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www.meitavtec.com | [email protected] | M4000MD Digital HVAC Analyzer – Owner’s Manual | Pg. 9

5.4. Measuring Humidity Level

5.4.1. Press the [MODE] button – “HUMIDITY%” will be displayed on LCD.

5.4.2.

Place the probe in front of the outlet (or area to be measured) so that

the

sensor’s cover is facing the outlet.

5.4.3. Relative Humidity level in %RH is displayed.

HUMIDITY%

5.5. Measuring Air Velocity

5.5.1. Press the [MODE] button – “VELOCITY” will be displayed on LCD.

5.5.2. Place the probe in front of the outlet (or area to be measured) so that the

sensor’s cover is facing the outlet.

5.5.3. Air velocity in meters per second (m/s) is displayed.

VELOCITY

m/s

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Summary of Contents for M4000MD

Page 1: ...M4000MD Digital HVAC Analyzer Owner s Manual ...

Page 2: ... 4 INSTRUMENT DESCRIPTION 6 5 OPERATING INSTRUCTIONS 5 1 UNITS OF MEASURE 7 5 2 TURN THE UNIT ON OR OFF 8 5 3 MEASURING TEMPERATURE AND DEW POINT 9 5 4 MEASURING HUMIDITY LEVEL 10 5 5 MEASURING AIR VELOCITY 11 5 6 MEASURING AIR VOLUME 10 12 5 7 MEASURING CAPACITY 13 16 6 MAINTENANCE 17 6 1 LOW BATTERY INDICATION 17 6 2 BATTERY REPLACEMENT 17 7 SPECIFICATIONS 18 ...

Page 3: ... outlet computations of BTU s from Humidity measurement to system balancing or total outlet output An advanced measurement instrument designed for in field use the M4000MD is lightweight completely portable and ergonomically designed Three simple keypad buttons control the unit providing quick and easy operation An advanced microprocessor does all the computations needed and the results are displa...

Page 4: ...city in m sec Air Volume in m3 sec and CFM Capacity in kW and Btu h Dew Point in C and F Allows the measuring of round grills Memory allows Cumulative Volume and BTU measurements Keypad Controls Portable and Lightweight Durable sensing mechanisms 1 8m Six foot coil cord Tough ABS housing 75 mm x 45 mm 3 x 1 75 Large Liquid Crystal Display Carrying Case Included ...

Page 5: ...r to stabilize Remember to allow unit readings to stabilize in order to avoid false readings Do not place Sensor Cover in direct contact with any surface especially extremely hot or moist ones Do not expose Sensor to temperatures outside its range Do not expose Fan to velocities above its range Avoid contact with solvents and liquids Avoid extreme mechanical shook or vibrations Always take care to...

Page 6: ...www meitavtec com support meitavtec com M4000MD Digital HVAC Analyzer Owner s Manual Pg 6 4 INSTRUMENT DESCRIPTION ...

Page 7: ...MD Digital HVAC Analyzer Owner s Manual Pg 7 5 OPERATING INSTRUCTIONS 5 1 Units of Measure PARAMETER METRIC English Press Temperature C F Humidity RH Velocity meters sec Width Length Centimeter Air Volume M3 sec CFM Capacity kW BTU H Dew Point C F ...

Page 8: ... 3 Measuring Temperature and Dew Point 5 3 1 The M4000MD will switch on in the TEMP mode If already in another mode press the MODE button until TEMP is displayed on LCD TEMP o C 5 3 2 Place the probe in front of the outlet or the area to be measured so that the SENSOR S COVER IS FACING THE OUTLET 5 3 3 The temperature in C is displayed Press for F 5 3 4 To display Dew Point Press Dew Point is disp...

Page 9: ... the outlet or area to be measured so that the sensor s cover is facing the outlet 5 4 3 Relative Humidity level in RH is displayed HUMIDITY 5 5 Measuring Air Velocity 5 5 1 Press the MODE button VELOCITY will be displayed on LCD 5 5 2 Place the probe in front of the outlet or area to be measured so that the sensor s cover is facing the outlet 5 5 3 Air velocity in meters per second m s is display...

