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Installation, Operation &
Maintenance Instruction
Models: Pulsa, Pulsar, PulsaPro
DEMKO 12 ATEX 1204081X
II 2 G Ex d IIB T5 Gb
II 2 D Ex tb IIIC T100°C Db IP66
IECEx UL 14.0118X
Ex d IIB T5 Gb
Ex tb IIIC T100°C Db IP66
Bulletin: IOM-PUL-1007 Rev E
THIS DOCUMENT CONTAINS CHARACTERISTICS CONTROLLED BY U.L. FILE # E186527; CHANGES REQUIRE AGENCY
APPROVAL.
PULSAlarm
LEAK DETECTION
®
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Summary of Contents for Pulsafeeder PULSAlarm Pulsa
- Page 1 Installation, Operation & Maintenance Instruction Models: Pulsa, Pulsar, PulsaPro DEMKO 12 ATEX 1204081X II 2 G Ex d IIB T5 Gb II 2 D Ex tb IIIC T100°C Db IP66 IECEx UL 14.0118X Ex d IIB T5 Gb Ex tb IIIC T100°C Db IP66 ®...
- Page 2 Should you experience a problem with your Pulsafeeder pump, first consult the troubleshooting guide in your pump operation and maintenance manual. If the problem is not covered or cannot be solved, please contact your local Pulsafeeder Sales Representative or Pulsafeeder Technical Service Department for further assistance.
- Page 3 Notice Information and specifications in this document are subject to change without notice. Trademarks Pulsa Series ® and PULSAlarm® are registered trademarks of Pulsafeeder, Inc. Revision History Revision Implemented Revision...
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Page 4: Table Of Contents
Table of Contents Contents 1.0 Conventions ........................5 2.0 Introduction ......................... 6 3.0 Foreword ..........................6 4.0 ATEX / IECEx Nameplate and Marking ................7 5.0 Description and Theory of Operation ................. 9 PULSAlarm® Reagent Head ..................10 PULSAlarm® Leak Detection Diaphragm ..............10 Diaphragm Construction ..................... -
Page 5: Conventions
The information in this bulletin pertains only to the PULSAlarm® ® leak detection system supplied as an option on Pulsafeeder PULSA/PULSAR Series pumps Tips have been included within this bulletin to help the operator run the equipment in the most efficient manner possible. -
Page 6: Introduction
Equipment with special manufacturing or constructive variances may differ in details with respect to this description. In case of any difficulty, please contact PULSAFEEDER, INC. Technical Service. The PULSAlarm® is rated for NEMA 7 locations as identified on the nameplate. -
Page 7: Atex / Iecex Nameplate And Marking
4.0 ATEX / IECEx Nameplate and Marking All pumps bear a standard rating nameplate on which it is possible to read, apart from functional data, all data required for universal identification. Conduit connections Conduit connections can carry fluids and vapors into the PULSAlarm® causing damage and void the warranty. - Page 8 The PULSAlarm® is provided with a nameplate with specific markings of data required by the directive: Agency certificate number and ratings ATEX Marking IECEx Marking I – Notified body for Quality System I – Explosive atmosphere II – Protection Methods – flameproof II –...
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Page 9: Description And Theory Of Operation
Liquids of higher viscosity will extend the time required to properly prime the system. Thinner liquids will allow for faster setup. NOTE: Pulsafeeder supplies as standard low viscosity silicone oil. System identification is noted on the switch cover nameplate, and also on your... -
Page 10: Pulsalarm® Reagent Head
PULSAlarm® Reagent Head The PULSAlarm® leak detection reagent head assembly consists of reagent head, leak detection diaphragm, suction and discharge check valves, bleed port, and optional switch and gauge. The reagent head, diaphragm, suction and discharge check valves are the only parts of the pump to contact the process liquid;... -
Page 11: Diaphragm Construction
Diaphragm Construction The adhesive rings aid in assembly and are not present for sealing purposes. Capillary tube Process side PTFE layer Adhesive ring Support ring Hydraulic side PTFE layer Adhesive ring Figure 2 – diaphragm construction... -
Page 12: Electrical
6.0 Electrical Figure 3 – switch and housing If equipped with an optional pressure switch, install electrical wiring and conduit in accordance with local electrical codes. The switch is rated as follows: 30 VDC or 125 VAC 1 Ampere Resistive. Electrical Connections Do not make any electrical connections (high or low voltage) without adequately grounding the PULSAlarm®... -
Page 13: Setup For Pressure
7.0 Setup for Pressure Pumps incorporating pressure leak detection are shipped from the factory with the system fully set up to work at full pump pressure. No further setup is required. The standard factory barrier fluid is silicone oil, if any other customer-specified media is used it must be compatible with construction materials. - Page 14 Complete re-assembly of the diaphragm, reagent head, and external components if they were taken apart. Ensure that reagent head and tie-bar bolts are tightened according to the appropriate torque specifications Remove the pressure gauge from the housing body and replace it with a straight tubing adaptor fitting.
- Page 15 Connect a hand pump to the fitting on the outlet side of the system, and apply vacuum, which serves to pull the barrier fluid through the system. Attach the incoming barrier fluid supply under pressure to the inlet side and verify that the needle valve is open.
- Page 16 7.13 In order to fully balance and evacuate the leak detection system, the pump must now run at normal discharge pressure for a period of about 30 minutes to one hour. This ensures that excess barrier fluid is fully evacuated from the system. 7.14 Supply either process fluid, or test fluid (i.e.
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Page 17: Pressure Fill Chamber
8.0 Pressure fill chamber Under certain conditions, when barrier fluids other than water are used, a pressure chamber can be fabricated from readily available fittings that allow the barrier fluid to be fed under pressure to the inlet of the system. Users may wish to fabricate a device based upon this sketch which will aid in the setup of the pressure-based system. - Page 18 • Connect a vacuum pump to the top fitting of the fluid fill device. Open BOTH valves on the device. • Place the lower fill tube into the container of the barrier fluid • Using the vacuum function, use the hand pump to draw several ounces of fluid up into the fill device.
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Page 19: Maintenance
Maintenance Switch Setpoint Adjustment If the optional switch is purchased, the standard pressure switch is set to actuate at 20 psig. Use the following procedure to perform a pressure setpoint adjustment: 1. Disconnect the alarm circuit from the vacuum switch. 2. -
Page 20: Pulsalarm® Diaphragm Maintenance
10.0 PULSAlarm® Diaphragm Maintenance After diaphragm failure, pressurized process fluid can be present in any part of the PULSAlarm® ® leak detection vacuum system. Take appropriate precautions and handle with care. Figure 10 – diaphragm and head orientation 11.0 PULSAlarm® Diaphragm Removal Use the following procedure to remove the Leak Detection Diaphragm: 1. -
Page 21: Inspection
• After diaphragm set-up and priming, the pump is ready to be returned to service. 12.2 Leak Detection system conversion Leak detection system conversion information can be found in Bulletin CV-LD-0203 (vacuum to pressure system). For further conversion information and kits, please contact your local Pulsafeeder sales representative. - Page 22 ® PULSAlarm LEAK DETECTION A unit of IDEX Corporation 2883 Brighton Henrietta Town Line Road Rochester NY 14623 +1 (585) 292-8000 pulsa.com pulsa@idexcorp.com...
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