LI-COR 7200-101 User manual

7200-101
Flow Module
Instruction Manual

7200-101 Flow Module
Instruction Manual
LI-COR Biosciences
4647 Superior Street
Lincoln, Nebraska 68504
Phone: [phone]
Toll free: 800-447-3576 (U.S. and Canada)
[e-mail]
Regional Offices
LI-COR Biosciences GmbH
Siemensstraße 25A
61352 Bad Homburg
Germany
Phone: [phone]
[e-mail]
LI-COR Biosciences UK Ltd.
St. John’s Innovation Centre
Cowley Road
Cambridge
CB4 0WS
United Kingdom
Phone: [phone]
envsales[email protected]om
LI-COR Distributor Network:
www.licor.com/env/distributors

NOTICE
The information contained in this document is subject to change without notice.
LI-COR MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT
LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
LI-COR shall not be liable for errors contained herein or for incidental or consequential damages in connection with the
furnishing, performance, or use of this material.
This document contains proprietary information, which is protected by copyright. All rights are reserved. No part of this
document may be photocopied, reproduced, or translated to another language without prior written consent of LI-COR,
Inc.
© Copyright 2010, LI-COR, Inc.
Publication No. 984-11013
Printing History
New editions of this manual will incorporate all material since the previous editions. Update packages may be used
between editions which contain replacement and additional pages to be merged into the manual by the user.
The manual printing date indicates its current edition. The printing date changes when a new edition is printed. (Minor
corrections and updates which are incorporated at reprint do not cause the date to change).
Microsoft® and Windows® are registered trademarks of Microsoft Corporation. Eurofast® is a registered trademark of
Turck Inc.
LI-COR, Inc. l4647 Superior Street lLincoln, Nebraska 68504
Phone: [phone] lFAX: 402-467-2819
Toll-free: 1-800-447-3576 (U.S. & Canada)
[e-mail]
1st Printing - March, 2010
2nd Printing – October, 2013
ii

iii
Contents
Section 1. Overview of the 7200-101 Flow Module
What’s What 1-1
Initial Setup 1-2
Powering the 7200-101 1-2
Cabling 1-2
Attaching the Tubing and Air Filter 1-3
Mounting the 7200-101 Flow Module 1-5
Using the 7200-101 1-7
Controlling Flow with Manual Controls 1-7
Controlling Flow with the Windows® Software 1-10
Monitoring Flow Rate 1-11
Flow Rate Data Output 1-12
Section 2. Maintenance
Changing the Fuse 2-1
Cleaning the Air Filter Screen 2-2
Appendix A. Specifications
Appendix B. Warranty

iv

Section 1.
Overview of the 7200-101 Flow Module
The 7200-101 is a high performance flow module designed for use with the LI-
7200/RS enclosed CO2/H2O Analyzer, or other closed path analyzers. The 7200-101
attaches to the LI-7550 Analyzer Interface Unit of the LI-7200/RS to provide an
integrated flow solution; flow can be controlled through software, or manually via
the 7200-101 control panel. The 7200-101 provides a constant flow of 10-18 SLPM,
in increments of 0.1 SLPM, and requires only about 13W power during normal
operation.
What’s What
If you have just taken delivery of your 7200-101, check the packing list to verify
that you have received everything that was ordered and that you have also received
the following items:
lMounting Kit – (part number 9979-022). This kit contains all of the hardware
needed to mount the 7200-101 Flow Module to a tripod or other mounting
post.
lSpare Parts Kit - (part number 9972-049). This kit contains replacement parts
for your 7200-101. Among other items, the spares kit contains tubing and the
power and accessory cables. As you become familiar with the Flow Module you
will learn which items to keep close at hand and which items can be stored
away. The spares kit includes these commonly used items:
Description Quantity Part Number
Tygon Tubing, ¾” O.D.; 16.4' (5 meters) length 1 222-10384
Hose Barb, 3/8” NPT 1 300-11179
Hose Barb, 1/4” NPT 1 300-11180
1-17200-101 Flow Module

