Related Manuals for Ametek Magnetrol 3 Series
Summary of Contents for Ametek Magnetrol 3 Series
- Page 1 Series 3 Liquid Level Switches ASME B31.3 Construction Installation and Operating Manual...
- Page 2 In this manual, a warning indicates an assurance of product/service quality available. imminently hazardous situation which, if not avoided, could result in serious injury or death. Copyright © 2021 AMETEK Magnetrol USA, LLC. All rights reserved. Safety Messages Follow all standard industry procedures for servicing elec-...
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Page 3: Table Of Contents
Series 3 Liquid Level Switches ASME B31.3 Construction Table of Contents 1.0 Introduction 5.2.3 Actuating Levels, Steam Service Ratings 1.1 Principle of Operation ..........4 and Specific Gravities ........23 1.2 Operating Cycle ............4 5.3 Replacement Parts...........25 5.3.1 Sealed Cage Float Models B35, C35, 2.0 Installation G35, K35, L35, V35 and Z35 2.1 Unpacking ..............4... -
Page 4: Introduction
Introduction Magnetrol’s Series 3 level switches are float operated units suitable for use on clean liquid applications for level alarm, pump control and safety shutdown functions. Units are designed, fabricated and certified to compliance with Return spring ASME B31.3 specifications. Enclosing tube (non-magnetic) Magnet... -
Page 5: Critical Alarm Function
Critical larm Function It is recommended that for critical alarm functions, an additional level switch be installed as a high–high or low– low level alarm for maximum protection. Conduit outlet Piping Pressure vessel Figure 3 shows a typical piping installation of a Magnetrol Series 3 control to a pressure vessel. -
Page 6: Wiring
Controls should be mounted as close to the vessel as possible. This will result in a more responsive and accurate level change in the control. Liquid in a long line may be cooler and more dense than liquid in the vessel causing lower level indication in the control than actual level in the vessel. - Page 7 5. The switch terminals are located next to the conduit outlet to facilitate wiring. Bring supply wires through conduit outlet. Route extra wire around enclosing tube under the baffle plate, and connect them to the proper terminals. Refer to the wiring diagram in your switch bulletin for this information.
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Page 8: Switch Differential Adjustment
Switch Differential djustment The standard differential of Series 3 float models with one switch mechanism may be field-adjusted. Adjustment may be necessary if a wider differential needs to be set to overcome switch chatter caused by the process. The differential, or the amount of level travel between “switch-on”... -
Page 9: High Level Controls
NOTE: Level control, connections and pipe lines need not be removed from the tank. 6. Loosen enclosing tube nut with a ⁄ " wrench. Unscrew enclosing tube counterclockwise (switch and housing base Slight play (gap) Figure 6 will rotate also) until it is free. Refer to on page 8. -
Page 10: Preventive Maintenance
To widen the differential by raising the trip point, follow steps 1 through 16 in Low Level Controls, Section 3.1, pages 8–9). Caution: After increasing gap setting, be certain to check for proper operation of switch mechanism by raising and low- ering float assembly. -
Page 11: Proof Test Procedure
4. Vibration may sometimes cause terminal screws to loosen. Check all terminal connections to be certain that screws are tight. 5. On units with pneumatic switches, air (or gas) lines subjected to vibration, may eventually crack or loosen at connections causing leakage. Check lines and connections carefully and repair or replace, if necessary. -
Page 12: Control Head Removal And Installation
4.1.4 Control Head Removal and Installation Inspection of the interior of the chamber is possible on flanged cage models. To do this, the control head must be removed to provide proper access to the chamber. This procedure will assure that the head assembly is removed and reinstalled properly. - Page 13 8. Conduct a check for float stem straightness as follows: 8.1 Remove the stem assembly including attraction sleeve Top jam from the head assembly by removing the two screws Dim. A nuts Bottom jam holding the stop strap to the bottom of the flange. nuts Figure 10 for assembly schematic.
