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WARNING! Before start measuring please read chapter 6, Settings.
The instrument is delivered with the k
compensation for atmospheric pressure and temperature set to ON
SWEMA AB
Pepparvägen 27
SE-123 56 FARSTA - SWEDEN
Tel: +46 8 94 00 90
Fax: +46 8 93 44 93
E-mail: swema@swema.com
Web page: www.swema.com
SwemaAir 5
Operating instructions
Rev. 1.02 ES20151027
2
Contents:
1. Introduction......................
2. Technical data......................
3. Start..................................
4. Unit.......................................
5. Mode....................................
6. Settings...............................
7. Notebook..............................
-factor and automatic density
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2
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5
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Table of Contents
Related Manuals for Swema Air 5
Summary of Contents for Swema Air 5
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Page 1: Table Of Contents
SWEMA AB 1. Introduction…………………. Pepparvägen 27 2. Technical data...... SE-123 56 FARSTA - SWEDEN 3. Start………………....Tel: +46 8 94 00 90 4. Unit........Fax: +46 8 93 44 93 5. Mode........E-mail: swema@swema.com 6. Settings……......Web page: www.swema.com 7. Notebook...... -
Page 2: Introduction
1. Introduction SwemaAir 5 is a hot wire anemometer for measuring temperature, air velocity and air flow. Temperature is measured in °C or °F, air velocity in m/s or fpm and air flow in l/s, m /h or CFM. SwemaAir 5 compensates for correct air density with the in- built barometer and the measured temperature. -
Page 3: Technical Data
2. Technical data Air velocity: 0,1... 12 m/s Temperature: -20... 80°C Barometer: 600... 1200 hPa Measurement uncertainty at 23°C: ±0,04 m/s at 0,1... 1,33 m/s ±3% read value at 1,33... 30 m/s Temperature: ±0,3°C 95% coverage probability in non condensing, non moist air, <80%RH, non aggressive gases. -
Page 4: Unit
Measurement In measuring mode press Enter to store a value in the cache memory. The number of measuring points stored in the cache memory is shown on the display directly below the displayed tempearture, ”2P” (see picture to the right) and it means two measuring points has been saved. - Page 5 Air flow (l/s or m SwemaAir 5 measures Air flows in: · Circular duct with given diameter. · Rectangular ducts with given Height and Width (H x W). · Ducts with given transversal area. To measure air velocity press Unit and Air flow measurement in l/s is displayed.
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Page 6: Mode
5. Mode Press Mode in measuring mode to select the type of duct, Settings (Set) or Notebook(saved measurements), press Enter to confirm or Esc to cancel. Press the Up/Down and Right/Left Arrow Keys to change between the duct dimensions, units (Set) or Notebook (top figure to the right). Ø... - Page 7 Air flow measurement in rectangular duct Press Mode and select Press Enter fto measure airflow in rectangular ducts by setting Height x Width. The choosen dimensions of Height x Width are displayed in SwemaAIr 5 below the measured temperature (the display toggles between the symbols of Height and Width).
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Page 8: Settings
6. SETTING (SEt) Press Mode, select ”Set” and press Enter. Press Left/Right keys to see the following settings: Units (SI or US); Density setting Standard (Std), Real (rEAL) or Manual (*); Duration; K faktor to change a setting press Edit or press Up/Down keys. To confirm the change press Esc or Enter and SwemaAir 5 returns to measuring mode. -
Page 9: Notebook
Rectangular ducts: Height > Width >> K = 0.94 Height < Width >> K = 0.98 Square ducts: Height = Width >> K = 0.96 Source: Metoder för mätning av luftflöden in ventilationsinstallationer (T09)/ Methods for mesuring Air flow in ventilation installation (T09) with correction from NBI:s rapport nordtest Prosj.
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