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Schaller Automation VISATRON VN2020 EX-H2 Operating Manual

Oil mist detector
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OPERATING MANUAL
®
VISATRON
VN2020
EX-H2
Version date:
05/11/2024
Version:
Version 1.1
Document No.:
Part number 183031
The original operating manual is written in German.
Any translations are based on the original operating manual.
Oil Mist Detector

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Summary of Contents for Schaller Automation VISATRON VN2020 EX-H2

  • Page 1 OPERATING MANUAL ® VISATRON Oil Mist Detector VN2020 EX-H2 Version date: 05/11/2024 Version: Version 1.1 Document No.: Part number 183031 The original operating manual is written in German. Any translations are based on the original operating manual.
  • Page 2 The reproduction, translation, microfilming and the storage and processing of this manual, including in part, is only allowed with the consent of Schaller Automation Industrielle Automationstechnik GmbH & Co. KG. Any infringement shall attract damages and may have consequences under criminal law.
  • Page 3 VERSION HISTORY AND CHANGE NOTES Version Change Date Author First version 24/01/2024 J. Wahl • Adjustment of product photos in chapters 3 - 9 due to new color design of the product. • Text additions and corrections carried out in chapter 6.5.3. 05/11/2024 J.
  • Page 4 OVERVIEW OF CONTENTS Table of contents Information about the operating manual ................8 Symbols in this operating manual ....................8 Validity of the operating manual ....................8 Use and purpose of the operating manual .................. 8 Document storage ........................9 Applicable documents and regulations ..................
  • Page 5 TABLE OF CONTENTS Product overview ........................29 ® Component overview for the VISATRON VN2020 EX-H2 ............29 4.1.1 Component overview with standard drainage concept ............. 29 ® Component overview for the VISATRON VN2020 EX-H2 oil mist detector ......30 Technical description and technical data .................. 31 4.3.1 Function of the VISATRON ®...
  • Page 6 OVERVIEW OF CONTENTS 6.4.1 Connection options for the oil mist detector (overview) ............63 6.4.2 Electrical installation of the terminal box for the VN2020 series ..........64 6.4.3 Electrical connection of the Remote Indicator II (optional) ............72 6.4.4 Closing the terminal box after completing the electrical installation .......... 74 6.4.5 Connecting housing earthing to the protective cover of the VN2020 series ......
  • Page 7 9.3.7 Replacing the filter control valve on the VN2020 EX-H2 ............142 9.3.8 Replacing the connecting hose on the VN2020 EX-H2 ............146 Repair by Schaller Automation ....................149 Taking out of service and disassembly ................... 149 Starting up again ........................149 Error diagnosis and troubleshooting ..................
  • Page 8 1 Information about the operating manual 1.1 Symbols in this operating manual Various types of notation and symbols are used in the text of this manual. They are used as follows: Numbered steps:  Required action  Result of the sequence of actions •...
  • Page 9 • select and order spare parts and accessories; and • find authorised service partners local to you  Hazard warnings, safety regulations and the information in this operating manual must be observed without exception.  You must read, understand and apply the operating manual in order to operate and work on the device properly and safely.
  • Page 10 INFORMATION ABOUT THE OPERATING MANUAL Certain maintenance work may only be carried out by authorised specialist personnel. The operator must define and provide rules for the area of responsibility, the authority and the supervision of personnel for such work in advance. 1.7 Operator's obligations ...
  • Page 11 IEC 60079-0 (2019) and IEC 60079-28 (2016) 1.9 Liability for defects The terms in the order confirmation from Schaller Automation Industrielle Automationstechnik GmbH & Co. KG or the terms agreed in the contract apply. Claims for personal injury and damage are excluded if they are due to one or more of the following causes: •...
  • Page 12 This document has been prepared to the best of our knowledge and belief. It matches the technical version of the device as delivered. Schaller Automation Industrielle Automationstechnik GmbH & Co. KG reserves the right to amend and revise this document, if necessary. The products supplied by Schaller Automation are production devices with long service life, developed and produced according to the current state of the art.
  • Page 13 DC voltage Torque (M) 1.14 Legal information about the product For all legal questions and activities arising in connection with the above product, please contact SCHALLER Automation in advance: SCHALLER Automation (Headquarters) Industrielle Automationstechnik GmbH & Co. KG Industriering 14...
  • Page 14 SAFETY INSTRUCTIONS 2 Safety instructions This operating manual contains safety instructions. 2.1 Safety devices and guards This manual contains instructions for your safety. The following basic safety instructions are instructions that always apply in order to operate the machine safely and keep the machine in a safe condition.
  • Page 15 SAFETY INSTRUCTIONS CAUTION Potential risk of minor injury.  Indicates a low-risk hazard that, if not avoided, may result in minor or moderate injury. NOTE Potential damage to the device or the surroundings.  Indicates a potential hazard, with the aim of preventing damage. Operating manual ...
  • Page 16 SAFETY INSTRUCTIONS 2.3 Information, warning and mandatory signs that are used The following symbols and signs according to DIN EN ISO 7010 and DIN 4844-2 are used in this operating manual: Symbol Explanation General warning sign Warning; electricity Warning; explosive atmosphere (Atex) Warning;...
  • Page 17 SAFETY INSTRUCTIONS Symbol Explanation Refer to operating manual/instructions Note: Important information! Note: A qualified electrician is required for installation! Note: Action required! 2.4 Basic safety instructions The basic safety instructions are instructions that always apply in order to operate the machine safely and keep the device in a safe condition.
  • Page 18 SAFETY INSTRUCTIONS DANGER Malfunction Operating the device with a malfunction creates a risk of death and may cause environmental damage and/or damage to the device.  The device must be taken out of operation immediately in the event of a malfunction.
  • Page 19 SAFETY INSTRUCTIONS DANGER Electrical hazards Electrical damage to the device from welding work on the engine as a result of overvoltage. ®  Before starting work, disconnect the VISATRON VN2020 EX-H2 from the power supply. Electrical damage to the device on when installing and removing the engine. ®...
  • Page 20 Section 3.1 Marking and type description  Only use tools suitable for potentially explosive atmospheres.  Note that modifications are not allowed without prior approval from SCHALLER AUTOMATION.  Make sure that damaged products are not installed or operated in the potentially explosive atmosphere.
  • Page 21 SAFETY INSTRUCTIONS NOTE Avoiding injuries from electrical charge There is a risk of serious injury, including death, from static charge. The following instructions must therefore be observed for the VN2020 EX-H2 installation kit:  To avoid electrostatic charge, all the installed piping and attachment parts must be earthed with a permanent and corrosion-free connection.
