SGB DLR-P Manual
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SGB DLR-P Manual

Overpressure leak detector
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Overpressure leak detector
DLR-P
Z – 65.26-349
No.: 604 202
Documentation DLR - P
Issue: 11/2009
SICHERUNGSGERÄTEBAU GMBH
Hofstraße 10
57076 Siegen

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Summary of Contents for SGB DLR-P

  • Page 1 Overpressure leak detector DLR-P Z – 65.26-349 No.: 604 202 Documentation DLR - P Issue: 11/2009 SICHERUNGSGERÄTEBAU GMBH Hofstraße 10 57076 Siegen...
  • Page 2 Overview – Design variant - Ü-1 - OVERPRESSURE LEAK DETECTOR DLR.. Overview of the design variants The overpressure leak detectors of the DLR-series are available in different designs which are described in detail by the suffix characters. DLR-… …. PM “Manometer“, the leak detector is equipped with a digital pressure display in the hous- ing cover.
  • Page 3 OVERPRESSURE LEAK DETECTOR DLR-P Content Technical description for the overpressure leak detector DLR-P 13 pages Drawings to the technical description 7 pages 4 pages Appendix to the technical description 3.1 Appendix TD 3.2 Appendix TF 3.3 Statement DLR- Declaration of conformity 1 page P ..

  • Page 4: Table Of Contents

    OVERPRESSURE LEAK DETECTOR DLR-P .. Contents Page Subject Field of application Requirements for interstitial spaces Pipes Fittings Materials carried in the pipes / leak detection medium Description of functions and operation DLR- Switching values and pressure values P .. Normal operation...

  • Page 5: Subject

    DLR-P .. The dots are used in place of the alarm pressure. The alarm pressure may also be followed by letters to describe the design variant of the leak detector in more detail.

  • Page 6: Description Of Functions And Operation

    (e.g. operator, manufacturer of the pipeline ...). 3. Description of functions and operation The overpressure leak detector DLR-P monitors both walls of a pipe/fitting for leaks. The DLR- monitoring pressure is high enough to ensure that leaks in the inner or outer wall are indicated P ..

  • Page 7: Normal Operation

    OVERPRESSURE LEAK DETECTOR DLR-P .. "Pump OFF“ switching value (=setpoint pressure) "Pump ON" switching value The switching value "Pump ON“ is around 100 mbar lower than the switching value "Pump OFF" (p - ~100 mbar) Opening pressure of overpressure valve (on the interstitial space side) ÜDV1...

  • Page 8: Description Of The Display And Control Elements

    OVERPRESSURE LEAK DETECTOR DLR-P .. Description of the display and control elements 3.5.1 Display element states (signal lamps) for type DL .. Signal lamp Operating status Alarm status Alarm, audible alarm Device fault signal acknowledged OPERATION: green FLASHING ALARM: DLR- P ..

  • Page 9: Personal Safety Equipment

    OVERPRESSURE LEAK DETECTOR DLR-P .. 4.2. Personal safety equipment The parts listed here apply in particular to safety when working on plants which may pose an potentially risk of explosion. If work is carried out in industries in which it must be assumed that an explosive atmosphere is present then the following items of equipment are required as an absolute minimum: •...

  • Page 10: Installation Of The Dry Filter

    OVERPRESSURE LEAK DETECTOR DLR-P .. 4.5. Installation of the dry filter (1) Preferably close to the leak detector. (2) Vertical with the intake opening facing down, using the enclosed installation materials. (3) The dry filter and in the intake connection port of the leak detector should be connected via a PVC hose (or similar).

  • Page 11: Operating Instructions

    OVERPRESSURE LEAK DETECTOR DLR-P .. (7) Build-up of pressure with the assembly pump or the pressure cylinder (observe the pressure settings) - can be performed directly via the pressure line or via the three-way cock 20 (position IV). Note: If no pressure is built up with the assembly pump (or pressure gas canister) connected, then the leak should be located and rectified (if required check that the delivery rate of the assembly pump and the settings of the pressure reducer are correct).

  • Page 12: Intended Use

    OVERPRESSURE LEAK DETECTOR DLR-P .. 6.2.2 Maintenance work and functional tests performed by qualified persons (1) Testing once a year for functional and operational reliability and safety. (2) Test scope according to section 6.4. (3) It should also be checked that the conditions in sections 4, 5 and 6.2 are satisfied.
  • Page 13 OVERPRESSURE LEAK DETECTOR DLR-P .. (4) Check the test valve at the end of the interstitial space away from the leak detector for tightness and check that it is free of dirt – clean as required. (5) Test for free passage of air through the interstitial space (section 6.4.2) Test the switching values with a testing device (section 6.4.3).
  • Page 14 OVERPRESSURE LEAK DETECTOR DLR-P .. Close the needle valve and determine the switching values for "Alarm OFF" and "Pump OFF", write the values down. (If necessary open the needle valve slightly so that there is a slow pressure increase.) Set the three-way cocks 20 and 21 to position “I”. Disconnect the testing device.

