SGB DL Series Instructions Manual
  1. Manuals
  2. Brands
  3. SGB Manuals
  4. Security Sensors
  5. DL Series
  6. Instructions manual

SGB DL Series Instructions Manual

Hide thumbs Also See for DL Series:
Table of Contents

Advertisement

Quick Links

Download this manual
Documentation
Pressure Leak Detector DL ..
Please read instructions prior to commencing any work
As of: 03/2020
Item no.: 603 022

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DL Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for SGB DL Series

Summary of Contents for SGB DL Series

  • Page 1 Documentation Pressure Leak Detector DL .. Please read instructions prior to commencing any work As of: 03/2020 Item no.: 603 022...
  • Page 2 DL Versions Design Variations The leak detectors in the DL series are available in different versions that are described more precisely by the letters attached to them. DL .. ELC P FC M LE/LG 8S Up to 8 leak detection probes can be connected to the leak detector to moni- tor access chambers, sumps, etc.

  • Page 3: Table Of Contents

    Contents Table of Contents 1.  General ..................5  1.1  Information ................ 5  1.2  Explanation of Symbols ............ 5  1.3  Limitation of Liability ............5  1.4  Copyright ................5  1.5  Warranty Conditions ............6  1.6  Customer Service ............. 6  2.  Safety ..................7  2.1 ...
  • Page 4 Contents 9.  Spare Parts ................35  10.  Accessories................35  11.  Disassembly ................35  11.1  Disassembly ..............35  11.2  Disposal ................35  12.  Appendix ................36  12.1  Dimensions and Drilling Patterns ........36  12.2  Version 8S "Leak Detection Probes for Monitoring Access and Monitoring Chambers"...

  • Page 5: General

    All information and instructions in this documentation have been com- piled considering the applicable standards and regulations, the state of the art, and our longstanding experience. SGB does not assume any liability in the case of:  Noncompliance with these instructions ...

  • Page 6: Warranty Conditions

    Customer Service Our customer service is available for any inquiries. For information on contacts please refer to our website www.sgb.de or the label of the leak detector. - 6 - PRESSURE LEAK DETECTOR DL .. 02/03/2020...

  • Page 7: Safety

    Safety 2. Safety Intended Use  Pressure leak detector for double-walled containers, where pres- sure is maintained via a pump.  Connection of interstitial spaces only in the case of below- ground interstitial spaces.  Components that can generate explosive vapors must be con- tained within double-walled containers, tubs, or surface sealings whose medium-side walls are permeation-tight.

  • Page 8: Qualification

    The personnel must be capable of independently recognizing and avoiding potential risks based on their qualifications. Companies commissioning leak detectors should have completed rel- evant training with SGB, through SGB, or through its authorized rep- WARNING! resentative. Danger to humans National guidelines must be adhered to.

  • Page 9: Fundamental Hazards

    Safety  Suitable combustible gas indicator calibrated to the existing vapor- air mixture (work should be performed only at a concentration of 50 % below the lower explosion limit  Measuring equipment to determine the oxygen content of the air (Ex/O meter) Fundamental Hazards DANGER...

  • Page 10: Technical Data

    Technical Data 3. Technical Data General Data 3.1.1 DL 50 to DL 450 Dimensions and drilling pattern see Appendix, section 12.1 Weight 2.3 kg Storage temperature range -40°C to +70°C Operating temperature range 0°C to +50°C - DL .. P version -20°C to +50°C Buzzer volume >70 dB(A) at a distance...

  • Page 11: Switching Values

    < 3400 3750  50  4150 Special switching values agreed to by SGB and customers The following abbreviations are used in the table: Maximum pressure on the tank floor, incl. overburden pressure Switching value "Alarm ON"; the alarm will be triggered at this pressure level at the latest Switching value "Pump OFF"...

  • Page 12: Field Of Application

    Technical Data Field of Application 3.5.1 Interstitial space requirements  Proof of pressure resistance of the interstitial space (see section 3.4 Switching Values, column "p " minimum test pressure of PRÜF the interstitial space)  Proof of suitability of the interstitial space (for Germany: proof of usability from construction authority) ...

  • Page 13: Design And Function

    Design and Function 4. Design and Function System Design 4.1.1 Plastic housing Interior view with: Signal lamp “alarm”, red Signal lamp "operation", green (white) Overpressure pump Three-way valve in the pressure line Three-way valve in the measuring line Check valve Dust filter Buzzer Overpressure valve (interstitial space)
  • Page 14 Design and Function 4.1.2 Stainless steel housing for DL 50 to DL 450 Interior view with: Overpressure pump Three-way valve in the pressure line Three-way valve in the measuring line Check valve Dust filter Buzzer Overpressure valve Display board Main board Moisture sensor (optional) - 14 - PRESSURE LEAK DETECTOR DL ..
  • Page 15 Design and Function 4.1.3 Stainless steel housing for DL 590 to DL 3000 Interior view with: Overpressure pump Three-way valve in the pressure line Three-way valve in the measuring line Check valve Dust filter Buzzer Overpressure valve Display board Main board Pressure sensor Contact for serial data transfer Keypad terminal strip...

