Pyle PMA90 anemometer
Contents
1. at anytime 1 Press the AREA button until meter beeps twice A memory location number will appear in the top right of the display indicating the memory location 2 Push the NEXT button to scroll thru and select the desired location Once you have selected the desired memory location enter your dimension Use the A UP button to change the flashing digit After all of the digits are entered press and hold the AREA button until it beeps twice to save the area into memory and return to CFM or CMM measuring mode To select and use a previously stored dimension press and hold the AREA button until it beeps twice Press NEXT to scroll thru the 8 memory locations Press and hold the AREA button until it beeps twice to return to CFM or CMM measuring mode Air Flow Averaging Mode 1 To enter 20 Point Averaging Mode press and hold the AVG button until it beeps twice The AVG icon will be displayed 2 Take a measurement and press the AVG button A single beep will sound and the HOLD icon will appear in the display 3 The average reading will be displayed and number of readings measured will appear in the upper right hand corner of the display After 5 seconds the display will return to the current reading 4 Repeat steps 2 3 until the desired number of points have been measured 5 To return to standard airflow measuring mode press and hold AVG button until meter beeps twice Note In the standard velocity measuring2. 3 until the desired number of points have been measured 5 To return to standard velocity measuring mode press and hold AVG button until meter beeps twice Note In the standard velocity measuring mode press the AVG button once to recall the previous average The average will be cleared when you enter the Averaging Mode again Air Flow Measurements CMM CFM Side view 1 Turn on the meter using the ON OFF button of Vane 2 Press the UNITS button to select the desired air flow units CMM cubic meters per minute or CFM cubic Arrow feet per minute NOTE At power up the meter will a display the last unit of measure previously entered airflow lt 3 To begin entering the area in m or ft press and hold the AREA button until it beeps twice The lt leftmost digit of the bottom display will begin to flash 4 Use the A UP button to change the flashing digit After all of the digits are entered press and hold the AREA button until meter beeps twice to save the area into memory and return to CFM or CMM measuring mode 5 Place the sensor in the air stream Ensure that the air enters the vane as indicated by the arrow sticker placed inside the vane Refer to the diagram The large main LCDdisplay shows the Air Velocity reading The upper right LCD sub display shows the temperature reading The meter has 16 memory locations 8 for CFM and 8 for CMM that can be used to store commonly used area sizes that you can recall
3. Conversions Area equation for rectangular or square ducts Height H Width W Area A Width W x Height H Area equation for circular ducts Area A x r Where 3 14 and r radius x radius Cubicequations CFM ft3 min Air Velocity ft min x Area ft CMM m3 min Air Velocity m sec x Area m x 60 NOTE Measurements made in inches must be converted to feet or meters before using the above formulae Unit of Measure Conversion Table m s ft min knots km h MPH 1m 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 10
4. PYLE User s Manual CFM CMM Thermo Anemometer Model PMA90 WWW PYLEAUDIO COM Introduction Congratulations on your purchase of the Thermo Anemometer This instrument measures Air Velocity Air Flow volume and Temperature The large easy to read backlit LCD includes primary and secondary displays plus numerous status indicators The meter is shipped fully tested and calibrated and with proper use will provide years of reliable service Meter Description Meter LCD Display Power On Off AVG UNIT MAX MIN NEXT HOLD AREA O 000 UN 0 O Be 2 NS Keypad AUTO POWER orFO Press to turn the meter ON or OFF MAXI MIN Used to record and store the highest lowest and average airflow or velocity readings LEFT also serves as change decimal point button in AREA mode UNITS Press to select the mode of operation In FLOW mode the meter displays air volume In VELOCITY mode the meter displays air speed A UP also serves as increase number button in AREA mode AVG Used to Average multiple readings in FLOW or VELOCITY mode Up to 20 readings can be averaged HOLD Press to freeze the displayed reading Press again to unlock display This button also functions as the RIGHT scroll button in AREA mode and RECALL mode AREA Press and hold to manually enter the area of a duct in CFM or CMM mode NEXT In AREA mode used to select memory locations 1 8 C F The button is behind of battery cover it needs to
5. mode press the AVG button once to recall the previous average The average will be cleared when you enter the Averaging Mode again Data Hold Air Velocity Air Flow 1 While taking measurements press the HOLD button to freeze the air velocity air flow reading 2 The HOLD indicator will appear in the bottom of the LCD display 3 Press HOLD again to return to normal operation MAX MIN AVG Record Air Velocity Air Flow This allows the user to record and view the highest MAX lowest MIN and average AVG readings 1 Press the button MAX MIN button The MAX indicator and RECORD indicator along with the Max reading will appear on the LCD display and the meter will begin keeping track of the MAX MIN and Average values 2 Press the MAX MIN button again to view the minimum reading The MIN indicator along with the minimum reading will appear on the LCD display 3 Press the MAX MIN button again to view the average reading The AVG indicator along with the average reading will appear on the LCD display 4 Press the MAX MIN button again to display current readings NOTE the meter will keep recording MAX MIN AVG readings 5 To clear and stop MAX MIN AVG recording and return to normal operation press and hold the MAX MIN button until the meter beeps twice Automatic Power OFF To conserve battery life the meter automatically turns off after 20 minutes To defeat this feature 1 Turn the meter OFF 2 dis APO will ap
