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Measurement value (numerical) Unit Measurement value (graphical) Maximum value Mode Display of the SR-LD 200 – Measuring mode Fig. 2: (here: Laser activated, alarm threshold exceeded) Fig. 3: Display of the SR-LD 200 – Menu Left image: Main menu Right image: Settings menu...
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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.
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 Sight ..................5 2.2.3 Power supply ................6 2.2.4 Adjustment unit ..............6 Measuring mode and menu ............7 2.3.1 Measuring mode ..............7 2.3.2...
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Settings ..................22 Alarm 1 and Alarm 2 ..............22 Offset ..................23 Audio ..................23 Language ................23 Maintenance ................24 Detector ...................24 6.1.1 Adjusting the detector ............24 6.1.2 Configuring the sight ............25 6.1.3 Caring for, storing and transporting the detector ....27 6.1.4 Servicing ................28 Rechargeable battery ..............28 6.2.1 Charging the battery .............28...
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 docu- ment.
● Handle the product carefully and safely, both during transport and operation. ● Do not make any changes or modifications to the product un- less these have been expressly approved by Hermann Sewerin GmbH. ● Do not use the product if it is damaged or faulty. Never use damaged or defective accessories.
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Laser The measurement laser is an invisible Laser Class 1 infrared laser. 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.
Product description General information The SR-LD 200 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 measur- ing section, the methane will absorb the laser beam signal.
Fig. 4: Warning on the detector Meaning: laser radiation. Class 2 laser. Do not look into the laser beam! Note: The warning does not show all laser classes but just the highest. Fig. 5: Lasers 1 Measurement laser, 2 Target laser, 3 Reflective surface 2.2.2 Sight The detector features a red dot sight.
2.2.3 Power supply The detector is powered by a lithium-ion rechargeable battery. The rechargeable battery is integrated in the handle. Information about charging the rechargeable battery can be found in section 6.2.1. 2.2.4 Adjustment unit The adjustment unit consists of a gas tank fixed in a plastic block. The gas tank contains adjustment gas.
Measuring mode and menu 2.3.1 Measuring mode When switched on, the detector is automatically in measuring mode. To perform a measurement, the lasers must be switched on manually. As soon as the lasers are switched on and the measurement laser meets a reflective surface, the following measurement values can be seen on the display: ●...
Fig. 7: Measuring mode (here: Laser activated, alarm threshold 100 ppm•m) Left image: Measurement value below the alarm threshold Right image: Measurement value exceeds the alarm threshold 2.3.2 Menu If you want to open the menu, the detector must be in measur- ing mode.
The top level of the menu is the main menu. The main menu comprises the following menu items: ● Settings (section 5) ● Adjustment (section 6.1.1) ● Reset (section 3.6.3) Modes The detector can be operated in various modes. The various modes are suitable for use based on different distances.
Measured variable and unit The detector measures the gas concentration along the measur- ing section. The gas concentration is specified in ppm, the size (length) of the gas cloud in metres. The unit of the measured variable is therefore: ppm•m (concentration multiplied by length) Integral gas concentration The measured variable is described as integral gas concentra- tion.1 The integral gas concentration depends on the following:...
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In addition, the naturally occurring methane (~1 ppm) in the ambi- ent air affects the measurement value. The impact of the natural methane increases the further the distance between the laser and the reflective surface. The natural methane content along the measuring section must be deducted from the measurement value.
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) –...
Switching the detector on/off Switching on The detector is switched off. 1. Press the On/Off key until the start image (fig. 10) 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.
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.
Switching between measuring mode and menu Opening the main menu The detector is in measuring mode. − Briefly press the menu key. The main menu appears. The se- lected menu item is highlighted in white. Switching back to measuring mode The main menu is open.
3. Select Audio. 4. Change the setting as required. 5. Press the On/Off key to apply the setting. 3.6.3 Resetting to factory settings The current settings can be reset to factory settings at any time. Information about the factory settings can be found in section 8.3. Note: The settings will be reset without prompting you for confirmation.
Aiming at the target When detecting methane, 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. 9). There are two ways of aiming at the target: ●...
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the red dot and the target laser overlap during the aiming process (fig. 12, right image), the laser will meet a reflective surface at the set distance. If the red dot cannot be seen: − change the angle at which you are looking through the sight. −...
