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NIVELCO EasyTREK SCA-300 Series, Руководство по программированию

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NIVELCO EasyTREK SCA-300 Series Скачать руководство пользователя страница 19

EasyTREK Compact Ultrasonic Level Transmitters

17

P41-45:

Flume/weir dimensions
See next pages.

FACTORY DEFAULT: 

0

P46

:

Distance between transducer face and level of Q=0
P46

 is 

always

 the distance between the transducer face and the level, where the volume flow is 0.

FACTORY DEFAULT: 

0

Flume / Weir Dimensions

P40= 00

          .

          .

          .

         08

Nivelco Parshall flumes (GPA1P1 … GPA-1P9)

For further details see the Manual of the Parshall flume

Sensor

P4

6

Sensor

P40= 09

General Parshall flume

0.305 < P42(width) <2.44

0.026

Q[m

3

/s]= 0.372*P42*(h/0.305)

1.569*s

2.5 < P42
Q[m

3

/s]= K*P42*h

1.6

P= 2/3*A

A

h

P46

Sensor

Sensor

P42

P

s[m]

K

3.05

2.450

4.57

2.400

6.10

2.370

7.62

2.350

9.14

2.340

15.24

2.320

Содержание EasyTREK SCA-300 Series

Страница 1: ...AMMING MANUAL For SCA 3 4 models with HART 1st edition Manufacturer NIVELCO Process Control Co H 1043 Budapest Dugonics u 11 Tel 36 1 369 7575 Fax 36 1 369 8585 E mail sales nivelco hu http www nivelc...

Страница 2: ...aximum measuring distance ofm the unit X M Factory default P04 X M Maximumof the unit range Factory default P05 X B Close end blocking X B Max measuring distance of the application H Programming P04 H...

Страница 3: ...Output 8 1 3 Relay Output 9 1 4 Measurement Optimisation 10 1 5 Volume Calculation 15 1 6 Volume Flow Measuring 16 1 7 32 Point Linearisation Curve 21 1 8 Service Parameters 21 1 9 Additional Paramet...

Страница 4: ...S AND PROGRAMMING 1 1 Measurement Configuration P00 cba Application Engineering Units Programming of this parameter will result in loading the factory default with the corresponding engineering units...

Страница 5: ...01 b0 only the Distance if P01 b5 the Distance the Level the Volume and the Flow can be displayed Exception if P01 b2 or b4 a Measurement Mode Display symbol 0 Distance DIST 1 Level LEV 2 Level in per...

Страница 6: ...w Err4 Obviously the decimal position will be shifted with increasing value displayed See table at the left Values over one million will be displayed in exponential format whereas the value e represen...

Страница 7: ...smitters m ft SCA 38_ 6 20 SCA 36_ 10 33 Keep in mind that LEVEL as the result of the measurement P04 H value programmed DISTANCE measured by the device Since the accuracy of level and all further cal...

Страница 8: ...g distance i e the dead band Manual close end blocking P05 Xm Manual close end blocking would be used for example to block out the echo originating from the bottom rim of a stand off pipe or from any...

Страница 9: ...el is above the blocked out range The calculation of level and volume will be based on the programmed tank dimensions therefore the measured or calculated process values will not be influenced in any...

Страница 10: ...nt can be made so that the proportion between the change of the measured or calculated process value and the change of the current output be either direct or inverse E g lev 1m assigned to 4mA and lev...

Страница 11: ...P15 Time Energised De energised P14 P15 There is a need to set in level min 20mm hysteresis between P14 and P15 1 Relay is energised in case of Echo Loss 2 Relay is de energised in case of Echo Loss 3...

Страница 12: ...d applicable 3 10 recommended recommended 4 30 recommended recommended 5 60 recommended recommended 6 100 applicable applicable 7 300 applicable applicable 8 600 not applicable not applicable 9 1000 n...

Страница 13: ...w is formed around the echo signal The position of this measuring window determines the flight time for calculation of the distance of the target the picture below can be seen on the test oscilloscope...

