background image

AN320-en-GB_V1.2   11/14 

5

Display

 

Layout

 

1.

 

Lower

 

Display

 

digits

 

(air

 

volume,

 

temperature,

 

timer,

 

or

 

menu

 

parameter

 

displays)

 

2.

 

Upper

 

Display

 

digits

 

(air

 

velocity,

 

humidity,

 

CO

2

,

 

or

 

menu

 

display

 

parameters)

 

3.

 

Optional

 

Cone

 

or

 

Funnel

 

attachment

 

icon

 

4.

 

Units

 

of

 

measure

 

for

 

duct

 

area

 

programming

 

5.

 

Vane

 

indicator

 

(flashes

 

very

 

briefly

 

on

 

power

 

up)

 

6.

 

Display

 

HOLD

 

icon

 

7.

 

MAX

 

mode

 

icon

 

8.

 

MIN

 

mode

 

icon

 

9.

 

Recording

 

icon

 

10.

 

Elapsed

 

Timer

 

icon

 

11.

 

AVG

 

mode

 

icon

 

12.

 

Battery

 

status

 

icon

 

13.

 

Unit

 

of

 

measure

 

icons*

 

 

*Full

 

list

 

shown.

 

Available

 

units

 

of

 

measure

 

icons

 

vary

 

by

 

model.

  

Содержание AN320

Страница 1: ...USER GUIDE Large Vane CFM CMM Anemometer Psychrometer CO2 Model AN320 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com ...

Страница 2: ...ONS Improper use of this meter can cause damage to the meter and personal injury Read and understand this user manual before operating the meter Inspect the condition of the probe and the meter for any damage before operating the meter Repair or replace damage before use If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired ...

Страница 3: ... mode AVG and up arrow button 4 L mode and down arrow button 5 ON OFF Power and SET button 6 HOLD MAX MIN and left arrow Enter button 7 Unit of measure symbol for lower display row 8 Unit of measure symbol for upper display row 9 Air Velocity Vane Meter Description rear 10 Air temperature humidity and CO2 sensors 11 Battery compartment ...

Страница 4: ...E and SETUP mode sections for details Press momentarily to toggle between ppm CO2 humidity and air velocity readings Press and hold for 2 seconds to access the Multi Point Average and Timed Average modes the AVG icon switches ON Detailed instructions for these modes are provided later in this guide In the Setup mode press to select a category or to increase a value refer to Setup mode later in thi...

Страница 5: ...u display parameters 3 Optional Cone or Funnel attachment icon 4 Units of measure for duct area programming 5 Vane indicator flashes very briefly on power up 6 Display HOLD icon 7 MAX mode icon 8 MIN mode icon 9 Recording icon 10 Elapsed Timer icon 11 AVG mode icon 12 Battery status icon 13 Unit of measure icons Full list shown Available units of measure icons vary by model ...

Страница 6: ...ted in C F Air flow volume is indicated in CFM cubic feet per minute or CMM cubic meters per minute Use the L mode button for lower display and the U mode button for upper display to scroll through the displayed reading options 6 To change between Imperial and Metric units of measure refer to the SETUP Mode section 7 To measure the Air Volume of a duct first measure the duct s area see the Appendi...

Страница 7: ...egin displaying the lowest minimum readings encountered since this mode was accessed The MIN icon will appear at the top of the LCD display indicating that the readings shown are the lowest measured 2 Press and hold the MAX MIN button again for 2 seconds to display the maximum readings encountered The MAX icon will appear on the LCD 3 Press and hold this button again for 2 seconds to return to the...

Страница 8: ...se either arrow button to switch between metric and imperial units The available units are air velocity m s fpm temperature C F air volume CMM CFM and area size cm inch 3 Press HOLD momentarily to return to the P1 0 display 4 Press either arrow button to move to the P2 0 AREA option and follow the steps below P2 0 Area Size Selection enter square inches or square centimeters 1 In setup mode from t...

Страница 9: ...in air with an unknown CO2 concentration Doing so will result in the meter being calibrated to the standard 400 ppm and could lead to inaccurate results 1 Place the meter in a calibrated environment 2 With the meter OFF press SET HOLD and L mode simultaneously to enter CO2 calibration mode 3 The meter will run a 30 second countdown and CAL will show in the lower display 4 During calibration a CO2 ...

Страница 10: ...to use the meter Never dispose of used batteries or rechargeable batteries in household waste As consumers users are legally required to take used batteries to appropriate collection sites the retail store where the batteries were purchased or wherever batteries are sold Disposal Do not dispose of this instrument in household waste The user is obligated to take end of life devices to a designated ...

Страница 11: ... Area Range CMM cubic meters min 0 99999 m3 min 0 1 up to 9999 9 then 1 0 0 to 99999cm 2 CFM cubic ft min 0 99999 ft 3 min 0 1 up to 9999 9 then 1 0 0 to 99999in 2 Temperature Ranges Resolution Accuracy o F o C Air and Wet Bulb 20 to 60 o C 4 to 140 o F Dew Point 5 to 60 o C 23 to 140 o F 0 1 o C o F 0 6 C 20 to 50 C 1 2 C 51 to 60 C 1 1 F 5 to 122 F 2 2 F 123 to 140 F CO2 Range Resolution Accurac...

Страница 12: ...minutes to preserve battery life sleep mode Operating Temperature 0 C to 50 C 32 F to 122 F Storage Temperature 10 C to 50 C 14 to 122o F Operating Humidity 80 RH Storage Humidity 90 RH Operating Altitude 2000m 7000 ft maximum Battery Power Four 4 AAA 1 5V batteries Battery Life 40 hours Battery consumption 8 3 mA DC approx Weight 725g 1 6 lbs including battery and probe Dimensions Main instrument...

Страница 13: ...ange limit Test the meter using an air velocity that is known to be within the specified range limits Send the unit to Extech for repair if the E03 error message persists Air volume E03 Reading exceeds the meter s display limit Check that the AREA setting is correct in the Setup Mode E04 Air velocity error Return meter to Extech for repair CO2 E01 E33 Voltage too low or CO2 module error Check if t...

Страница 14: ... Table m s ft min knots km h MPH 1 m s 1 196 87 1 944 3 6 2 24 1 ft min 0 00508 1 0 00987 0 01829 0 01138 1 knot 0 5144 101 27 1 1 8519 1 1523 1 km h 0 2778 54 69 0 54 1 0 6222 1 MPH 0 4464 87 89 0 8679 1 6071 1 Width W Height H Area A Width W x Height H CFM ft 3 min Air Velocity ft min x Area ft 2 CMM m 3 min Air Velocity m sec x Area m 2 x 60 Radius Area A pi x r 2 Where pi 3 14 and r 2 radius x...

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