NIVELCO EasyTREK SCD-31 4 Series Installation And Programming Manual Download Page 31

 

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8.

 

PARAMETER TABLE 

 

 

Par. 

Page 

Description 

Value 

 

Par. 

Page 

Description 

Value 

 

 

 

d c b a   

 

 

 

d c b a 

P00 

15 

Application/Engineering 

Units 

 

     

P28 

24  Echo-loss 

handling 

    

P01 

16  Measurement 

Mode 

 

     

P29 

25 

Blocking out of object 

       

P02 

17  Calculation 

units 

 

     

P30 

 

 

       

P03 

17 

Values displayed - Rounding 

         

P31 

25 

Sound velocity at +20 °C (+68 °F) 

       

P04 

17 

Maximum Measuring Distance  

         

P32 

 

 

       

P05 

18  Minimum 

Measuring 

Distance 

     

P33 

25  Specific 

gravity 

    

P06 

19 

Far End Blocking  

         

P34 

25  Manual 

echo 

selection 

    

P07 

 

         

P35 

 

       

P08 

20  Fixed 

output 

current 

     

P36 

 

       

P09 

 

– 

         

P37 

 

       

P10 

20 

Value assigned to 4 mA current output 

         

P38 

 

       

P11 

20 

Value assigned to 20 mA current output 

         

P39 

 

       

P12 

20 

Error indication by the current output 

         

P40 

26 

Tank / silo shape 

       

P13 

21  Relay 

functions 

     

P41 

27 

Tank / silo dimensions 

       

P14 

21 Relay 

parameter 

– 

Setpoint 

value 

     

P42 

27 

Tank / silo dimensions 

       

P15 

21 Relay 

parameter 

– 

Setpoint 

value 

     

P43 

27 

Tank / silo dimensions 

       

P16 

 

         

P44 

27 

Tank / silo dimensions 

       

P17 

 

         

P45 

27 

Tank / silo dimensions 

       

P18 

 

         

P46 

 

 

       

P19 

21  HART 

short 

address 

     

P47 

27  Linearization 

    

P20 

22  Damping 

     

P48 

28 

Number of linearization data pairs 

       

P21 

 

– 

         

P49 

 

       

P22 

 

 

         

P50 

 

       

P23 

22 

Angle 

of 

repose 

     

P51 

 

       

P24 

23  Target 

tracking 

speed 

     

P52 

 

       

P25 

23 

Selection of Echo in the measuring window 

         

P53 

 

       

P26 

23  Level 

elevation 

rate 

     

P54 

 

       

P27 

23  Level 

descent 

rate 

     

P55 

 

       

Summary of Contents for EasyTREK SCD-31 4 Series

Page 1: ...scd340en21p07 1 32...

Page 2: ...2 32 scd340en21p07...

Page 3: ...SION 11 5 PUTTING INTO OPERATION ADJUSTING PROGRAMMING 13 5 1 PUTTING INTO OPERATION 13 5 1 1 Status indication signals in measuring mode 14 5 2 SPECIAL CONDITIONS OF EX USE 14 5 3 PROGRAMMING 14 5 4...

Page 4: ...scd340en21p07 4 32 CERTIFICATES Reference document number BKI ATEX Certificate No BKI16ATEX0020X 1 scd3404m060bp_07 EAC Certificate No RU C HU IM43 B 01471 scd3404o0600p_02...

Page 5: ...e required for the ultrasound pulses to make a round trip from the sensor to the level to be measured and back The sensor emits an ultrasonic pulse train and receives the echoes reflected The intellig...

Page 6: ...he EasyTREK s keep the connection with the MultiCONT through HART communication only This means that the measurement values are collected in cycles and that the modifications of the transmitter settin...

Page 7: ...inst surge transients If no echo continuous 3 6 mA or 22 mA selectable with programming Relay Electronic switch SPST 48 V AC 50 V DC 1 A Digital communication HART standard on the current output 2 3 2...

Page 8: ...S C D 3 Range Frequency Code Mounting Code Output Certificates Code 1 60 m 15 kHz 1 1 BSP thread 0 4 20 mA HART Relay 4 0 6 30 m 30 kHz 3 Aiming device J 4 20 mA HART SSR Ex ma ta IIIC 8 0 6 15 m 40...

Page 9: ...scd340en21p07 9 32 2 6 Dimensions SCD 310 SCD 310 Ex SCD 330 SCD 340 SCD 330 8 Ex SCD 340 8 Ex SAA 102 SCD 31J SCD 31J 8 Ex SCD 33J SCD 34J SCD 33J 8 Ex SCD 34J 8 Ex Ball joint Housing view from above...

