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Operating Instructions

IP4001, Rev CA

March 2018

Mobrey

 Series VLS

Vibrating Level Switch

Summary of Contents for Mobrey VLS Series

Page 1: ...Operating Instructions IP4001 Rev CA March 2018 Mobrey Series VLS Vibrating Level Switch ...

Page 2: ... vibration The change in vibration intensity is sensed by an electronic unit which upon the elapse of the delay time actuates the output circuit 1 2 Accessories User manual IP4001 2 off 3 pole terminal blocks 1 in sealing for BSP only 2 off M20x1 5 cable glands 1 3 Order code K Standard model with 1 x SPDT alarm relay H 1 High temperature model with 1 x SPDT relay not available with Extended Cable...

Page 3: ...tion for proper adjustment on a sample quantity of material see Adjustments on page 6 The unit may not work with mediums that are within the specified density range but have very large granules or have too little friction Handle the device with great care especially the sensing probe Any impact on the sensing probe may ruin its resonance system A protective shield should be installed see inset rig...

Page 4: ...ed up to maximum of 300 to adjust the cable gland to the required position It might be necessary to install the device at an offset level position relative to the switching level actually required taking into account caving or arching of the material in the silo see Figure 1 2 Figure 1 2 Examples of Correct and Incorrect Installations Incorrect Correct Incorrect Correct ...

Page 5: ... reduce the self cleaning effect Avoid mounting the rod in a recess Figure 1 3 Figure 1 3 Avoid Mounting Rod in Recess In the case of tanks that are likely to be exposed to intense vibrations necessary provisions shall be made for damping the vibrations acting on the device e g vibration damping inserts made of rubber have to be applied Figure 1 4 Maximum Torque and Force Incorrect F 500 N M 100 N...

Page 6: ... 1 kg dm3 Represents small energy and amplitude of vibration as well as great sensitivity of detection HIGH position Recommended for thick and heavy materials with density over 0 1 kg dm3 Represents vibration with great energy and amplitude and small sensitivity of detection The instrument may not switch correctly in mediums with a density of less than 0 05 kg dm3 or with very small internal frict...

Page 7: ...ections Table 1 1 Operation Power Probe Fail safe mode LED Relay On Not vibrating covered Low Green Energized High Red De energized Vibrating free Low Red De energized High Green Energized Fails Low or high Not lit De energized NO C NC PE N L1 PE N L1 1 2 3 4 5 6 250VAC 8A AC1 A B C Status LE D ...

Page 8: ...s See Figure 1 6 and Table 1 3 Maximum pressure absolute 25 bar 2 5 MPa 6 bar 0 6 MPa Minimum medium density 1 1 May depend on friction and granular size of the medium 0 05 kg dm maximum granular size 10 mm Response time selectable Not vibrating covered 1 8 seconds or 5 1 5 seconds Vibrating free 2 seconds or 5 1 5 seconds Supply voltage universal Normal type 20 255 Vac Vdc Ex type 20 250 Vac 50 6...

Page 9: ... EPL Da category 1D 60 C 70 C 80 C 95 C 1 1 The process temperature can reach 95 C for a maximum period of one hour 60 C 70 C 95 C 110 C 160 C Ambient air temperature Ta EPL Db category 2D 60 C 50 C 60 C 60 C 50 C 60 C 50 C 35 C Maximum surface temperature process connection 85 C 85 C 95 C 85 C 85 C 95 C 95 C 135 C Maximum surface temperature T 85 C 85 C 95 C 85 C 85 C 95 C 110 C 160 C T Class T90...

Page 10: ...10 Operating Manual IP4001 Rev CA Mobrey Series VLS March 2018 ...

Page 11: ...11 Operating Instructions IP4001 Rev CA Mobrey Series VLS March 2018 ...

Page 12: ...merson Automation Solutions Twitter com Rosemount_News Facebook com Rosemount Youtube com user RosemountMeasurement Google com RosemountMeasurement Emerson Terms and Conditions of Sale are available upon request The Emerson logo is a trademark and service mark of Emerson Electric Co Mobrey and Rosemount are marks of the Emerson family of companies All other marks are the property of their respecti...

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