infrared industries IR-8400D, Operator'S Manual

Page: 31 / 37

30
I N S T A L L A T I O N
Mount the analyzer to the conditioner, using the SS hardware attached to the mounting plate. Mount the
conditioner and analyzer to a firm, flat, vertical surface, protected from direct radiation by the sun. Use a
sun shield, if necessary. Attach the tubing from the flow meter to the analyzer inlet, and tighten the
compression fitting 1/8 turn past finger-tight. Install the zero and span gas lines to the selector valve at
the appropriate fittings. Attach the bypass, drain, and sample-out gas lines and route to an area away
from the analyzer.
Note: Both the zero and span gases should have regulators set for approximately 8 psig. With the
sample inlet value closed, attach the sample line to the sample inlet valve attached to the small filter
holder.
I N I T I A L S E T U P
Slowly open the sample inlet valve. With the selector valve in the SAMPLE position, as the flow increases,
adjust the valve on the flow meter as necessary to maintain an indicated flow of 1 scfh. Rotate the gas
selector valve to the ZERO position and adjust the pressure regulator on the zero gas bottle for an
indicated flow of 1 scfh. Rotate the gas selector valve to the SPAN position, and adjust the pressure
regulator on the span gas bottle for an indicated flow of 1 scfh. Return the selector valve to the
ZERO or
OFF position. The system is now ready to operate.
O P E R A T I O N
Follow the CALIBRATION AND OPERATION instructions provided earlier in this manual. Use the gas
selector valve to select the various gases. Open the drain valve located below the larger filter holder (if
supplied) when liquid accumulates in the bowl.
F I L T E R R E P L A C E M E N T
If the flow to the analyzer drops significantly, indicating a clogged particulate filter, both the filter
elements need to be replaced. To replace the element in the smaller filter holder, first turn off the sample
inlet valve and remove the compression tube fitting attached at the bottom of the filter holder to free the
filter bowl. Rotate the filter bowl clockwise (as viewed from the top) and remove the filter bowl and
element. Check the condition of the automatic drain orifice, and clean if necessary, using .010 to .012 inch
wire. Replace the filter element with a new one (Infrared Industries part no. 273-947) and reinstall the
filter bowl in the reverse order as above.
CAUTION: THE GASES AND LIQUIDS IN CONTACT WITH THE FILTER
ELEMENTS MAY BE CORROSIVE AND TOXIC. CARE SHOULD BE TAKEN WHILE
HANDLING THE ELEMENTS OR WHEN VENTING OFF THE RESIDUAL GAS LEFT
IN THE FILTER HOLDERS.