  • Page 16: Normal Operating Condition

    Design and Function The DL .. pressure leak detector monitors both walls of a container for leaks. The monitoring pressure is so high that leaks are displayed be- low or above the liquid level (stored material and groundwater) due to pressure drops.

  • Page 17: Dry Filter

    Design and Function Dry Filter The air supplied to the interstitial space is fed through a dry filter in the suction line. The dry filter dries the air to about 10 % relative hu- midity to avoid corrosion and condensation accumulation in the inter- stitial space.

  • Page 18: Overpressure Valve

    Design and Function 4.4.1 Devices with FC (dry filter monitoring)  Function There is a sensor installed in the pump suction line, between the pump and the dry filter, which measures the moisture in the air that is drawn in. The increase in relative humidity when the dry material has been used up is detected by the sensor.

  • Page 19: Displays And Controls

    Design and Function Displays and Controls 4.6.1 Display Indicator light OPERA- TION: green ALARM: FLASH- LED: yel- FLASH- low (red for DL 50 Not used or, with FC dry filter monitoring, the yellow and red LEDs to 450) flash alternately 4.6.2 "Turn off audible alarm signal"...
  • Page 20 Design and Function conditions (i.e., without external filling/evacuation, e.g., by an installa- tion pump) to achieve a valid statement.  This inquiry is recommended before performing a regular functional check of a leak detector. In this way, it is possible to estimate immedi- ately whether it is necessary to look for leaks.

  • Page 21: Mounting The System

    Mounting 5. Mounting the System Basic Instructions  Prior to commencing work, the documentation must be read and understood. In case of ambiguities, please ask the manufacturer.  Comply with the safety instructions in this documentation.  Only qualified service companies may be used for installation ...

  • Page 22: Requirements For Pneumatic Connection Lines (Between Leak Detector And Container)

    Mounting Requirements for Pneumatic Connection Lines (Between Leak Detector and Container) (1) Metal (generally Cu) or plastic pipes with a pressure resistance at least corresponding to the test pressure in the interstitial space. Also applies to fittings and screwed connections. Note tempera- ture range, especially when using plastic.

  • Page 23: Electrical Connection

    Mounting 5.5.3 Quick screw connections for PA tubing (1) Cut PA pipe to length at a right angle (2) Unfasten union nut and slide over the end of the pipe (3) Slide pipe onto nipple up to the beginning of the thread (4) Hand-tighten union nut (5) Wrench-tighten union nut until need for increased force is notice- able (approx.
  • Page 24 Mounting Terminal layout for DL 590 to DL 3000 100–240 V AC power connection 40/41 24 V DC power connection Occupied (with internal pump) External signal (24 V DC in case of alarm, can be turned off by activating the "Sound off" key) 11/12 Potential-free contacts (opened in case of alarm or loss of power) 12/13 Potential-free contacts (closed in case of alarm or loss of...

  • Page 25: Installation Examples And Block Diagrams

    Mounting Installation Examples and Block Diagrams 5.7.1 DL connected to an aboveground container (M1–060 000) Pressure line Overpressure pump Three-way valve in the pressure line Three-way valve in the measuring line Housing Measuring line Overpressure valve Dry filter Interstitial space Main board Pressure sensor PRESSURE LEAK DETECTOR DL ..
  • Page 26 Mounting 5.7.2 DL connected to multiple below-ground containers via a manifold (M2–060 000) Signal lamp "Alarm", red Shut-off valve Signal lamp "Operation", green Pressure line Three-way valve in the pressure line Three-way valve in the measuring line Measuring line Buzzer "Mute"...
  • Page 27 Mounting 5.7.3 Block diagram, DL 50 to DL 450 (P, M, and FC are options) 24.1 24.3 01.1 Signal lamp "Alarm", red Signal lamp "Operation", green Overpressure pump 24.1 "Power supply" fuse, 2 A 24.3 "External signal" fuse, 1 A Relay Buzzer "Mute"...
  • Page 28 Mounting 5.7.4 Block diagram, DL 590 to DL 3000 (P, M, and FC are options) 24.1 24.3 24.2 100-240V 24VDC 76.2 76.1 Signal lamp "Alarm", red Signal lamp "Operation", green Overpressure pump 24.1 "Power supply" fuse, 2 A 24.2 "Solenoid valve" fuse, 1.5 A 24.3 "External signal"...

