IB-106-340
6-8
500 VA
R
SERIAL NO.
TAG NO.
OXYMITTER 4000
VOLTS:
WATTS:
OUTPUT:
LINE FUSE:
Rosemount Analytical Inc.
Orrville, OH 44667-0901
85-264 VAC 48-62 Hz
TM
800-433-6076
4-20 mA
R
5 Amps
TM
HART
SMART FAMILY
DIAGNOSTIC
ALARMS
TEST
POINTS
HEATER T/C
HEATER
O2 CELL
CALIBRATION
CALIBRATION RECOMMENDED
O2 CELL mV +
O2 CELL mv -
HEATER T/C +
HEATER T/C -
INC
INC
DEC
DEC
HIGH
GAS
LOW
GAS
CAL
TEST GAS +
PROCESS -
% O2
SW2
TP1
J1
TP2
TP3
RED
YEL
GRN
ORG
TP4
TP5
TP6
ON
J1
MOUNTING
SCREW
MOUNTING SCREW
MOUNTING SCREW
26170018
Figure 6-5. Electronic Assembly
(c)
Follow the instructions in paragraph
2-5 to connect the calibration gases
and instrument air to an Oxymitter
4000/SPS 4000 assembly. Turn on the
calibration gases at the cylinders and
turn on instrument air.
(d)
Restore power to the system.
6-5.
ELECTRONICS REPLACEMENT. Each of the
following procedures details how to remove and
replace a specific electronic component of the Oxymit-
ter 4000.
a.
Entire Electronics Replacement (with Housing).
NOTE
Only perform this procedure on Oxymitter
4000 units without integrally mounted SPS
4000 units. If it is necessary to replace the
entire electronics on an Oxymitter 4000/
SPS 4000 assembly, contact Rosemount for
further instructions.
1. Follow the instructions in paragraph 6-4a1 to
remove the Oxymitter 4000 from the stack or
duct. If removing an Oxymitter 4000/
SPS 4000 assembly, follow the instructions in
paragraph 6-4b1.
2. Remove the right housing cover uncovering
the electronic assembly (Figure 6-5).
3. Depress and remove the J1 (cell and T/C)
connector from the J1 socket. Loosen the
three captive mounting screws on the micro-
processor board (top board).
4. The J8 connector (heater leads) can be
accessed by moving the J1 connector leads
out of the slot on the microprocessor board
and sliding the electronic assembly partially
out of the housing (Figure 6-6).
3D
39619G
REV
1
+
250VAC
TIME LAG
5A
+
+
+
+
+
+
+
+
1
J8
POWER
SUPPLY
BOARD
22220061
Figure 6-6. J8 Connector
Summary of Contents for Oxymitter 4000
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