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sewerin SR-LD 800 Operating Instructions Manual

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SR-LD 800
Operating instructions

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  • Page 1 SR-LD 800 Operating instructions...
  • Page 2 Detector Sight Hand strap Handle Charging socket Rangefinder Protective screen Display Measurement laser* On/Off key Target laser ESC key Menu key *Exit opening not recognisable >> key << key Fig. 1: Detector SR-LD 800...
  • Page 3 Charge status Alarm threshold Measurement value Maximum value Average value Measurement value Mode Distance course Fig. 2: Display of the SR-LD 800 – Measurement mode (here: Laser activated, alarm threshold exceeded) Display of the SR-LD 800 – Main menu Fig. 3:...
  • Page 4 Illustration of warnings in this document DANGER! Risk of personal injury. Will result in serious injury or death. WARNING! Risk of personal injury. Could result in serious injury or death. CAUTION! Risk of personal injury. Could result in injury or pose a risk to health.

  • Page 5: Table Of Contents

    Introduction ................1 Information about this document ..........1 Purpose ..................1 Intended use ................2 Safety information ..............2 Product description ..............4 General information ..............4 Features ..................4 2.2.1 Lasers ..................4 2.2.2 Protective screen ..............6 2.2.3 Sight ..................6 2.2.4 Power supply ................6 2.2.5 Adjustment unit ..............7 Measuring mode ...............8 2.3.1 Measurement values ..............8...
  • Page 6 Measuring the gas concentration ..........23 Common errors ...............23 Settings ..................26 Alarm settings .................26 System settings ...............27 5.2.1 Offset ..................27 5.2.2 Distance ................28 5.2.3 Reaction Speed ..............29 5.2.4 Unit ..................29 5.2.5 Language ................29 Audio settings ................30 Maintenance ................31 Detector ...................31 6.1.1 Adjusting the detector ............31 6.1.2 Configuring the sight ............33...

  • Page 7: Introduction

    German version is authoritative. Right of reproduction No part of this document may be edited, duplicated or circulated in any form without the express consent of Hermann Sewerin GmbH. Registered trademarks Registered trademarks are generally not indicated in this document.

  • Page 8: Intended Use

    Hermann Sewerin GmbH. ● Do not use the product if it is damaged or faulty. Never use damaged or defective accessories. ● Only ever use accessories approved by Hermann Sewerin GmbH. ● Always observe the permitted operating and storage temperatures.

  • Page 9: Lithium-Ion Rechargeable Battery

    Laser The measurement laser and rangefinder are invisible Laser Class 1 infrared lasers. Lasers in this category are harmless when the product is used as intended. ● However, do not look into the laser beam because blinding, impairment of colour vision or irritation cannot be excluded. The target laser is part of Laser Class 2.

  • Page 10: Product Description

    Product description General information The SR-LD 800 Detector works according to the TDLAS method and has been designed for the remote detection of methane. A laser beam emitted by the detector is reflected by a surface (e.g. wall, ground, pipeline). If there is methane along the measuring section, the methane will absorb the laser beam signal.
  • Page 11 The measurement laser will increase in width the further it is from the reflective surface (fig. 5). This increases the area of the reflection point and the intensity of the reflected beam becomes weaker. The measurement laser’s reflection will be diffuse, i.e. the light is scattered.

  • Page 12: Protective Screen

    2.2.2 Protective screen The detector’s lens is protected by a mirrored plastic screen. NOTICE! Incorrect measurements if protective screen is scratched The protective screen is sensitive to scratching. A scratched protective screen can produce incorrect measurement results. ● Protect the protective screen from scratches on its surface. 2.2.3 Sight The detector features a red dot sight.

  • Page 13: Adjustment Unit

    2.2.5 Adjustment unit The adjustment unit consists of a gas tank fixed in a plastic block. The gas tank contains adjustment gas. The adjustment unit is integrated in the case (fig. 6, right image). After the adjustment process is started, the detector is placed in the case.

  • Page 14: Measuring Mode

    Measuring mode When switched on, the detector is automatically in measuring mode. To perform a measurement, the lasers must be switched on manually. Inside the front cover, there is an overview of the symbols, values and other information shown on the display during the measuring mode (fig.

