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- Page 1 Process Level Technology, Ltd. MAG-GAGE ® INSTALLATION, OPERATION AND MAINTENANCE MANUAL 888 CLEAR CREEK AVE LEAGUE CITY, TEXAS 77573 Phone # (281) 332-MAG1(6241) Fax # (281) 332-0232 WWW.MAG-GAGE.COM PLT MAG-GAGE Revision 06...
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Page 2: Table Of Contents
Process Level Technology, Ltd. MAG-GAGE ® Process Level Technology, Ltd. Installation, Operation and Maintenance Instructions Contents Section 2.1.0. Magnetic Level Gages MAG-GAGE®” “ 2.1.0. Description 2.1.1. Introduction 2.1.2. Components 2.1.3. Chamber Material 2.1.4. Internal Float 2.1.5. Float Submergence 2.1.6. Gage ratings 2.1.7. -
Page 3: Introduction
Process Level Technology, Ltd. MAG-GAGE ® Process Level Technology, Ltd. Installation, Operation and Maintenance Instructions Contents Section 2.0.0. Magnetic Level Gages (cont.) 2.6.0. Maintenance 2.6.1. Introduction 2.6.2. Procedures 2.7.0. Troubleshooting 2.7.1. Introduction 2.7.2. Float & Indicator Detachment 2.7.3. Differential Level 2.7.4. - Page 4 Process Level Technology, Ltd. MAG-GAGE ® Process Level Technology, Ltd. Installation, Operation and Maintenance Instructions Contents Section 3.0.0. Pneumatic Level Control 3.1.0. Non Bleed, Block & Bleed Switches – MGS-100 3.1.1. Introduction 3.1.2. Operating Specifications 3.1.3. Installation Procedures 3.1.4. Operation & Maintenance 3.2.0.
- Page 5 Process Level Technology, Ltd. MAG-GAGE ® 4.3.0. Electric Switches – MGS700EX(/2) MGS-900EX(/2) Introduction 4.3.1. Specification 4.3.2. Mounting 4.3.3. Operation 4.3.4. Electrical Wiring-Rising Level 4.3.5. Electrical Wiring-Falling Level 4.3.6. OPS-001 Revision 6 Page 5 of 30 December 17, 2018...
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Page 6: Components
Section 2.1.0. - Description 2.1.1. INTRODUCTION Process Level Technology, Ltd magnetic level gages (MAG-GAGE®) are an indirect reading liquid level indicator. The magnetic level gage series utilize non-magnetic 2.00-inch, schedule 40 chambers (standard) manufactured to length specifications with process connections that match those of the vessel or tank. For some high pressure, low gravity applications, a 3.00-inch schedule 40 chamber is available. -
Page 7: Internal Float
Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.1.0. – Description 2.1.4. INTERNAL FLOAT A magnetized float is contained inside the float chamber and is designed to the requirements of the process conditions. For this reason floats are not interchangeable unless the process conditions and gage chambers are identical. -
Page 8: Level Indication
Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.2.0. - Level Indication 2.2.1. INTRODUCTION There are two types of external level indication options offered by Process Level Technology, Ltd. for magnetic level gages. The single indicator (ST)/(SST) is recommended for stagnant storage level applications with little or no level fluctuations. -
Page 9: Flag/Flipper Indication - Reference Guide
Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.2.0. - Level Indication (cont.) 2.2.4. WIDE FLAG/FLIPPER INDICTION (WF),(SWF) Process Level Technology offers a continuous Wide Flag or Flipper style indicator as an option to the Single Yellow Follower indicator. -
Page 10: Installation
Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.3.0. - Installation 2.3.1. INSPECTION All magnetic level indicators are securely packed in crates to provide maximum protection of the equipment during shipment. It is important to unpack and inspect each gage upon receipt to insure the indicator and chamber were not damaged in shipment. -
Page 11: Chamber Gaskets
Process connections and vent/drain flanges are designed to meet each customer's specifications. All flange boltholes straddle the centerline unless otherwise specified. Both male and female threaded connections and socket weld connections are available. DO NOT WELD ON MAG-GAGE OR ON THE VESSEL WITH INDICATOR AND FLOAT INSTALLED, THIS WILL DESTROY THE MAGETIC CIRCUIT. -
Page 12: Operation
Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.4.0. - Operation 2.4.1. INTRODUCTION It is important that all instructions pertaining to entering magnetic level gages into service be read thoroughly first before commencing with service operations. Failure to do so may void the warranty by subjecting the gage to a potential safety hazard. - Page 13 (and float) may readjust and fall slightly from the effects of final process equalization after the bottom valve is completely opened. Extended Storage: All MAG-GAGE® magnetic level gages and gage accessories not put in service shall be stored inside in the original creates...
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Page 14: Introduction
Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.5.0. - Removal from Service 2.5.1. INTRODUCTION To remove the gage from service, the next steps should be followed to prevent danger to personnel and damage to the gage when the vessel is pressurized. -
Page 15: Introduction
Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.6.0. - Maintenance 2.6.1. INTRODUCTION Process Level Technology, Ltd. magnetic level gages contain a standard 0.50 inch vent and drain plug in the top and bottom of the gage chamber to allow cleaning and removal of the process fluid if required. Socket weld vent and drain valve connections are available. - Page 16 Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.6.0. - Maintenance 2.6.2. PROCEDURES (cont.) 8. Check the stainless steel pipe clamps to insure they are tight and adjust the scale channel. Correctly match the zero point to process connection elevations.
