HESCH HE 5422 MR Operating Manual
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HESCH HE 5422 MR Operating Manual

Differential pressure regulator with measuring hose cleaning
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HE 5422 MR
Differential pressure regulator with measuring hose cleaning
Operating manual
Translation of the operating manual
(Original version German)

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Summary of Contents for HESCH HE 5422 MR

  • Page 1 HE 5422 MR Differential pressure regulator with measuring hose cleaning Operating manual Translation of the operating manual (Original version German)
  • Page 2 HESCH Industrie Elektronik GmbH, Documentation Department Copyrights © Copyright 2014 HESCH Industrie-Elektronik GmbH. All rights reserved. The content including pictures and the design of this manual are subject to copyright protection and other laws for protection of intellectual property. The dissemination or alteration of the content of this manual is prohibited.

  • Page 3: Table Of Contents

    10.1 Notes ..............32 Operating manual HE 5422 MR...

  • Page 4: Foreword

    Maintenance and service Information regarding control operations and disposal Target group These operating instructions are intended for qualified electricians that will install, wire, commission and parametrize the HE 5422 MR Differential Pressure Regulator. Operating manual HE 5422 MR Version 1.2...
  • Page 5 6.1: Supplemented factory setting of Δp-Measuring-range (mbar). Chapter 9: Added declaration of conformity. Chapter 8: Added error message (E 4). 03/2019 / 1.2 Chapter 3.4 Technical data: Operating temperature in EX zone added. Operating manual HE 5422 MR Version 1.2...

  • Page 6: Legal Provisions

    Manufacturer HESCH Industrie-Elektronik GmbH, Boschstraße 8, D-31535 Neustadt, Germany Intended use The HE 5422 MR Differential Pressure Regulator serves the purpose of measuring the dif-  ferential pressure using filter elements as part of the industrial fabric filter technologies and to operate a valve control unit.

  • Page 7: Safety Information

    Warning of explosive atmosphere! Warning of dangerous electrical voltage! Warning of material damage due to electrostatic charging! Warning of material damage! Note! Indicates possible malfunctions and provides information regarding optimal oper- ating conditions. Operating manual HE 5422 MR Version 1.2...
  • Page 8 All warning notes in these operating instructions are structured in a uniform manner. The pictogram designates the type of danger. SIGNAL WORD! An informative text describes the danger and suggests how it can be avoided. Operating manual HE 5422 MR Version 1.2...

  • Page 9: Safety During The Individual Phases Of Operation

    Clean soiled contacts using oil-free compressed air or spirit and a lint-free cloth. Material damage due to electrostatic charging! Observe the safety measures according to DIN EN 61340-51/-3 in order to pre- vent electrostatic discharging! Operating manual HE 5422 MR Version 1.2...
  • Page 10 It is only permitted to clean the housing with wet cleaning agents in order to avoid static  charging. It is required to clean the device in order to prevent increased dust formation.  Operating manual HE 5422 MR Version 1.2...

  • Page 11: Device Description

    Chapter 3 Device description Device description Overview Fig. 3.1: Overview A. Type designation B. Display and control elements C. Cable glands Operating manual HE 5422 MR Version 1.2...

  • Page 12: Display And Control Elements

    Post cleaning time Normal operation: LED lights up when post cleaning is active  Parametrization mode: LED flashes when the parameter can be selected  Blowing time: opening time of the blow air valve Operating manual HE 5422 MR Version 1.2...

  • Page 13: Differential Pressure Column

    Post cleaning threshold Zeroing Fig. 3.3: Differential pressure column In normal operating mode, the LEDs serve the purpose of displaying the differential pressure. In parametrization mode, the selected parameter value is indicated by flashing. Operating manual HE 5422 MR Version 1.2...

  • Page 14: Technical Data

    Electrical connections: Power supply: rigid/flex cross-section 2.5 mm ; flex.: max. 1.5 mm  with wire end ferrule Rest: rigid/flex cross-section 1.5 mm ; flex.: max. 0.75 mm with  wire end ferrule Operating manual HE 5422 MR Version 1.2...
  • Page 15 -40°C … +85°C Operation -20°C … +50°C  in EX zone: -20 °C ... +40 °C  Relative humidity Relative humidity 95%, no condensation allowed, KUF in accordance with DIN 40400 Subject to technical changes. Operating manual HE 5422 MR Version 1.2...

  • Page 16: Installation

    Scope of delivery HE 5422 MR  Operating Manual  Note! After receiving the delivery, check it for completeness and obvious defects. In case of a complaint, immediately contact your local HESCH representative. Operating manual HE 5422 MR Version 1.2...