  • Page 22 Schaller logo, or type plate borders in “green”. • Name plate of the complete device: Additional EX-H2 symbol after the type designation, or type plate borders in “green”. 3.2 Manufacturer's details Schaller Automation Industrielle Automationstechnik GmbH & Co. KG Industriering 14 66440 Blieskastel/Saarland Germany...
  • Page 23 IDENTIFICATION 3.3.1 Name plate for the VISATRON ® VN2020 EX-H2 measuring head The name plate is attached to the outside of the measuring head as shown in the figure below. Name plate, VISATRON® VN2020 EX-H2 measuring head 1: VISATRON ® VN2020 EX-H2 measuring head 2: VISATRON ®...
  • Page 24 IDENTIFICATION 3.3.2 Name plate for the complete VISATRON ® VN2020 EX-H2 device The name plate is attached to the outside of the connection box as shown in the figure below. Name plate, VISATRON ® VN2020 EX-H2 connection box 1: Connection box 2: Name plate The following information is provided on the name plate: Name plate, VISATRON ®...
  • Page 25 IDENTIFICATION 3.4 Technical data Mechanical dimensions, VISATRON ® VN2020 EX-H2 Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 26 IDENTIFICATION 3.4.1 Mechanical interfaces (M)  Section 6.3.2 Installing the oil mist detector with pre-assembled bracket VN2020 EX-H2 oil mist detector Max. dimensions (L x W x H) approx. 539 x 298 x 171 mm Weight 12.4 kg External thread M16x1.5 Pipe connection, diameter size 10 External thread M30x2 Pipe connection, diameter size 22...
  • Page 27 The bus cable can be purchased from: • LAPP: Part No.: 2170204, or • Schaller Automation: Part No.: 230140 3.4.3 Pneumatic interfaces (P)  Section 6.5.3 Setting the negative pressure at the measuring head of the VN2020 EX-H2 VN2020 EX-H2 oil mist detector Compressed air supply to P1 Min.
  • Page 28 IDENTIFICATION 3.4.5 Type approval Type approval for closed areas Type approval for closed areas, designed for installation on combustion engines, environmental category D (DNV-GL), compliant with IACS UR M67; list of type approvals at www.schaller-automation.com Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031 ...
  • Page 29 PRODUCT OVERVIEW 4 Product overview ® 4.1 Component overview for the VISATRON VN2020 EX-H2 4.1.1 Component overview with standard drainage concept An oil mist detection system, referred to as an installation kit, usually consists of the following for delivery. The oil mist detection system is usually configured specifically for the engine. ®...
  • Page 30 PRODUCT OVERVIEW ® 4.2 Component overview for the VISATRON VN2020 EX-H2 oil mist detector Component overview for the VISATRON ® VN2020 EX-H2 oil mist detector 1: Base plate 2: Connection box 3: Measuring head (EX-H2) 4: Inspection cover (EX-H2) 5: Protective cover 6: Venturi air jet pump 7: Name plate of the oil mist detector (EX-H2) 8: Name plate of the measuring head (EX-H2)
  • Page 31 To avoid false alarms in the crankcase, such as from spray oil, the intake system uses intake funnels specially developed by Schaller Automation that can always be used, regardless of the direction of rotation of the engine. Where possible, Schaller Automation recommends installing as shown in Fig.
  • Page 32 ATEX or IECEx approval must be used in potentially explosive atmospheres. ® The VISATRON VN2020 EX-H2 oil mist detector from Schaller Automation, which is ® another device variant from the VISATRON VN2020 series, can be used in potentially explosive atmospheres for engines running both solely on methane or solely on hydrogen and on the two fuels in combination, in accordance with the ATEX or IECEx.
  • Page 33 PRODUCT OVERVIEW 4.3.4 Header pipe Schaller Automation uses tried-and-tested hydraulic components for its installation kits for intake and transporting atmosphere containing oil mist and gas. Only pipes (tubes) in accordance with DIN EN 10305-4 and fittings in accordance with EN ISO 8434-1 are used specifically for hydrogen-only engine operation.
  • Page 34 The fitting body allows for angular adjustment to accommodate the intake lines and forms the connection between the header pipes, intake lines and the crankcase. Schaller Automation offers engine wall connections in various versions and specifically to match the engine geometry.
  • Page 35 PRODUCT OVERVIEW The pipe siphon has the task of draining the precipitated oil in the header pipes before it completely closes or constricts the header pipes.  As already described in detail in Section 4.3.5 ( Section 4.3.5 Engine wall connection (EWC) precipitated oil can permanently block the header pipes and thereby and intake funnel), prevent the test medium from being taken in continuously.
  • Page 36 PRODUCT OVERVIEW Sensitivity setting Alarm-triggering oil mist concentration [mg/l] 0.55 (Default factory setting) 4.4 Intended use When used on large engines that have mandatory explosion protection classification, an oil mist detector with corresponding ATEX or IECEx approval must be used in potentially explosive atmospheres.
  • Page 37 PRODUCT OVERVIEW 4.6 Descriptions of the controls and indicators 4.6.1 Controls and indicators, VISATRON ® VN2020 EX-H2 Controls and indicators, VN2020 EX-H2 1: Confirmation button 2: System status 3: Display; Relative Oil Mist Concentration 4: Display, error code 4.6.1.1 Fault indicators, VISATRON ® VN2020 EX-H2 As per the figure above, system faults are displayed using the following indicators: 2: System status 4: Display, error code...
  • Page 38 ® When you receive the VISATRON VN2020 EX-H2 oil mist detector, check the whole delivery to ensure that it contains all the components. Schaller Automation provides a detailed parts list for you to use for this purpose. NOTE Dispose of the packaging materials in accordance with your local disposal regulations in the containers provided for this purpose.
  • Page 39 TRANSPORT AND STORAGE Storage temperature range -25°C to max. 50°C Relative humidity [RH] < 85% and avoiding condensation CAUTION Incorrect storage can damage the device.  Keep the storage period for the device to a minimum.  Keep the device in its original packaging. ...
  • Page 40 ASSEMBLY AND INSTALLATION 6 Assembly and installation WARNING  Failure to comply with the safety instructions may result in major damage to property or the environment and in serious injury or death.  Familiarise yourself with the basic safety instructions before starting assembly. ...
  • Page 41 ASSEMBLY AND INSTALLATION DANGER Electrical hazards  Before connecting the electrical supply cables to the connection boxes of the ® VISATRON VN2020 EX-H2, they must be disconnected from the power supply first. ®  Before starting work, disconnect the VISATRON VN2020 EX-H2 from the power supply or make sure that the housing is safely earthed.