6. open the battery cover that can set AUTO BACKLIGHT The model will be full auto backlight when operation it is more convenient Battery compartment located on the back of the instrument The rubber protective jacket must be removed from the meter to access the compartment Display Layout RECALL As MAX MIN HOLD FLOW VEL MEM PROBE TEMP AREA BEHA CMMCFM m ft MAX top of LCD Max Hold function engaged for the Air Temperature function HOLD top of LCD Data Hold function engaged for the Air Temperature function IR TEMP MAX MIN AVG HOLD VEL indicates that meter is in air velocity mode FLOW indicates that meter is in air flow mode MAX bottom of LCD Max Hold for the IR Temperature and RH function HOLD bottom of LCD Data Hold for the IR Temperature function and RH function C F Temperature units of measure CFM CMM airflow units of measure Ft m7 units for area dimensions m s ft min km h MPH knots air velocity units of measure X10 X100 multipliers for air flow readings AVG air averaging mode RECORD indicates that min max function is running top for temp bottom for air Large LCD digits at center of display for Relative Humidity an d IR Temperature Smaller LCD digits at top right of display for Probe Temperature __ Low battery indicator 3 Operation Connecting the Vane 1 Air 1 2 Air 1 The vane plug is inserted in the meter s sensor jack a
7. pear in the display The AUTO POWER OFF feature will now be disabled 3 Note that AUTO POWER OFF is re enabled each time the meter is turned on 4 Also note that AUTO POWER OFF is disabled in CFM CMM or Average mode Battery Replacement When E appears on the LCD the 9V battery must be replaced Disconnect the sensor Remove the meter s rubber protective jacket Use a Phillips screwdriver to open the rear battery compartment Replace the 9V battery Close the battery compartment and replace the meter s protective jacket You as the end user are legally bound Battery ordinance to return all used batteries and accumulators disposal in the household garbage is prohibited OY oe NDS You can hand over your used batteries accumulators gratuitously at the collection points for our branches in your community or wherever batteries accumulators Disposal are sold Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle WARNING To avoid electric shock do not operate the meter until the battery cover is in place and fastened securely NOTE If your meter does not work properly check the fuses and batteries to make sure that they are still good and that they are properly inserted Specifications Air Velocity m s meters per sec km h kilometers hour ft min feet per minute mph miles per hour knots nautical MPH Air Flow CMM cubic me
8. t the top of the meter The plug and jack are keyed so that the plug can only fit in the jack one way Turn the plug carefully until it lines up with the jack and then firmly push the plug in place Do not apply undue force or try to twist the plug side to side If the vane is not connected to the meter or if the sensor is defective the LCD display will indicate OL in place of a Temperature reading Velocity Measurements Single Point Side view of Vane Turn on the meter using the ON OFF button Press UNITS button to select the desired unit of Arrow measure NOTE At power up the meter will display the last unit of measure previously a entered Place the sensor in the air stream Ensure that the air enters the vane as indicated by the arrow sticker placed inside the vane airflow lt View the readings on the LCD Display The large main LCD display shows the Air Velocity reading The upper right LCD sub display shows the temperature reading Velocity Averaging Mode To enter 20 Point Averaging Mode press and hold the AVG button until it beeps twice The AVG icon will be displayed 2 Take a measurement and press the AVG button A single beep will sound and the HOLD icon will appear in the display 3 The average reading will be displayed and number of readings measured will appear in the upper right hand corner of the display After 5 seconds the display will return to the current reading 4 4 Repeat steps 2
9. ters min CFM cubic ft min Air Temperature Range 0 40 30 00 m s 1 4 108 0 km h Resolution 0 01 m s Accuracy 3 0 20 m s Battery Current 8 3 mA DC approx Weight Dimensions 1 6 lbs 725g including battery amp probe Main instrument 7 0 x 2 9 x1 2 178 x 74 x 33mm Sensor Head 2 75 70mm Diameter 0 1km h 3 0 8 km hr 80 5900 ft min 1 ft min 3 40 ft m 0 9 67 0 mph 0 1 mph 3 0 4 MPH 0 8 to 58 0 knots 0 1 knots 3 0 4 knots Range Resolution Area 0 9999 m min 1 0 to 9 999m 0 9999 ft min 1 0 to 9 999ft Range Resolution Accuracy 14 140 F 10 60 C 0 1 F C 4 0 F 2 0 C Circuit Display Sampling rate Sensors Automatic Power off Operating Temperature Storage Temperature Operating Humidity Storage Humidity Operating Altitude Battery Battery life Custom LSI microprocessor circuit Dual function 0 5 13 mm 4 digit LCD 1 reading per second approx Air velocity flow sensor Conventional angled vane arms with low friction ball bearing Temperature sensor NTC type precision thermistor Auto shut off after 20 minutes to preserve battery life 32 F to 122 F 0 C to 50 C 14 to 140 F 10 to 60 C lt 80 RH lt 80 RH 2000 meters 7000ft maximum One 9 volt NEDA 1604 battery 80 hours approx if the Backlight is used continuously battery life will be reduced significantly 9 Useful Equations and
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