Page 10: ...orporating a ball joint that is attached to the integrated level transmitter It is recommended to mount the transmitter on the roof of the tank silo using a flange see drawing above The Ball joint hou...

Page 11: ...lay or the solid state output The house must be grounded to have noise protection it should be grounded to the equipotential bonding net 3 wire DC powered devices can be created by connecting one of t...

Page 12: ...ultiCONT process control unit Power is supplied from a common external source the relays are not used HART communication and power supply of one SCD 300 transmitter from the MultiCONT process control...

Page 13: ...HE SENSORS When the material to be measured is being filled or emptied because of the formation of an angle of repose the vertically installed transmitter will experience a weak signal This can be eli...

Page 14: ...t of the unit the ambient temperature is equal to the process temperature The current output should be connected to a galvanic isolator 5 3 Programming HART interface of the EasyTREK enables full acce...

Page 15: ...ter will result in loading the factory default with the corresponding engineering units a OPERATING MEASUREMENT MODE 1 Free flowing solids level measurement b ENGINEERING UNITS ACCORDING TO C Metric U...

Page 16: ...the higher the a of the programmed parameter value the more measured or calculated process values can be transmitted through HART e g if P01 0 only the Distance if P01 4 Distance Level and Volume Exce...

Page 17: ...the greatest distance H between the sensor surface and the farthest surface to be measured in the application Factory default of this parameter is the maximum distance XM that can be measured by the...

Page 18: ...d blocking would be used for example to block out the echo originating from the bottom rim of a stand off pipe or from any object protruding into the ultrasonic cone near to the transmitter Automatic...

Page 19: ...in this range it gives special signals When level sinks below far end blocking Message of Sub 0 appears in EView in level and volume measurement mode Current output holds value corresponding to far en...

Page 20: ...EV or VOL measurement the min and max value has to be entered in the relevant engineering units of LEV m ft or VOL m3 ft3 Assignments can be made so that the proportion between the change of the measu...

Page 21: ...by de energized relay P14 Relay parameter Setpoint value FACTORY DEFAULT 0 P15 Relay parameter Setpoint value FACTORY DEFAULT 0 Relay set points are to be programmed for two point control Values shou...

Page 22: ...able Not recommended 5 60 Recommended Applicable 6 100 Recommended Recommended 7 300 Recommended Recommended 8 600 Recommended Recommended 9 1000 Applicable Applicable P23 a Angle of repose repose for...

Page 23: ...ng window Basic echo selection will be done by the Quest software automatically This parameter only influences the echo selection within the measuring window a Echo in the window to be selected Remark...

Page 24: ...he displayed value on the EView and the analogue output value shifts towards the full tank silo state with the level elevation rate filling speed set in P26 3 Immediate In case of an echo loss no Echo...

Page 25: ...lection by moving the Measuring Window FACTORY DEFAULT 0 A so called measuring window is formed around the echo signal See scheme on the next page The distance of the target will be calculated from th...

Page 26: ...he value a defining the shape of the container must be set first b0 Standing cylindrical tank shape value of b as below bottom P40 b P41 01 Standing cylindrical tank silo with conical bottom P41 P43 P...

Page 27: ...5 4 6 Linearisation P47 a Linearization FACTORY DEFAULT 0 An output signal of any characteristic can be assigned to the level values measured by the device The characteristic can be specified with a m...

Page 28: ...Column L cannot contain the same values If the table contains less than 32 data pairs the row after the last valuable data pair in column L must be 0 If the above conditions are not met and P47 1 tabl...

Page 29: ...the selected echo time ms P74 Signal to Noise Ratio RATIO MEASUREMENT CONDITIONS Over 70 Excellent Between 70 and 50 Good Under 50 Unreliable P75 Blocking Distance This parameter gives information ab...

Page 30: ...on Linearisation Err 14 Linearisation table error the r i values are not monotone increasing See the Section Linearisation Err 15 Linearisation table error measured Level is higher than the last Volum...

Page 31: ...P10 20 Value assigned to 4 mA current output P38 P11 20 Value assigned to 20 mA current output P39 P12 20 Error indication by the current output P40 26 Tank silo shape P13 21 Relay functions P41 27 T...

Page 32: ...65 29 Maximum temperature of the transducer P66 29 Minimum temperature of the transducer P88 P67 P89 P68 P90 P69 P91 P70 29 Number of Echoes Echo Map P92 P71 29 Distance of the of Measuring Window P93...

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