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BRUEL & KJAER 2694A, User Manual

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16-channel DeltaTron Conditioning
Amplifiers Types 2694 A, 2694 B, 2694 C 
and 2694 D

Volume 1: User Manual

English BE 1644 – 11

Cover.fm  Page 1  Friday, May 18, 2001  11:56 AM

Summary of Contents for 2694A

Page 1: ...600 Italy 02 57 68061 Japan 03 3779 8671 Republic of Korea 02 3473 0605 Netherlands 31 318 559290 Norway 66771155 Poland 22 858 9392 Portugal 1 4711453 Singapore 65 377 4512 Slovak Republic 421 7 544...

Page 2: ...BE 1644 11 May 2001 16 channel Conditioning Amplifier Type 2694 User Manual Valid for version 1 0 or higher of the Type 2694 Embedded Software BE164411 book Page 1 Friday May 18 2001 11 51 AM...

Page 3: ...BE 1644 11 May 2001 BE164411 book Page 2 Friday May 18 2001 11 51 AM...

Page 4: ...llowing Safety Symbols The apparatus will be marked with this symbol when it is important that you refer to the associated warning statements given in the manual Protective Earth Terminal Hazardous Vo...

Page 5: ...BE164411 book Page 4 Friday May 18 2001 11 51 AM...

Page 6: ...and Connections 9 Front Panel 9 EMC Immunity 10 CHAPTER 3 Operation Overview 11 Preliminary 11 CHAPTER 4 The Use of Control Software BZ 5291 15 Introduction 15 Transducer Setup 20 CHAPTER 5 Maintenanc...

Page 7: ...BE164411 book Page 4 Friday May 18 2001 11 51 AM...

Page 8: ...lways be updated changed to another configuration if required but for calibration and reliability reasons the unit must first be returned to Br el Kj r for updating Note Type 2694 B cannot be upgraded...

Page 9: ...d double integration on all channels 000280 1 Floating Single ended Input Input Protection Voltage Mode 6mA Transducer Supply IEEE 1451 4 0 1Hz H p 1Hz H P Disable 10dB 0dB 10dB 20dB 30dB 40dB Optiona...

Page 10: ...in 0 dB Gain 10 dB Gain 20 dB Gain 30 dB Gain 40 dB IEPE DeltaTron Input Voltage Input IEEE P1451 4 Transducer Support Optional Filters Possible Yes No Yes Yes Filters Installed e g A B C D or single...

Page 11: ...tioning amplifiers is automatically detected by the software and displayed in the File and Link views see Fig 1 4 You designate the port s used for the range of conditioning amplifiers yourself You ca...

Page 12: ...r setup see Fig 1 5 you can specify the settings of filters and gain for each channel This includes high pass filters optional filters gain in steps of 10 dB multiplexer channel tachometer and whether...

Page 13: ...is only for use in the analyzers or data acquisi tion systems accompanying the conditioning amplifier Sensitivities from other non TEDS transducers cannot be entered manually in the Sensitivity field...

Page 14: ...one COM port on a PC Each unit is automatically addressed from the PC program Setup and Control software BZ 5291 which is included with each Type 2694 unit One other serially controlled instrument fo...

Page 15: ...16 channel Conditioning Amplifier Type 2694 User Manual 8 BE164411 book Page 8 Friday May 18 2001 11 51 AM...

Page 16: ...sing the control software DC 10 33 V Coaxial DC socket for connection to an external 10 to 33 V DC source Complies with ISO DP 7637 1 and DP 7637 2 24 V Warning The DC socket cable ground is not conne...

Page 17: ...t is used in elec trically hostile environments such as powerful electrical fields In such cases the cables for the power supply the RS 232 interface and all floating inputs outputs must be fitted wit...

Page 18: ...eet the strict ISO 7637 1 Road Vehicles Electrical disturbance by conduction and coupling requirements Power Supply External Power The conditioning amplifier is powered from an external DC supply whic...

Page 19: ...n racks For automotive use a special portable 19 rack KQ 0158 is available Grounding Ground loops are a common problem in large vibration measurement installations There are different ways of avoiding...

Page 20: ...ers are connected to the same ground structure In such setups magnetic fields will induce current into the loop causing noise signals In such cases the best solution is to select floating inputs excep...

