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Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully 
the validity of this document with respect to his product. manual-no.: 

 999001 / 04/04/2012

Note: 

Some of the components on the printed circuit board are sensitive to electrostatic discharge.

Do not touch components. If necessary, ground the printed circuit board and the person replacing the 

battery suitably.

Attention:

 Use only a battery of the recommended type (see ”Technical data”).

The battery must not be charged or connected to an external voltage.

  Remove the battery.

  Insert the new battery into the battery compartment cor-

rectly matching the positive and negative polarity (as 

shown by the engraving inside the compartment).

 When reassembling the vacuum gauge, make sure that 

the switch pad and the printed circuit board are positioned 

correctly.

  Carefully screw both parts of the housing together.

battery

switch pad

printed circuit board

Replacing the battery

 Unscrew the four countersunk head screws at the rear 

side of the housing with a Phillips screw driver.

  Disassemble the housing parts carefully.

 

Attention

: The two housing parts are connected by the 

sensor cable.

Summary of Contents for DVR 2

Page 1: ...ompletely and unchanged It is strictly the users responsibility to check carefully the validity of this document with respect to his product manual no 999001 04 04 2012 DVR 2 Analog Digital Rough Vacu...

Page 2: ...our company is tested in tensively including an endurance run Therefore faults even those which occur rarely are identified and can be eliminated immediately The achievement of the specifications afte...

Page 3: ...t of the vacuum gauge DVR 2 11 Adjustment at atmospheric pressure 11 Adjustment under vacuum 11 Adjustment to a reference pressure 12 Calibration in the factory 12 Replacing the battery 13 Notes on re...

Page 4: ...sing check maximum temperature Ensure that the maximum permitted gas temperature at the pressure transducer see Technical data is not exceeded Use the equipment and all system parts for the intended u...

Page 5: ...mixtures Ensure that the materials of the equipment s wetted parts are compatible with the substances in the vacuum system see section Technical data Safety during operation Adopt suitable measures to...

Page 6: ...nterior components of the device can only be repaired at the factory Returned products will not be repaired or calibrated until the completed health and safety clearance form has been received In orde...

Page 7: ...reful adjustment and at constant temperature 1 mbar 0 75 Torr 1 digit Temperature coefficient 0 07 mbar K 0 05 Torr K Maximum permissible temperature of gaseous media at pressure transducer continuous...

Page 8: ...key Switch the vacuum gauge off Press MODE key and keep it pressed while switching the DVR 2 on ON OFF key The pressure unit as of the last operation Torr mbar or hPa is displayed Press ON OFF key to...

Page 9: ...easuring cycle frequent measurement in case of great pressure change S1 1 measurement in 3s S2 1 measurement in 1s S3 3 measurements in 1s The flashing of the arrow only S1 S2 or S3 symbol izes the fr...

Page 10: ...cause Remedy No display or display disappears Automatic sleep mode Switch on increase opera ting time if necessary Battery flat Replace battery Other cause Contact local distributor Incorrect pressure...

Page 11: ...tion Determine the exact actual atmospheric pressure e g by using an accurate barometer or get accurate reading from the weather service e g at the next airport etc take into account the differ ence i...

Page 12: ...e calibra tion of inspection measuring and test equipment at specified intervals To document that the vacuum gauges calibrated are traceable to national standards of the PTB Physikalisch Technische Bu...

Page 13: ...Technical data The battery must not be charged or connected to an external voltage Remove the battery Insert the new battery into the battery compartment cor rectly matching the positive and negative...

Page 14: ...nvironment the product must be decontami nated prior to sending it back to the factory To expedite repair and to reduce costs please enclose a detailed description of the problem and the product s ope...

Page 15: ...n in contact with the device are listed in section 5 and that the information is complete and that we have not withheld any information We declare that all measures where applicable have been taken li...

Page 16: ...ummer Order number Num ro d article 682902 Seriennummer Serial number Num ro de s rie Siehe Typenschild See rating plate Voir plaque signal tique Angewandte harmonisierte Normen Harmonized standards a...

Page 17: ...lts obtained under test conditions for specific applications depend on a number of factors beyond our control It is therefore strictly the users responsibility to very carefully check the validity of...

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