  • Page 42 ASSEMBLY AND INSTALLATION  If the oil mist detector is operated in explosion-proof areas, the relevant safety  instructions must be observed. Section 2.4.1 Safety instructions for potentially explosive atmospheres 6.3 Assembling the system components CAUTION Safe and correct assembly of the device ...
  • Page 43 6.3.1 Class-compliant assembly and installation according to IACS Unified Requirement UR M10 The oil mist detector has been developed and approved by SCHALLER AUTOMATION in accordance with the requirements of the International Association of Classification Societies (IACS) IACS UR M10 (class-compliant assembly and installation) and M67 (sensitivity of the oil mist detector and determination of the oil mist concentration).
  • Page 44 ASSEMBLY AND INSTALLATION Start by attaching the bracket (2) to the engine wall (1) using suitable bolts (not included in the delivery) and torque as shown in the figure below, or to the mounting holes provided for this purpose according to the customer drawing. Then mount the oil mist detector (3) on the pre-assembled, engine-specific bracket in accordance with the supplied mounting kit (3) and customer drawing, as shown in the figure below.
  • Page 45 ASSEMBLY AND INSTALLATION 6.3.3 Installing the oil mist detector without bracket DANGER Accumulation of dangerous gas concentration at the oil mist detector, when mounted on dual-fuel or gas engines There is a risk of serious injury, including death, from hazardous accumulation of gas concentrations in the oil mist detector as a result of incorrect assembly or installation.
  • Page 46 ASSEMBLY AND INSTALLATION Installing VN2020 EX-H2 without bracket and with protective cover (rear view) ® 2: 4 pcs. ROMOB M8 St nuts (included in delivery) 1: VISATRON VN2020 EX-H2 6.3.4 Installing engine wall connection and intake funnel Engine wall connection (EWC) 1: Intake funnel 2: Hollow union bolt G3/4"...
  • Page 47 ASSEMBLY AND INSTALLATION Part number: 270354 (standard) Required tools:  Socket spanner, size 13 (4)  Open spanner, size 19 (5, top)  Open spanner, size 22 (5, bottom)  Open spanner, size 41 (2)  Open spanner, size 46 (3) DANGER Damage to the intake funnel after the installation process ...
  • Page 48 ASSEMBLY AND INSTALLATION Recommended install. for the engine wall connection (view from the crankshaft end) 1: Intake funnel 2: Engine wall 3: Splashing oil 4: Rotating crankshaft AF size 41 AF size 46 1: Engine wall 2: Screw-in thread, G3/4" or M27x1.5 3: Soft iron seal M27 4: Screw connection body 5: Threadlocker (Loctite 243)
  • Page 49 ASSEMBLY AND INSTALLATION 1: Engine wall 2: Screw fitting body (in final position) 1: Screw connection body 2: Installation kit documentation Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 50 ASSEMBLY AND INSTALLATION 1: Screw connection body 2: Intake funnel 1: Screw connection body 2: Intake funnel Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 51 ASSEMBLY AND INSTALLATION 1: Screw connection body 2: Sealing disc 2: Lock nut Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 52 ASSEMBLY AND INSTALLATION Installing engine wall connection (installation steps 1-9) 1: Intake hose/intake pipe 2: Cutting ring fitting (2-part) 3: Engine wall connection 6.3.5 Installing the pipe siphon assembly Pipe siphon assembly 1: Pipe siphon 2: Straight screw-in socket L22 3: Union nut 4: Protective cap 5: Intake line with union L10...
  • Page 53 ASSEMBLY AND INSTALLATION Part numbers:  150939 - Pipe siphon, complete Required tools:  Open spanner, size 19 (5)  Open spanner, size 32 (2)  Open spanner, size 36 (3)  Filling pump with lubrication oil for filling the pipe siphon (1) ...
  • Page 54 ASSEMBLY AND INSTALLATION 1: Engine wall 2: Straight screw-in socket L22 3: Pipe siphon 1: Straight screw-in socket L22 2: Union nut 3: Pipe siphon Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 55 ASSEMBLY AND INSTALLATION 1: Filling pump 2: Straight screw-in socket L10 3: Filling adapter NOTE Installing the filling pump with filling pipe on the pipe siphon  Start by filling the filling pump (1) with 70 ml of lubrication oil approved by the engine manufacturer/engine's own lubrication oil.
  • Page 56 ASSEMBLY AND INSTALLATION Installing pipe siphon assembly with commissioning (installation steps 1-5) 1: Intake line with union L10 2: Straight screw-in socket L10 3: Pipe siphon NOTE Removing the filling pump with filling pipe from the pipe siphon and installing the intake line ...
  • Page 57 ASSEMBLY AND INSTALLATION 6.3.6 Installing the pipes Schaller Automation uses tried-and-tested hydraulic components for its installation kits. Only pipes (tubes) in accordance with DIN EN 10305-4 and cutting ring fittings in accordance with EN ISO 8434-1 are used. Pipe with screw fitting, VN2020 series...
  • Page 58  To avoid blockages within the header pipe system, the pipes must always be installed free of U-bends and kinks. The approved installation drawing for the oil mist detector and installation kit from SCHALLER AUTOMATION must always be followed. Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2...
  • Page 59 ASSEMBLY AND INSTALLATION 6.3.7 Installing Remote Indicator II for remote monitoring (optional) ® The VISATRON VN2020 EX-H2 can be connected to the Remote Indicator II for remote monitoring to monitor the oil mist concentration and the system status from a safe location according to IACS UR M10.
  • Page 60 ASSEMBLY AND INSTALLATION NOTE Installing the Remote Indicator II  The Remote Indicator II is installed in the machine control room.  The installation space required for installation is based on the latest version of the DIN IEC 61554 standard. Description of the installation steps: Step 1: Produce the required installation space, according to the figure above Step 2: Select and install the appropriate front glass panel (vertical or horizontal) in...
  • Page 61 ASSEMBLY AND INSTALLATION 1: Previously prepared installation space 2: Remote Indicator II 1: Remote Indicator II 2: Retaining bracket (2 pcs.) Installing Remote Indicator II (installation steps 1-4) 1: Remote Indicator II 2: Fixing screws (2 pcs.) Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031 ...
  • Page 62 ASSEMBLY AND INSTALLATION 6.4 Electrical installation CAUTION Safe and correct electrical installation of the device  For electrical installation of the system components, read the operating manual and other documents accompanying the product with care and keep them in a suitable place for future reference. NOTE Personal protective equipment Operating the device or working on the device without protective equipment may result...
