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1.

Safety Instructions

1.1.

General

This  manual  contains  detailed
information  about  the  product
and  instructions for its installati-
on, operation and maintenance.
Operators  and  other  technical

personnel  responsible  for  the  equipment  must
read this thoroughly before attempting to install or
operate  this  equipment.  A  copy  of  this  manual
must  always  be  kept  accessible  at  the  place  of
work for reference by concerned personnel. 

Chapter 1 (sections 1.2 through 1.7) contains ge-
neral as well as specific safety instructions. Chap-
ters  2  through  10,  covering  topics  ranging  from
intended purpose of the equipment to its final dis-
posal,  also  include  important  points  relating  to
safety. Overlooking or ignoring any of these safety
points  can  endanger  humans  and  animals,  and
possibly cause damage to other equipment. 

1.2.

Personnel Qualification

Personnel  responsible  for  installation,  operation,
maintenance and  inspection  of this  product must
have  the  qualifications,  training  and  experience
necessary  to  carry  out  such  work  on  this  type  of
equipment. 

Qualified  personnel  are  people  who  are  able  to
judge delegated work and possible dangers due to
technical  education,  proficiency  and  experiences
and  especially  by  knowledge  about  the  relevant
norms.

When working with explosion proof constructed in-
struments personnel needs to be educated or in-
structed resp. have the authorisation to work with
explosion  proof  instruments  in  explosion-hazar-
dous plants.

Table of Contents

1.

Safety Instructions

2.

Intended Applications

3.

Product Description and Functions

4.

Installation

5.

Commissioning

6.

Maintenance

7.

Transport

8.

Service

9.

Accessories

10. Disposal
11. Specifications
12. Dimensions
13. Ordering Code
14. Declaration of Conformity

Data Sheet and Instruction Manual

DE44 Digital 2-Channel Differential Pressure Switch / Transmitter

DE44#######KR###

Gas Explosion Proof to Zone 2

Contact: EK Engineering (India)
Web: www.ekeindia.com
Email: [email protected]

Summary of Contents for DE44 KR Series

Page 1: ...tallation operation maintenance and inspection of this product must have the qualifications training and experience necessary to carry out such work on this type of equipment Qualified personnel are people who are able to judge delegated work and possible dangers due to technical education proficiency and experiences and especially by knowledge about the relevant norms When working with explosion ...

Page 2: ...oduct if and as necessary should be done only by Fischer Mess und Regeltechnik GmbH 1 6 Operational Restrictions The operational reliability of the product is guaranteed only when used for intended purposes The product must be selected and configured for use specifically with defi ned process media The limiting values of operating pa rameters as given in the product specification sheet must never ...

Page 3: ...hazardous areas e g EN 60079 14 EN 50014 Operating supply voltage 24 V DC AC must not excess 32 V DC AC neither per temporary inter ferences Supply wiring system must be protec ted by Si 315 T For recommended current supply see 11 Specifi cations Parametrisation by PC serial interface adaptor EU03 F300 is permitted only in safe areas outside explosion hazardous areas zone 2 5 Commissioning Power s...

Page 4: ...s again û to store the selection and EIN will appear again in the digital display To exit the set up mode press ÿ until ESc appears and then press û The current pressure measured value is indicated again and the appropriate symbol of the unit of measurement to the right of the digital display is lit The digital display is limited to a count of 1999 Therefore all the available units of measurement ...

Page 5: ... oG2 and oEr specify the limits of the signal output current or voltage that are not to be exceeded irrespective of the actual pressure These limit values have higher priority than the MA and ME pressure span settings These settings serve mainly to prevent control systems from interpreting brief pressure excursions outside the measuring range as error fault events oG1 sets the out put signal minim...

Page 6: ...tput turns on when the measured va lue exceeds R1A R1E and turns off again when the measured value falls below R1A R1E If R1A is larger than R1E the switching output turns on when the measured value falls between R1A and R1E i e when R1E measured value R1A window limit function Both parameters can be independently adjusted over the full measuring range If the unit of measurement is changed the swi...

Page 7: ...easuring range start point The value of the measured variable corresponding with the mi nimum value of the output signal 0 V 0 mA or 4 mA depending on the instrument version ME Measuring range end point The value of the measured variable corresponding with the ma ximum value of the output signal 10 V or 20 mA depending on the instrument version dPF Position of decimal place for free unit MAF Measu...

Page 8: ...htness Check the integrity of all electrical connections of the instruments Inspection and test schedules depend on operating and site conditions The operating manuals of other equip ment to which the transmitter is connected must be read thoroughly to ensure that all of them work correctly when connected together 7 Transport The product must be protected against shock and vibra tion during transp...

Page 9: ...9 11 Specifications 11 1 General Two independent differential pressure sensors Contact EK Engineering India Web www ekeindia com Email india eke gmail com ...

Page 10: ...e for signal output display seperated Display function 0 0 Pressure port 1 only 0 1 Pressure port 2 only 0 2 25 5 Display alternating time 0 Relay switch 1 2 Activation point de activation point response time delay 0 0 100 0 secs logic N O or N C Measurement unit selection mbar Pa free unit start value end value and decimal place for free unit Zero suppression 0 100 counts 1 Output signal start en...

Page 11: ... mbar 5 8 0 100 mbar 500 mbar 5 9 2 5 2 5 mbar 50 mbar A 6 4 4 mbar 50 mbar A 7 6 6 mbar 100 mbar A 8 10 10 mbar 100 mbar A 9 16 16 mbar 250 mbar B 1 25 25 mbar 250 mbar B 2 40 40 mbar 500 mbar C 5 60 60 mbar 500 mbar B 3 Pressure Connections Threaded hose clamp connectors for 6 4 mm hose 4 0 Threaded hose clamp connectors for 8 6 mm hose 4 1 Signal Output Pressure Port I only No signal output 0 C...

Page 12: ...switch 2 m 06401994 Cable with M12 connector 4 pin for switch 5 m 06401995 Cable with M12 connector 5 pin for supply signal 2 m 06401996 Cable with M12 connector 5 pin for supply signal 5 m 04005144 Wall mounting adaptor plate EU03 F300 PC programming interface with SW Contact EK Engineering India Web www ekeindia com Email india eke gmail com ...

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