TSI Alnor IAQ-CALC-7535 Operating Manual

ENERGY AND COMFORT

Indoor Air Quality

IAQ-CALCTM

Indoor Air Quality Meter

Model 7535

Operation and Service Manual

Copyright©

TSI Incorporated / May 2007 / All rights reserved.

Address

TSI Incorporated / 500 Cardigan Road / Shoreview, MN 55126 / USA

Fax No.

[phone]

LIMITATION OF WARRANTY AND LIABILITY (effective July 2000)

Seller warrants the goods sold hereunder, under normal use and service as described in the
operator's manual, shall be free from defects in workmanship and material for twenty-four (24)
months, or the length of time specified in the operator's manual, from the date of shipment to the
customer. This warranty period is inclusive of any statutory warranty. This limited warranty is
subject to the following exclusions:
a. Hot-wire or hot-film sensors used with research anemometers, and certain other

components when indicated in specifications, are warranted for 90 days from the date of
shipment.

b. Parts repaired or replaced as a result of repair services are warranted to be free from

defects in workmanship and material, under normal use, for 90 days from the date of
shipment.

c. Seller does not provide any warranty on finished goods manufactured by others or on any

fuses, batteries or other consumable materials. Only the original manufacturer's warranty
applies.

d. Unless specifically authorized in a separate writing by Seller, Seller makes no warranty

with respect to, and shall have no liability in connection with, goods which are
incorporated into other products or equipment, or which are modified by any person other
than Seller.

The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated
herein. NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE.

TO THE EXTENT PERMITTED BY LAW, THE EXCLUSIVE REMEDY OF THE USER OR
BUYER, AND THE LIMIT OF SELLER'S LIABILITY FOR ANY AND ALL LOSSES,
INJURIES, OR DAMAGES CONCERNING THE GOODS (INCLUDING CLAIMS BASED
ON CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY OR OTHERWISE) SHALL
BE THE RETURN OF GOODS TO SELLER AND THE REFUND OF THE PURCHASE
PRICE, OR, AT THE OPTION OF SELLER, THE REPAIR OR REPLACEMENT OF THE
GOODS. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY SPECIAL,
CONSEQUENTIAL OR INCIDENTAL DAMAGES. SELLER SHALL NOT BE
RESPONSIBLE FOR INSTALLATION, DISMANTLING OR REINSTALLATION COSTS
OR CHARGES. No Action, regardless of form, may be brought against Seller more than 12
months after a cause of action has accrued. The goods returned under warranty to Seller's
factory shall be at Buyer's risk of loss, and will be returned, if at all, at Seller's risk of loss.

Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND
LIABILITY, which contains the complete and exclusive limited warranty of Seller. This
LIMITATION OF WARRANTY AND LIABILITY may not be amended, modified or its terms
waived, except by writing signed by an Officer of Seller.

Service Policy

Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our
customers, our service policy is designed to give prompt attention to any problems. If any
malfunction is discovered, please contact your nearest sales office or representative, or call
Customer Service department at [phone] (USA) or (1) 651-490-2811 (International).

CONTENTS

CHAPTER 1 UNPACKING AND PARTS IDENTIFICATION ............

CHAPTER 2 SETTING-UP................................................................. 3

Supplying Power to the Model 7535 IAQ-CALC Indoor Air

Quality Meter ..................................................................................

Installing the Batteries ............................................................... 3

Using the Optional AC Adapter ................................................. 3

Using The Probe.............................................................................3

Connecting to a Computer.............................................................. 3

CHAPTER 3 OPERATION .................................................................5

Keypad Functions ........................................................................... 5

Common Terms .............................................................................. 5

Menus ............................................................................................. 6

DISPLAY SETUP................................................................................. 6

SETTINGS......................................................................................... 6

BAROMETRIC PRESSURE................................................................... 6

DATA LOGGING .................................................................................7

Measurements...........................................................................7

Log Mode/Log Settings .............................................................7

Delete Data................................................................................ 7

% Memory .................................................................................7

APPLICATIONS ..................................................................................7

CHAPTER 4 MAINTENANCE............................................................9

1

3

Recalibration...................................................................................9

Cases..............................................................................................9

Storage ...........................................................................................9

CHAPTER 5 TROUBLESHOOTING................................................ 11

APPENDIX A SPECIFICATIONS..................................................... 13

iii

Chapter 1

Unpacking and Parts Identification

Carefully unpack the instrument and accessories from the shipping
container. Check the individual parts against the list of components below. If
anything is missing or damaged, notify TSI immediately.

1. Carrying case

2. Instrument

3. USB cable

4. CD-ROM with downloading software

5. Calibration collar

1

Chapter 2

Setting-up

Supplying Power to the Model 7535 IAQ-CALC Indoor Air Quality Meter

The Model 7535
or the optional AC adapter.