  • Page 63 ASSEMBLY AND INSTALLATION WARNING Failure to comply with the safety instructions may result in major damage to property or the environment and in serious injury or death.  Familiarise yourself with the basic safety instructions before starting electrical  installation. Section 2.4 Basic safety instructions 6.4.1 Connection options for the oil mist detector (overview) The oil mist detector is connected to the operator network and the safety interfaces via...
  • Page 64 ASSEMBLY AND INSTALLATION 6.4.2 Electrical installation of the terminal box for the VN2020 series All the electrical terminal connections are on the connection board of the terminal box, to which the bus and alarm supply lines and the power supply are connected, as shown in the figure below.
  • Page 65 ASSEMBLY AND INSTALLATION 1: Cover, VN2020 EX-H2 terminal box 2: Fixing screws 1: VN2020 EX-H2 terminal box 2: Cover, VN2020 EX-H2 terminal box Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 66 ASSEMBLY AND INSTALLATION 6.4.2.1 Configuration of the wire break resistors on the terminal box for VN2020 EX-H2 As shown in the figure below, the standard configuration of the wire break resistors as delivered is 33 k. The wire break resistors can be adapted to customer-specific requirements or swapped out.
  • Page 67 ASSEMBLY AND INSTALLATION Range of resistors VN2020 EX-H2 terminal box: Installing wire break resistors (steps 1-3) 1: Connection board, VN2020 EX-H2 terminal 2: Wire break resistors, VN2020 EX-H2 terminal box 6.4.2.2 Electrical installation of the VN2020 EX-H2 terminal box  Section 6.4.2 Electrical installation of the terminal box for the VN2020 series All the electrical terminal connections are on the connection board of the terminal box, to which the free cable ends of the relay and alarm supply lines that are already...
  • Page 68 ASSEMBLY AND INSTALLATION Terminal Terminal Connect to Note/action 24 V DC + Voltage report: 18-31, 2V Power supply 24 V DC - Spare S1 Reserve Spare S2 RS485 A/CAN H Remote indicator RS485 B/CAN L RS485 GND/CAN GND Alarm system/ Contacts COM1 and NO1 close in COM1 safety system...
  • Page 69 ASSEMBLY AND INSTALLATION Recommended electrical installation, terminal box for VN2020 EX-H2 1: VN2020 EX-H2 terminal box 2: Recommended electrical installation with cable ties AF size 27 AF size 24 Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 70 ASSEMBLY AND INSTALLATION Shielding 0.5 mm Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 71 ASSEMBLY AND INSTALLATION Shielding 0.5 mm AF size 24 6.7 Nm Establishing the power and relay supply (example installation; installation steps 1-4) Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 72 ASSEMBLY AND INSTALLATION 6.4.3 Electrical connection of the Remote Indicator II (optional)  Section 6.4.2 Electrical installation of the terminal box for the VN2020 series ® The VISATRON VN2020 EX-H2 system can be connected to the Remote Indicator II for remote monitoring to monitor the oil mist concentration and the system status from a safe location according to IACS UR M10.
  • Page 73 ASSEMBLY AND INSTALLATION The monitoring devices are connected via a RS485 bus line. If a Remote Indicator II is used, the connection only consists of a two-point connection. When the oil mist detector is delivered, the bus system is terminated with a switchable resistor as standard, which is always set to the “ON”...
  • Page 74 ASSEMBLY AND INSTALLATION 6.4.4 Closing the terminal box after completing the electrical installation After the electrical installation is complete, the terminal box on the VN2020 EX-H2 is fitted back on as shown in the figure below and closed. To do this, tighten the screws crosswise.
  • Page 75 ASSEMBLY AND INSTALLATION The earth connection between the oil mist detector (protective cover) and the engine is via an earth connection with a permanent corrosion-free screw connection, as per the figures below: Position and installation, earth connection and protective cover for VN2020 series Installing the earth connection, VN2020 series 1: Protective cover VN2020 (cut-out) 4: Earthing cable with ring eye DN6 (customer-...
  • Page 76 ASSEMBLY AND INSTALLATION 6.5 Starting up for the first time WARNING Risk of oil mist explosion Engine protection not guaranteed!  The oil mist detector may only be started up after all the components have been completely attached  To establish protection of the engine, start up the oil mist detector for the first time with the engine stopped.
  • Page 77 ASSEMBLY AND INSTALLATION 6.5.1 Checklist for starting up for the first time  If the assembly ( ) and the installation Section 6.3 Assembling the system components  ) of the oil mist detector have been completed Section 6.4 Electrical installation successfully, we recommend work through the following checklist before starting up for the first time: ...
  • Page 78 ASSEMBLY AND INSTALLATION 6.5.2 Connecting the power supply The power supply has been made available in advance by the operator and installed  according to Section 6.4.2. Section 6.4.2 Electrical installation of the terminal box 1. Switch on the power supply for the oil mist detector. ...
  • Page 79 ASSEMBLY AND INSTALLATION  The negative pressure to be set at the measuring head is 60 mmWC  5 mmWC.  Please comply with the safety instructions in Section 6.5 for the work described below.  Section 2.4 Basic safety instructions ...
  • Page 80 ASSEMBLY AND INSTALLATION 1: U-tube manometer (accessory) 2: Quick-release coupling 3: Sealing ring 1: Measuring head 2: Quick-release coupling 3: Sealing ring 4: Inspection cover 1: U-tube manometer 2: Bottle with low surface tension water Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031 ...
  • Page 81 ASSEMBLY AND INSTALLATION 1: U-tube manometer 2: Quick-release coupling Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 82 ASSEMBLY AND INSTALLATION 60 mmWC 5 mmWC 60 mmWC 5 mmWC Setting the negative pressure on the VN2020 EX-H2 measuring head (steps 1-6) 1: Pressure regulator unit 2: Adjusting cap 3: U-tube manometer Once the preparatory work has been successfully completed in accordance with the above installation steps 1-5, the other settings are changed on device in accordance with Figure 42 (installation step 6): 1.
  • Page 83 ASSEMBLY AND INSTALLATION  Setting the allowed water column (right side) on the U-tube  ] to 60 mmWC  5 mmWC, according to the figure manometer [ above.    Push the blue adjusting cap [ ] on the pressure regulator [ ] down again to lock it.
  • Page 84 ASSEMBLY AND INSTALLATION 6.5.4 Setting the sensitivity on the VN2020 EX-H2 oil mist detector The oil mist detector determines the oil mist concentration by optical measurement. The calculated value is the opacity in percent. 100% opacity means that no more light penetrates through the oil mist sample because of maximum turbidity.