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Page 14: Troubleshooting
Troubleshooting Usually the first indication of improper operation is failure of the controlled equipment to function, i.e., pump will not start (or stop), signal lamps fail to light, etc. When these symptoms occur, whether at time of installation or during routine service thereafter, check the following potential external causes first: •... -
Page 15: Check Sensing Unit
4.2.2 Check Sensing Unit 1. Reconnect power supply. Carefully actuate the switch mechanism manually (use a non-conductive tool on elec- trical switch mechanisms) to determine whether controlled equipment will operate. Shutoff valve (if used) Conduit Caution: With electrical power on, avoid contact with switch leads outlet and connections at terminal block. -
Page 16: What To Avoid
Caution: Do not attempt to repair a float. See Replacement Parts, Section 5.3 beginning on page 25. If all components in the control are in operating condition, the trouble is likely located external to the control. Repeat inspection of external conditions previously described. NOTE: If difficulties are encountered which cannot be identified, consult the factory or your local representative for assistance. -
Page 17: Reference Information
Reference Information gency pprovals AgENCy APPROvED MODEL APPROvAL CLASSES Class I, Div 1, Groups C & D All with an electric switch mechanism and a housing Class II, Div 1, Groups E, F & G listed as TYPE 4X/7/9 Class I, Div 1, Groups B, C & D All with an electric switch mechanism and a housing listed as TYPE 4X/7/9 Class I, Div 1, Group B Class II, Div 1, Groups E, F &... -
Page 18: Specifications
Specifications 5.2.1 Dimensional Specifications — Sealed Cage Models NEMA 1: 8.50 (216) NEMA 4X/7/9: 10.12 (257) Group B: 10.12 (257) Plugged Plugged (Ref) (Ref) Figure 12 Threaded & Socket Weld Upper Side/Bottom Figure 13 Flanged Upper Side/Bottom Plugged Conduit Connections K Electrical Switches NEMA 4X/7/9: 1"... - Page 19 Specifications 5.2.1 Dimensional Specifications – Sealed Cage Models (cont.) Inches (mm) CHAMBERS WITH 1- INCH CONNECTIONS — 150 LB. AND 300 LB. ANSI CLASS 1" NPT Threaded & Socket Weld 1" Flanged Upper Side/Bottom 1" Flanged Side/Side Model Code Std. 14"...
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Page 20: Dimensional Specifications - Flanged Cage Models
Specifications 5.2.2 Dimensional Specifications — Flanged Cage Models NEMA 1: 8.50 (216) NEMA 4X/7/9: 10.12 (257) Plugged Group B: 10.12 (257) Plugged (Ref) (Ref) Figure 15 Threaded & Socket Weld Figure 16 Upper Side/Bottom Flanged Side/Side Conduit Connections K Plugged Electrical Switches NEMA 4X/7/9: 1"... - Page 21 Specifications 5.2.2 Dimensional Specifications – Flanged Cage Models (cont.) Inches (mm) CHAMBERS WITH 1-INCH CONNECTIONS 1" NPT Threaded 1" Flanged 1" Flanged Head & Socket Weld Upper Side/Bottom Side/Side Model Flg. Code Rating (lbs.) Std. 14" Std. 14" Std. 14" Std.
- Page 22 Specifications 5.2.2 Dimensional Specifications – Flanged Cage Models (cont.) Inches (mm) CHAMBERS WITH 2-INCH CONNECTIONS 2" NPT Threaded 2" Flanged 2" Flanged Head & Socket Weld Upper Side/Bottom Side/Side Model Flg. Code Rating (lbs.) Std. 14" Std. 14" Std. 14" Std.
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Page 23: Actuating Levels, Steam Service Ratings And Specific Gravities
Specifications 5.2.3 Actuating Levels* and Specific gravities For float operated units, minimum specific gravities and actuating levels vary depending upon the material of construction code used with the unit. NOTE: The minimum specific gravities and actuating levels shown are for single switch units with 1" process connections only. - Page 24 Specifications 5.2.3 Actuating Levels*, Steam Service Ratings and Specific gravities (cont.) Inches (mm) DISPLACER MODELS WITH 1-INCH PROCESS CONNECTIONS Liquid Specific gravity Process 0.40 0.50 0.60 0.70 0.80 0.90 1.00 Model Temp. °F Code (°C) 1.30 4.77 2.17 5.00 2.73 5.16 3.13 5.28...