Page 21: ...16 channel Conditioning Amplifier Type 2694 User Manual 14 BE164411 book Page 14 Friday May 18 2001 11 51 AM...

Page 22: ...ponding to individual channels and the columns corresponding to different channel parameters Column width is adjustable by dragging the column edges with the mouse and extra columns can be inserted an...

Page 23: ...y adjusted by right clicking on individual cells choosing an option from the scroll down list and clicking the Send Parameters button on the task bar afterwards Overloads are covered in the Overload c...

Page 24: ...e Integration The acceleration signal is integrated once to provide a velocity output signal This is the instantaneous vibration velocity magnitude Double Integration The acceleration signal is integr...

Page 25: ...alid The overload conditions listed in Table 4 3 are indicated by the red LEDs on the front panel for the respective channels The LEDs indicate instantane ous overload conditions Alternatively the ove...

Page 26: ...ansducer Current Overload Another type of overload not detected by Condition ing Amplifier Type 2694 is the transducer current overload This occurs when exces sive drive current is required based on t...

Page 27: ...sensitivity and measurement units in this setup menu When a channel is disabled its LEDs are not lit Note Changing the sensitivity has no effect on the amplification it is only informa tion for the us...

Page 28: ...al Fig 4 2 Connections of the BNT socket for DeltaTron input When used with BNC cables the connector will function as a normal BNC connector Voltage input mode is used for general voltage input signal...

Page 29: ...ccelerometer 1 1 1 4 Accelerometer transfer function 65 1 1 5 Charge amplifier accelerometer 321 2 2 6 Charge amplifier transfer function accelerometer 577 2 2 7 Microphone integrated preamplifier 769...

Page 30: ...hed Software Version Shows the version number for the boot and application software that constitutes the current Type 2694 program These numbers are only changed if the Type 2694 ampli fier is updated...

Page 31: ...16 channel Conditioning Amplifier Type 2694 User Manual 24 BE164411 book Page 24 Friday May 18 2001 11 51 AM...

Page 32: ...emicals avoid using strong detergents Be careful not to allow water droplets to enter the ventilation holes Service and Repair Hardware The Type 2694 Range of Conditioning Amplifiers are designed and...

Page 33: ...r it not being possible to turn it on there are a number of possible causes and solutions l Heavily loaded outputs remove loads l DC supply voltage too low 10 V at the Type 2694 power input check supp...

Page 34: ...nnel to channel Phase Match calculated values 1 flow 2 degrees 10 flow 0 25 degrees 100 flow 0 025 degrees Flexible Filter Configuration Built in filters High pass filters versions A C and D There are...

Page 35: ...TAL CONTROL INTERFACE Serial Interface RS 232 Computer Control All functions are controlled via the RS 232 interface You can daisy chain up to 16 units on each COM port Support of Transducers with TED...

Page 36: ...t for measurement control and laboratory use EMC requirements Part 1 General requirements EN 50082 1 Generic immunity standard Part 1 Residential commercial and light industry EN 50082 2 Generic immun...

Page 37: ...16 channel Conditioning Amplifier Type 2694 User Manual 30 BE164411 book Page 30 Friday May 18 2001 11 51 AM...

Page 38: ...n 12 Double integration Filters 17 Drive current 19 E Electromagnetic compatibility 11 EMC immunity 10 29 Environmental Electromagnetic compatibility 11 Noise 17 Susceptibility 28 Temperature 11 29 Ex...

Page 39: ...ad Indications 18 Internal signal 16 20 Voltage 19 P Peak meter menu 18 Phase errors 17 Potential difference 12 Power Consumption 11 External 11 28 Supply 11 R Rack mounting 12 Repair 25 Revision stat...

Page 40: ...INDEX 33 V Version number 23 Voltage Bias 19 DC supply 11 Mains range 12 BE164411 book Page 33 Friday May 18 2001 11 51 AM...

Page 41: ...16 channel Conditioning Amplifier Type 2694 User Manual 34 BE164411 book Page 34 Friday May 18 2001 11 51 AM...

Page 42: ...600 Italy 02 57 68061 Japan 03 3779 8671 Republic of Korea 02 3473 0605 Netherlands 31 318 559290 Norway 66771155 Poland 22 858 9392 Portugal 1 4711453 Singapore 65 377 4512 Slovak Republic 421 7 544...

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