FISCHER DE46 R Series Operating Manual
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FISCHER DE46 R Series Operating Manual

Digital differential pressure switch / transmitter with colour-change lcd
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II 3G Ex nA IIC T4 Gc
II 3D Ex tc IIIB T125°C Dc
Operating manual
DE46 ... R/S
Digital differential pressure switch / transmitter
with colour-change LCD
for explosive areas
Dust explosion protection zone 22, dry dusts
Gas explosion protection zone 2, gases and vapors

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Summary of Contents for FISCHER DE46 R Series

  • Page 1 II 3G Ex nA IIC T4 Gc II 3D Ex tc IIIB T125°C Dc Operating manual DE46 ... R/S Digital differential pressure switch / transmitter with colour-change LCD for explosive areas Dust explosion protection zone 22, dry dusts Gas explosion protection zone 2, gases and vapors...
  • Page 2 Great care was taken when compiling the texts and illustrations; nevertheless, errors cannot be ruled out. The company FISCHER Mess- und Regeltechnik GmbH will not accept any legal responsibility or liability for this.

  • Page 3: Table Of Contents

    FISCHER Mess- und Regeltechnik GmbH Table of Content Table of Content 1 Safety instructions......................4 1.1 General........................... 1.2 Personnel Qualification ......................1.3 Risks due to Non-Observance of Safety Instructions............. 1.4 Safety Instructions for the Operating Company and the Operator .........

  • Page 4: Safety Instructions

    1 | Safety instructions FISCHER Mess- und Regeltechnik GmbH 1 Safety instructions 1.1 General This operating manual contains basic instructions for the installation, operation and maintenance of the device that must be followed without fail. It must be read by the installer, the operator and the responsible specialist personnel be- fore installing and commissioning the device.

  • Page 5: Unauthorised Modification

    FISCHER Mess- und Regeltechnik GmbH Safety instructions | 1 The instrument must be decommissioned and secured against inadvertent re- operation if a situation arises in which it must be assumed that safe operation is no longer possible. Reasons for this assumption could be: •...

  • Page 6: Pictogram Explanation

    1 | Safety instructions FISCHER Mess- und Regeltechnik GmbH 1.8 Pictogram explanation DANGER Type and source of danger This indicates a direct dangerous situation that could lead to death or serious injury (highest danger level). 1. Avoid danger by observing the valid safety regulations.

  • Page 7: Product And Functional Description

    FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2 2 Product and functional description 2.1 Use as intended The DE46 is a multi-functional switching unit with an optional transmitter output. It is suitable for measuring overpressure, under-pressure and differential pres- sure in gaseous media.

  • Page 8: Part Designations

    2 | Product and functional description FISCHER Mess- und Regeltechnik GmbH 2.2 Part designations Fig. 1: DE46 with LCD ATEX 1 Foil keypad 2 LC display 3 Casing lid 4 Lower part of casing 5 M12 plug connector (connector 2) 6 M12 plug connector (connector 1)

  • Page 9: Design And Mode Of Operation

    FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2 2.4 Design and mode of operation This switching device is based on a capacitive sensor element that is suitable for measuring overpressure, underpressure and differential pressure. The measured pressure acts on the sensor element with a micromechanically produced differential condenser in silicon-glass technology.

  • Page 10: Installation

    3 | Installation FISCHER Mess- und Regeltechnik GmbH 3 Installation 3.1 General The device is designed for installation onto flat assembly plates. For screw con- nection to the assembly plate, the device features four assembly bores on its back, which can be used for Ø 3.5 mm tapping screws.

  • Page 11: Electrical Connection

    FISCHER Mess- und Regeltechnik GmbH Installation | 3 If the pressure sensing lines are already pressurised at the time of commission- ing, zero-point control and adjustment cannot be performed. In such cases, the device should be only connected to the mains without the pressure sensing lines.
  • Page 12 3 | Installation FISCHER Mess- und Regeltechnik GmbH Connector 1: Supply and output signal Pos Description Cable colour Coding A Internal bridge Supply brown -Sig Signal white Supply blue +Sig Signal black n.c. Fig. 5: M12 Plug 5-pin Connector 2: Switching outputs...

