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April 13, 2005
PROBE CONDITIONING
SYSTEM- P/N 13004
FOR CONTINUOUS FURNACES
WITH DELAY/PURGE TIMER
INSTRUCTION MANUAL M-4514
SSi
SUPER SYSTEMS INC.
7205 Edington Drive Cincinnati, Ohio 45249
1-513- 772-0060 1-800- 666-4330 FAX 1-513-772-9466
SsiManual 4514 D 13004 Probe Conditioning System
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Table Of Contents
INTRODUCTION
Introduction . . . . . . . . . . . . . . p. 1
Specifications . . . . . . . . . . . . p. 1
Description . . . . . . . . . . . . . . p. 1
Installation . . . . . . . . . . . . . . p. 2
Operation . . . . . . . . . . . . . . . p. 2
Wiring Diagram. . . . . . . . . . . p. 3
Revision History . . . . . . . . . . p. 4
Thank you for selecting
SSi
P/N 13004 for your continuous furnace, probe maintenance
application.
You lubricate critical machine parts on a regular basis if you want them to last. Your zirconia
carbon sensor also requires regular maintenance. Buildup of carbon in the space between the
zirconia sensing element and the sheath, and at the sensing point, will eventually adversely affect
the proper operation of the probe. If carbon (soot) is allowed to accumulate to the extent that
atmosphere cannot penetrate to the sensing surface, control is impossible. The 13004 is designed
to prevent that from happening by periodically initiating a procedure to remove the carbon. It is
intended for use with continuous furnaces only. (See P/N 13011 for batch furnaces, 13003 for
generators.)
SPECIFICATIONS
Reference air flow- > 2scfh
Burnoff air flow- ~ 15scfh max.
Burnoff time- 1 to 10 minutes
Delay/purge time- 1 to 10 minutes
Dimensions- 12" x 12" x 6"
Weight- 17.4 lbs
Actuation- Cycle timer- 5 to 50
hours.
DESCRIPTION
The 13004 continuous probe conditioning box is designed for use with a continuous furnace.
Although many such furnaces are equipped with programmable controls that could conduct
probe conditioning on a regular basis, it has been our experience that this programming
capability is seldom used. Existing burnoff systems that are designed to work with a
programmable controller cannot be used as "stand alone" systems without significant
modification. Further, most cannot provide adequate air for burnoff because they simply switch
the output of low flow reference air pumps to the burnoff fitting without regard to adequate flow.
The 13004 is also provided with a delay timer to allow the probe signal to return to normal
before control is re-established. Fig. 1 shows the piping and wiring diagram of the 13004.
PROBE CONDITIONING SYSTEM MANUAL Page 1
SsiManual 4514 D 13004 Probe Conditioning System
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INSTALLATION
The compact JIC box is provided with flanges, each having two 1/4" mounting holes. Locate the
box to within about 6 feet of the sensor, if possible. Avoid locations close to a source of
combustibles such as the vent pipe of an oil quench tank, or a natural gas fitting that could
develop a leak. Because the reference air pump aspirates air from its immediate vicinity to pump
to the probe reference air fitting, it is possible to experience a significant error in measurement
due to reaction of the combustible with air inside the probe. The result is a low reading of
percent carbon, which will cause the controls to add excess natural gas and overcarburize your
work piece. A purge valve maybe is connected to power through terminals 1054 and 1055 as
shown in Fig.1. This will accelerate the recovery by rapidly displacing the burnoff air with
furnace atmosphere.
OPERATION
With the system wired as illustrated in Fig. 1, and the power switch off, close the burnoff airflow
valve. Set the upper (burnoff) time (T1) to about 5 minutes, and the lower (cycle) time (T2) to
12 hours. Set the delay timer (TR106) to 5 minutes. Record the initial probe millivolts, then close
the power switch (SW-1) to start a cycle. Set the reference air flow to full scale, or slightly
higher. Observe the probe temperature and O2 millivolt reading, then increase the burnoff
airflow until the millivolt reading is less than 200 millivolts, preferably close to zero. The
temperature should be less than 50oF higher than it was initially. When the burnoff is complete,
observe the probe millivolts and note the time to recover to within 2 millivolts of the initial
reading. Set the delay timer, TR106, to this value. Repeat the burnoff by turning the power off,
then on. Observe the performance and adjust flows and times to values that cause the probe
millivolts to drop close to zero (or at least below 200mV) when the burnoff period is complete.
The ultimate goal is to provide the shortest practical burnoff time so the process is not out of
control for an appreciable period. If trim gas or air are added by motorized valves, and they are
not spring return types, the control interrupt terminals (Fig.1) can be used to interrupt power to
the motors so that control is maintained during burnoff. For time proportioning control with
solenoid valves, simply supply the power to the valves through the control interrupt terminals
1051 and 1053. When all flow and time parameters have been set observe the operation for a day
or two to make sure all is correct. Refer to your GOLD PROBETM instruction manual for a
complete description of the probe conditioning operation.
THANK YOU
We think you will be delighted with the performance of your probes once you have installed this
engineered conditioning system. If you have any questions, suggestions or problems, your
GOLD PROBETM team is only as far as your phone. Call us at 1-800-666-4330. We listen.
And we respond.
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PROBE CONDITIONING SYSTEM MANUAL Page 3
SsiManual 4514 D 13004 Probe Conditioning System
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Revision History
Rev. Description Date
A Initial Release 04-24-2001
B Added Revision History 07-11-2001
C Revised Drawing on Page 3 11-06-2002
D SSi Address Update, General Update 04-12-2005
SSi SUPER SYSTEMS INC.
7205 Edington Drive Cincinnati, Ohio 45249
1-513-772-0060 1-800-666-4330 FAX 1-513-772-9466
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PROBE CONDITIONING SYSTEM MANUAL
SsiManual 4514 D 13004 Probe Conditioning System
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