Instruction Manual
Appendix A
January, 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Appendices A-1
Hazardous Area Oxymitter DR
APPENDIX AUPGRADING HAZARDOUS AREA OXYMITTER DR TOFULL HAZARDOUS AREA OXYMITTERA-1 UPGRADE PROCEDURE
Perform the following procedure to upgrade the
Hazardous Area Oxymitter DR to a full Hazard-
ous Area Oxymitter.
a. Remove power from the Oxymitter DR.
b. Remove the left and right covers from the
Oxymitter termination housing.
c. Remove and discard the two cable assem-
blies (1 and 2, Figure A-1) from the right
side of the termination housing.
d. Place the new Oxymitter electronic assem-
bly (3) near the right side of the termination
housing.
e. Plug the white connector with the two black
wires into the white socket on the bottom
power supply card.
f. Insert the electron ics assembly into the ter-
mination housing. Ensure the black 4-wire
connector remains outside the housing and
in the slot provided in the top card of the
electronics assembly. The electronics as-
sembly should seat on the bulkhead pins
easily. Do not force the assembly into place.
g. Plug the black 4-wire connector into the
black socket on the microprocessor card.
h. Tighten three screws (4) securing the elec-
tronics assembly into the termination hous-
ing.
2
36210017
1
3
DIA
DIAGNOSTIC
GNOSTIC
ALARMS
ALARMS
TEST
TEST
POINTS
POINTS
HEA
HEATER
TERT/C
T/C
HEA
HEATER
TER
02 CELL
02 CELL
CALIBRA
CALIBRATION
TION
CALIBRA
CALIBRATION RECOMMENDED
TION RECOMMENDED
02 CELL mV +
02 CELL mV +
02 CELL mv
02 CELL mv-
HEA
HEATER
TERT/C +
T/C +
HEA
HEATER
TERT/C -
T/C -
INC
INCINC
INC
DEC
DECDEC
DEC
HIGH
HIGH
GAS
GAS
LOW
GAS
GAS
CAL
CAL
TEST GAS +
TEST GAS +
PR
PROCESS -
OCESS -
% 02
% 02
4
1.Signal connecting cable
2.Heater connecting cable
3.Electronic assembly
4.Screw
Figure A-1. Component Replacement