  • Page 29: Commissioning

    Commissioning 6. Commissioning (1) Only perform commissioning once the steps in section 5 "Mount- ing" have been completed. (2) If a leak detector is placed into operation on a container that is already filled, special protective measures must be taken (for ex- ample, testing for the presence of gas in the leak detector and/or the interstitial space).

  • Page 30: Functional Check And Maintenance

    Functional Check and Maintenance 7. Functional Check and Maintenance General Information (1) If the leak detection system has been properly installed and is free of leaks, trouble-free operation can be assumed. (2) Frequent switching on or continuous running of the pump indi- cates leaks, which should be corrected within a reasonable time.
  • Page 31 Functional Check and Maintenance (2) Observe the safety instructions for working with the stored mate- rial (3) Regenerating or replacing the filter filling (4) Checking the free passage of air in the interstitial space (section 7.3.2) (5) Testing the switching values (section 7.3.3) (6) Checking the overpressure valve (section 7.3.4) (7) Tightness test (section 7.3.5) (8) Achieving the operating conditions (section 7.3.6)
  • Page 32 Functional Check and Maintenance 7.3.3 Testing the switching values 7.3.3.1 With testing device (1) Connect the testing device to the free connections on three-way valves 20 and 21. Turn three-way valve 20 90°counterclockwise and three-way valve 21 90° clockwise. (2) Connect the measuring gauge to the testing device. (3) Close needle valve (testing device);...
  • Page 33 Functional Check and Maintenance 7.3.4 Testing the overpressure valve For this test, the operating pressure of the leak detector must be built (1) Turn three-way valve 21 90° clockwise. The pressure sensor is vented. The pump switches on and the alarm is triggered. (2) Turn three-way valve 20 90°...
  • Page 34 Functional Check and Maintenance Interstitial space vol- Max. 1 mbar (0.015 psi) ume in liters pressure drop in 22 minutes 45 minutes 1000 1.50 hours 1500 2.25 hours 2000 3.00 hours 2500 3.75 hours 3000 4.50 hours 3500 5.25 hours 4000 6.00 hours (6) Once the test has been completed, return three-way valve 21 to...

  • Page 35: Alarm/Malfunction

    (2) Determine the cause for the alarm, fix it, and then perform a func- tional check for the leak detection system according to section 7.3. 9. Spare Parts See sgb-shop.com 10. Accessories See sgb-shop.com 11. Disassembly 11.1...

  • Page 36: Appendix

    Appendix 12. Appendix 12.1 Dimensions and Drilling Patterns 12.1.1 Plastic housing - 36 - PRESSURE LEAK DETECTOR DL .. 02/03/2020...
  • Page 37 Appendix 12.1.2 Stainless steel housing, "P" version Ø8,5 PRESSURE LEAK DETECTOR DL .. - 37 - 02/03/2020...

  • Page 38: Version 8S "Leak Detection Probes For Monitoring Access And Monitoring Chambers

    Appendix 12.2 Version 8S "Leak Detection Probes for Monitoring Access and Monitoring Chambers" 12.2.1 Object With the 8S version of the DL leak detector, it is possible to connect up to 8 leak detection probes. The probes have an explosion-proof design and can therefore be mounted in Zone 1 (e.g., in the access chamber).

  • Page 39: Eu Declaration Of Conformity

    Appendix 12.3 EU Declaration of Conformity SGB GmbH Hofstrasse 10 57076 Siegen, Germany, hereby declare in sole responsibility that the leak detector DL .. is in conformity with the essential requirements of the EU directives listed below. If the device is modified or used in a way that was not agreed with us, this declaration shall lose its validity.

  • Page 40: Declaration Of Performance (Dop)

    Class I pressure leak detector for monitoring double-walled, be- low-ground or above-ground, pressurized or non-pressurized tanks Manufacturer: SGB GmbH, Hofstraße 10, 57076 Siegen, Germany Tel.: +49 271 48964-0, e-mail: sgb@sgb.de Authorized representative: System for assessment and verification of constancy of performance:...

  • Page 41: Tüv-Nord Certifications

    Appendix 12.6 TÜV-Nord Certifications PRESSURE LEAK DETECTOR DL .. - 41 - 02/03/2020...
  • Page 42 Appendix - 42 - PRESSURE LEAK DETECTOR DL .. 02/03/2020...
  • Page 43 Appendix PRESSURE LEAK DETECTOR DL .. - 43 - 02/03/2020...
  • Page 44 SGB GmbH Hofstrasse 10 57076 Siegen Germany +49 271 48964-0 Photos and sketches are not binding for sgb@sgb.de the scope of delivery. Subject to change www.sgb.de without notice. © SGB GmbH, 03/2020 - 44 - PRESSURE LEAK DETECTOR DL .. 02/03/2020...

Table of Contents