  • Page 15: Alert When The Alarm Threshold Is Exceeded

    Fig. 7: Measuring mode – Y axis scaling Left image: Low scale (here: measurement value 21 ppm•m, scale: 30 ppm•m) Right image: High scale (here: measurement value 4591 ppm•m, scale: 5000 ppm•m) 2.3.2 Alert when the alarm threshold is exceeded If a measurement value exceeds the alarm threshold, the detector will trigger an alarm: ●...

  • Page 16: Protocol

    2.3.3 Protocol The detector automatically records current measurement values. The Protocol (fig. 9) shows the last 12 measurement values. ● The current measurement value is saved every 6 seconds. If a higher value than before is measured before the 6 seconds have expired, this higher value is saved.

  • Page 17: Menu

    was aimed for. The requirement for this plausibility check is that the target is not more than about 100 metres (328 ft). away. The distance value is used within the device to calculate the integral gas concentration (see examples in section 2.7). For distances from 100 metres (328 ft), the calculation uses 99 metres (324.72 ft).

  • Page 18: Audible Signal

    ● Sensitivity Mode particularly suitable for distances up to 30 m (98.42 ft). The detector is very sensitive. ● Distance Mode very suitable for long distances. The detector is less sensitive than in Sensitivity mode. Audible signal The detector will sound an audible signal in the following situations: ●...
  • Page 19 The measurement result can be the same with a small, highly concentrated gas cloud as a larger gas cloud with a lower concentration (fig. 11). Fig. 11: Integral gas concentration – identical measurement value despite different gas concentration and size of the gas cloud In addition, the naturally occurring methane (~2 PPM) in the ambient air affects the measurement value.

  • Page 20: Operation

    Operation Key functions Depending on the situation, the keys have different functions. When switched off Actions On/Off key – Switch the detector on (long press) In measuring mode Actions On/Off key – Switch the laser on and off (short press) –...

  • Page 21: Switching The Detector On/Off

    Switching the detector on/off Switching on The detector is switched off. 1. Press the On/Off key until the start image (fig. 12) appears. 2. Wait until you can hear an audible signal. The detector is in measuring mode (fig. 2, top picture). The lasers are switched off.
  • Page 22 For safety reasons, SEWERIN recommends the following: switch off the lasers temporarily when the detector is switched on but you are not in the process of detecting. CAUTION! Risk of injury from laser radiation Class 2 lasers can cause eye damage.

  • Page 23: Switching Mode

    Switching mode When switching mode, the two modes are displayed in a loop. The detector is in measuring mode. 1. Press and hold the menu key until the mode changes. 2. If required: − repeat the process until you have selected the required mode.

  • Page 24: Resetting To Factory Settings

    The selected menu item is highlighted in white. 5. Press the Menu key. The selection field is highlighted in white. 6. Using the >> key or << key, change the setting as required. 7. If further settings need to be changed: a) Press the Menu key.

  • Page 25: Aiming At The Target

    Fig. 14: Reset – start view Aiming at the target When detecting methane gas, the target to be aimed at is usually a suitable reflective surface. The leak is assumed to be in front of the reflective surface (fig. 11). There are two ways of aiming at the target: ●...

  • Page 26: Aiming Using The Sight

    3.7.2 Aiming using the sight The sight makes detection easier if the target laser’s reflection point is difficult to see or cannot be seen at all. Aiming using the sight is particularly suitable for: ● long distances (from about 30 metres (98.42 ft)) ●...

  • Page 27: Viewing The Protocol

    Fig. 15: Aiming using the sight (red: red dot, green: target laser) Left image: Target laser and red dot detectable in sight Right image: Target laser and red dot overlapping General information about the sight can be found in section 2.2.3. For configuring the sight, see section 6.1.2.

  • Page 28: Detection Of Methane

    Detection of methane Requirements In order to successfully detect methane using the detector, the following requirements have to be met: ● there is methane along the measuring section (detection report) ● the laser must aim through the methane cloud ● there is a reflective surface Influences on the measurement result The following factors influence the measurement result: ●...