Installing the Batteries

Insert four AA batteries as indicated by the diagram located on the
inside of the battery compartment. The Model 7535 is designed to
operate with either alkaline or NiMH rechargeable batteries, although it
will not recharge NiMH batteries. Battery life will be shorter if NiMH
batteries are used. Carbon-zinc batteries are not recommended because
of the danger of battery acid leakage.

Using the Optional AC Adapter

When using the AC adapter, the batteries (if installed) will be bypassed.
Be sure to provide the correct voltage and frequency, which is marked
on the back of the AC adapter. The AC adapter is not a battery charger.

Using The Probe

The sensing probe relies on the diffusion of air. For best results, try to
keep the sensing probe surrounded by moving air. Do not breathe on the
probe. Humans exhale CO
take time for the probe to re-stabilize. Use the probe holder to support
the probe when in continuous data logging mode.

can be powered in one of two ways: four size AA batteries

levels exceeding 10,000 ppm and it may

2

Connecting to a Computer

Use the USB Cable provided with the Model 7535 to connect the instrument
to a computer. Connect the end labeled “COMPUTER” to the computer
USB port and the other end to the data port of the Model 7535.

For more information on how to download stored data see Chapter 3 section

LogDat2™ Downloading Software.

titled

Caution: This symbol is used to indicate that the data port
of the Model 7535 is not intended for connection to a
public telecommunications network. Connect the USB
data port only to another USB port.

3

Chapter 3

Operation

Keypad Functions

ON/OFF Key

Arrow (ST) Keys

 (Enter) Key

Arrow (g or h) and
Menu Soft Keys

Common Terms

In this manual there are several terms that are used in different places. The
following is a brief explanation of the meanings of those terms.

Sample

Press to turn the Model 7535 on and off. During
the power up sequence the display will show the
following: Model Number, Serial Number,
Software Revision and Last Date Calibrated.

Press to scroll through choices while setting a
parameter. Pressing the
will lock the keypad to prevent unauthorized
adjustments to the instruments. To unlock the
keypad, press the

Press to accept a value or condition.

Press arrow keys to change choices while setting a

parameter. Press the Menu soft key to select the

Menu selections, which are Display Setup,
Settings, Barometric Pressure, Data Logging,
Applications, Calibration.

Consists of all of the measurement parameters
stored at the same time.

ST keys simultaneously

ST keys simultaneously.

Test ID

A group of samples. The statistics (average,
minimum, maximum, and count) are calculated for
each test ID. The maximum number of test IDs is

100.

5

Time Constant

The time constant is an averaging period. It is used
to dampen the display. If you are experiencing
fluctuating flows, a longer time constant will slow
down those fluctuations. The display will update
every second, but the displayed reading will be the
average over the last time constant period. For
example, if the time constant is 10 seconds, the
display will update every second, but the displayed
reading will be the average from the last 10
seconds. This is also referred to as a “moving
average”.

Logging Interval

The logging interval is a frequency period that the
instrument will log readings. For example, if the
logging interval is set to 30 minutes, each sample
will be the average of the last 30 minutes.

Menus

DISPLAY SETUP

Display setup menu is where you will setup the desired parameters to be
displayed on the running screen. With a parameter highlighted you can then

use the ON soft key to have it show up on the running screen or select the
OFF soft key to turn off the parameter. Use PRIMARY soft key to have a

parameter show up on the running screen in a larger display. Only one
parameter can be selected as a primary, and up to 2 secondary parameters
can be selected at one time.

SETTINGS

Settings menu is where you can set the general settings. These include
Language, Beeper, Select Units, Time Constant, Contrast, Set Time, Set
Date, Time Format, Date Format, Number Format, Backlight and Auto Off.
Use the g

or h soft keys to scroll through the settings for each option and

use the  key to accept settings.

BAROMETRIC PRESSURE

Barometric Pressure menu is where you set the barometric pressure, which
can affect the CO

measurement.

2

6 Chapter 3

DATA LOGGING

Measurements

Measurements to be logged are independent of measurements on the
display, and must therefore be selected under DATA LOGGING Æ
Measurements.

Log Mode/Log Settings

You can set Log Mode to Manual, or Auto-save.

• Manual mode does not automatically save data, but instead prompts

the user to save a sample.

• In Auto-save mode, the user manually takes samples that are

automatically logged.

• Auto-save mode has the Log Interval setting under Log Settings:

Delete Data

Use this to delete all data, delete test or delete sample.

% Memory

This option displays the memory available. Delete All, under Delete
Data, will clear memory and reset the memory available.

APPLICATIONS

You can choose % Outside Air in the Applications menu. After choosing
this application, take measurements or enter data for each line.

™

LogDat2

Downloading Software

The Model 7535 comes with special software called LogDat2 Downloading
Software, which is designed to provide you with maximum flexibility and
power. To install this software on your computer, follow the instructions on
the label of the LogDat2 CD-ROM.

