Emerson PENBERTHY MGS-314L Series Installation, Operation And Maintenance Instructions
Emerson PENBERTHY MGS-314L Series Installation, Operation And Maintenance Instructions

Emerson PENBERTHY MGS-314L Series Installation, Operation And Maintenance Instructions

Level control switch

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PENBERTHY MODEL MGS-314L SERIES LEVEL CONTROL SWITCH
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
Before installation, these instructions must be carefully read and understood.

TABLE OF CONTENTS

Product Warranty .......................................... 1
1. Introduction ................................................... 1
2. Specifications/Approvals .............................. 2
2.1 2.1 Enclosure .......................................... 2
2.2 Switch ...................................................... 2
2.3 Approvals ................................................ 2
3. Theory of Operation ....................................... 2
4. Installation ..................................................... 3
4.1 Unpacking ............................................... 3
4.2 Mounting the switch ............................... 3
4.3 Wiring connection................................... 3
5. Set-up ............................................................. 4
5.1 Initial test ................................................ 4
6. Troubleshooting ............................................ 4
6.1 Introduction ............................................ 4
6.2 Switch test .............................................. 4
7. Disposal at End of Useful Life ...................... 4
8. Telephone Assistance ................................... 4
Emerson.com/FinalControl
Tables and Figures
Table 1
Wire conditions at different
switch orientations .......................... 4
Figure 1
MGS-314L switch positions ............ 2
Figure 2
Control drawing CSA approved
explosion-proof for
MGS-314L (7E741-008) ................... 5
Figure 3
Control drawing CSA approved
intrinsically safe for
MGS-314L (7E742-008) ................... 6
Figure 4
Control drawing ATEX/
IECEx certified explosion-proof
for MGS-314L (7E741-010) ............. 7
Figure 5
Control drawing ATEX/
IECEx certified intrinsically safe
for MGS-314L (7E741-010) ............. 8

PRODUCT WARRANTY

Emerson warrants its products as designed
and manufactured to be free of defects in
material and workmanship for a period of one
year after the date of installation or eighteen
months after date of manufacture, whichever
is earliest. Emerson will, at its option, replace
or repair any products which fail during the
warranty period due to defective material or
workmanship.
Prior to submitting any claim for warranty
service, the owner must submit proof of
purchase to Emerson and obtain written
authorization to return the product. Thereafter,
the product shall be returned to Emerson, with
freight prepaid.
This warranty shall not apply if the product has
been disassembled, tampered with, repaired
or altered outside of the Emerson factory, or
if it has been subjected to misuse, neglect or
accident.
© 2019 Emerson. All Rights Reserved.
Emerson's responsibility hereunder is limited
to repairing or replacing the product at its
expense.
Emerson shall not be liable for loss, damage,
or expenses directly or indirectly related to the
installation or use of its products, or from any
other cause or for consequential damages. It
is expressly understood that Emerson is not
responsible for damage or injury caused to
other products, building, property or persons,
by reason of the installation or use of its
products.
This is Emerson's sole warranty and in lieu of
all other warranties, expressed or implied which
are hereby excluded, including in particular all
warranties of merchantability or fitness for a
particular purpose.
This document and the warranty contained
herein may not be modified and no other
warranty, expressed or implied, shall be made
by or on behalf of Emerson unless modified or
made in writing and signed by the company's
president or a vice president.

1 INTRODUCTION

The instructions in this manual pertain to the
Penberthy Model MGS-314L Series magnetic
level gauge switch.
The Model MGS-314L Series magnetic level
gauge switch is designed to detect the passage
of the float in a Multiview™ magnetic liquid
level gauge, at a specific location. The switch
consists of a bi-stable latching reed switch
encased in a watertight enclosure.
VCIOM-03389-EN 20/04

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Summary of Contents for Emerson PENBERTHY MGS-314L Series

  • Page 1: Table Of Contents

    MGS-314L (7E741-010) ..... 7 Figure 5 Control drawing ATEX/ This is Emerson's sole warranty and in lieu of IECEx certified intrinsically safe all other warranties, expressed or implied which for MGS-314L (7E741-010) ..... 8 are hereby excluded, including in particular all...
  • Page 2: Specifications/Approvals

    PENBERTHY MODEL MGS-314L SERIES LEVEL CONTROL SWITCH INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS 2 SPECIFICATIONS/APPROVALS 2.1 Enclosure Watertight (Type 4) and Explosion-Proof (Type 7) 316 STS housing 2.2 Switch Output: MGS-314L Series: SPDT (Form C) switch output: 1 AMP Maximum Switching Current, 150 VDC Maximum Switching Voltage non-inductive load, 25 Watts - Maximum power Repeatability: Better than 0.032"...
  • Page 3: Installation

    PENBERTHY MODEL MGS-314L SERIES LEVEL CONTROL SWITCH INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS 4 INSTALLATION 4.3 Wiring connection 1. If you are using conduit for the switch wiring 4.1 Unpacking use conduit seal with a drain or a drip-loop Upon receiving the Model MGS-314L Series to prevent condensate from entering the magnetic level gauge switch, check all housing.
  • Page 4: Set-Up

    You must obtain a return authorization (R.A.) number from 7 DISPOSAL AT END OF USEFUL LIFE Emerson prior to returning your unit. Failure to do so will result in the unit being Penberthy Model MGS-314L Series level...
  • Page 5: Mgs-314L (7E741-008)

    PENBERTHY MODEL MGS-314L SERIES LEVEL CONTROL SWITCH INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS FIGURE 2 Control drawing CSA approved explosion-proof for MGS-314L (7E741-008) CONTROL DRAWING Hazardous area Non-hazardous area CLASS I DIV I GROUP B, C, D MGS-314-C MGS-314D-C MGS-314L-C 18" A flame path seal-off shall be installed within 18 in.
  • Page 6: Mgs-314L (7E742-008)

    PENBERTHY MODEL MGS-314L SERIES LEVEL CONTROL SWITCH INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS FIGURE 3 Control drawing CSA approved intrinsically safe for MGS-314L (7E742-008) TWO-WIRE ENTITY CONTROL DRAWING Hazardous area Non-hazardous area Use CSA certified safety barriers: Unused NO or NC lead shall be blind terminated and insulated. rated for Class I DIV 1 Group A, B, C, D The intrinsic safety barrier parameters must meet the following...
  • Page 7 PENBERTHY MODEL MGS-314L SERIES LEVEL CONTROL SWITCH INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS FIGURE 4 Control drawing ATEX/IECEx certified explosion-proof for MGS-314L (7E741-010) CONTROL DRAWING Hazardous area Non-hazardous area EX D IIB MGS-314-A MGS-314D-A MGS-314L-A A flame path seal-off shall be installed directly to threaded entry of enclosure Wiring to be in accordance with National Electrical Code (NEC) Pertinent parts of the 500 Series of Article 5 or local codes as applicable.
  • Page 8 PENBERTHY MODEL MGS-314L SERIES LEVEL CONTROL SWITCH INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS FIGURE 5 Control drawing ATEX/IECEx certified intrinsically safe for MGS-314L (7E742-010) TWO-WIRE ENTITY CONTROL DRAWING Hazardous area Non-hazardous area Unused NO or NC lead shall be blind terminated and insulated. Use suitably certified safety barriers for Ex iα...
  • Page 9 Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Penberthy is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co.

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