TSI 7515, 7525, 7545 Data Sheet
.
ENERGY AND COMFORT
Indoor Air Quality Instruments
Model 7545
Features and Benefits
Low-drift NDIR CO2sensor for stable, accurate readings
Sampling function records multiple point measurements
Ergonomic, overmolded case design
Models 7525 and 7545
Temperature and relative humidity measurements help
determine thermal comfort
Calculates % outside air from either CO2or temperature
Directly calculates dew point and wet bulb temperatures
Electrochemical sensor measures CO (Model 7545)
Models 7525 and 7545 display up to three parameters
Model 7515 displays CO
2
IAQ-CALC
TM
Indoor Air Quality Meters
Models 7515, 7525, and 7545
TSI’s IAQ-CALCTMMeters are outstanding instruments for
investigating and monitoring indoor air quality (IAQ). The
Model 7515 is a cost-effective meter for carbon dioxide (CO2)
measurements. The Models 7525 and 7545 simultaneously
measure and data log multiple parameters. The Model 7525
measures CO2, temperature, humidity, and calculates dew
point, wet bulb temperature, and % outside air. The Model
7545 adds carbon monoxide (CO).
Applications
Conduct IAQ evaluations
Verify building HVAC system performance
Examine building IAQ conditions to optimize worker productivity
Comply with regulations and guidelines
Data Logging-Models 7525 and 7545
TSI LogDat2TMsoftware permits easy transfer of data to
a computer
Data can be reviewed on-screen, or downloaded to a
computer for easy report generation
Statistics function displays average, maximum and
minimum values, and the number of recorded samples
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ENERGY AND COMFORT
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Specifications
IAQ-CALC
Models 7515, 7525, 7545
CO2
Sensor Type Dual-wavelength NDIR (non-dispersive infrared)
Range 0 to 5000 ppm
Accuracy
Resolution 1 ppm
Response Time 20 seconds
Temperature (Models 7525 and 7545)
Sensor Type Thermistor
Range 32 to 140°F (0 to 60°C)
Accur
acy ±1.0°F (±0.5°C)
Resolution 0.1°F (0.1°C)
Response Time 30 seconds (90% of final value, air
Relative Humidity (Models 7525 and 7545)
Sensor Type Thin-film capacitive
Range 5% to 95% RH
Accur
acy
Resolution 0.1% RH
Response Time 20 seconds (for 63% of final value)
% Outside Air (Models 7525 and 7545)
Range 0 to 100%
Resolution 0.1%
CO (Model 7545 only)
Sensor Type Electro-chemical
Range 0 to 500 ppm
Accur
acy ±3.0% of reading or ±3 ppm, whichever is greater
Resolution 0.1 ppm
Response Time <60 seconds to 90% step change
Operating Temperature
40 to 113°F (5 to 45°C)
Storage Temperature
-4 to 140°F (-20 to 60°C)
Logging Capability (Models 7525 and 7545)
Ranges Model 7525 logs up to 30,300 data points with key (3)
T
ime Constant 1 sec, 5 sec, 10 sec, 20 sec, 30 sec (user selectable)
Log Intervals 1 second up to 1 hour (user selectable)
TM
1
2
±3.0% of reading or ±50 ppm,
whichever is greater
velocity at 400 ft/min [2 m/s])
±3.0% RH
measured parameters enabled
Model 7545 logs up to 26,900 data points with key (4)
measured parameters enabled
Indoor Air Quality Instruments
Meter Dimensions (all models)
3.3 in. x 7.0 in. x 1.8 in. (8.4 cm x 17.8 cm x 4.4 cm)
Probe Dimensions (Model 7515)
Length 2.75 in.
Diameter 0.75 in. (1.9 cm)
Probe Dimensions (Models 7525 and 7545)
Length 7.0 in.
Diameter 0.75 in. (1.9 cm)
Weight (with batteries)
0.6 lbs (0.27 kg)
Power Requirements
Model 7515 Four AA-size
Models 7525 and 7545
1
At 77°F (25°C). Add uncertainty of ±0.2%/°F (±0.36%/°C) away from calibrated temperature.
2
At 77°F (25°C). Add uncertainty of ±0.03% RH/°F (±0.05% RH/°C) away from calibrated temperature.
Specifications subject to change without notice.
CO
2
CO
Temperature
Humidity
% outside air
Dew point
Wet bulb temperature
Data logging/downloading
Statistics
Review data
Certificate of Calibration
(7.0 cm)
(17.8 cm)
batteries
Four AA-size batteries or AC adapter
7515 7525 7545
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TSI Incorporated
USA Tel: +1 800 874 2811 E-mail: answers@tsi.com Website: www.tsi.com
UK Tel: +44 149 4 459200 E-mail: tsiuk@tsi.com Website: www.tsiinc.co.uk
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Singapore Tel: +65 6595 6388 E-mail: tsi-singapore@tsi.com
Contact your local TSI Distributor or visit our website www.tsi.com for more detailed specifications.
P/N 2980573 Rev B Copyright © 2011 by TSI Incorporated Printed in U.S.A.
- 500 Cardigan Road, Shoreview, MN 55126-3996 USA
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