TAC-O
2
_
H
Pg. 9
TEXAS ANALYTICAL CONTROLS
4418 Bluebonnet Drive | Stafford, TX 77477 | (281) 240-4160 |
www.tac-controls.com
SCFH
2.0
1.5
1.0
0.5
Symb
ol of
Relia
bility
T
A
C
CAL
1.0
SAMPLE
0.5
FLOW METER
SAMPLE IN
ADJUSTMENT KNOB
ST
ANDARD IN
SCFH
2.0
1.5
1.0
0.5
Sym
bol of R
eliability
T
A
C
CAL
1.0
SAMPLE
0.5
FLOW METER
SAMPLE IN
ADJUSTMENT KNOB
ST
ANDARD IN
4 Controls and Their Operation
To Install O
2
Sensor
1 Turn the Cal Valve on the side of the enclosure to STANDARD IN. This temporarily
prevents flow to the analyzer.
2 On the front of the enclosure, confirm that the flow-meter ball drops to zero.
3 Unscrew the O
2
sensor housing cover by turning it counter-clockwise. Gently
blow into the housing or use your hand to fan air into the O
2
housing.
4 Remove the new sensor from its N
2
filled bag and remove the red shorting strip.
5 Hold the sensor using the paper tab to easily insall. Place the sensor with metal
mesh screen side down and the circuit board contacts facing up.
Note:
Be certain to
remove red pull tab
before insertion.
Hold by using paper
tab to easily install.
4
5
4.2.1
Step 1:
Installation of the O
2
Sensor
Caution: The Oxygen Sensor should NOT be exposed to ambient air for more than 2-3 minutes.
Extended periods of exposure can damage the low end sensitivity and response time as well as extend
the time to bring the O
2
readings down.
1
SAMPLE IN
STANDARD IN
2
2.0
1.5
1.0
0.5
SCFH
CAL
1.0
SAMPLE
0.5
SCFH
2.0
1.5
1.0
0.5
Symbol of Reliability
T
A
C
CAL
1.0
SAMPLE
0.5
FLOW METER
SAMPLE IN
ADJUSTMENT KNOB
ST
ANDARD IN
3
NOTE:
Purging the O2 line will bring the O2 readings down faster.
Remove the plug from the standard in during the atmospheric
calibration. The pressure will purge the excess gas that is
within the stainless steel tubing. After calibration return plug to
standard in.
BOTTOM VIEW
SAMPLE
IN
STANDARD
IN
SAMPLE
VENT
Bottom of Enclosure– configuration may be
different pending the analyzer ordered.