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Data Sheet and Instruction Manual
DE38 Digital Differential Pressure Transmitter / Switch
DE38#######KR###
Gas Explosion Proof to Zone 2
Table of Contents
1.
2.
3.
4.
5.
6.
7.
8.
9.
EEx nA IIC T4
-10 C T
amb
1.
Safety Instructions
1.1.
General
technical personnel responsible for the equipment
must read this thoroughly before attempting to in-
stall or operate this equipment. A copy of this ma-
nual must always be kept accessible at the place
of work for reference by concerned personnel.
Chapter 1 (sections 1.2 through 1.7) contains
general as well as specific safety instructions.
Chapters 2 through 10, covering topics ranging
from intended purpose of the equipment to its final
disposal, 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.
II 3 G c
60 C
This manual contains detailed
information about the product
and instructions for its installa-
tion,
operation
and
tenance. Operators and other
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.
main-
Qualified personnel are people who are able to ju-
dge 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
instruments personnel needs to be educated or
instructed resp. have the authorisation to work
with explosion proof instruments in explosion-
hazardous plants.
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Summary of Contents for FISCHER DE38
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Page 1: Table Of Contents
Data Sheet and Instruction Manual DE38 Digital Differential Pressure Transmitter / Switch DE38#######KR### Gas Explosion Proof to Zone 2 Table of Contents Safety Instructions Intended Applications Product Description and Functions Installation Commissioning Maintenance Transport Service Accessories 10. Disposal 11. Specifications 12. -
Page 2: Safety Instructions
Detailed informa- Display and limit detection of differential pressure of ga- tion is available in relevant published norms (DIN EN, ses and fluids. The DE38 must be used only for applica- UVW in Germany; and equivalents in other countries), tions... -
Page 3: Installation
is reached. Fastened to the center of the diaphragm is an • Do not disconnect plug live wire. axial rod, the other end of which forms the moving core • To ensure safe operation supply wiring system of a precision LVDT displacement sensor element. The must meet specifications for zone 2, class 3. - Page 4 5.2. Display documentation purposes. Further information about this PC software is given in the software documentation. 5.3.1. Selecting the Unit of Pressure Measurement Make the necessary electrical connections (signal, pow- er supply) to the instrument. Its pressure sensor must be pressure-free (i.e.
- Page 5 time-constant (averaging filter) in the user selectable These limit values have higher priority than the range of 0.0 to 100.0 secs. When the damping is set to pressure span settings. maximum, it took more than 2 minutes to reach the final value for a full scale pressure jump.
- Page 6 5.3.7. Look-up Table Programming (F = 3..30) is larger than , the switching output turns on when the measured value falls between : i.e., If the value of set-up parameter is selected equal to or when < measured value < (window limit function).
- Page 7 5.4. Overview of Set-up Parameters • Measuring range end point (displayed value) for free unit. the instrument is turned on, it briefly displays the softwa- re version number, and then switches automatically to • Zero stabilization. Range = 0 to 100 counts. û...
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Page 8: Maintenance
Service Any defective devices or devices with missing parts should be retourned to Fischer Mess- und Regeltechnik GmbH. For quick service contact our service department. Remaining medium in and on dismant- led measuring instruments may cause... -
Page 9: Specifications
11. Specifications General Measuring mbar 0-400 0-600 0-1000 0-1600 0-1.000 0-1.600 0-2.50 0-4.00 0-6.00 range max. static operating 16 bar pressure straight line 2.5 % error (max.)° °: Straight line error = Straight line 0.8 % nonlinearity + hysteresis; at error (typ.)°... -
Page 10: Dimensions
11.1. Programming Via membrane key-switches or by using PC-programming interface (accessory), programming mode can be pass- word protected. Settings: Input filtering 0.0 ... 100.0 secs (10 / 90% step response time) for signal output, display seperated Relay / switch 1 / 2 activation point, de-activation point, response time delay (0.0 ... -
Page 11: Ordering Code
13. Ordering Code Digital Differential Pressure Transmitter / Switch DE38 Measuring Range 0 . . 400 mbar................... > 0 ..0.6 bar................... > 0 ..1 bar................... > 0 ..1.6 bar................... >... -
Page 12: Declaration Of Conformity
Technische Änderungen vorbehalten • Subject to change without notice • Changements techniques sous réserve Fischer Mess- und Regeltechnik GmbH • Bielefelder Str. 37a • D-32107 Bad Salzuflen • Tel. +49 5222 9740 • Fax +49 5222 7170 eMail: info@fischermesstechnik.de • www.fischermesstechnik.de...
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