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Signal light Gas input Buzzer USB port Display Function keys Jog dial ON/OFF key Connection for Connector power supply VARIOTEC 460 Tracergas device overview Fig. 1: Bar graph Selected Measured value application Alarm Battery Unit capacity Gas type Current assignment of function keys F1 –...
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Display symbols General Menu Fault Perform device inspection Cancel Tab (jump to next input field) Buzzer off Set zero point Stop measurement Information Open stored comments Clear Open stored inspectors Battery capacity Applications Inspection above ground House Measuring in bar holes Gas measuring...
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Information about this document The symbols used in the document mean the following: NOTICE! Indicates a hazardous situation for the product, which could result in functional disturbance, damage or destruction. CAUTION! Indicates a hazardous situation for users, which could present health risks or result in bodily injury.
Contents Page General ..................1 Warranty ...................1 Purpose ..................2 Intended use ................3 General safety information ............4 Allocation of tasks to applications ..........5 Tracer gas method ..............6 Features ...................7 Visual and audible signals ............7 Sensors ..................8 Explosion protection ..............9 Operation ................10 General information on operation ..........10 3.1.1 Keys and jog dial ..............10 3.1.2...
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Contents Page Power supply .................32 Suitable disposable/rechargeable battery types .....32 Operation with rechargeable batteries ........33 4.2.1 Charging ................33 4.2.2 Rechargeable battery maintenance ........34 Battery alarm ................35 Replacing disposable/rechargeable batteries ......35 Maintenance ................36 Device inspection ..............36 5.1.1 General information on the device inspection ......36 5.1.1.1 Scope ................36 5.1.1.2...
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Contents Page Alarms ..................51 7.2.1 Features ................51 7.2.2 Alarm thresholds (factory settings) ........52 Limit values for the device inspection ........52 Memory capacity ..............53 Sensors ...................54 7.5.1 Gas-sensitive semiconductor (SC) for H ......54 7.5.2 Thermal conductivity sensor (TC) for H ......54 Technical information ..............55 7.6.1 Sensitivity of the gas-sensitive semiconductor (SC) ....55...
● Repairs and maintenance must only be carried out by special- ist technicians or other suitably trained personnel. Only spare parts approved by Hermann Sewerin GmbH may be used when performing repairs. ● Use only suitable battery types, otherwise the device will not be explosion-proof.
All tasks that can be performed with the device are assigned to applications. For more detailed information please see Section 1.5 on page 5. WARNING! The VARIOTEC 460 Tracergas is not a gas warning in- strument. ● Do not use the device to warn against dangerous gas concentrations.
1 General Intended use This device is intended for professional residential and commercial use, in small firms and commercial operations and in industry. The appropriate specialist knowledge is required to operate the device. The device is intended for measuring hydrogen H It should not be used for: ●...
5%, the device must be used in carrying bag TG8. ● SEWERIN recommends always using the device in carrying bag TG8 in enclosed spaces. ● Do not use this device in oxygen-enriched atmospheres, oth- erwise it will not be explosion-proof.
1 General Allocation of tasks to applications The device is used in measuring mode in four applications: ● Inspection above ground ● Measuring in bar holes ● House ● Gas measuring Owing to the high sensitivity in the ppm range, the Inspection above ground and House applications are particularly suitable for leak detection but less so for reproducible measurements.
(e.g. screed, concrete). This penetrating power is used to locate gas leaks in closed systems with a gas measuring device such as the VARIOTEC 460 Tracergas. Such closed systems may either already exist (e.g. filling stations) or may have to be created. In the latter case the pipe sections to be inspected are closed off with blind flanges, for example.
2 Features Features Visual and audible signals The device features two alarms: ● Signal light on top of device (visual signal) ● Buzzer on side of device (audible signal) If this symbol appears on the display, the audible signal can be switched off. When an audible signal has been switched off it cannot be switched back on while the concentration level remains above the alarm threshold.
2 Features Dynamic or constant signal for ALPPM For the ALPPM alarm there are two options for cycling the audi- ble and visual signals: ● dynamic (dynamic signal) ● constant With the dynamic signal option the cycle speed is dependent on the measured gas concentration.
2 Features Explosion protection The device is assigned to the following explosion-proof groups: Explosion-proof For the following at- When using group mospheres II2G Ex d e ib IIB T4 Gb ● Methane CH Device with- ● Propane C out carrying ●...
