CONTENTS CHAPTER 1 UNPACKING AND PARTS IDENTIFICATION .... 1 CHAPTER 2 SETTING-UP..............3 Supplying Power to the Model 7545 IAQ-C Indoor Air Quality Meter .................. 3 Installing the Batteries ...............3 Using the Optional AC Adapter ..........3 Using The Probe................3 Connecting to a Computer..............3 CHAPTER 3 OPERATION ..............
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.
Chapter 2 Setting-up Supplying Power to the Model 7545 IAQ-C Indoor Air Quality Meter The Model 7545 can be powered in one of two ways: four size AA batteries 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.
Chapter 3 Operation Keypad Functions ON/OFF Key Press to turn the Model 7545 on and off. During the power up sequence the display will show the following: Model Number, Serial Number, Software Revision and Last Date Calibrated. Arrow ( ) Keys Press to scroll through choices while setting a parameter.
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.
DATA LOGGING Measurements Measurements to be logged are independent of measurements on the display, and must therefore be selected under DATA LOGGING Measurements. Log Mode/Log Settings You can set Log Mode to Manual, Auto-save, Cont-key, or Cont-time. • Manual mode does not automatically save data, but instead prompts the user to save a sample.
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LogDat2 Downloading Software ™ The Model 7545 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 7545, connect the supplied computer interface USB cable to the Model 7545 and to a computer USB port.
Chapter 4 Maintenance The Model 7545 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 7545 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.
Chapter 5 Troubleshooting Table 5-1 lists the symptoms, possible causes, and recommended solutions for common problems encountered with the Model 7545. If your symptom is not listed, or if none of the solutions solves your problem, please contact TSI. Table 5-1: Troubleshooting the Model 7545 Symptom Possible Causes Corrective Action...
Appendix A Specifications Specifications are subject to change without notice. Range: 0 to 5000 ppm Accuracy ±3% of reading or ±50 ppm, whichever is greater Resolution: 1 ppm Sensor type: Non-Dispersive Infrared (NDIR) CO Sensor: Range: 0 to 500 ppm Accuracy: ±3% of reading or ±3 ppm, whichever is greater [add ±0.28%/°F (±0.5%/°C) away from calibration temperature]...
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Data Storage Capabilities: Range: 26,900 data points with key (4) measured parameters enabled Logging Interval: Intervals: 1 second up to 1 hour (user selectable) Time Constant: Intervals: 1 sec, 5 sec, 10 sec, 20 sec, 30 sec (user selectable) External Meter Dimensions: 3.3 in.
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