  • Page 85 ASSEMBLY AND INSTALLATION Setting the sensitivity 1: “Sensitivity” display 2: “Update VN2020 Conf” button 1. Changing the sensitivity   Move the position arrow under “Sensitivity” [ ] to the position you want. In the example above, the sensitivity has been changed to level 4. 2.
  • Page 86 ASSEMBLY AND INSTALLATION IMPORTANT INFORMATION Using smoke tubes correctly  The smoke tubes approved for use have an expiry date and must therefore be used at the latest within 3 months of delivery.  Smoke tubes that have already reached their expiry date must be properly ...
  • Page 87 The VN2020 EX-H2 oil mist detector can alternatively be tested using a smoke mist test. As the test equipment is not normally available on ships, SCHALLER AUTOMATION recommends that this test is only carried out during factory testing with the SCHALLER smoke generator (see figure below).
  • Page 88 ASSEMBLY AND INSTALLATION Schaller smoke generator 1: Smoke collection head 2: Collection container 3: Flexible hose Once the steps in Sections 6.5.1 to 6.5.4 have been successfully completed or the maintenance covers on the crankcase have been opened, you can start the function test.
  • Page 89 ASSEMBLY AND INSTALLATION 1. Each suction point is checked separately. The resulting smoke should now be drawn out directly via the intake funnels. 2. After a few seconds (approx. 10s), the alarm is shown on the measuring head display, as in the figure above.
  • Page 90 MANUFACTURER SETTINGS 7 Manufacturer settings ® 7.1 Parameter settings, VISATRON VN2020EX-H2 ® The VISATRON VN2020 EX-H2 oil mist detector has two available alarm thresholds. The main alarm threshold can be change using the software and the interface (USB port) on the measuring head, as shown in the figure below. The pre-alarm can also be adjusted.
  • Page 91 MANUFACTURER SETTINGS DANGER  You may only adjust the parameters of the measuring head with the engine switched off. The power and compressed air supply to the oil mist detector must also be switched off first. ®  Before starting to adjust the parameters, the housing of the VISATRON ...
  • Page 92 MANUFACTURER SETTINGS Removing the VN2020 EX-H2 measuring head (installation steps 1-2) 1: VN2020 EX-H2 measuring head The laptop and the measuring head are connected as shown in the figure below: VISATRON VN2020 /VN2020 EX connection unit USB port Service laptop/netbook Establ.
  • Page 93 MANUFACTURER SETTINGS The parameters are entered as per the parameter list below: Parameter set Input values 1 Input values 2 Number of suction 5 to 10 points (compartments) Pre-alarm threshold 20% to 100% Oil mist alarm Opacity Oil mist concentration threshold alarm threshold 0.55 mg/l...
  • Page 94 MANUFACTURER SETTINGS Finally, re-establish all electrical and pneumatic connections to the measuring head.  ® Adjusting the parameters of the VISATRON VN2020 measuring head has been completed successfully! Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 95 OPERATION AND USE 8 Operation and use This section describes how to operate the product. This section covers all the operating modes available on the product, as well as how to restart the product after a system failure, and also warns of hazardous situations that may arise during operation. WARNING Risk of oil mist explosion Failure to comply with the safety instructions may result in major damage to property...
  • Page 96 OPERATION AND USE  The oil mist detector is functioning and ready for operation when the checklist has been completed successfully.  For further information, please see Section 10 of this manual. Section 10 Error diagnosis and troubleshooting 8.2 Operation under correct conditions The operating temperature for the VN2020 EX- H2 is: ...
  • Page 97 OPERATION AND USE ® The VISATRON VN2020 EX-H2 oil mist detector is ready for operation, indicated by   “System ready” LED. [ green ] The LED around the [ ] button is switched off in this mode of operation. ...
  • Page 98 OPERATION AND USE 8.6 Checking the supply pressure, sensor OMC and sensitivity To carry out these checks, please see the following sections in this manual:  Section 6.5.3 Setting the negative pressure at the measuring head of the VN2020 EX-H2 ...
  • Page 99 OPERATION AND USE  In the event of an oil mist alarm, do not approach the engine again until the alarm threshold on the oil mist detector or the remote indicator has fallen again.  The manufacturer recommends that only approach the engine again when the alarm threshold has dropped to 0% relative oil mist concentration.
  • Page 100 OPERATION AND USE 8.9 Confirming an oil mist alarm DANGER Risk of death There is a risk of serious injury, including death, due to explosion in the crankcase as a result of incorrect installation.  In the event of an oil mist alarm, do not approach the engine again until the alarm threshold has dropped to at least <...
  • Page 101 MAINTENANCE AND REPAIR 9 Maintenance and repair WARNING Warning – risk of oil mist explosion during maintenance work  Safe operation is conditional on no explosive atmosphere escaping into the engine room. An explosive atmosphere that escapes can cause a risk of explosion.
  • Page 102 WARNING Risk of serious injury or death from oil mist explosion during maintenance work  Only use original spare parts from Schaller Automation for maintenance and repair work! All the maintenance work is described in the following sections. 9.1.1 Maintenance cycles for reliable operation ®...
  • Page 103 MAINTENANCE AND REPAIR Description Interval every six months or after every 4,000 operating hours (whichever occurs first) Hours Or months Check the supply pressure setting at the measuring head: U-tube ▪ Negative pressure manometer < 55 mmWC (5.5 mbar) (270532) ➔...
  • Page 104 MAINTENANCE AND REPAIR Check the bellows and spring systems between the base plate and the measuring head for May need a damage torch ➔ Damaged parts must be replaced immediately Complete overhaul of the oil Service kit for mist detector the VN2020 (155004) Key to maintenance measures:...
  • Page 105 Cleaning and care of system components For the cleaning and maintenance of system components of the VN2020 EX-H2 oil mist detector, the following optional products are offered by Schaller Automation as accessories and can be ordered directly under the listed part numbers: ...
  • Page 106 MAINTENANCE AND REPAIR WARNING Warning – risk of oil mist explosion during maintenance work  Safe operation is conditional on no explosive atmosphere escaping into the engine room. An explosive atmosphere that escapes can cause a risk of explosion.  Only carry out maintenance and repair work when the engine is stopped.
  • Page 107 MAINTENANCE AND REPAIR 1: VN2020 EX-H2 measuring head 2: Seal (old -> dispose of!) 1: Schaller Cleaning Kit (151482) 2: Cleaning fluid 3: Cleaning buds from the cleaning kit 4: Diode glass, left Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031 ...