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Page 17: Float & Indicator Detachment
Process Level Technology, Ltd. MAG-GAGE ® Magnetic Level Gages Installation, Operation and Maintenance Instructions Section 2.7.0. - Troubleshooting 2.7.1. INTRODUCTION Process Level Technology, Ltd. magnetic level gages are simple to install and operate. The following troubleshooting tips may be of assistance during installation and startup. Complete reading of this is required. -
Page 18: Defective Indicator
Process Level Technology, Ltd. MAG-GAGE ® Installation, Operation and Maintenance Instructions Section 2.7.0. - Troubleshooting (cont.) 2.7.4. DEFECTIVE INDICATOR If the glass indicator cover is cracked or broken, a replacement cover can be shipped within 24 hours after receipt of order. One advantage of the magnetic level gage is the indicator assembly can be serviced without removing the gage chamber from service. -
Page 19: Introduction
Installation, Operation and Maintenance Instructions Section 2.8.0. - Parts List 2.8.1. INTRODUCTION When ordering spare parts for the MAG-GAGE® series magnetic level gage, the following information will be required Serial number of the gage or accessory item. Description of parts to be ordered. -
Page 20: Introduction
Field service rates can be supplied upon request. If the product is believed to be defective, the original purchaser shall notify PLT and request a Return Material Authorization Form before returning the material to PLT, with transportation prepaid by the purchaser. The product, with repaired or replaced parts, shall be returned to the purchaser at any point in the world with transportation prepaid by PLT for best-way transportation only. -
Page 21: Terms
Process Level Technology, Ltd. MAG-GAGE ® Installation, Operation and Maintenance Instructions Section 2.10.0. - Terms and Condition of Sale 2.10.1. INTRODUCTION All orders should be entered to the following address: Process Level Technology, Ltd. 888 Clear Creek Ave. League City, Texas 77573 PH# (281) 332-MAG1(6241), Fax# (281) 332-0232 2.10.2. -
Page 22: Operating Specifications
Section 3.1.0. - Non Bleed, Block & Bleed Switches (MGS-100) 3.1.1. INTRODUCTION MGS-100 pneumatic switches are designed for use on magnetic MAG-GAGE® series gages only. The MGS-100 is a non-bleed, block and bleed pneumatic switch operates when the magnetic field of a Process Level Technology, Ltd. -
Page 23: Operation & Maintenance
Process Level Technology, Ltd. MAG-GAGE ® Installation, Operation and Maintenance Instructions Section 3.1.0. - Non Bleed, Block & Bleed Switches MGS-100 3.1.4. INSTALLATION - (cont.) The alarm switch should be mounted so that it is level with the ground. If it is not level, loosen the hose clamps, adjust the switch's alignment, and when the switch is level, retighten the hose clamps. -
Page 24: Pneumatic Level Controller - Lcp
The LCP Pneumatic Level Switch Controller provides supply and vent air control for two pneumatic switches used in a high and low point level application. The LCP is designed to be used with pneumatic switches on magnetic MAG-GAGE® series gages only. 3.2.2. OPERATION As the float rises past the high pneumatic switch level, it will supply air to the port P4 of the controller. -
Page 25: Introduction
The MGS-200EX and MGS-200EX2 are hermetically sealed bistable-latching switches designed for magnetic MAG-GAGE® series gages only. The MGS-200EX has single pole double throw contacts (SPDT) and the MGS- 200EX2 has double pole, double throw contacts (DPDT). The switch will change state when the float passes by it in a rising or falling level condition. -
Page 26: Electrical Wiring - Rising Level
Process Level Technology, Ltd. MAG-GAGE ® Section 4.3.0. – Electric Level Switches (MGS-200EX/MGS-200EX2) Caution: If there is a need to take the switch out of service or disconnect it for any reason, then make the sure the circuit is de-energized. -
Page 27: Specifications
The MGS-500EX and MGS-500EX2 are hermetically sealed bistable-latching switches designed for magnetic MAG-GAGE® series gages only. The MGS-500EX has single pole double throw contacts (SPDT) and the MGS- 500EX2 has double pole, double throw contacts (DPDT). The switch will change state when the float passes by it in a rising or falling level condition. - Page 28 Process Level Technology, Ltd. MAG-GAGE ® Section 4.2.0. – Electric Level Switches (MGS-500EX/MGS-500EX2) Caution: If there is a need to take the switch out of service or disconnect it for any reason, then make the sure the circuit is de-energized.
- Page 29 4.3.3 MOUNTING The MGS-700EX/900EX,(/2) is mounted to the MAG-GAGE® chamber with all 316 Stainless Steel worm gear pipe clamps. The switch must be mounted with TOP facing up. Rod mounted switch assemblies are available as a factory installed option. Switch points can be changed at any time by loosening the clamps and sliding the switch vertically to the desired set point.
- Page 30 Process Level Technology, Ltd. MAG-GAGE ® Section 4.3.0. – Electric Level Switches (MGS-700EX(/2), MGS-900EX2(/2)) Caution: If there is a need to take the switch out of service or disconnect it for any reason, then make the sure the circuit is de-energized.
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