3 Operation Operation General information on operation 3.1.1 Keys and jog dial The ON/OFF key is the only control on the device that does not change its function. When switched on, the device is operated using the jog dial and function keys to navigate the display.
A visual and audible signal confirms that the device has been switched on. The display and the pump come on. The start screen appears on the display. Display: – Device type: VARIOTEC 460 Tracergas – User: Frank Smith City Council Leakage Delivery –...
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3 Operation Then the opening screen for the selected application appears (see Section 3.3.4 on page 29). Display: – Gas type: H – Application as symbol (top left) and text: Inspection above ground – Measuring range: 0.0 ppm – 5 % vol. –...
3 Operation 3.1.4 Selecting/switching applications Note: You may only switch applications when the device is drawing in fresh air. The current application is indicated by the symbol at the top left of the display. The symbol at the bottom right shows the next ap- plication that can be selected via function key F3.
3 Operation 3.1.5 Differences between measuring mode and settings mode The device is operated in two modes: ● Measuring mode (see Section 3.2 on page 14) Measurements are taken in measuring mode. All functions needed to take readings can be accessed from one menu. ●...
3 Operation 3.2.1 Accessing the menu (measuring mode menu structure) In measuring mode F1 can be used to access the Menu. Zero point Inspection above ground Measuring in bar holes House Gas measuring Settings Start measurement Protocol Device inspection Device information Exit Menu with submenus (menu items) Fig.
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3 Operation Setting zero point (manual zero point setting) 1. Press Menu. 2. Select Zero point from the menu. The values are automatically adjusted. The device returns to measuring mode. In the Inspection above ground and House applications the Setting zero point function can also be opened by means of the corresponding symbol.
3 Operation 3.2.3 Inspection above ground Area of use – Measuring very low gas concentrations in poorly accessible gas pipes (underground or laid in floors) – Measurement above ground, above the floor or above possi- ble leakage points Symbol Unit –...
3 Operation 3.2.4 Measuring in bar holes Area of use – Measuring the gas concentration in the ground for: – Determining gas dispersion (detection limit) – Locating a probable gas escape (repair point) – Preventing possible dangers Symbol Unit – % vol. Measuring range Thermal 0.0 to 100 % vol.
3 Operation 3.2.5 House Area of use – Freely accessible pipes in buildings, industrial plants, test laboratories – Measuring very low gas concentrations – Locating the source of gas – Finding leaks at internal connections – Leak testing of industrial components Symbol Unit –...
3 Operation 3.2.6 Gas measuring Area of use – Measuring the gas concentration in pipes and gas systems – Purging (to demonstrate purity or absence of gas, e.g. when commissioning/decommissioning gas systems) Symbol Unit – % vol. Measuring range Thermal 0.0 to 100 % vol.
3 Operation 3.2.7 Settings You can change the device settings and access information about the device under Settings in the menu (see Section 3.3 on page 25). 3.2.8 Starting/stopping/saving a measurement Depending on the application, measurements will have to be saved or started and then stopped.
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3 Operation The stored measurements can be displayed on a computer using a readout program. The program is available at www.sewerin.com. Start measurement 1. Press Menu. 2. Select Start measurement from the menu. This starts the measurement plot recording. The measurement plot recording must always be concluded with Stop measurement.
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3 Operation Save measurement 1. Press Menu. 2. Select Save measurement from the menu. 3. Enter a comment for the measurement. a) Select the characters required using the jog dial. Confirm each character using the jog dial. − Press Open stored comments. A list of the stored com- ments will appear.
3 Operation 3.2.9 Protocols You can retrieve or clear protocols of saved data under Protocol in the menu. When saved, the protocols are assigned to different protocol types. The following protocol types are available: ● Device inspection ● Measurements Protocols can only be cleared individually. You can find information on how to clear all protocols of one pro- tocol type in Section 3.3.7 on page 31.
3 Operation 3.2.11 Device information The following device information is shown under Device infor- mation in the menu: ● Firmware: version, date ● Service: date of the last service, date of the next service Settings The following menus and menu items are included under Settings (see Section 3.3.3 on page 28 to Section 3.3.7 on page 31): ●...
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You can change the PIN code at any time (see Section 3.3.4 on page 29). SEWERIN recommends setting a different PIN code after initial start-up, so only authorised personnel have access to the settings. 3. Enter the PIN code from left to right. The active digit is always displayed with a black background.
