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DIFF automatic volume flow meter

User manual

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 measuring

6

Connection temperature sensor/motor

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Содержание DIFF

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

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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