Страница 14: ...e emptying speed Use these parameters to provide additional protection against echo loss in applications with very heavy fuming These parameters must not be smaller than the fastest possible filling e...

Страница 15: ...rate filling speed preset in P26 3 Immediate In case of echo loss the display will immediately change to no Echo and the outputs will change according to the Error Indication Mode preset in P12 4 No e...

Страница 16: ...here the gas is more or less homogeneous If it is not the accuracy of the measurement can be improved using the 32 point linearisation P48 P49 For sound velocities in various gases see section Sound V...

Страница 17: ...tanding rectangular tank silo with chute P41 P42 P43 P44 P45 b3 Lying cylindrical tank shape value of b as bellow bottom P40 b P41 P42 04 Spherical tank P41 FACTORY DEFAULT 00 P41 45 Tank silo dimensi...

Страница 18: ...674 6 h1 556 2 91 570 120 P46 06 GPA 1P7 Q l s 1014 9 h1 556 4 4 890 130 P46 07 GPA 1P8 Q l s 1368 h1 5638 5 8 1208 135 P46 08 Nivelco Parshall flume GPA 1P9 Q l s 2080 5 h1 5689 8 7 1850 150 P46 09 G...

Страница 19: ...the level where the volume flow is 0 FACTORY DEFAULT 0 Flume Weir Dimensions P40 00 08 Nivelco Parshall flumes GPA1P1 GPA 1P9 For further details see the Manual of the Parshall flume Sensor P46 Sensor...

Страница 20: ...D 2 flume Q m3 s f h1 P41 P412 5 where h1 m h P41 10 P04 P46 h P41 D D 10 P40 11 Palmer Bowlus D 3 flume Q m3 s f h1 P41 P412 5 where h1 m h P41 10 P04 P46 h P41 D D 10 P40 12 Palmer Bowlus Rectangul...

Страница 21: ...P42 m 15 0 1 h m 10 Q m3 s 5 073 P42 h1 5 Accuracy 10 P46 P42 h P40 15 Suppressed rectangular or BAZIN weir 0 001 Q m3 s 5 0 15 P41 m 0 8 0 15 P42 m 3 0 015 h m 0 8 Q m3 s 1 7599 1 0 1534 P41 P42 h 0...

Страница 22: ...47 Accuracy 3 h P46 P42 P04 P40 19 THOMSON 90 notch weir 0 0002 Q m3 s 1 0 05 h m 1 Q m3 s 1 320 h2 47 Accuracy 3 P46 P04 h 90 P40 20 Circular weir 0 0003 Q m3 s 25 0 02 h m 2 Q m3 s m b D2 5 m 0 555...

Страница 23: ...Overall operating hours of the unit Indication varies according to the elapsed time Operating hours Indication form 0 to 999 9h xxx x 1000 to 9999h xxxx Over 9999h X xx e meaning x xx 10e P61 h Time...

Страница 24: ...ent conditions Over 70 Excellent Between 70 and 30 Good Under 30 Unreliable P75 Blocking Distance The actual close end blocking distance is displayed Provides useful information if automatic blocking...

Страница 25: ...nd a better location 7 No signal received within the measuring range specified in P04 and P05 Review programming also look for installation mistake 12 Linearisation table error L 1 and L 2 are both ze...

Страница 26: ...ror indication by the current output P40 15 Tank silo shape Appliances formula data P13 9 Relay function P41 15 Tank silo dimensions Flume weir dimensions P14 9 Relay parameter Setpoint value P42 15 T...

Страница 27: ...hing cycle of the relay P85 N A P64 21 Actual temperature of the transducer P86 N A P65 21 Maximum temperature of the transducer P87 N A P66 21 Minimum temperature of the transducer P88 N A P67 N A P8...

Страница 28: ...Argon Ar 319 1 Bensol C6H6 183 4 Carbon dioxide CO2 268 3 Carbon monoxide CO 349 2 Carbon tetrachloride CCl4 150 2 Chlorine Cl2 212 7 Dimethyl ether CH3OCH3 213 4 Ethane C2H6 327 4 Ethanol C2H3OH 267...

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