  • Page 108 MAINTENANCE AND REPAIR NOTE Cleaning and care using the cleaning kit  The cleaning buds from the cleaning kit are for single use only!  The diode glass surfaces are cleaned with circular movements, as shown in the figure above. ...
  • Page 109 MAINTENANCE AND REPAIR 1: Seal (new) 2: 2x centring pins 3: Measuring head   Positioning of the new seal [ ] for the inspection cover over the two  dowel pins [ ] completed successfully. Cleaning the light path, VN2020 EX-H2 (steps 1-8) 1: Inspection cover 2: 4x neck collar bolts (tighten crosswise;...
  • Page 110 4,000 operating hours at the latest. The air filter element (366717) is part of the Schaller maintenance kit (155003) and can also be ordered separately from Schaller Automation if required.
  • Page 111 MAINTENANCE AND REPAIR Replacing the air filter element on the pressure regulator unit 1: Pressure regulator unit 2: Air filter element 3: Plastic disc The air filter element is replaced according to the following steps: 1: Pressure regulator unit 2: Filter cover 3: Locking lever ...
  • Page 112 MAINTENANCE AND REPAIR 2: Air filter element – 1: Plastic disc ->   Note on steps 3 and 4: Start by unscrewing the plastic disc [ ] and then pull   down the plastic disc [ ] with the air filter element [ ...
  • Page 113 MAINTENANCE AND REPAIR Tighten 1 hand-tight 1: Plastic disc 2: Air filter element (new)    Note on step 6: Reinstall the plastic disc [ ] with the new air filter element [ into the pressure regulator unit.  ...
  • Page 114 MAINTENANCE AND REPAIR   Note on steps 8 and 9: Start by pushing the filter cover [ ] into the pressure   regulator unit [ ] and then turn it to the right until the blue locking lever [ engages automatically.
  • Page 115 MAINTENANCE AND REPAIR 9.1.4 Function test of the oil mist detector using smoke tube (4,000 hours) To ensure reliable operation of the VN2020 EX-H2 oil mist detector, a function test with a smoke tube mist test must be carried out every six months or after 4,000 operating hours at the latest.
  • Page 116 MAINTENANCE AND REPAIR 1: VN2020 EX-H2 measuring head 2: Inspection cover 3: Screw plug 4: Allen key, size 6/torque spanner for 15 Nm 1: VN2020 EX-H2 measuring head 2: Inspection cover 3: Push-in fitting with flexible hose   ] is the same as 4 and 5 in Figure 62. ...
  • Page 117 MAINTENANCE AND REPAIR 1: Hand pump 2: Smoke tube 3: Adapter 4: Flexible hose with push-in fitting    Assembly of the remaining hose parts [   For the function test: Press [ ] at least 3 times LED flashing LEDs come on...
  • Page 118 8,000 operating hours at the latest. The seal (356950) is part of the Schaller maintenance kit (155006/155004) and can also be ordered separately from Schaller Automation if required. NOTE Maintenance work on the oil mist detector ...
  • Page 119 MAINTENANCE AND REPAIR The seal is replaced according to the following steps: 1: Close the shutoff lever valve 1: Compressed air hose “venturi injector” AF size 36 1: Union nut 2: screw-in socket Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031 ...
  • Page 120 MAINTENANCE AND REPAIR 1: Connection box, VN2020 EX-H2 2: Connection box fixing screws NOTE Risk of impact and crushing   Hold the connection box [ ] by hand while loosening the fixing screws. 1: Connection box, VN2020 EX-H2 Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031 ...
  • Page 121 MAINTENANCE AND REPAIR 1: (Old) connection box seal -> dispose of this 1: Connection box sealing surface 1: (New) connection box seal 2: 4x fixing screws Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 122 MAINTENANCE AND REPAIR   Position the new seal [ ] for the connection box using at least 2 existing  hexagon head screws [ ] with lock washer, which were previously removed in installation step 4.   Cleaning of the sealing surface [ ] for the new seal of the connection box completed successfully.
  • Page 123 MAINTENANCE AND REPAIR AF size 36 1: Union nut 2: screw-in socket   Tighten the union nut [ ] of the pipe or hose connection by hand until you can feel that it is in contact with the screw fitting, cutting ring and union nut. ...
  • Page 124 MAINTENANCE AND REPAIR Replacing the seal on the connection box of the VN2020 EX-H2 (steps 1-13) 1: Open the shutoff lever valve  The device is ready for operation! 9.2 Inspection of the oil mist detector (16,000 hours or after 24 months) To ensure that the device is in proper working condition, defined maintenance and inspection work must be carried out by authorised and instructed specialist personnel.
  • Page 125 VN2020 EX-H2 oil mist detector. In the event of a defect or continuous malfunction, the measuring head has to be replaced. The measuring head is a spare part and can be ordered separately from Schaller Automation as follows: • VN2020 EX-H2 measuring head: Part number...
  • Page 126 MAINTENANCE AND REPAIR Measuring head, VN2020 EX-H2 oil mist detector 1: VN2020 EX-H2 measuring head The measuring head is replaced according to the following steps: DANGER  The measuring head may only be replaced with the engine switched off.  The power and compressed air supply must be switched off before starting maintenance and repair work.
  • Page 127 MAINTENANCE AND REPAIR 1: Measuring head compressed air hose  Pull the compressed air hose off on the right side of the VN2020 EX-H2 measuring head and push to one side 1: VN2020 EX-H2 measuring head 2: Measuring head plug connection ...
  • Page 128  Hold the measuring head [ ] by hand while loosening the fixing screws.  Remove the measuring head and send it back to Schaller Automation. Remove the flat seal and dispose of the seal in accordance with local disposal regulations.
  • Page 129 MAINTENANCE AND REPAIR 1: (New) VN2020 EX-H2 measuring head 2: (New) measuring head seal 3: Neck collar bolts  Place the new seal (supplied) on the back of the new measuring head. Secure the seal by inserting two of the eight pre-assembled screws through the four outer holes.
  • Page 130 MAINTENANCE AND REPAIR As soon as the measuring head has been successfully replaced, fasten the neck collar  bolts [ ] as shown in the figure above, observing the fastening sequence from and the defined tightening torque! 1: Measuring head compressed air hose 1: VN2020 EX-H2 measuring head 2: Measuring head plug connection NOTE...
  • Page 131 Replacing the VN2020 EX-H2 measuring head In the event of a defect, the fuse on the measuring head has to be replaced. The fuse is a spare part and can be ordered separately from Schaller Automation as follows: VN2020 EX-H2 measuring head: Part number 290xxx ...