Section 1. Overview of the 7200-101 Flow Module
Description Quantity Part Number
Hose Clamp, ½” O.D. 4 300-10788
Air Filter 1 301-10381
Air Filter Replacement Screen 2 301-10382
Accessory Cable, 5 meter, 5PF-5PM 1 392-10092
Exhaust Fitting 1 6572-047
Power Cable, 5 meter 1 9975-030
Initial Setup
This section describes basic operation of the flow module.
Powering the 7200-101
The 5-meter power supply cable included (part number 9975-030) has a circular
connector that attaches to the 7200-101 Flow Module front panel at the location
marked POWER. The other end has bare wire leads for connection to a 10.5-30
VDC supply (50 W or more capability, 2 A or greater). Connect the red lead to the
positive terminal of the power supply, and the black wire to the negative terminal.
Cabling
The 5-meter Accessory cable included (part number 392-10092) has male and
female circular connectors that attach to the 7200-101 and LI-7550 front panels,
respectively, at the connectors marked ACCESSORY.
Figure 1-1. Attach the Accessory Cable to the Accessory connectors on the LI-7550 and
7200-101 front panels.
1-2 7200-101 Flow Module

Attaching the Tubing and Air Filter
IMPORTANT: Clamping the tubing to the hose barbs and air filter as described
below is very important. The tubing will initially seal without hose clamps, but
in our experience, leaks will develop slowly over time. Note, too, that the Tygon
tubing should not be draped over support stands or other equipment, as it can
soften in sunlight and warm weather, causing it to kink, resulting in flow restric-
tion.
There is a 16’ length of ½” I.D. Tygon tubing in the spares kit that is used for air
flow between the LI-7200/RS sensor head and the 7200-101 Flow Module. We
recommend that you always attach the air filter in-line between the LI-7200/RS
sensor head and the 7200-101 AIR IN port. Follow these steps to attach the Tygon
tubing and air filter:
Figure 1-2. Thread the exhaust fitting
into the EXHAUST port and hand
tighten. Thread the 3/8” hose barb into
the AIR IN port.
1Remove the red shipping plugs from the
EXHAUST and AIR IN ports.
Screw the white exhaust fitting into the
EXHAUST port on the 7200-101 front
panel. Tighten with an open end wrench;
this fitting serves to hold a small filter
screen in place inside the port.
2Locate the 3/8” nickel plated hose barb in the
spares kit (part number 300-11179).
Thread the hose barb into the AIR IN port.
Tighten with an open end wrench.
3Cut a 4” section from the length of Tygon tubing.
Place a hose clamp over this section of
tubing, and push onto the hose barb. Tighten the hose clamp. TIP: Use a pair of pli-
ers to tighten the hose clamp initially; after you have tightened the clamp once,
you’ll be able to tighten the thumb screw by hand.
4Place another hose clamp over the short section of tubing, and push the tubing onto the air filter.
Note the orientation of the filter; the arrow on the body of the filter must face toward
the instrument.
Section 1. Overview of the 7200-101 Flow Module
1-3Attaching the Tubing and Air Filter

Section 1. Overview of the 7200-101 Flow Module
Figure 1-3. Note the orientation of the
arrow on the body of the air filter, and
clamp onto the short length of tubing.
You can now clamp the long length
(however long you determine is needed
to run to the LI-7200/RS sensor head) of
tubing onto the other end of the air filter,
and run the tubing to the AIR OUT port
on the LI-7200/RS sensor head (the
7200-101 draws air through the sensor
head).
Note that the LI-7200/RS sensor head
ships with two Swagelok fittings installed
in the air inlet and outlet ports. You will
need to remove the Swagelok fitting on
the AIR OUT port and install the ¼” hose
barb (part number 300-11180, in the
spares kit) to attach the Tygon tubing. Clamp the tubing at the hose barb on the
LI-7200/RS sensor head with a hose clamp from the spares kit. The finished cabling
configuration (including optional 7550-101 Auxiliary Sensor Interface and sonic
anemometer) might appear something like that shown in the illustration below.
1-4 7200-101 Flow Module