  • Page 29: Ambient Conditions

    ● Ambient conditions Wind as well as high ambient temperatures can result in the gas evaporating. Consequently, a methane concentration that is too low will be measured or none at all. Measuring the gas concentration To measure the gas concentration, the requirements (section 4.1) must be met.
  • Page 30 ● Detection in the case of polyethylene pipelines with a diameter less than 20 millimetres (0.7874 in) and a very low wall thickness: the detector may measure the gas concentration inside the pipeline. ● There are obstructions along the measuring section (fig. 16 and fig.
  • Page 31 Fig. 18: Error source during measuring (3) Left image: Two reflection points in a corner Right image: One reflection point after change of position and angle 4 Detection of methane │ 25...

  • Page 32: Settings

    Settings Settings can be configured in the following menus of the main menu: ● Alarm ● System ● Audio Alarm settings In the Alarm settings menu (fig. 19), the alarm thresholds can be configured for every mode. ● Distance Alarm threshold for Distance mode ●...

  • Page 33: System Settings

    The user decides which measurement value the alarm thresholds are set for. The following is common: ● to detect a low methane concentration > set a low alarm threshold ● to detect a high methane concentration > set a high alarm threshold System settings The following can be configured in the System settings menu...

  • Page 34: Distance

    Offset Unit ppm•m Value range 0 – 1000 Increment 5.2.2 Distance The detector can measure gas concentrations at very different distances, from close up to 200 m (656 ft). In order to obtain equally reliable measurement results at all ranges, the detector must be configured for the planned distance.

  • Page 35: Reaction Speed

    ● Slow For gas clouds with comprehensive expansion. The detector is moved slowly. SEWERIN recommends choosing the Fast setting when the gas cloud size cannot be estimated accurately. 5.2.4 Unit The unit for distance display can be set under Unit.

  • Page 36: Audio Settings

    Audio settings In the Audio settings menu (fig. 21), you can configure whether an audible signal should sound when the alarm threshold is exceeded. ● On If a measurement value exceeds the alarm threshold, an audible signal will sound. ● Off If a measurement value exceeds the alarm threshold, no audible signal will sound.

  • Page 37: Maintenance

    Maintenance Detector 6.1.1 Adjusting the detector The detector must be re-adjusted at least every 3 months. An adjustment takes about 3 minutes. WARNING! Health hazard from laser radiation in the event of incorrect adjustment Adjustments not performed in accordance with the instructions can cause hazardous laser radiation.
  • Page 38 Fig. 22: Adjustment Left image, top: Start view Right image, top: Countdown Message Adjustment completed Left image, bottom: 32 │ 6 Maintenance...

  • Page 39: Configuring The Sight

    6.1.2 Configuring the sight The following can be configured for the sight: ● size of the red dot ● distance between detector and reflective surface Fig. 23: Sight – adjustment options 1 Adjustment screws, 2 Plus key, 3 Minus key Size of the red dot The size of the red dot can be changed.
  • Page 40 ● The user must remember the distance for which the sight has been set. The set distance is not displayed by the detector. ● SEWERIN recommends a distance of at least 1.5 metres (4.92 ft) between the detector and the reflective surface.

  • Page 41: Caring For, Storing And Transporting The Detector

    Servicing must be performed by specialists. The device must be serviced once a year. ● Send the device to SEWERIN Service for servicing. ● If you have a service contract, the device can be serviced by the mobile service team.

  • Page 42: Rechargeable Battery

    Rechargeable battery 6.2.1 Charging the battery DANGER! Risk of explosion from sparks High charging currents occur when batteries are being charged. ● Only ever charge the battery away from explosive environments. NOTICE! Damage to property possible if used incorrectly The USB port of the charging socket is exclusively intended for charging the rechargeable battery.

  • Page 43: Replacing The Rechargeable Battery

    6.2.2 Replacing the rechargeable battery The spare battery is integrated in a second handle. 1. Remove the handle attached to the detector. 2. Attach the handle with the spare battery to the detector. 6.2.3 Maintaining and storing the rechargeable battery If a rechargeable battery is to be stored for long periods, it must be prepared for storage and maintained during storage.
  • Page 44 in compliance with the current applicable version of the ADR regulations. Identifying faulty rechargeable batteries A rechargeable lithium-ion battery is considered to be faulty if one of the following criteria applies ● housing damaged or badly deformed ● liquid leaking from battery ●...

