Page 3
CONTENTS CHAPTER 1 UNPACKING AND PARTS IDENTIFICATION .... 1 CHAPTER 2 SETTING-UP..............3 Supplying Power to the Alnor CF920/A IAQ920 ....3 IRFLOW 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.
Use the probe holder to support the probe when in continuous data logging mode. Connecting to a Computer Use the USB Cable provided with the Alnor CF920/A IAQ920 to IRFLOW connect the instrument to a computer. Connect the end labeled “COMPUTER”...
Chapter 3 Operation Keypad Functions ON/OFF Key Press to turn the Alnor CF920/A IAQ920 IRFLOW 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...
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.
IAQ920, connect the To download data from the Alnor CF920/A IRFLOW supplied computer interface USB cable to the Alnor CF920/A IRFLOW IAQ920 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.
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 Alnor CF920/A IAQ920. If the enclosure of the Alnor CF920/A IRFLOW IRFLOW IAQ920 or the AC adapter becomes broken, it must be replaced immediately to prevent access to hazardous voltage.
Chapter 5 Troubleshooting Table 5-1 lists the symptoms, possible causes, and recommended solutions for common problems encountered with the Alnor CF920/A IRFLOW IAQ920. If your symptom is not listed, or if none of the solutions solves your problem, please contact TSI.
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) Temperature: Range: 32 to 122°F (0 to 50°C) Accuracy 1.0°F (±0.6°C) Resolution:...
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 (including handle): 11.15 in. (28.3 cm) Probe diameter of tip: 0.75 in. (19.0 mm) Meter Weight: Weight with batteries: 0.6 lbs (0.27 kg) Power Requirements:...
Need help?
Do you have a question about the Alnor CF920 and is the answer not in the manual?
Questions and answers