Page 10: ...ers AIR VOLUME cm ENTER WIDTH 5 6 3 Press ENTER to store the width in memory AIR VOLUME and ENTER LENGTH flashing will be displayed on LCD The M4000MD is requesting the A C outlet s length 5 6 4 Using the and buttons enter the appropriate measurement in centimeters DO NOT PRESS ENTER UNTIL STEP 5 5 7 AIR VOLUME cm ENTER LENGTH 5 6 5 To measure round grills after step 5 5 1 press and hold the ENTER...

Page 11: ...cing the outlet Press ENTER The M4000MD will flash WAIT for about 20 seconds VELOCITY m s AIR VOLUME WAIT START AVERAGE Keep the probe in front of the outlet s grill and when START AVERAGE begins to flash move the probe back and forth across the unit s outlet VELOCITY m s AIR VOLUME WAIT START AVERAGE Make sure to cover the complete area of the grill moving the probe at a rate of speed to cover th...

Page 12: ... To display Air Volume in CFM cubic feet per minute press and hold the button cfm AIR VOLUME Note Aim at getting readings from all available openings 5 6 8 To repeat this measurement or IF YOU WISH TO MEASURE ADDITIONAL OPENINGS press ENTER and repeat steps 5 5 2 5 5 7 Measure each opening as previously described in order to obtain an overall average reading At the completion of each test the sum ...

Page 13: ...obe at the output grill because it will take a long time 10 minutes to return to normal room humidity and temperature conditions 5 7 1 Press MODE button until CAPACITY appears on LCD CAPACITY kW Note When measuring return air it is recommended that the FAN SPEED IS SET ON HIGH and the probe is placed at the center of the inlet grill No movement is necessary during this measurement 5 7 2 Align the ...

Page 14: ...l beep and the WAIT will stop flashing signaling that the measurement has ended and a flashing ENTER WIDTH will be displayed on LCD CAPACITY ENTER WIDTH Probe at OUTPUT AIR cm 5 7 3 Using the and buttons enter the outlet s width in cm and press ENTER A Flashing ENTER LENGTH will be displayed on LCD CAPACITY ENTER LENGTH Probe at OUTPUT AIR cm Using the and buttons enter the outlet s length in cm D...

Page 15: ...e the probe in front of the outlet so that the sensor s cover is facing the outlet and than press ENTER the following display will show CAPACITY VELOCITY WAIT START AVERAGE Probe at OUTPUT AIR WAIT will flash No need to move probe at this time the M4000MD is waiting until the sensors stabilize with the new TEMPERATURE and HUMIDITY readings about 90 seconds then START AVERAGE will flash Measure for...

Page 16: ...but the same return air press ENTER and repeat steps 5 6 3 5 6 5 for each one make sure you enter the correct width and length for each opening In Step 5 6 5 WAIT will flash for 20 seconds Each time a measurement ends the LCD will display the kW for that specific outlet At the completion of each test the sum of ALL measurements can be displayed by pressing the button Note If you wish to go through...

Page 17: ...asionally inspect the coil cord for nicks and or cuts and return for replacement if any are found 6 1 Low Battery Indication The battery requires replacement when the LCD characters begin to flash on and off 6 2 Battery Replacement To replace the battery slide the battery compartment cover located on the back of the top portion of the unit upward to access the battery Remove and replace with a new...

Page 18: ...ature 2 C Humidity 3 RH Velocity 3 Dew Point 3 Response Time Temperature 5 sec Humidity 10 sec Velocity Instantaneous Dew Point 10 sec Operating Temp 0 C to 50 C 32 F to 122 F Power Supply One 9V alkaline battery Battery Life Approx 8 hours continuous Weight 430g 15 ounces Dimensions Controls 20 3 x 8 9 x 5 cm 8 x 3 5 x 2 Probe 17 1 x 7 6 x 5 cm 6 75 x 3 x 2 Display 5 digits 75 x 45 mm 3 x 1 75 LC...

Page 19: ...www meitavtec com support meitavtec com M4000MD Digital HVAC Analyzer Owner s Manual Pg 19 Notes ...

Page 20: ...www meitavtec com support meitavtec com M4000MD Digital HVAC Analyzer Owner s Manual Pg 20 M4000MD File M4000MD Owner s Manual Rev 1 doc ...

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