Robertshaw 365A Instruction Manual
Robertshaw 365A Instruction Manual

Robertshaw 365A Instruction Manual

Vibraswitch malfunction detector
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INSTRUCTION MANUAL
VIBRASWITCH® MALFUNCTION DETECTOR
MODEL 365A
MODEL E365A
ROBERTSHAW INDUSTRIAL PRODUCTS
909GF294
1602 Mustang Drive
Maryville, TN 37801
Revision F
Telephone 865-981-3100
Fax 865-981-3168
8 January 2008

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Summary of Contents for Robertshaw 365A

  • Page 1 INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR MODEL 365A MODEL E365A ROBERTSHAW INDUSTRIAL PRODUCTS 909GF294 1602 Mustang Drive Maryville, TN 37801 Revision F Telephone 865-981-3100 Fax 865-981-3168 8 January 2008...
  • Page 2 MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 CAUTION NO CHANGES WITHOUT AGENCY APPROVAL ATEX (DEMCO) VIA UL HAZARDOUS LOCATIONS GROUP. RECORD OF CHANGES Design Engineering Engineer’s Manager’s Approval Revision Approval Approval Date Number Brief Description Added “CAUTION” note P.
  • Page 3: Table Of Contents

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 TABLE OF CONTENTS DESCRIPTION ..........................1 GENERAL ............................. 1 MODEL IDENTIFICATION....................... 2 SPECIFICATIONS ........................3 ENVIRONMENTAL........................3 CE PRODUCT CERTIFICATION ..................... 3 ELECTRICAL..........................3 PERFORMANCE ......................... 4 INSTALLATION .......................... 5 GENERAL .............................
  • Page 4 VIBRASWITCH®, MODEL 365A ......9 PREPARATION OF CONDUIT WIRING ................ 10 CONNECTION OF CONDUIT WIRING TO UNIT ............10 OPERATING PRINCIPLE FOR THE VIBRASWITCH®, MODEL 365A......11 SETPOINT ADJUSTMENT ...................... 12 SUGGESTED SETTINGS WHEN “NORMAL” g-LEVEL IS >1.0 g ........14 PAGE ii...
  • Page 5: Description

    PLC’s. Up to a total of eight (8) Model 365A & E365A can be used in conjunction with the Robertshaw Model 563A Vibraswitch® Monitor to provide startup and monitor delays for a single machine being monitored.
  • Page 6: Model Identification

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 MODEL IDENTIFICATION 365A – A – 4 – H Table A – Key Model Numbers Table 1 – Switch Contacts Table 2 – Remote Option Reset Table 3 – Enclosure Finish Table A –...
  • Page 7: Specifications

    Vibraswitch® models with CE (ATEX) Approval are distinguished by the addition of the CE mark on the Nameplate. The nameplate includes additional information: Robertshaw Industrial Products, 1602 Mustang Drive, Maryville, TN 37801 = manufacturer’s name and address E365A = the manufacturer’s Model Number...
  • Page 8: Performance

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 Gold Contact rating: DPDT (Table 1 – Designation “G”) 0.1 A max, 125-250 VAC, non-inductive; 0.1 A max, 30 VDC, non-inductive; 1 mA min, 24 VDC, non-inductive; 2 mA min, 12 VDC, non-inductive;...
  • Page 9: Installation

    Examine the Vibraswitch® for possible shipping damages. IMPORTANT: If for any reason it is determined that the equipment should be returned to the factory, please notify the nearest Robertshaw Sales representative prior to shipment. Each unit must be properly packaged to prevent damage.
  • Page 10: Space Heater

    2,200 WIRING The Vibraswitch® Model 365A & E365A is equipped with a threaded hub for ¾” conduit. When the vibration amplitude is large (ie, greater than 5 mils) it is good practice to use a short length of flexible conduit to serve as an isolator between the rigid conduit and the Vibraswitch®. Wiring into the unit should be done with #18 stranded wire, although #14 can be used where necessary.
  • Page 11: Model Identification & Mounting Details

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 Figure 3.1 – Model Identification & Mounting Details PAGE 7...
  • Page 12: Connections

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 Figure 3.2 – Connections PAGE 8...
  • Page 13: Methods Of Mounting The

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 Figure 3-3. Methods of Mounting the Vibraswitch®, Model 365A PAGE 9...
  • Page 14: Preparation Of Conduit Wiring

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 To avoid unnecessary difficulty in wiring the unit, the following recommended procedure should be used: • Wires should be trimmed to project beyond the cover mating surface of the enclosure base by approximately 1 ½”.
  • Page 15: Operation

    4 OPERATION GENERAL The Model 365A & E365AVibraswitch® (Ref. Figure 4-1) is sensitive to vibration in a direction (the sensitive axis) perpendicular to its mounting base. It contains an acceleration sensitive mechanism, which also functions as a “mechanical amplifier”, to activate a snap action switch when the selected level of vibration is exceeded and the detecting mechanism “trips”.
  • Page 16: Adjustments Of Operating Setpoint

    This method can lead to differences in the classification of the degree of vibration between individual observers. Robertshaw believes that if the machine is operating satisfactorily, as previously defined, and the acceleration sensed by the Vibraswitch® is within certain limits, the settings made as outlined in the following instructions will offer protection of the machine and prevent catastrophic failure.
  • Page 17 INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 The Model 365A & E365A Vibraswitch® is adjusted by a simple three-step procedure (Ref., Figure 4- 1. Zero Vibration Level Measurement With the equipment on which the Vibraswitch® is mounted not operating, back off the SETPOINT adjustment screw counterclockwise (CCW) two (2) turns and press the RESET button.
  • Page 18: Suggested Settings When "Normal" G-Level Is >1.0 G

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 Figure 4.3 – Suggested Settings When “Normal” g-Level is >1.0g PAGE 14...
  • Page 19: Maintenance

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 MAINTENANCE The Vibraswitch® does not normally require any maintenance or repair; however, listed below are some of the possible malfunctions that may occur and their recommended solutions. FUNCTIONAL TEST (Ref. Figure 4-1) 1.
  • Page 20: Unable To Adjust Setpoint To Obtain Trip

    MODEL 365A & E365A INSTRUCTION MANUAL VIBRASWITCH® MALFUNCTION DETECTOR 909GF294 5.2.2 Unable to Adjust Set point Setting to Obtain Trip An improper air gap exists between hold down (lower) magnet and armature. ® Return the Vibraswitch to the factory for repair.

This manual is also suitable for:

E365a

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