  • Page 15: Alarm / Fault

    OVERPRESSURE LEAK DETECTOR DLR-P .. Start with the tightness test once the pressure has been equalised. The test is passed if the values in the table below are met. A greater drop in pressure means more stress on wearing parts.

  • Page 16: Marking

    OVERPRESSURE LEAK DETECTOR DLR-P .. 8. Marking • Electrical data • Serial no. • Type designation • Date of manufacture (month / year) • Manufacturer’s code • Legally required symbols/marks • The connecting line(s) can be connected to areas for which category 3 devices (Group II DLR- (G)) are required (T1 to T3;...
  • Page 17 Druckleitung Messleitung 21-09-2005 P - 078 000 17/38...
  • Page 18 22-09-2005 M1 - 078 000 18/38...
  • Page 19 230 V / 50 Hz 22-09-2005 M2 - 078 000 19/38...
  • Page 20 230 V / 50 Hz 22-09-2005 M3 - 078 000 20/38...
  • Page 21 230 V / 50 Hz ~ 200 mm 22-09-2005 M4 - 078 000 21/38...
  • Page 22 17/60 24.1 27-11-2002 SL - 853 600 22/38...
  • Page 23 90° 90° Kl. 1,0 31-10-2005 P - 115 392 23/38...
  • Page 24 APPENDIX TD OVERPRESSURE LEAK INDICATOR DLR - P .. Technical data 1. Electrical data Rated input (without external signal) 230∼ V - 50 Hz - 150 W Switching contact load, terminals AS (5 and 6) 230∼ V - 50 Hz - 200 VA Switching contact load, potential-free contacts max: 230∼...
  • Page 25 TF 1 (the larger dry filters could however also be used) Dry filters for overground pipes: Max. volume of the interstitial space with Type TF 1 TF 2 TF 6 DLR-P 1.1 1150 2600 DLR-P 1.5 1850 DLR- DLR-P 2.0 P ..
  • Page 26 APPENDIX DP OVERPRESSURE LEAK DETECTOR DLR-P Evaluating the display for the function "Tightness test" Chapter 3.5.2 described "Checking the tightness of the monitored system". This function can be used to obtain an indication of the tightness of the monitored system.
  • Page 27 From a technical point of view, there are no objections to using a DLR-P leak detector on pipes with 4 mm frost-free connecting lines which are routed underground or inside between interstitial spaces and the leak detector.
  • Page 28 To remove the cover To open the cover B x H x T = 266 x 217 x 110 18-11-2003 Dimension / Drilling 28/38...
  • Page 29 T = 140 28-06-2005 Drilling / Dimension 29/38...
  • Page 30 Work Sheet: AB-820 500 Pneumatic connections 1 Flare type fitting for flare type pipes 1. Lubricate the O-rings 2. Place the intermediate ring loosely in the threaded connection piece 3. Push the union nut and the thrust collar over the pipe 4.
  • Page 31 Work Sheet: AB-820 500 Pneumatic connections 5 Tube connections (socket 4 and 6 mm for EXCESS PRESSURE) 1. Push wire or screw clip over the tube 2. Push the tube onto the Cu pipe or the tube socket (if necessary heat or dampen PVC tube), tube must fit tightly all the way round 3.
  • Page 32 57076 Siegen Object of Overpressure leak detector based on leak detector type DLR approval: in designs DLR-G, DLR-P and DLR-GS for double walled pipes in systems for storage, filling and handling of water contaminating liquids. March 2013 Expiry of approval: The above-specified object is hereby granted national technical approval certificate*.
  • Page 33 (mobile) pressure tank (or compressed gas network) which may be used with air or inert gas as a leak detection medium. DLR-P with an alarm pressure of 1.1 bar or 2.3 bar with internal pressure pump with air as a leak detection medium.
  • Page 34 Page 4 of National Technical Approval no. Z-65.26-349 of 31 March 2008 Construction product specifications Composition 2.1.1 A leak in the walls of the interstitial space generates a pressure drop which is indicated visually and audible at an alarm switch point of ≥ 1.0 bar when exceeding the highest operating pressure of the pipe.
  • Page 35 (2) Models DLR-G, DLR-GS and DLR-P of the leak detector may be used on pipes to convey water-polluting liquids according to specifications in the Technical Description of the respective leak detector model.
  • Page 36 Page 6 of National Technical Approval no. Z-65.26-349 of 31 March 2008 (4) Only those companies which are specialist companies, according to § 19 1 Water Ecology Act (WHG), with respect to the installation, maintenance, repair and cleaning of the leak detector may be commissioned to carry out these tasks.
  • Page 37 EC DECLARATION OF CONFORMITY SGB Sicherungsgerätebau GmbH Hofstraße 10 D- 57076 Siegen hereby declare in sole responsibility that the leakage probes DL.., DLR-P.. comply with the essential requirements of the EC directives listed below. This declaration shall lose its validity if the device is modified without consulting us.
  • Page 38 Warranty Dear customer, You have purchased a high-quality leak detector from our company. All of our leak detectors undergo a 100% quality control examination. The type plate with the serial number is only affixed after all test criteria have been complied with. The warranty period for our leak detectors is 24 months, beginning on the date of installation on site.

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