  • Page 132 MAINTENANCE AND REPAIR 1: VN2020 EX-H2 measuring head 2: Fuse 5x20 medium time-lag 2A (old/defective) Range of fuses 1: Fuse 5x20 medium time-lag 2A (new) Replacing the fuse on the VN2020 EX-H2 measuring head (steps 1-3) 1: VN2020 EX-H2 measuring head 2: Fuse 5x20 medium time-lag 2A (new) Operating manual ...
  • Page 133 Comply with the safety instructions for this in Section 9.1.2 Section 9.1.2 Cleaning the light path on the measuring head (4,000 hours) The seal is a spare part and can be ordered separately from Schaller Automation as follows: VN2020 EX-H2 measuring head: Part number 290xxx ...
  • Page 134 The screw plug has to be replaced if there is clearly visible wear on the fitted O-ring [ Inspection cover screw plug 1: Screw plug 2: O-ring The screw plug is a spare part and can be ordered separately from Schaller Automation as follows: VN2020 EX-H2 measuring head: Part number 290xxx ...
  • Page 135 MAINTENANCE AND REPAIR 1: Screw plug (new) Replacing the screw plug on the VN2020 EX-H2 measuring head (steps 1-3) 1: Inspection cover 2: Screw plug (new) 3: Allen key, size 6/ (Torque spanner for up to 15 Nm)   Finally, screw the screw plug [ ] into the inspection cover to a torque of 15 Nm.
  • Page 136 9.3.6 Replacing the terminal box on the VN2020 EX-H2 If the terminal box has a defect of malfunction, it has to be replaced. The terminal box is a spare part and can be ordered separately from Schaller Automation as follows:  Terminal box: 290043...
  • Page 137 MAINTENANCE AND REPAIR DANGER  The terminal box may only be replaced with the engine switched off.  The power and compressed air supply must be switched off before starting maintenance and repair work. ®  Before starting work, the housing of the VISATRON VN2020 EX-H2 oil mist detector must be earthed.
  • Page 138 MAINTENANCE AND REPAIR 1: VN2020 EX-H2 terminal box 2: Terminal box cover AF size 27 AF size 24 Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 139  Loosen the neck collar bolts (4 pcs.) [   Remove the (old) terminal box [  Then dispose of the (old) terminal box or return it to Schaller Automation Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 140 MAINTENANCE AND REPAIR  Now take the new terminal box and remove the cover as described in step 2 in  this section and store it for use later on. Section 9.3.6 Replacing the terminal box on the VN2020 EX-H2 ...
  • Page 141 MAINTENANCE AND REPAIR AF size 27 For 4) 6.7 Nm After the electrical installation, the terminal box on the VN2020 EX-H2 is closed again, as shown in the figure below. Tighten the screws crosswise. Then re-establish the electrical connection between the terminal box and the measuring head. For 2) 2.5 Nm Replacing the VN2020 EX-H2 terminal box (installation steps 1-8)
  • Page 142 If the filter control valve (the pressure regulator unit) has a defect of malfunction, it has to be replaced. The filter control valve is a spare part and can be ordered separately from Schaller Automation as follows:  Filter control valve: 273456/273461...
  • Page 143 MAINTENANCE AND REPAIR Filter control valve, VN2020 EX-H2 oil mist detector 1: VN2020 EX-H2 measuring head 2: Filter control valve (the pressure regulator unit) The filter control valve is replaced according to the following steps: 1: Close the shutoff lever valve Operating manual ...
  • Page 144 MAINTENANCE AND REPAIR AF size 10 AF size 10 1: 4x fixing screws, full set (old) 2: Filter control valve (old) AF size 10 AF size 10 7.4 Nm 1: 4x fixing screws, full set (new) 2: Filter control valve (new) Operating manual ...
  • Page 145 MAINTENANCE AND REPAIR 1: Adjusting cap NOTE Checking the supply pressure on the oil mist detector  After completing installation step 7, the supply pressure on the VN2020 EX-H2 measuring head has to be checked again and readjusted if necessary. ...
  • Page 146 If the connecting hose that connects the venturi injector to the measuring head has a defect of malfunction, it has to be replaced. The connecting hose is a spare part and can be ordered separately from Schaller Automation as follows:  Connecting hose: 290025...
  • Page 147 MAINTENANCE AND REPAIR  ESD safety shoes according to ESD standard DIN EN 61340-5-1 Connecting hose, VN2020 EX-H2 oil mist detector The connecting hose, is replaced according to the following steps: 1: Close the shutoff lever valve Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031 ...
  • Page 148 MAINTENANCE AND REPAIR 1: Connecting hose (old)   Pull off the connecting hose to be replaced [ ] on the right side of the measuring head and on the venturi injector.  Insert the new connecting hose back into the two push-in fittings as far as it will go, as per the figure below.
  • Page 149 9.4 Repair by Schaller Automation If your oil mist detection system is defective or malfunctions, please contact Schaller Automation or an authorised service partner immediately.  See Section 12 ( in this manual for suitable partners or go to Section 12 Contact) https://schaller-automation.com/en/partners/.
  • Page 150 ERROR DIAGNOSIS AND TROUBLESHOOTING 10 Error diagnosis and troubleshooting WARNING Risk of oil mist explosion Failure to comply with the safety instructions may result in major damage to property or the environment and in serious injury or death.  Start by familiarising yourself with the basic safety instructions for working with ...
  • Page 151 ERROR DIAGNOSIS AND TROUBLESHOOTING VN2020 EX-H2 measuring head: “System or device error” status indicator 1: “System ready” display 2: “System failure” display 3: “Error code” display 10.1.1 Defect in the measuring head WARNING Replacing a defective measuring head Failure to comply with the safety instructions may result in major damage to property or the environment and in serious injury or death.
  • Page 152 The displayed errors can be corrected by the customer or alternatively by an authorised Schaller service partner. In this case, contact service at Schaller Automation Industrielle Automationstechnik GmbH & Co KG. ...
  • Page 153 ERROR DIAGNOSIS AND TROUBLESHOOTING “System Error code/ Error description Ready for failure” LED description operation All LEDs are off/no output None Electronics temperature too high (> 85°C) Electronics temperature too (< 0°C) Battery voltage too low Supply pressure too low Optical sensor very dirty–...
  • Page 154 ERROR DIAGNOSIS AND TROUBLESHOOTING Error code/ Type of fault/Possible Solution description causes Device is not ready 06/supply 1. Check the power supply for operation voltage not 2. Replace measuring head (Section 9.3.1) within allowed range Optional: Contact service partner (Section Device is not ready 07/internal 1.