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Page 25: Replacement Parts
Replacement Parts 5.3.1 Sealed Cage Float Models B35, C35, g35, K35, L35, v35 and Z35 Parts Identification Figure 18 Housing and Switch Mechanism Item Description Housing cover Housing base Switch mechanism Jam nuts (qty. 4) Washer Attraction sleeve Stop tube Enclosing tube ➀... -
Page 26: Sealed Cage Displacer Model B34
Replacement Parts 5.3.3 Sealed Cage Displacer Models B34 Parts Identification Item Description Housing cover Housing base Switch mechanism Jam nuts (qty. 5) Washer Attraction sleeve Stop tube Enclosing tube ➀ E-tube gasket Chamber assembly Figure 20 Sealed Cage Displacer Model B34 5.3.4 Sealed Cage Displacer Models B34 Part Numbers All models w/Material Code 1 All models w/Material Code 2... -
Page 27: Flanged Cage Displacer Model C34 Parts Identification
Replacement Parts 5.3.5 Flanged Cage Displacer Model C34 Parts Identification Item Description Housing cover Housing base Switch mechanism Jam nuts (qty. 5) Enclosing tube ➀ E-tube gasket Attraction sleeve Washer (qty. 3) Screws (qty. 3) Spring & stem assembly Displacer assembly Retainer Washer Cotter pin (qty. -
Page 28: Flanged Cage Float Models B3F, G3F K3F And Z3F W/Material Code 1 Parts Identification
Replacement Parts 5.3.7 Flanged Cage Float Models B3F, g3F, K3F and Z3F w/Material Code 1 Parts Identification Item Description Housing cover Housing base Switch mechanism Enclosing tube ➀ E-tube gasket Jam nuts (qty. 4) Washer (qty. 2) Attraction sleeve Stop tube Stop strap Screws (qty. -
Page 29: Flanged Cage Float Models B3F, G3F, K3F And Z3F W/Material Code 2 & N Parts Identification
Replacement Parts 5.3.9 Flanged Cage Float Models B3F, g3F, K3F and Z3F w/Material Codes 2 & N Parts Identification Item Description Housing cover Housing base Switch mechanism Enclosing tube ➀ E-tube gasket Jam nuts (qty. 4) Washer (qty. 2) Attraction sleeve Stop tube Stop strap Screws (qty. -
Page 30: Model Numbers
Model Numbers 5.4.1 Sealed Cage Models MODEL NUMBER CODE Min. S.g. for Models Pressure Rating Model with Material of Construction Code ➁ Code ➀ psig @ °F bar @ °C 1000 FLOAT MODELS 0.69 0.72 1000 68.9 60.3 55.5 54.8 29.5 12.5 0.57... - Page 31 Model Numbers 5.4.1 Sealed Cage Models (cont.) ELECTRIC SWITCH MECHANISM AND ENCLOSURE Models B35, C35, K35 & L35 Models B34, v35, Z35 & all models Process ➇ with Material of Construction Code 1 with Material of Construction Code 2 Temperature Switch TyPE 4X/7/9 Aluminum Enclosure Contacts...
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Page 32: Flanged Cage Models
Model Numbers 5.4.2 Flanged Cage Models ➁ Min. S.g. for Models Pressure Rating Head Model with Material of Flange Code psig @ °F bar @ °C Construction Code ➀ ANSI Class 2 or N 1000 FLOAT MODELS 150# 0.78 0.83 19.6 10.7 300#... - Page 33 Model Numbers 5.4.2 Flanged Cage Models (cont.) ELECTRIC SWITCH MECHANISM AND ENCLOSURE All models C34 and all models All models C34 and all models with with Material of Construction Code 1 Material of Construction Codes 2 & N Process ➉ except B3F, g3F, K3F &...
- Page 34 NOTES: 46-622 Series 3 Liquid Level Switches ASME B31.3 Construction...
- Page 35 NOTES: 46-622 Series 3 Liquid Level Switches ASME B31.3 Construction...
- Page 36 705 Enterprise Street • Aurora, Illinois 60504-8149 USA BULLETIN: 46-622.17 630.969.4000 • info.magnetrol@ametek.com • magnetrol.com EFFECTIvE: August 2021 Copyright © 2021 AMETEK Magnetrol USA, LLC SUPERSEDES: August 2017 CSA logotype is a registered trademark of Canadian Standards Association...