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: ●...
● 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.
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● Detection in the case of polyethylene pipelines with a diameter less than 20 millimetres and a very low wall thickness: the de- tector may measure the gas concentration inside the pipeline. ● there are obstructions along the measuring section (fig. 13 and 14).
Settings The following settings can be configured for the detector: ● Alarm 1 (alarm threshold) ● Alarm 2 (alarm threshold) ● Offset (moving the zero point) ● Audio (audible signal for alarm threshold) ● Language Alarm 1 and Alarm 2 The alarm thresholds can be configured under the menu items Alarm 1 or Alarm 2.
Offset The measurement laser’s zero point can be changed to offset an existing basic concentration of methane under menu item Offset. Note: Configure the offset for a higher value than zero only if there is a known basic concentration of methane in the measurement environment.
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 in- structions can cause hazardous laser radiation.
6. Wait until an audible signal indicates the end of the adjustment. Fig. 16: Adjustment Left image: Start view Middle image: Countdown Right image: Message Adjustment completed 6.1.2 Configuring the sight The following can be configured for the sight: ● size of the red dot ●...
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Note: Using the minus key, the red dot can be decreased in size so much that it is no longer detectable. Distance The sight is always set for a specific distance between the detec- tor and the reflective surface. During the measurement process, this distance must maintained.
Fig. 18: Sight – setting the distance using the adjustment screws 1 Moving the red dot to the right or left 2 Moving the red dot up or down 6.1.3 Caring for, storing and transporting the detector Care All that is necessary to care for the detector is to wipe it down with a damp cloth when required.
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.
2. Connect the rechargeable battery to a suitable power source using the charger. After the charging process: − Protect the charging socket with the protective cap again. 6.2.2 Replacing the rechargeable battery The spare battery is integrated in a second handle. 1.
6.2.4 Handling faulty lithium-ion rechargeable batteries Rechargeable lithium-ion batteries are always classed as danger- ous goods for transport purposes. Transport of faulty lithium-ion batteries is only permitted under cer- tain conditions (e.g. must not be transported as air freight). Where transport is permitted (e.g.
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.
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– Adjust the detector. values than usual adjustment 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. 32 │ 7 Faults and problems...
Appendix Technical data Device data Dimensions (W × D × H) 58 × 130 × 202 mm Weight 623 g Features Display LCD 1.8″ 240 × 320 pixels Interface • charging socket • Bluetooth Control 3 keys Sensor laser: • measurement laser Other features •...
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Power supply Power supply lithium-ion battery (rechargeable) [9066-4003] Net weight of batteries • weight per cell: 0.0475 kg • total: 3 × 0.0475 kg = 0.143 kg Operating time, typical > 13 h Battery power 36 Wh Charging time approx. 2.5 h Charging temperature 10 –...
Delivery contents ● 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 ● Tools − for replacing the rechargeable battery and for configuring the sight ●...
Sticker on the detector and rechargeable battery The detector and the rechargeable battery are marked in accord- ance with statutory regulations. Fig. 19: Sticker on the bottom of the housing Fig. 20: Sticker on the handle (recharge- able battery) Symbols on the stickers Follow the operating instructions! Laser radiation Do not look into the laser beam!
Symbols on the display Symbols that are shown on the display without a descriptive text are explained below. Signal Audio (audible signal for alarm threshold activated) Audio (audible signal for alarm threshold deactivated) Charge status Bluetooth Conversion of concentration data Gas concentrations are specified in the unit ppm or % vol.
Declaration of Conformity Hermann Sewerin GmbH hereby declares that the SR-LD 200 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.
Index Adjustment 24 Gas concentration unit 6 conversion 37 Adjustment failed (error message) 31 integral 10 Aiming 17 measuring 20 using the sight 17 unit 10 using the target laser 17 Alarm 1/2 22 Alarm threshold 22 Handling the detector 19 exceeded 7 Ambient conditions 20 Audible signal 7, 9...
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Measuring mode 7 Switching off switching to the menu 15 detector 13 Menu 8 lasers 13 adjustment 24 Switching on reset 16 detector 13 settings 22 lasers 13 structure 8 Symbols switching to measuring mode 15 display 37 Mode 9 stickers 36 switching 14 Target laser 4, 17...
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