  • Page 155  This product must not be disposed of as residential waste. It is therefore marked with the symbol on the left.  Schaller Automation takes back this product free of charge. Information about this is available from the national sales organisations and Schaller Automation.
  • Page 156 United States of America Phone: +1 954 794 1950 Mobile: +1 561 289 1495 Fax: +1 954 794 1951 Email: info@schalleramerica.com Schaller Automation Pte Ltd. 114 Lavender Street #09-93 CT Hub 2 Singapore 338729 Phone: +65 6643 5151 Mobile: +65 9788 7550...
  • Page 157 Using other parts may exclude liability for the consequences.  Only use original spare parts from Schaller Automation! 13.1 Spare parts list VN2020 EX-H2 Overview of the positions of spare parts for the VISATRON ® VN2020 EX-H2...
  • Page 158 (*): Please complete the form to provide your device data when requesting a measuring head spare part and send it to Schaller Automation or an authorised service partner. See the Appendix for contact details. Visit our homepage and find your nearest service partner.
  • Page 159 13.2 Maintenance kit for VN2020 series (4,000 / 8,000 / 12,000 hours) The maintenance kit is also used for the VN2020 EX-H2 and can be ordered separately from Schaller Automation as follows:  Maintenance kit: 155006 Maintenance kit VN2020 / VN2020 EX / VN2020 EX-H2...
  • Page 160 13.3 Cleaning kit for the VN2020 series The cleaning kit is also used for the VN2020 EX-H2 and can be ordered separately from Schaller Automation as follows:  Cleaning kit: 151482 Cleaning kit for VN2020 / VN2020 EX / VN2020 EX-H2...
  • Page 161 SPARE PARTS FOR VN2020 EX-H2 13.4 Service kit for VN2020 series (16,000 hours / 24 months) The service kit is also used for the VN2020 EX-H2 and can be ordered separately from Schaller Automation as follows:  Service kit: 155004 NOTE Maintenance work on the oil mist detector ...
  • Page 162 SPARE PARTS FOR VN2020 EX-H2 Item Part Number Description Kit No. 356951 Seal for mounting plate 155004 356950 Seal for connection box 155004 356952 Seal for inspection cover 155004 366604 Screw plug 155004 200211 Top spring system 155004 200212 Bottom spring system 155004 2001310 Bellows...
  • Page 163 Using unapproved accessories may affect the safety of the installation. Original accessories are necessary for the device to operate correctly and are designed for your safety. Using other parts may exclude liability for the consequences.  Only use original accessories from Schaller Automation! Part Description List Price...
  • Page 164 ACCESSORIES FOR VN2020 EX-H2 Part Description List Number Price ® Smoke test box for VISATRON devices The smoke test box contains all the tools and parts required to maintain and check the oil mist detector. 151780 request ® U-tube manometer for VISATRON devices U-tube manometer, including accessories and list of ®...
  • Page 165 ACCESSORIES FOR VN2020 EX-H2 Part Description List Number Price ® Differential pressure gauge for VISATRON devices Differential pressure gauge including accessories, for measuring differential pressures from 0 to 100 hPa on ® VISATRON devices. 151800 request ® Smoke fluid for VISATRON devices Smoke fluid for the Schaller smoke generator, for performing smoke tests...
  • Page 166 LIST OF FIGURES 15 List of figures Name plate, VISATRON® VN2020 EX-H2 measuring head ........... 23 Name plate, VISATRON ® VN2020 EX-H2 measuring head..........23 ® Name plate, VISATRON VN2020 EX-H2 connection box ..........24 ® Name plate, VISATRON VN2020 EX-H2 connection box ..........24 ®...
  • Page 167 LIST OF FIGURES Removing the VN2020 EX-H2 measuring head (installation steps 1-2) ......92 Establ. the USB connection between the VN2020 measuring head & service PC ..92 Installing the VN2020 EX-H2 measuring head ..............93 VN2020 EX-H2 measuring head: Display in normal operation ........96 VN2020 EX-H2 measuring head: LED check (light test)..........
  • Page 168 LIST OF TABLES 16 List of tables Table 1: Version history and change notes ..................3 Table 2: Variables and units of measurement that are used ............13 Table 3: Information, warning and mandatory signs ..............17 Table 4: Mechanical interfaces ...................... 26 Table 5: Electrical interfaces ......................
  • Page 169 GLOSSARY 17 Glossary Term Description VN2020/VN2020 Non Ex/Ex oil mist detector type designation, designed to EX/VN2020 EX-H2 protect large engines (gas, diesel and dual fuel) Provides the functionality of the oil mist detection system and Measuring head is used to adjust parameters of measured variables Used to draw in the oil mist atmosphere from the crankcase in Engine wall connection a defined manner...
  • Page 170 We hereby declare that the design of the machine described below and the version we have placed on the market fulfils the essential health and safety requirements of EC Machinery Directive 2006/42/EC. Manufacturer: SCHALLER AUTOMATION Industrielle Automationstechnik GmbH & Co. KG Industriering 14 D-66440 Blieskastel, Germany...
  • Page 171 Why is the oil mist detector faulty? If your oil mist detector is defective or malfunctions, please contact Schaller Automation or one of our authorised service partners immediately. Please fill in the following form in full and send it to us immediately together with the defective part.
  • Page 172 ATTACHMENTS 1. Condition of the oil mist detector: ☐ ☐ Oil mist detector mechanically damaged? : Not functioning when operated? : 2. Checked whether suction on the oil mist ☐ ☐ detector is working properly? ☐ ☐ 3. Is the condition of the intake line OK? ☐...
  • Page 173 ATTACHMENTS  Section 10.2 Error diagnosis and troubleshooting See also Section 10.2 -> Codes 14 and 33 If yes, please check as follows: ☐ ☐ Is there no compressed air available? If there is, is there enough/too much compressed air available? ☐...
  • Page 174 NOTES 20 Notes Notes Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...
  • Page 175 INDEX 21 Index Accessories ........163 Notation and symbols ......8 Adjusting the parameters ......91 Operating manual ........8 Alarm ..........99, 117 Operating modes ........32 Alarm thresholds ........90 Operating the product ......95 Assembly ..........40 Operation ..........95 Checklist ..........77 Parameter list ........
  • Page 176 CUSTOMER INFORMATION 22 Customer information Operating manual  VISATRON® Oil Mist Detector  VN2020 EX-H2 Part number 183031  Version 1.1...