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1.  Press the      button to turn the meter ON/OFF.

2.  Press the      button to step through the maximum, minimum, and 
 

average readings. To exit the MAN/MIX/AVG mode, press the      button 

 

for 2 seconds to return to normal operation.

3.  Press the      button to switch between the temperature (humidity 
 

Probe) and the K-Type temperature settings in the primary.

 

4.  Press the      button to freeze or unfreeze the displayed readings. The 
 

meter is in area setup option, press the      button to change the station 

 

of flashing digit.

 

5.  Press the      button to switch between the Light, Sound, Air Flow and 
 

Humidity settings in the secondary display.

6.  Press the      button to turn on the backlight. Press it again to turn 
 

off the backlight. Press the      button for 2 seconds to start or exit 

 

Setup. (See "Changing Setup Options.")

7.  When secondary readings show the Sound, press the      button to 
 

switch between FAST and SLOW mode. When secondary readings show 

 

the Light, press the      button for 2 seconds to zero the Light. When the 

 

meter is in Setup mode, press the      button to enter a setup option and 

 

press the      button again to store the displayed setting in memory.

 

8.  Press the      button to change the units of the primary display. In Setup 
 

mode, press the       button to scroll to the Setup option you want to 

 

change or press the      button to increase the displayed setting.

 

9.  Press the      button to change the units of the secondary display. In 
 

Setup mode, press the      button to scroll to the Setup option you want 

 

to change or press the      button to decrease the displayed setting.

5.  Button Specifications

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Summary of Contents for MT941

Page 1: ...MT941 Professional Multifunction Enviroment Meter ...

Page 2: ...2 ...

Page 3: ... Temperature Unit 8 7 5 Light Unit 9 7 6 Sound Unit 9 7 7 Offset 9 7 8 Velocity Unit 10 7 9 Flow Unit 10 7 10 Area Unit 11 7 11 Area Size 11 7 12 Auto Power Off Mode 12 7 13 Measuring RH Temperature 12 7 14 Measuring K Type Temperature 13 7 15 Measuring Sound 13 7 16 Measuring Light 13 7 17 Measuring Air Velocity Air Flow 13 7 18 Holding the Displayed Reading 14 7 19 Viewing the MIN MAX and AVG Re...

Page 4: ...r sensor and K type thermocouple Ÿ CFM CMM Thermo Anemometer is suitable for use in a wide variety of applications including plant maintenance operations environmental analysis fume hood testing and HVAC system assessments 2 Features Congratulations on your purchase of the MT941 Professional Multifunction Enviroment Meter Ÿ Large LCD display with backlight Ÿ MAX MIN and AVG measurements Ÿ Display ...

Page 5: ...ocity Air Flow 30dB 130dB 20000Lux 5 98 RH 10 30 C 50 86 F 30 9 99 C 22 50 F 31 60 C 88 140 F 99 9 99 9 C 148 212 F 100 200 C 148 328 F 100 1372 C 212 2502 F 0 40 30 m s 196 5900 ft min 3 6 108 0 km h 2 2 67 0 MPH 1 9 58 0 Knots 0 999900 CFM 0 999900 CMM 0 1 0 1 1 10 0 1 0 1 0 01 1 0 1 0 1 0 1 0 001 100 0 001 100 0 1 1 0 1 1 3 5dB at 94dB Sound level 1KHz sine wave 5 10d 3 5 RH 1 C 1 8 F 3 0 20m s...

Page 6: ...turn off the backlight Press the button for 2 seconds to start or exit Setup See Changing Setup Options 7 When secondary readings show the Sound press the button to switch between FAST and SLOW mode When secondary readings show the Light press the button for 2 seconds to zero the Light When the meter is in Setup mode press the button to enter a setup option and press the button again to store the ...

Page 7: ...und dBA dBC in Secondary Display 9 Units of Light LUX FC in Secondary Display 10 K Type Temperature Offset Option OFFSET Display 11 Entering or Exiting Setup Mode 12 Multiplier x 10 orx 100 13 Units of Flow CFM CMM in Secondary Display 14 Units of Humidity in Secondary Display 15 The Indication of Meter Communicating to PC 16 Units of Area 17 Units of velocity 18 Multiplier x10 19 Units of Tempera...

Page 8: ...a AREA Size Set Area Of Measuring Air Flow Sleep Mode SLP Yes or No 7 2 Entering or Exiting Setup 7 Changing Setup Options 7 1 Setup Options When the meter is in Setup mode the display shows SETUP Press the button for 2 seconds to start or exit Setup 7 3 Changing a Setup Option 7 4 Temperature Unit To change the temperature unit enter TEMP Unit setup operation Press the or button until the display...

Page 9: ... Unit setup operation Press the or button until the display shows dBA or dBC Press the button to store the new setting in the memory 7 6 Sound Unit The secondary display shows the temperature and the offset The primary display shows the offset You can store individual offsets for K Type temperature Press the or button to increase or decrease offsets Press the button to store the new setting in the...

Page 10: ...t enter the FLOW Unit setup operation Press the or button until the display shows CFM or CMM Press the button to store the new setting in the memory 7 9 Flow Unit Note m s meters per second km h kilometers per hour ft min feet per minute MPH miles per hour knots nautical miles per hour Note CFM ft3 min Air Velocity ft min x Area ft2 CMM m3 min Air Velocity m s x Area m2 x 60 CFM cubic feet per min...

Page 11: ... primary display shows the area being used Such as S 3 that is the three number of area size setting The numbers change circularly from 1 to 6 3 Press the or button to scroll and choose the area that you want to change 4 Press the button to indicate the area number with a flashing digit 5 Press the or button to change the flashing digit from 0 to 9 6 Press the button to change the station of flash...

Page 12: ...se appears on the display Press the button to store the new setting in the memory 7 12 Auto Power off Mode 1 Connect the RH Temperatures of Probe to the Probe Input Socket 2 Press the button to toggle showing the Temperature in the primary display 3 Press the button to toggle showing the humidity in the secondary display 4 Press the button to change the temperature units between C and F 7 13 Measu...

Page 13: ...15 Measuring Sound 7 16 Measuring Light 1 Connect the Light Probe to the Probe Input Socket 2 Press the button to change to the Light in the secondary display 3 If Light of Probe is closed secondary readings of the Light number is not 0 000 pressing the button for more than 2 seconds will zero the light The meter will reset and display 0000 from right to left 0 000 will be displayed 1 Connect the ...

Page 14: ... to left Press the button to show the air flow number 6 Press the button to change the area in secondary display 7 Press the button again to change the flow in the secondary display 1 Press the button to step through the maximum MAX minimum MIN or the average AVG readings 2 Press the button to show the MIN MAX and AVG of air velocity Temperature humidity probe and K Type Temperature 3 Press the bu...

Page 15: ...15 ...

Page 16: ...ad 7 Tunney Ext 9 Elandsfontein South Africa P O Box 888 Isando 1600 South Africa Telephone 27 11 8 2 7 5500 National Contact Number 08 61 62 5678 Sales Facsimile 27 11 822 2806 Admin Facsimile 27 11 822 1411 E mail sales major tech com www major tech com ...

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