Observator Instruments DIFF User Manual Download Page 1

Page: 1 / 26

OBSERVATOR

instruments

DIFF

Automatic volume flow meter

with pressure compensation

User manual

Version 11.2 - EN

TDC 16 July 2012

Summary of Contents for DIFF

Page 1: ...OBSERVATOR instruments DIFF Automatic volume flow meter with pressure compensation User manual Version 11 2 EN TDC 16 July 2012...

Page 2: ...t temperature unit 11 3 4 6 Technical menu 11 3 5 OVERRANGE PROTECTION 11 3 6 OFF 11 4 EXTENSION HOODS 12 5 BATTERIES 13 5 1 FIRST USE OF THE BATTERIES 13 5 2 COMPATIBLE BATTERIES 13 5 3 BATTERY LIFE...

Page 3: ...DIFF automatic volume flow meter User manual V11 2 EN Page 3 TDC 16 7 2012 OBSERVATOR instruments Page intentionally left blank...

Page 4: ...your dealer or Observator for this option The standard package contains DIFF automatic volume flow meter with pressure compensation Battery charger 4 x 1 5V AA NIMH batteries Manual Calibration report...

Page 5: ...al V11 2 EN Page 5 TDC 16 7 2012 OBSERVATOR instruments 2 Description and usage Nr Description 1 Scroll button 2 Information display 3 Measuring side DIFF 4 Air inlet exhaust 5 Point of pressure measu...

Page 6: ...other object in the DIFF 2 3 1 Inserting the batteries Charge the SANYO batteries as described in the manual that is included with the charger we recommend to read the manual carefully The included ba...

Page 7: ...s unit can be rotated to ensure a reading during the measurement Make sure that the display of the DIFF is not placed in front of the opening Putting the display in front of the air exhaust will cause...

Page 8: ...the DIFF from time to time during usage We recommend calibration of the DIFF every half an hour to secure the measuring accuracy It is necessary to calibrate the DIFF more often when the environmenta...

Page 9: ...hen the measurement is finished The value shown on the display is the measured value You can remove the DIFF from the vent The plus sign indicates that an air inlet is being measured It is also indica...

Page 10: ...essing the selection button 3 4 2 Battery The option Battery shows the percentage of battery capacity that is left It is possible that the percentage goes up after a measurement The battery status is...

Page 11: ...uring unit M3 H CFM L S Temp unit Celsius Fahrenheit 3 4 6 Technical menu The technical menu is only available by the Observator technicians 3 5 Overrange protection The measuring range goes up to 400...

Page 12: ...tring and lift the hood till the lower pull string hooks behind the sally edge of the DIFF With the lower pull string tightened you can pull the upper pull string Note that the upper pull string needs...

Page 13: ...peration time will depend on the measured flow When the maximum measured flow is 100 m3 h or lower you will be able to measure upto 2 or 3 days before the batteries need to be replaced Tips for optima...

Page 14: ...sport the DIFF always in the included transport case Store the DIFF in dry conditions Let the DIFF adjust to the ambient temperature The DIFF will adjust faster when it is hold against an exhaust vent...

Page 15: ...ator com instruments air technology support You can install DIFFiner with the standard settings Put the supplied SD card in the card reader Start DIFFiner and select the SD card in the selection menu...

Page 16: ...existing projects Click new to create a new project It is also possible to export projects to a DIFF file These files can be send to engineers on location The engineer can import these files onto the...

Page 17: ...card It is recommended to use the standard type of SD card Sandisk ultra II 2 0GB or an other class 4 SD card The time to store the project can increase significantly when a different type of SD card...

Page 18: ...on t switch of the DIFF before the data is saved Declaration of symbols D Design flow M Measured flow S Grill situation T Grill type P Grill position After you measured all the rooms you can final che...

Page 19: ...hed you can check the data on the pc Put the SD card in the reader and start DIFFiner Open the project The project data is now available on the pc The measured data can be plotted into a report by cli...

Page 20: ...enu If the message occurs when the SD card is still present it may be possible that the SD card is not inserted correctly Please re insert the SD card If the SD card is removed during the writing of d...

Page 21: ...when the DIFF is not going to be used for a couple of weeks or more Charge them fully before storage Charging the batteries prevents that they get damaged because off a full discharge 8 2 Disposal of...

Page 22: ...Return the DIFF to Observator for factory calibration or repair Difficult to read display Check the settings of the contrast and backlight chapter 3 4 Display turns dark This is caused by ESD or an au...

Page 23: ...st charger for 4xAA NiMH batteries 100 240V Excl Batteries AT 240 Hood 310x1534mm nylon with frame and fiber support AT 241 Hood 310x1234mm nylon with frame and fiber support AT 242 Hood 330x330mm PET...

Page 24: ...2 OBSERVATOR instruments 10 Warranty During the warranty period of 12 months after delivery this product will be repaired without charge for either parts or labor This limited warranty does not cover...

Page 25: ...DIFF automatic volume flow meter User manual V11 2 EN Page 25 TDC 16 7 2012 OBSERVATOR instruments Appendix Declaration of conformity...

Page 26: ...DIFF automatic volume flow meter User manual V11 2 EN Page 26 TDC 16 7 2012 OBSERVATOR instruments...

Search results

Summary of Contents for DIFF

Reviews:

Related manuals for DIFF

Brands by name

Popular brands

Observator Instruments DIFF, User Manual

Search results

Summary of Contents for DIFF

Reviews:

Related manuals for DIFF

Brands by name

Popular brands