB-106-340,
for start-up and diagnostic information.
AC TERMINAL
COVER
LINE VOLTAGE
(90 TO 250 VAC)
+
LOGIC I/O OR
+
4-20 mA
4-20
SIGNAL
LEFT SIDE OF
OXYMITTER 4000
Figure 10-4. Terminal Block and Wiring
Hazardous Area Oxymitter 4000
m. Install both housing covers.
n. Refer to the instruction bulletin provided with
your upgrade kit, IB-106-340, for start-up and
diagnostic information.
A-2
NOTES
a. The HART electronics offers the following ad-
ditional features:
. 1
H
. 2
A
IMPS autocal gas sequencers)
. 3
C
b. The new ambient temperature specification for
the Oxymitter electronics is 185¡F (85¡C). This
temperature can be read via HART communi-
cations.
c. Upgrading to Fieldbus electronics requires
the changeout of the entire blue electronics
housing with the Fieldbus version, P/N
4850B10G11. Instruction Bulletin IB-106-350
is also required.
TERMINAL
BLOCK
AC
L1
AC
N
-
-
Rosemount Oxymitter 4000
signal to the control
2
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AC LINE
VOLTAGE PORT
GROUND
LUGS
SIGNAL
PORT
36210016
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161
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