To download data from the Model 7535, connect the supplied computer
interface USB cable to the Model 7535 and to a computer USB port. Then
run the LogDat2 downloading software. Within the LogDat2 software, either
select the tests to be downloaded or double-click on a test to open it.

Operation 7

Chapter 4

Maintenance

The Model 7535 requires very little maintenance to keep it performing well.

Recalibration

To maintain a high degree of accuracy in your measurements, we
recommend that you return your Model 7535 to TSI for annual recalibration.
Please contact one of TSI’s offices or your local distributor to make service
arrangements and to receive a Return Material Authorization (RMA)
number. To fill out an online RMA form, visit TSI’s website at

http://service.tsi.com.

U.S. & International

TSI Incorporated
500 Cardigan Road
Shoreview MN 55126-3996
Tel: [phone]
[phone]
Fax: [phone]

The Model 7535 can also be recalibrated in the field using the
CALIBRATION menu. These field adjustments are intended to make minor
changes in calibration to match a user's calibration standards. The field
adjustment is NOT intended as a complete calibration capability. For
complete, multiple-point calibration and certification, the instrument must be
returned to the factory.

Cases

If the instrument case or storage case needs cleaning, wipe it off with a soft
cloth and isopropyl alcohol or a mild detergent. Never immerse the
Model 7535. If the enclosure of the Model 7535 or the AC adapter becomes
broken, it must be replaced immediately to prevent access to hazardous
voltage.

Storage

Remove the batteries when storing the unit for more than one month to
prevent damage due to battery leakage.

9

Chapter 5

Troubleshooting

Table 5-1 lists the symptoms, possible causes, and recommended solutions
for common problems encountered with the Model 7535. If your symptom is
not listed, or if none of the solutions solves your problem, please contact
TSI.

Table 5-1: Troubleshooting the Model 7535

Symptom Possible Causes Corrective Action

No Display Unit not turned on Switch unit on.
Low or dead batteries Replace batteries or plug

in AC adapter.

Dirty battery contacts Clean the battery

contacts.

High CO2 levels Breathing on probe Shield probe from breath

and allow instrument to

re-stabilize.
Instrument Error
message appears

Fault in instrument Factory service required

Remove the probe from excessive temperature immediately:
excessive heat can damage the sensor. Operating temperature limits
can be found in Appendix A, Specifications.

Memory is full Download data if desired,

then DELETE ALL

memory.

on instrument.

WARNING!

11

Appendix A

Specifications

Specifications are subject to change without notice.

CO2:

Range: 0 to 5000 ppm
Accuracy
Resolution: 1 ppm
Sensor type: Non-Dispersive Infrared (NDIR)

Instrument Temperature Range:

Operating (Electronics): 40 to 113°F (5 to 45°C)
Storage: -4 to 140°F (-20 to 60°C)

Instrument Operating Conditions:

Altitude up to 4000 meters
Relative humidity up to 80% RH, non-condensing
Pollution degree 1 in accordance with IEC 664
Transient over voltage category II

Data Storage Capabilities:

Range: 40,300 data points with key (1) measured parameters

Logging Interval:

Intervals: 1 second up to 1 hour (user selectable)

1

: ±3% of reading or ± 50 ppm, whichever is greater

enabled

Time Constant:

Intervals: User selectable

External Meter Dimensions:

3.3 in. × 7.0 in. × 1.8 in. (8.4 cm × 17.8 cm × 4.4 cm)

Meter Probe Dimensions:

Probe length: 7.0 in. (17.8 cm)
Probe diameter of tip: 0.75 in. (1.9 cm)

Meter Weight:

Weight with batteries: 0.6 lbs (0.27 kg)

Power Requirements:

Four AA-size batteries (included) or AC adapter (optional) 9 VDC, 300 mA,
4-18 watts (input voltage and frequency vary depending on which adapter is
used)

1

Add ±0.2%/○F (±0.32%/○C) away from calibration temperature.

13

TSI Incorporated – 500 Cardigan Road, Shoreview, MN 55126 U.S.A

USA Tel: [phone] E-mail: [e-mail] Website:
UK Tel: [phone] E-mail: [e-mail] Website:
France Tel: [phone] E-mail: [e-mail] Website:
Germany Tel: [phone] E-mail: [e-mail] Website
Sweden Tel: [phone] E-mail: [e-mail] Website:

www.tsi.com
www.tsiinc.co.uk
www.tsiinc.fr

: www.tsiinc.de

www.tsi.se

India Tel: [phone] E-mail: [e-mail]
China Tel: [phone] E-mail: [e-mail]

Contact your local TSI Distributor or visit our website www.tsi.com for more detailed specifications.
P/N 1980573 Rev B Copyright © 2007 by TSI Incorporated Printed in U.S.A.