  • Page 17: Electrical Commissioning

    Only perform the electrical installation in a dead-voltage state. Material damage due to electrostatic charging! Observe the safety measures according to DIN EN 61340-51/-3 in order to pre- vent electrostatic discharging! Note! Only qualified specialists may work on the electronics. Operating manual HE 5422 MR Version 1.2...

  • Page 18: Supply Voltage

    2. Read the supply voltage value off the type plate (for example 100 – 240 VAC and 24 VDC mains voltage). 3. Connect PE conductors. Note! Both supply voltages may be connected at the same time. Operating manual HE 5422 MR Version 1.2...

  • Page 19: Connection Diagram

    The device is equipped with 4 potential-free relay outputs. The contacts can each be loaded with 250 VAC / 5 A. Analogue output The current differential pressure is reported by a galvanically isolated 4…20 mA signal. Operating manual HE 5422 MR Version 1.2...

  • Page 20: Parametrization

    1 – 999 s 50 s Delay used to restore the pres- sure balance after the blowing time. Interval [min] 0 – 999 min 60 min Waiting time until the next meas- uring line cleaning cycle. Operating manual HE 5422 MR Version 1.2...
  • Page 21 Δp-Offset [mbar] -50 – 50.0 mbar 0 mbar The offset is added to the cur- rently measured differential pres- sure. Password 0 – 999 Protection against unauthorized parameter changes. Operating manual HE 5422 MR Version 1.2...
  • Page 22 The thresholds can be set arbitrarily. There is no logical validation. If the values of the lower threshold are parametrized as higher than the values of the upper thresholds, then the cleaning as well as the pressure display cannot function as expected. Operating manual HE 5422 MR Version 1.2...

  • Page 23: Offset For Zeroing

    When parametrizing multiple devices, it can be advantageous to use the Service-PC for the para- metrization. The USB/TTL adapter required for this purpose can be acquired from HESCH. The pa- rameters can be changed using the PC and the "EasyTool Controls" program. A configuration can be saved and a saved (backed-up) configuration can also be restored using this program.

  • Page 24: Reset Of Factory Settings

    With a password > 0, "cod" will flash in the display. Press the ENTER button. Change the code for the parameter protection using the UP / DOWNbuttons. Confirm using the ENTER button. The device has now been reset to factory settings. Operating manual HE 5422 MR Version 1.2...

  • Page 25: Operation

    1. As long as the start input (START) is closed, the cleaning relay is closed. 2. Using a trigger signal on the post cleaning input (POSTCLEAN), the cleaning relay is closed for the configured post cleaning time. Operating manual HE 5422 MR Version 1.2...
  • Page 26 The relay is closed when the Δp low alarm threshold is fallen below of. An activation delay can be parametrized. The alarm is only active, if the respective value has not fallen below of the post cleaning threshold within the time period of the activation delay. Operating manual HE 5422 MR Version 1.2...

  • Page 27: Testing Function

    "low alarm", there is a delay time of 5 minutes. The post cleaning threshold has to be reached before these 5 minutes have passed, as the low alarm will else be triggered. Operating manual HE 5422 MR Version 1.2...
  • Page 28 Cleaning start Lower threshold Cleaning stop Chamber delay time Low alarm Post cleaning start Time Post Cleaning Cleaning cleaning High alarm relay Low alarm relay Fig. 7.3: Temporal progression of the differential pressure measurement Operating manual HE 5422 MR Version 1.2...

  • Page 29: Measuring Hose Cleaning

    The process is repeated after a time interval or a number of Δp-Cycles. Isolation valves Blowing air Blowing Recovery Interval time time Fig. 7.5: Temporal progression of the measuring hose cleaning Operating manual HE 5422 MR Version 1.2...

  • Page 30: Error Messages

    The low alarm LED The differential pressure Adjust the configured  flashes. falls below the configured pulse and pause times. threshold for more than 5 minutes without reaching the post cleaning thresh- Operating manual HE 5422 MR Version 1.2...

  • Page 31: Declaration Of Conformity

    Chapter 9 Declaration of conformity Operating manual HE 5422 MR Version 1.2...

  • Page 32: Maintenance And Service

    Recycle metals and plastics. Electrical and electronic components should be collected separately and be disposed of accordingly. Properly dispose of printed circuit boards. Service HESCH Industrie-Elektronik GmbH Boschstraße 8 D-31535 Neustadt Germany Phone: + 49 (0) 5032 9535-90 Operating manual HE 5422 MR Version 1.2...

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