  • Page 45: Faults And Problems

    You temperature may have to take the detector to a cooler or hotter environment. Laser control faulty – Contact SEWERIN Service. Light weak Surface does not – Aim the detector at the target reflect sufficiently at another angle.

  • Page 46: Fixing Problems Yourself

    Fixing problems yourself Problem Possible cause Corrective action The detector will not Discharge the – Charge or replace the switch on rechargeable rechargeable battery. battery. No red dot Laser not switched – Switch on the laser. detectable in sight Red dot excessively –...
  • Page 47 – Adjust the detector. measurement adjustment values than usual for short-range measurements Lower measurement values than usual for long-range measurements Contact SEWERIN Service if you cannot fix a fault yourself or if problems occur repeatedly. 7 Faults and problems │ 41...

  • Page 48: Appendix

    Appendix Technical data Device data Dimensions (W × D × H) 76 × 201 × 248 mm (2.99 × 7.91 × 9.76 in) Weight 954 g (33.39 oz) Features Display LCD 2.3″ 320 × 240 pixels Interface • charging socket •...
  • Page 49 Power supply Power supply lithium-ion battery (rechargeable) [9066-5003] Net weight of batteries • weight per cell: 0.0475 kg (0.105 lb) • total: 3 × 0.0475 kg = 0.143 kg (3 × 0.105 lb = 0.315 lb) Operating time, typical 7.5 h Battery power 36 Wh Charging time...

  • Page 50: Delivery Contents

    Delivery contents ● Detector SR-LD 800 ● Carrying case − for transport and storage − with adjustment unit ● Hand strap − for the safe handling of the detector ● Charger ● Spare rechargeable battery − integrated in a second handle ●...

  • Page 51: Symbols On The Display

    Fig. 25: Sticker on the bottom of the housing Fig. 26: Sticker on the handle (rechargeable battery) Symbols on the stickers Comply with the operating instructions! Laser radiation Do not look into the laser beam! Do not dispose of in domestic waste! CE mark Recycle the lithium-ion rechargeable battery! Symbols on the display...

  • Page 52: Conversion Of Concentration Data

    Signal Audio (audible signal for alarm threshold activated) Audio (audible signal for alarm threshold deactivated) Charge status Bluetooth Distance Conversion of concentration data Gas concentrations are specified in the unit ppm or % vol. Conversion: 1 % vol. = 10,000 ppm 0.1 % vol.

  • Page 53: Declaration Of Conformity

    Declaration of Conformity Hermann Sewerin GmbH hereby declares that the SR-LD 800 detector fulfils the requirements of the following guidelines: ● 2011/65/EU ● 2014/30/EU ● 2014/53/EU The complete Declaration of Conformity can be found online. Advice on disposal The European Waste Catalogue (EWC) governs the disposal of devices and accessories in accordance with EU Directive 2014/955/EU.

  • Page 54: Index

    Index Adjustment 31 Factory settings 44 Adjustment failed (error message) 39 resetting to factory settings 18 Adjustment unit 7 Features 4 Aiming 19 Fixing problems 40 using the sight 20 using the target laser 19 Alarm settings 26 Gas concentration Alarm threshold converting 46 configuring 26...
  • Page 55 Measured variable 12 Servicing 35 Measurement laser 4 Settings 26 Measurement result 22 alarm 26 Measurement value 8 audio 30 average value 8 changing 17 course 8 distance 28 current 8 distance (unit) 29 maximum value 8 language 29 Measurement value course 8 offset 27 Measuring mode 8 reaction Speed 29...
  • Page 56 +34 91 74807-57 Fax.: +351 234 024 446 Fax: +34 91 74807-58 www.sewerin.com www.sewerin.com info@sewerin.pt info@sewerin.es Sewerin Sp. z o.o. Sewerin Ltd. ul. Twórcza 79L / 1 Hertfordshire 03-289 Warszawa, Polska Tel.: +48 22 675 09 69 Phone: +44 1462-634363 Tel.

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