DOD Technologies ChemLogic CL4 User manual

ChemLogic®CL4 & CL8
Continuous Gas Monitor
Pyrolyzer User Manual Supplement

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CL4 & CL8 Manual
DOD Technologies, Inc.
675 Industrial Drive Bldg. A
Cary, IL 60013
Phone [phone] • Fax [phone]

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CL4 & CL8 Manual
Chapter 1 – Overview
The DOD Technologies ChemLogic 8 (CL8) Pyrolyzer option uses two four-point Pyrolyzers enclosed in a
separate housing the same size & shape as the CL8. The Pyrolzyer has it’s own power cord, on/off switch,
and exhaust fan as shown in figure 1.
1.1 Pyrolyzer Installation Diagram
CL8 Operating Voltage: 110/115VAC (+/-10) 50/60 Hz <1.0 Amps;
230VAC (+/-10) 50/60 Hz <0.5 Amps
Pyrolyzer Operating Voltage: 110/115VAC (+/-10) 50/60 Hz <2.0 Amps;
230VAC (+/-10) 50/60 Hz <1.3 Amps
Sample Tubing Points 1-8 FEP Teflon:¼” OD x 3/16” ID x 300’ (91 mtrs)
Exhaust Tubing Polyethylene: 3/8” OD x 1/4” ID x 25’ (7.5 mtrs)
Please allow 4’ minimum spacing (left and right side) to allow door swing and power plug clearance
WARNING: To provide adequate cooling of the unit provide a minimum of 6” of
clearance on both sides of the Pyrolyzer unit for proper air circulation. Do not
block the exhaust fan.
Tubing and electrical
connectors from CL8.
Exhaust fan
On / Off Switch
Power Cord
Internal Power Supply
Points 5-8 Pyrolyzer
Points 1-4 Pyrolyzer
Figure 1

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CL4 & CL8 Manual

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CL4 & CL8 Manual
Chapter 2 – Installation
2.1 Mounting
Carefully feed wiring and tubing bundles
from the bottom of CL8 into
corresponding holes on top of the
pyrolyzer. Make sure the grommets are
attached over the bundles inside the
CL8.
Place CL8 unit on top of pyrolyzer. Align
units properly and make sure wires &
tubing are not pinched. Securely tighten
screws from inside pyrolyzer.
Press the Grommets into the hole to
cover the metal edges of both the CL8
and the pyrolyzer. Check the Grommet
from above and below to assure they
are properly seated
Wiring & Tubing
bundles exit holes
on bottom of
CL8 unit.
From inside the
Pyrolyzer unit insert
and tighten four (4)
8/32” screws at the
top and tighten to
secure unit to CL8
using pre-tapped
holes.
Reattach the
Protective Earth (PE)
ground wire inside
the CL8 cabinet
WARNING: The doors on the CL8 unit and the pyrolyzer are heavy and can tip
the units when opening if they are not permanently mounted. Care must be
taken when assembling the two units together before mounting.
Grommets seated
properly.

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2.2 Tubing
First carefully attach inlet
tubes 1-4 to the
top
connectors of the left
pyrolyzer.
Now repeat the procedure for
the inlet of points 5-8 on the
bottom of the right
pyrolyzer.
Connect the outlet tubes for
points 1-4 to the
bottom of the
left
pyrolyzer.
Connect the outlet tubes for
points 5-8to the
top of the
right
pyrolyzer.
Using the labels on the
tubing connect the inlet
tubes to points 1 thru 4.
Point 1 is in the top-left-
back sequentially thru point
4 in the top-left-front.. Fully
insert the tubes securely in
to the Pyrolyzer fitting.
Point 5 is in the bottom-
right-back sequentially
thru point 8 in the bottom-
right-front. Fully insert the
tubes securely in to the
pyrolyzer fitting.
Point 1 is in the
bottom-left-back
sequentially thru
point 4 in the
bottom-left-front.
NOTE: The two bundles of tubing labeled ‘inlet’ and ‘out’ each contain 8 tubes
which must be attached to the pyrolzers. The left pyrolyzer is points 1-4 and the
right side is points 5-8. The pyrolyzers are mounted opposite so the inlet and
out tubes are opposite each other on each unit.
Point 5 is in the top-
right-back
sequentially thru
point 8 in the top-
right-front.

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CL4 & CL8 Manual
2.3 Wiring
The pyrolyzer and fan
power connector
contains the yellow,
black, & white wires.
The pyrolyzer output
connector contains all
green wires.
Chapter 3 - Operation
Be sure both the pyrolyzer and the CL8 are powered on before operation. See the CL8 user’s manual for
operation of the CL8 unit. No special configuration is necessary for the pyrolyzer option after the gas tables
are loaded at the factory.
3.1 Filters
End of line filters are recommended for all sample tubing on the CL8. See the CL8 user’s manual for more
information.
3.2 Error Messages
The pyrolyzer option includes several event log messages in addition to the standard CL8 event messages –
see Figure 3 below.
Figure 3
***In addition to the enclosure exhaust fan, each pyrolyzer assembly has its own exhaust fan. When a
pyrolyzer fan fails all four points of the assembly will issue a fault message simultaneously. When the four
messages appear together check the pyrolyzer fan for proper operation.
Message
Corrective Action
Pyro Encl Fan Fault
Repair/replace pyrolyzer enclosure exhaust fan.
Pyrolyzer fault Point X
Repair/replace the element for the specified point***
Connect the
pyrolyzer and fan
power connector
as shown.
Connect the
pyrolyzer
output/status
connector as
shown.