Adjustment H2 Test gas Inspection OK Exit System PIN Code Service interval Display Battery Autostart Device inspection Reset Language Exit Alarms Date/Time Memory Clear Interval Memory mode Exit Exit Measurung mode Fig. 12: Menu structure for the VARIOTEC 460 Tracergas settings...
3 Operation 3.3.3 Adjustment The Adjustment menu is used to set the sensors. NOTICE! The device may only be adjusted by specialist technicians in well ventilated rooms or in the open air. Incorrect adjust- ment can lead to incorrect measurement results. Note: A detailed description of adjustment along with important informa- tion is provided in Section 5.2 on page 44.
Used to change or reset the PIN code. Note: If you lose the PIN code, you must contact SEWERIN Service. If the PIN code is set to 0000, you will not be asked to enter it. The settings can then be accessed by anyone.
3 Operation Device inspection Used to switch the integrated device inspection on or off. Reset Used to reset the device settings to the factory settings. Language Sets the language. 3.3.5 Alarms Used to set the alarm threshold and the dynamic signal. Note: The ALEOS alarm cannot be adjusted.
3 Operation 3.3.7 Memory The Memory menu is used to specify how measurement data and protocols are handled. Clear Used to clear protocols. The different protocol types must each be cleared separately. All protocols in one protocol type are cleared at once. You can find information on clearing individual protocols in Sec- tion 3.2.9 on page 24.
/5/, only the following disposable/rechargeable batteries may be used: ● Batteries supplied by SEWERIN ● Batteries other than those supplied by SEWERIN, pro- vided compliance with /2/ is guaranteed. The batteries used in a battery compartment must always be identical in terms of type (disposable/rechargeable), capacity and manufacturer.
4 Power supply Rechargeable battery requirements ● NiMH rechargeable batteries ● Battery size: AA, Type: HR6 as per /4/ ● The creepage distance and air gap between the poles must not be less than 0.5 mm in accordance with /2/. ●...
4 Power supply ● The device or docking station must not be directly connected to a 24-V on-board power supply in the vehicle. The voltage is too high for the charging process. ● The battery should be charged at approximately room tem- perature.
4 Power supply Battery alarm As soon as the remaining capacity of the batteries gets low, a battery alarm will go off: Level 1: Battery almost empty – Battery capacity symbol flashes – Audible signal (one-off) – Operating signal doubles –...
5 Maintenance Maintenance In accordance with the legal regulations, device maintenance comprises the following elements: ● Device inspection including test of indication accuracy ● Adjustment ● Servicing All inspections must be documented. The documentation must be retained for at least one year. Device inspection 5.1.1 General information on the device inspection...
(see Section 3.2.9 on page 24). They can also be displayed on a computer using a readout program. The program is available at www.sewerin.com. The Perform device inspection symbol appears when a device inspection is due. It is visible in the display until the complete integrated device inspection has been car- ried out successfully for the selected application.
5 Maintenance Switching on the integrated device inspection 1. Press Menu. 2. Select Settings. 3. Enter your PIN code . 4. Select System. 5. Select Device inspection. 6. Select Yes. 7. Apply the setting with OK. 8. Exit the settings with Exit. 5.1.1.5 Order You can carry out the device inspections and the associated tests for the applications (groups) that are due to be inspected...
5 Maintenance The Dev. Test ... menu appears. 3. Select a test from the menu (General status, Fresh air, Test gas H2). 4. Carry out the test. For detailed information, refer to the following sections: − General status Section 5.1.3 −...
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5 Maintenance − Press Esc if you do not wish to enter an inspector for the device inspection. 3. Enter a password. a) Select the characters required using the jog dial. Confirm each character using the jog dial. b) Then confirm your entry with OK. −...
5 Maintenance 5.1.3 Testing the general status The general status test is part of the device inspection (see Sec- tion 5.1.1.1). It is based on estimations by the user. The following must be tested: ● Housing ● Signals ● Probe ●...
This indicates that the pump is working correctly. If the error message does not appear, the pump may be faulty. The device must be tested by SEWERIN Service. 2. Release the gas input again. After approximately 5 seconds, the error message should...
5 Maintenance 5.1.4 Testing indication accuracy with supply of fresh air The indication accuracy with supply of fresh air test is part of the device inspection (see Section 5.1.1.1). The device inspection has been opened (see Section 5.1.2.1). 1. Make sure that only fresh air is being drawn in. 2.
