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1 For your safety

VEGAPULS SR 68 • Modbus and Levelmaster protocol

47164-EN-180226

1  For your safety

1.1  Authorised personnel

All operations described in this documentation must be carried out 

only by trained specialist personnel authorised by the plant operator.
During work on and with the device the required personal protective 

equipment must always be worn.

1.2  Appropriate use

VEGAPULS SR 68 is a sensor for continuous level measurement.

You can find detailed information about the area of application in 

chapter "

Product description

".

Operational reliability is ensured only if the instrument is properly 

used according to the specifications in the operating instructions 

manual as well as possible supplementary instructions.

1.3  Warning about incorrect use

Inappropriate or incorrect use of this product can give rise to applica-

tion-specific hazards, e.g. vessel overfill through incorrect mounting 

or adjustment. Damage to property and persons or environmental 

contamination can result. Also, the protective characteristics of the 

instrument can be impaired.

1.4  General safety instructions

This is a state-of-the-art instrument complying with all prevailing 

regulations and directives. The instrument must only be operated in a 

technically flawless and reliable condition. The operator is responsi

-

ble for the trouble-free operation of the instrument. When measuring 

aggressive or corrosive media that can cause a dangerous situation 

if the instrument malfunctions, the operator has to implement suitable 

measures to make sure the instrument is functioning properly.

During the entire duration of use, the user is obliged to determine the 

compliance of the necessary occupational safety measures with the 

current valid rules and regulations and also take note of new regula-

tions.

The safety instructions in this operating instructions manual, the na

-

tional installation standards as well as the valid safety regulations and 

accident prevention rules must be observed by the user.

For safety and warranty reasons, any invasive work on the device 

beyond that described in the operating instructions manual may be 

carried out only by personnel authorised by the manufacturer. Arbi-

trary conversions or modifications are explicitly forbidden. For safety 

reasons, only the accessory specified by the manufacturer must be 

used.

To avoid any danger, the safety approval markings and safety tips on 

the device must also be observed and their meaning looked up in this 

operating instructions manual.

Summary of Contents for VEGAPULS SR 68

Page 1: ...Quick setup guide Radar sensor for continuous level measurement of bulk solids VEGAPULS SR 68 Modbus and Levelmaster protocol Document ID 47164...

Page 2: ...er supply and bus system 12 4 1 Connecting 12 4 2 Wiring plan 13 5 Set up the sensor with the display and adjustment module 15 5 1 Insert display and adjustment module 15 5 2 Parameter adjustment 15 5...

Page 3: ...with all prevailing regulations and directives The instrument must only be operated in a technically flawless and reliable condition The operator is responsi ble for the trouble free operation of the...

Page 4: ...the electromag netic compatibility to other instruments must be ensured by suitable measures 1 6 NAMUR recommendations NAMUR is the automation technology user association in the process industry in G...

Page 5: ...metal reinforced fiberglass or concrete Changes or modifications not expressly approved by the manufac turer could void the user s authority to operate this equipment 1 9 Environmental instructions P...

Page 6: ...ce protection class 14 ID numbers instrument documentation 15 Reminder to observe the instrument documentation The type label contains the serial number of the instrument With it you can find the foll...

Page 7: ...EGAPULS SR 68 Modbus and Levelmaster protocol 47164 EN 180226 This operating instructions manual applies to the following instrument versions Hardware from 2 1 0 Software from 4 5 1 Scope of this oper...

Page 8: ...of the antenna 5 Remove the parabolic antenna 4 axially 6 Mount sensor flange on the adapter flange and fasten it tightly 7 Check if the O ring seal is present on the connection piece and make sure it...

Page 9: ...gainst falling off 4 Retighten the antenna with hexagon screws to the antenna socket max torque see chapter Technical data Note The radar sensor with rinsing air connection or with antenna exten sion...

Page 10: ...t damaged Note A damaged O ring seal must be replaced FKM SHS FPM 70C3 GLT FFKM Kalrez 6375 8 Remount the parabolic antenna 4 9 Fasten compression nut 2 with a wrench width across flats 41 max torque...

Page 11: ...r protocol 47164 EN 180226 ca 10 mm 200 mm 7 87 Fig 5 Distance of the antenna to the vessel wall vessel ceiling 2 Note min socket diameter depending on the socket length 3 Note the instructions for se...

Page 12: ...should hear it snap in Proceed as follows 1 Unscrew the housing lid 2 Loosen compression nut of the cable gland and remove blind plug 3 Remove approx 10 cm 4 in of the cable mantle signal output strip...

Page 13: ...cable glands The seal ring must completely encircle the cables 10 Screw the housing lid back on The electrical connection is finished Information The terminal blocks are pluggable and can be removed...

Page 14: ...chamber housing power supply MODBUS D0 D1 IS GND USB 1 2 4 3 1 3 4 5 2 off on Fig 9 Terminal compartment 1 USB interface 2 Slide switch for integrated termination resistor 120 3 Modbus signal 4 Volta...

Page 15: ...ent module on the electronics in the desired position and turn it to the right until it snaps in 3 Screw housing lid with inspection window tightly back on Disassembly is carried out in reverse order...

Page 16: ...nce from the sensor to the product surface For indication of the real level an allocation of the measured distance to the percentage height must be carried out 2 1 3 100 0 1 m 39 37 35 m 1378 Fig 11 P...

Page 17: ...th the current echo curve The following circumstances cause interfering reflections and can influence the measurement High mounting sockets Vessel internals such as struts Agitators Buildup or welded...

Page 18: ...vessel Extend is used to extend an already created false signal suppres sion This is useful if a false signal suppression was carried out with too high a level and not all false signals could be detec...

Page 19: ...suring cell Measuring cell tempera ture in C Metallic measuring cell Electronics temperature in C Display format 1 and 2 Number of positions after the decimal point auto matically Backlight Switched o...

Page 20: ...Lin percent Level Current output Adjustment 0 100 correspond to 4 20 mA Current out put 2 Current output Meas vari able Measuring cell temperature ceramic measuring cell Current output Adjustment 0 1...

Page 21: ...approval These data can differ from the data listed herein for example regarding the process conditions or the voltage supply Electromechanical data version IP 66 IP 67 Cable gland M20 x 1 5 or NPT Wi...

Page 22: ...22 Notes VEGAPULS SR 68 Modbus and Levelmaster protocol 47164 EN 180226...

Page 23: ...23 Notes VEGAPULS SR 68 Modbus and Levelmaster protocol 47164 EN 180226...

Page 24: ...of delivery application practical use and operat ing conditions of the sensors and processing systems correspond to the information available at the time of printing Subject to change without prior n...

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