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5

PENBERTHY 

MODEL MGS-314L SERIES LEVEL CONTROL SWITCH

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

MGS-314-C

MGS-314D-C

MGS-314L-C

CLASS I DIV I GROUP B, C, D

CONTROL DRAWING

Hazardous area

Non-hazardous area

A flame path seal-off shall be installed 

within 18 in. 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.

FIGURE 2
Control drawing CSA approved explosion-proof for MGS-314L (7E741-008)

18"

Содержание PENBERTHY MGS-314L Series

Страница 1: ...epairing 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 u...

Страница 2: ...rawing 7E742 008 Figure 3 MGS 314L A ATEX and IECEx approved by CSA Flame proof for Ex db IIB T5 Gb 1 A Max or 150Vdc Max Must use suitably certified minimum Ex db IIB conduit seal When installed in accordance with control drawing 7E741 010 Figure 4 MGS 314L A ATEX and IECEx approved by CSA Intrinsically safe for Ex ia IIC T5 Ga When installed in accordance with control drawing 7E742 010 Figure 5 ...

Страница 3: ...he indication range This will insure sufficient float movement to operate the switch 7 If more than one switch is used on a single magnetic gauge the minimum recommended distance between mounting bands is 2 inches 51 mm 8 Adjust the position of the indicating scale so that the distance from the tip of the scale to the top of the communicating chamber is the same as in step 1 Tighten the clamps hol...

Страница 4: ... occur Sound maintenance practices require periodic inspection of the instrument to ensure it is in good working order SAFETY INSTRUCTIONS Do not apply power to the switch while performing these tests 6 2 Switch test With the switch at position A use an ohmmeter to verify the conditions in Section 5 1 Using a magnet move the switch to position B If the switch still doesn t change state it is defec...

Страница 5: ...IV I GROUP B C D CONTROL DRAWING Hazardous area Non hazardous area A flame path seal off shall be installed within 18 in 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 FIGURE 2 Control drawing CSA approved explosion proof for MGS 314L 7E741 008 18 ...

Страница 6: ...sc 150mA Ca Cleads La Lleads THREE WIRE ENTITY CONTROL DRAWING Non hazardous area Hazardous area User wiring INTRINSIC SAFETY BARRIER MULTIPLE CHANNEL Cleads Lleads Use CSA certified safety barriers rated for Class I DIV 1 Group A B C D One multiple channel intrinsic safety barrier must be used The barrier parameters must meet the following requirements Vt 40V or It 150mA Ca Cleads La Lleads MODEL...

Страница 7: ...us area 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 FIGURE 4 Control drawing ATEX IECEx certified explosion proof for MGS 314L 7E741 010 MGS 314 A MGS 314D A MGS 314L A EX D IIB ...

Страница 8: ...oc 40V or Isc 150mA Ca Cleads La Lleads One multiple channel intrinsic safety barrier must be used The barrier parameters must meet the following requirements Vt 40V or It 150mA Ca Cleads La Lleads Installation shall confirm to the manufacturer s instructions supplied with the intrinsic safety barrier as well as the National Electric Code and ANSI ISA RP 12 6 or CSA C22 Installation of intrinsical...

Страница 9: ...rson logo are trademarks and service marks of Emerson Electric Co All other marks are the property of their respective owners The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or th...

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