5 Maintenance 4. Wait until the displayed reading is stable. A Status: OK mes- sage will appear. 5. Press OK to confirm. 6. Stop the test gas supply. If the Status: OK message does not appear within a reasonable amount of time, this may be due to the following: Cause Corrective action Connections leaking...
It is not necessary to use all test gas concentrations to adjust a measuring range. However, adjusting with more than one test gas concentration increases the measurement quality. SEWERIN recommends the following test gas concentrations for adjusting the sensitivity: ● H2 PPM adjustment: 100 ppm H in synthetic air ●...
5 Maintenance 5.2.3 Preparation Carrying out an adjustment always takes some time. Leave your- self plenty of time to prepare the necessary steps of the procedure. Have all necessary tools available. Let the device run for several minutes to ensure that the temperature is correct, for example. 5.2.4 Performing the adjustment The zero point and sensitivity are adjusted following the same...
5 Maintenance 5.2.4.2 Adjusting the sensitivity The sensitivity is adjusted following the same procedure for all gas concentrations. The following resources are needed for adjusting the sensitivity: ● Test gas (see Section 5.2.2 on page 45) ● Test set for the supply of test gas Note: Details of how to use the test set can be found in the accompany- ing operating instructions.
5 Maintenance Servicing The device must only be serviced and repaired by SEWERIN Service. ● Send the device to SEWERIN for repairs and for annual main- tenance. Note: If there is a service agreement in place, the device can be ser- viced by the mobile maintenance service.
(see Section 5.2 on page 44) Adjustment failed Check test gas Test gas (see Section 5.2 on page 44) XFLASH Error can only be corrected by SEWERIN Service SEWERIN Service Error unknown Error can only be corrected by SEWERIN Service SEWERIN Service PX sensor...
7 Appendix Appendix Specifications and permitted operating conditions Device data Dimensions (W x D x H) approx. 148 x 57 x 205 mm approx. 148 x 57 x 253 mm with supporting bracket Weight approx. 1000 g, depending on equipment Device elements Display Monochromatic graphic display, 320 x 240 pixels...
7 Appendix Alarms Note: Alarms are only emitted in the Inspection above ground and House applications. There are no alarms in the Measuring in bar holes and Gas measuring applications. 7.2.1 Features ALEOS Type: End of measuring range Adjustable: Latching: Trigger: ALEOS alarm threshold exceeded Indicator:...
7 Appendix Memory capacity The total memory capacity of the device is divided up as follows: Protocol type Maximum number of storable protocols Device inspection Measurement There is a choice of two memory modes (see Section 3.3.7 on page 31). The selected memory mode applies for all protocol types.
7 Appendix Technical information 7.6.1 Sensitivity of the gas-sensitive semiconductor (SC) Low-oxygen atmospheres can reduce the sensitivity of the gas- sensitive semiconductor (sensor suffocation). Gaseous constituents of silicones, oils and phosphate esters for example have a damaging effect on the sensor. They permanently reduce the sensitivity.
7 Appendix 7.6.4 Cleaning The device must only be cleaned with a damp cloth. NOTICE! Do not use solvents, petrol or cockpit spray containing silicone or similar substances to clean the device!
1 l, pressure approx. 12 bar Test gas 5.0 % vol. H in N , test gas can 1 l, ZT37-10001 pressure approx. 12 bar Other accessories and consumables are available for the prod- uct. Please contact our SEWERIN sales department for further information.
H e r m a n n S e w e r i n G m b H h e r e b y d e c l a r e s t h a t t h e VARIOTEC 460 Tracergas fulfils the requirements of the fol- ® lowing guidelines: ● 2014/30/EU ● 2014/34/EU Gütersloh, 2016-04-20 Dr S. Sewerin (General Manager) The complete declaration of conformity can be found online.
Test gas can 16 05 05 Disposable battery, 16 06 05 rechargeable battery End-of-life equipment Used equipment can be returned to Hermann Sewerin GmbH. We will arrange for the equipment to be disposed of appropriately by certified specialist contractors free of charge.
7 Appendix 7.11 Terminology and abbreviations ALEOS ● Alarm at end of measuring range (end of scale) ALPPM ● Adjustable alarm in ppm range CENELEC ● European Committee for Electrotechnical Standardization NiMH ● Nickel metal hydride ● Parts per million Ring memory ●...
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