Fluke 923 User Manual
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Fluke 923 User Manual

Air velocity meter
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923
Air Velocity Meter
Users Manual
PN 4024518
September 2011
© 2011 Fluke Corporation. All rights reserved. Printed in Taiwan.
Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

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Summary of Contents for Fluke 923

  • Page 1 Air Velocity Meter Users Manual PN 4024518 September 2011 © 2011 Fluke Corporation. All rights reserved. Printed in Taiwan. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
  • Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for two years from the date of purchase. This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling.

  • Page 3: Table Of Contents

    Measure Flow ............13 Samples ..............14 Measurement Units ..........14 Velocity Alarm ............16 Clear All..............16 Recall ..............17 Calculate Average ........... 17 Maintenance .............. 17 Clean the Product............ 18 Change the Batteries..........18 How to Contact Fluke..........21 Specifications............. 22...
  • Page 4 Users Manual Electrical Specifications .......... 22 Mechanical Specifications ........23 Environmental Specifications........23 Safety Compliance..........24 Miscellaneous Specifications........24...

  • Page 5: Introduction

    Introduction The 923 Air Velocity Meter (the Product) is a handheld, indoor-air quality diagnostic instrument. It uses a probe that can be used while attached to the Product or in wireless mode away from the Product base. The Product measures, calculates, and displays: •...

  • Page 6: Safety Information

    Table 1. Symbols Symbol Meaning Risk of danger. Important information. Refer to manual. Conforms to relevant European Union directives Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information. Battery © Wireless mode is active.

  • Page 7: Features

    Air Velocity Meter Features Features The Product features: • A wireless telescopic probe • LED backlight • Auto power off • Low-battery indicator • Velocity alarm • US and Metric measurement options • Single-point and continuous data log options • Probe sensor cover •...
  • Page 8 Users Manual SAVE grx001.eps Figure 1. The Product...
  • Page 9 Air Velocity Meter Product Use Table 2. The Product Item Description Item Description Display (LCD) Shift button   Power button Save button. Push Shift   to set air velocity alarm. Backlight button IR Sensor   Velocity button. Push Save button ...

  • Page 10: The Display

    Users Manual The Display Figure 2 and Table 3 show the display. grx002.eps Figure 2. Display...
  • Page 11 Air Velocity Meter Product Use Table 3. Display Item Description Item Description Millimeters of Mercury Flow indicator   indicator Low battery indicators Velocity indicator for the Probe and the   Product body Clear All? indicator Velocity alarm indicator ...

  • Page 12: Buttons

    Users Manual Buttons Table 4 explains the Product buttons. Table 4. Buttons Button Function Power- Push to turn the Product on or off.  Backlight- Push to turn the backlight on or off.  Velocity- Push to see velocity and temperature. Units When used with ...

  • Page 13: Auto Power Off

    Air Velocity Meter Product Use Table 4. Buttons (cont.) Button Function Enter- Push when you set the measurement or function parameters to keep the value. When Recall used with  and  and , you can recall  recorded data. Shift- The Products secondary functions operate with .
  • Page 14 Users Manual grx006.eps Figure 3. Detach the Probe Use the Probe while it is attached to the Product base, as shown in Figure 1 or use it in wireless mode away from the base, as shown in Figure 4.
  • Page 15 Air Velocity Meter Product Use grx005.eps Figure 4. Velocity Probe Use...

  • Page 16: Ir And Rf Communication

    Users Manual IR and RF Communication When the Probe is connected the Product base, the two communicate with infrared (IR) sensors. When the Probe is used away from the base in wireless mode, the Probe uses radio frequency (RF) to communicate with the base. If unable to communicate in RF mode, turn the Product off, connect the Probe to the base, and push ...

  • Page 17: Measure Flow

    Air Velocity Meter Product Use To measure velocity: Push . Put the probe sensor perpendicular (90 °) to the air stream that you will measure. Make sure that the sensor cover is pulled back to show the sensor. Push  on the Product base, or  on the Probe to capture the velocity reading.

  • Page 18: Samples

    Users Manual Put the Probe sensor perpendicular to the air stream that you will measure. Make sure that the sensor cover is pulled back to show the sensor. Push  on the Product base, or  on the Probe to record the flow indication.
  • Page 19 Air Velocity Meter Product Use The first Flow units screen shows. To change the measurement units for the duct size to centimetres (cm) or inches (in): Push  and  to choose between cm and in. Push  to save the choice. The second Flow units screen shows.

  • Page 20: Velocity Alarm

    Users Manual Velocity Alarm The velocity alarm starts if the measurement is above the alarm user preset. When the alarm goes off, the Product base vibrates and beeps one time per second. The alarm can also be turned off. To set the velocity alarm: Push .

  • Page 21: Recall

    Air Velocity Meter Maintenance Recall To recall a sample: Push . Push  (Recall). RECALL shows on the display. The sample number also shows on the display. To move through the samples, push  and . The data for each sample is shown on the display. Calculate Average To calculate the average from the samples that have been stored push .

  • Page 22: Clean The Product

    Users Manual How to Clean the Product Regularly wipe the case and holster with a damp cloth and mild detergent. Caution To prevent damage to the Product, do not use abrasives or solvents to clean the Product case. How to Change the Batteries The Product modules are energized by batteries.
  • Page 23 Air Velocity Meter Maintenance grx004.eps Figure 5. Probe Battery Replacement...
  • Page 24 Users Manual grx003.eps Figure 6. Base Battery Replacement...

  • Page 25: How To Contact Fluke

    Air Velocity Meter How to Contact Fluke How to Contact Fluke To contact Fluke, call one of the following telephone numbers: • Technical Support USA: 1-800-44-FLUKE (1-800-443-5853) • Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853) • Canada: 1-800-36-FLUKE (1-800-363-5853) • Europe: +31 402-675-200 •...

  • Page 26: Specifications

    Users Manual Specifications Electrical Specifications Air Velocity Range 0.20 m/s to 20.00 m/s, (standard) 40 fpm to 3940 fpm Resolution 0.01 m/s, 1 fpm Accuracy 5 % + 3 digit of reading or (m/s) 1 % + 1 digit full scale Accuracy 5 % + 6 digit of reading or (fpm)

  • Page 27: Mechanical Specifications

    Air Velocity Meter Specifications Mechanical Specifications Size (H X W X L) (5.3 x 8.9 x 43.2) cm (2.1 x 3.5 x 17) in Weight .385 kg (.85 lb) Environmental Specifications 0 °C to +50 °C Operating Temperature -20 °C to +60 °C Storage Temperature Non condensing (<10 °C) Operating Humidity...

  • Page 28: Safety Compliance

    Users Manual Safety Compliance Design Standards IEC/EN 61326-1 and Compliance IEC/EN 61010-1, Pollution Degree Miscellaneous Specifications Power Requirements (3) AAA NEDA 24A IEC LR03 base, (1) 9 V NEDA 1604 IEC 6LR61 probe Auto Power Off 15 minutes...

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