  • Page 13: Commissioning

    FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 4 Commissioning 4.1 General All electrical supply, operating and measuring lines, and the pressure connec- tions must have been correctly installed before commissioning. All supply lines are arranged so that there are no mechanical forces acting on the device.
  • Page 14 4 | Commissioning FISCHER Mess- und Regeltechnik GmbH The measured value can also be shown in a bar chart. The measured value is also shown in smaller pictures as a number. During the programming, the menu items and the associated parameters are shown on the display.

  • Page 15: Menu Levels

    FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 4.4 Menu levels The menu levels are structured as follows: Menu level Output Quit Reception Menu Level Switch points Menu Level Input Menu Level Measuring Menu Level Output Menu Level Function Menu Level...
  • Page 16 4 | Commissioning FISCHER Mess- und Regeltechnik GmbH 4.4.1 Menu Level Switch points Parameter name Description Value range SP1 On Switch point 1 On MRS-50% … MRE+50% SP1 Off Switching point 1 off MRS-50% … MRE+50% SP1 Delay Switching point 1 delay 0…1800 s...
  • Page 17 FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 4.4.2 Menu Level Input Parameter name Description Value range Absorption Attenuation, damping 0…100 s Offset corr. Offset correction ⅓ basic measuring range Zero-pt. wind. Zero-point window ⅓ basic measuring range If there are unsteady pressure readings during operation, you can use the para-...
  • Page 18 4 | Commissioning FISCHER Mess- und Regeltechnik GmbH 4.4.3 Menu Level Measuring Parameter name Description Value range MB start Measuring range start Basic measuring range MB end Measuring range end Basic measuring range Unit Measuring range unit bar, mbar, Pa, kPa, MPa, psi,...
  • Page 19 FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 The value defined via the parameter Error signal is issued if the device detects an internal error and can no longer work correctly. It should be noted here that not all potential errors and faults can be detected by the device itself.
  • Page 20 4 | Commissioning FISCHER Mess- und Regeltechnik GmbH Tables function This function allows free adjustment of the input variable to the display and out- put via a table with up to 30 support points. A value pair comprising a measured value and display value is issued for every support point.
  • Page 21 FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 Value pair +14,6 mbar +8,6 % +0,0 ... +100,0 mbar 1 input mark (value flashes) 2 allowed range of values Fig. 13: Value pair Value pair 2 Start 100.0 Measuring range Fig. 14: Table function (example)
  • Page 22 4 | Commissioning FISCHER Mess- und Regeltechnik GmbH If permanent lighting is not required, the parameter Lighting time can be used to define when the lighting should be switched off after the last time a button is pressed. In addition to permanent lighting (0 s), automatic shut-down after 10…...
  • Page 23 FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 The parameter Delay offers a further option to prevent unwanted colour changes. The colour change here can be delayed between 0…1800 s. The parameter Lighting can be used to define when the lighting should be switched off after the last time a button is pressed.
  • Page 24 4 | Commissioning FISCHER Mess- und Regeltechnik GmbH NOTICE Unused range If a range is not to be used, the associated switch thresholds (F1…F4) can be set to the same value. Example The parameter Colour is set to Auto2. Only the green, yellow and red ranges are required here.
  • Page 25 FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 Password can be used to protect the menu against unauthorised access. The password is a figure from 1 to 999. The input 0 means that no password is active. The password needs to be set if the user presses the button in normal mode to enter the menu.

  • Page 26: Maintenance

    5 | Maintenance FISCHER Mess- und Regeltechnik GmbH 5 Maintenance 5.1 Maintenance The instrument is maintenance-free. We recommend the following regular in- spection to guarantee reliable operation and a long service life: • Check the function in combination with downstream components.

