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Chapter 4

 

 
Maintenance 

The Alnor Model AXD620/Airflow Instruments PVM620 requires very 
little maintenance to keep it performing well.  

Recalibration 

To maintain a high degree of accuracy in your measurements, we 
recommend that you return your Alnor Model AXD620/Airflow 
Instruments PVM620 to TSI for annual recalibration. Please contact 
one of TSI’s offices or your local distributor to make service 
arrangements and to receive a Return Material Authorization (RMA) 
number. 

The Alnor Model AXD620/Airflow Instruments PVM620 can also be 
recalibrated in the field using the CALIBRATION menu. These field 
adjustments are intended to make minor changes in calibration to 
match a user's calibration standards. The field adjustment is 

NOT

 

intended as a complete calibration capability. For complete, multiple-
point calibration and certification, the instrument must be returned to 
the factory.  

Cases 

If the instrument case or storage case needs cleaning, wipe it off with 
a soft cloth and isopropyl alcohol or a mild detergent. Never immerse 
the Alnor Model AXD620/Airflow Instruments PVM620. If the 
enclosure of the Alnor Model AXD620/Airflow Instruments PVM620 or 
the AC adapter becomes broken, it must be replaced immediately to 
prevent access to hazardous voltage.  

www.calcert.com

[email protected]

1.800.544.2843

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Summary of Contents for AIRFLOW Model PVM620

Page 1: ...MICROMANOMETER ALNOR MODEL AXD620 AIRFLOW INSTRUMENTS MODEL PVM620 OPERATION AND SERVICE MANUAL P N 1980588 REV E FEBRUARY 2016 www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30...

Page 2: ...d by anyone other than a factory authorized service center with the one exception where requirements set forth in the manual allow an operator to replace consumables or perform recommended cleaning g...

Page 3: ...of loss Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND LIABILITY which contains the complete and exclusive limited warranty of Seller This LIMITATION OF WARRANTY AND...

Page 4: ...CHAPTER 3 OPERATION 5 Keypad Functions 5 Common Terms 5 Menus 6 DISPLAY SETUP 6 PRESSURE ZERO 6 SETTINGS 6 FLOW SET UP 7 ACTUAL STANDARD SETUP 7 DATA LOGGING 7 Measurements 7 Log Mode Log Settings 8 D...

Page 5: ...ontainer Check the individual parts against the list of components below If anything is missing or damaged notify TSI immediately 1 Carrying case 2 Instrument 3 Pressure tubing 4 Static pressure tip 5...

Page 6: ...of the danger of battery acid leakage Using the Optional AC Adapter When using the AC adapter the batteries if installed will be bypassed Be sure to provide the correct voltage and frequency which is...

Page 7: ...setting a parameter Press the Menu soft key to select the Menu selections which are Display Setup Pressure Zero Settings Flow Setup Actual Std Set up Data Logging and Calibration Common Terms In this...

Page 8: ...is where you will setup the desired parameters to be displayed on the running screen With a parameter highlighted you can then use the ON soft key to have it show up on the running screen or select t...

Page 9: ...g the or key while on the main measurement screen Make adjustments with the or arrow keys and press to accept or enter the Select Kfactor menu to choose a different pre programmed flow value ACTUAL ST...

Page 10: ...Data Use this to delete all data delete test or delete sample Memory This option displays the memory available Delete All under Delete Data will clear memory and reset the memory available LogDat2TM...

Page 11: ...sing the CALIBRATION menu These field adjustments are intended to make minor changes in calibration to match a user s calibration standards The field adjustment is NOT intended as a complete calibrati...

Page 12: ...10 Chapter 4 Storage Remove the batteries when storing the unit for more than one month to prevent damage due to battery leakage www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30...

Page 13: ...ow or dead batteries Replace batteries or plug in AC adapter Dirty battery contacts Clean the battery contacts Reading fluctuates unstable Fluctuating flow Reposition probe in less turbulent flow or u...

Page 14: ...low Rate Range Actual range is a function of actual velocity pressure duct size and K factor Instrument Temperature Range Operating 40 to 113 F 5 to 45 C Storage 4 to 140 F 20 to 60 C Instrument Opera...

Page 15: ...psi 190 in H2O 360 mmHg 48 kPa 2 Pressure velocity measurements are not recommended below 1 000 ft min 5 m s and are best suited to velocities over 2000 ft min Range can vary depending on barometric...

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