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Instruction Manual
IB-106-340CDR Original Issue
January, 2002
2-12 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
Hazardous Area Oxymitter DR
d. WESTINGHOUSE MODEL TC200 VERI-
TRIM ELECTRONICS SETUP
Before beginning operation, it is important
that the probe heater setpoint of the existing
electronics be changed to support the Haz-
ardous Area Oxymitter DR In-Situ Oxygen
Probe. To convert the Model TC200 Elec-
tronics Package for use with the DR probe,
an EPROM change is necessary. The re-
placement EPROM needed is part number
1M03154G02.
1. EPROM replacement. To replace the
EPROM, proceed as follows:
(a) Shut off and lock out power to the
electronics package.
(b) Open electronics enclosure.
(c) On the main PCB, Figure 2-11, lo-
cate and remove old EPROMs U11
and U12.
(d) Replace with new EPROMs (part
number 1M03154G02) being
careful to install U11 and U12 in
their proper locations.
(e) Close electronics enclosure and
power up system.
2. Heater Setpoint Adjustment. The ad-
justment procedure required for the
Model TC200 Electronics Package is
as follows:
(a) Open keylocked enclosure to ac-
cess membrane keyboard.
(b) Put controller in PAR (parameter)
mode by depressing "LOCK" "▲"
"%O2" "INC" "ACK" in sequence.
(c) Depress "ACK" pushbutton to clear
display.
(d) Press "NUM" pushbutton.
(e) Using "INC", "DEC" buttons, dis-
play parameter 125.
(f) Press "VAL" button.
(g) Using "INC", "DEC" buttons,
change parameter 125 value to
15.4.
(h) Press "ENT" to save new value.