  • Page 27: Technical Data

    FISCHER Mess- und Regeltechnik GmbH Technical data | 6 6 Technical data Please also observe the order code here. 6.1 Input variables Measuring variable : Differential pressure for gas-like media Static operating pressure : Max. 100 kPa Bursting pressure : Max. 170 kPa Measurement range [Pa] 0…25...

  • Page 28: Auxiliary Energy

    6 | Technical data FISCHER Mess- und Regeltechnik GmbH 6.4 Auxiliary energy WARNING Supply circuit A CE-conform mains adapter with a slow 200 mA fuse only may be used in the power supply circuit. Rated Voltage 24 V AC/DC Permissible operating voltage = 20…32 V AC/DC...
  • Page 29 FISCHER Mess- und Regeltechnik GmbH Technical data | 6 6.6.1 Dimensional drawings Wall mounting plate Rear view 70.5 without wall mounting plate 61.5 Ø5 M12 plug Connector 2 Connector 1 4 x boreholes for tapping screws diam. 3.5 mm Hose screw connection...
  • Page 30 Attachment element TS35 TS35 61,5 TS15 TS32 Panel installation The DE46 is suitable for flush mounting in a FISCHER RT series panel. The in- stallation is carried out ex works. 74.5 Wall mount 82 ±0.1 Front panel cutout Weld socket M4 Fig. 20: Panel installation...

  • Page 31: Display And Operating Interface

    FISCHER Mess- und Regeltechnik GmbH Technical data | 6 6.7 Display and operating interface 4...6-digit LCD, full graphic, colour backlighting Programming Attenuation 0.0…100.0s (jump response 10/90%) Switch output Switch-off point, switch-on point, response time (0...1800s), function (NC / NO contact) Measuring range unit m / Pa / "free unit"È, starting value,...

  • Page 32: Order Codes

    7 | Order Codes FISCHER Mess- und Regeltechnik GmbH 7 Order Codes Code no. 10 11 12 17 18 19 20 21 N W D Type [1,2] Measuring range 0 … 25 Pa 0 … 50 Pa 0 … 100 Pa 0 …...

  • Page 33: Accessories

    M12 plug-in connection, nickel-plated (for ATEX devices zone 22) brass [12] Assembly option Attachment boreholes on rear side (standard) Panel assembly (flush front-mounted into a FISCHER panel) Assembly on mounting rails Panel mounting set Wall-mounting [17] Device specification Use in Zone 2 - Exposure to gases and vapours II 3G Ex nA IIC T4 Gc -10 °C ≤...
  • Page 34 7 | Order Codes FISCHER Mess- und Regeltechnik GmbH A data sheet is available on our website www.fischermesstechnik.de or on re- quest. 34/40 BA_EN_DE46_ATEX_LCD...

  • Page 35: Attachments

    FISCHER Mess- und Regeltechnik GmbH Attachments | 8 8 Attachments 8.1 EC Declaration of conformity Fig. 21: CE_EN_DE46_ATEX_LCD BA_EN_DE46_ATEX_LCD 35/40...
  • Page 36 8 | Attachments FISCHER Mess- und Regeltechnik GmbH 8.2 UKCA Declaration of Conformity Fig. 22: UKCA_EN_DE46_LCD_ATEX 36/40 BA_EN_DE46_ATEX_LCD...
  • Page 37 FISCHER Mess- und Regeltechnik GmbH Notes BA_EN_DE46_ATEX_LCD 37/40...
  • Page 38 FISCHER Mess- und Regeltechnik GmbH Notes 38/40 BA_EN_DE46_ATEX_LCD...
  • Page 39 FISCHER Mess- und Regeltechnik GmbH Notes BA_EN_DE46_ATEX_LCD 39/40...
  • Page 40 Mess- und Regeltechnik GmbH Bielefelder Str. 37a D-32107 Bad Salzuflen Tel. +49 5222 974-0 Fax +49 5222 7170 www.fischermesstechnik.de info@fischermesstechnik.de Technische Änderungen vorbehalten. Subject to technical changes. Sous réserve de modifications techniques.

This manual is also suitable for:

De46 s series

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