Indoor Air Quality
IAQ-CALCTM
Indoor Air Quality Meter
Model 7515
Operation and Service Manual
ENERGY AND COMFORT
Copyright©
TSI Incorporated / May 2007 / All rights reserved.
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.
iii
CONTENTS
CHAPTER 1 UNPACKING AND PARTS IDENTIFICATION ............
1
CHAPTER 2 SETTING-UP................................................................. 3
Supplying Power to the Model 7515...............................................3
Installing the Batteries ............................................................... 3
Using the Integral Probe............................................................ 3
CHAPTER 3 OPERATION .................................................................5
Keypad Functions ...........................................................................5
CHAPTER 4 MAINTENANCE............................................................7
Recalibration...................................................................................7
Cases..............................................................................................7
Storage ...........................................................................................7
CHAPTER 5 TROUBLESHOOTING..................................................9
APPENDIX A SPECIFICATIONS..................................................... 11
1
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. Calibration collar
3
Chapter 2
Setting-up
Supplying Power to the Model 7515 IAQ-CALC Indoor Air Quality
Meter
The Model 7515 is powered with four size AA batteries.
Installing the Batteries
Insert four AA batteries as indicated by the diagram located on the
inside of the battery compartment. The Model 7515 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 Integral 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
2
levels exceeding 10,000 ppm and it may
take time for the probe to re-stabilize.
5
Chapter 3
Operation
Keypad Functions
ON/OFF Key
Press to turn the Model 7515 on and off. During
the power up sequence the display will show the
following: Model Number, Serial Number,
Software Revision, and Last Date Calibrated.
Sample Key
Press and release to start the sample, then press the
END key to stop the sample.
Stats Key
Press to view the minimum, maximum and
average of the last sample taken.
CAL Key
Press to begin the field-calibration process. To recalibrate in the field, first connect zero gas to the
instrument and open the regulator. Then use the
ST and ENTER keys to select ZERO. The
instrument will automatically make zero itself after
one minute.
After zeroing the sensor, connect span gas to the
instrument and open the regulator. Then use the
ST and ENTER keys to select SPAN. The
instrument will take one minute to make a reading.
Then use the
ST and ENTER keys to adjust the
concentration displayed on the instrument to
match the concentration on the gas cylinder.
7
Chapter 4
Maintenance
The Model 7515 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 7515 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.
The Model 7515 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 7515. If the enclosure of the Model 7515, 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 7515. If your symptom is
not listed, or if none of the solutions solves your problem, please contact
TSI.
Table 5-1: Troubleshooting the Model 7515
Symptom Possible Causes Corrective Action
No Display Unit not turned on Switch unit on.
Low or dead batteries Replace batteries.
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
on instrument.
WARNING!
Remove the probe from excessive temperature immediately:
excessive heat can damage the sensor. Operating temperature limits
can be found in Appendix A, Specifications.
11
Appendix A
Specifications
Specifications are subject to change without notice.
CO
2
:
Range: 0 to 5000 ppm
Accuracy
1
: ±3% of reading or ±50 ppm, whichever is greater
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
External Meter Dimensions:
3.3 in. × 9.6 in. × 1.8 in. (8.4 cm × 24.4 cm × 4.4 cm)
Meter Weight:
Weight with batteries: 0.6 lbs (0.27 kg)
Meter Display Dimensions:
Primary display: 4-digit LCD, 0.6 in. (15 mm) digit height
Secondary display: 3.5-digit LCD, 0.3 in. (8 mm) digit height
Power Requirements:
Four AA-size batteries (included)
1
At 77°F (25°C). Add uncertainty of ±0.2%/°F (±0.2%/°C) away from calibrated temperature
Thank you for reading this data sheet.
For pricing or for further information, please contact us at our UK Office, using the details
below.
UK Office
Keison Products,
P.O. Box 2124, Chelmsford, Essex, CM1 3UP, England.
Tel: +44 (0)1245 600560
Fax: +44 (0)1245 808399
Email: sales@keison.co.uk
Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the
suitability of this product.
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