Magnetrol Echotel 335 Скачать руководство пользователя страница 17 | Manualshive

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Magnetrol Echotel 335 Скачать руководство пользователя страница 17

16

6.2

Current Output

P10:

Value (of distance, level, volume or flow) assigned to 4 mA current output

P11:

Value (of distance, level, volume or flow) assigned to 20 mA current output

Values are interpreted according to

P01(a)

. Please note that in case of programming for (LEV or VOL) % measurement the

min and max value has to be entered in the relevant engineering units of LEV (m, ft) or VOL (m

3

, ft

3

).

Assignment 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 10m assigned to 20mA
represents direct proportion and lev 1m assigned to 20mA and lev 10 m assigned to 4mA represents the inverse proportion.

FACTORY DEFAULT:
P10 0 level (max distance)
P11 max level (min distance)

P12: - - - a Error indication by the current output

In case of error the Echotel will provide one of the current outputs below. (For errors and their indications see Chapter 7).

a

Error indication (according to NAMUR)

0

Hold last value

1

3.6 mA

2

22 mA

FACTORY DEFAULT: 0

6.3 Relay O

utput

P13: - - - a Relay function

a

Relay function

Also set:

0

DIFFERENTIAL LEVEL CONTROL
(Hysteresis control)
Relay is energised if the measured or
calculated value exceeds the value set in
P14
Relay is de-energised if the measured or
calculated value descends under the value
set in P15

Relay

Level

P14

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

COUNTER
Used for open channel flow metering.
A 140 msec pulse is generated every 1, 10,
100, 1.000 or 10.000 m

3

according to P16.

P16= 0: 1m

3

P16= 1: 10 m

3

P16= 2: 100 m

3

P16= 3: 1.000 m

3

P16= 4: 10.000
m

3

FACTORY DEFAULT: 2

P14: …

Relay parameter – Setpoint value

FACTORY DEFAULT: 0

P15: …

Relay parameter – Setpoint value

FACTORY DEFAULT: 0

P16: …

Relay parameter – Pulse rate

FACTORY DEFAULT: 0

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Содержание Echotel 335

Страница 1: ...Echotel Series 335 338 Compact Ultrasonic Transmitter INSTALLATION and PROGRAMMING MANUAL...

Страница 2: ...he 046 8108 001 Programming Module 9 5 2 3 Indications of the 046 8108 001 Programming Module and the LEDs 9 5 2 4 Current Output Scaling 10 5 2 5 QUICKSET 11 5 2 6 Full Parameter Access 12 6 PARAMETE...

Страница 3: ...nic level metering technology is based on the principle of measuring the time required for the ultrasound pulses to make a round trip from the sensor to the level to be measured and back The sensor em...

Страница 4: ...50 V AC 3 A HART optional Outputs Display 375 0SAP 100 6 digits icons and bargraph Custom LCD Electrical connections 2 x Pg16 and 2 x _ NPT Wire cross section 0 5 2 5 mm2 Electrical protection Class I...

Страница 5: ...hotel FOAM Foaming of the liquid surface may render ultrasonic level measuring impossible If possible a location should be found where foaming is the smallest the device should be located as far as po...

Страница 6: ...ic isolation is not provided The unit may be damaged by electrostatic discharge EDS via terminal thus apply the precautions commonly used to avoid electrostatic discharge 5 PROGRAMMING The Echotel wil...

Страница 7: ...g completed all other magnetic influences will be avoided Minimum level 0 empty tank assignment to 4 mA Place the Echotel at a distance to the target corresponding to the required maximum distance min...

Страница 8: ...22 mA 3 Place magnet to the symbol A Programming completed Damping Check valid echo as above Action LED indication 1 Place magnet to the symbol B Transmitter in programming mode 2 Place magnet to the...

Страница 9: ...ent of level to de energising of the relay Full Parameter Access 5 2 6 All features of the Echotel can be accessed by parameter addresses Example Measurement configuration Outputs Measurement optimali...

Страница 10: ...a ll modifica ti ons returnto pa r ameter addr ess P a r ame t e r va lu e A c tu a l Notes If the parameter value is not accessible i e the parameter address keeps blinking after pressing ENTER E th...

Страница 11: ...level value measured by the Echotel ENTER E Save actual value on the screen and move to the next screen NEXT UP Quit Current Output Scaling without saving the modifications NEXT DOWN Display Factory D...

Страница 12: ...value with level in tank or a fix target i e wall GET LEVEL functions only if ECHO LED is lit and save it as above DEFAULT maximum measuring distance m see Technical Data Table 4 mA xxxx level value...

Страница 13: ...ill be displayed for warning Neglect the modification of the Parameter Value and return to the Parameter Address without saving the modifications NEXT DOWN Reset entire device to Factory Default Since...

Страница 14: ...in mind that the instrument is measuring distance as basic quantity Measured distance Resolution Xmin 2m 1mm 2m 5m 2mm 5m 10m 5mm over 10m 10mm The resolution depending on the distance can be consider...

Страница 15: ...of P04 see table below can also be displayed by double key pressing NEXT DOWN Echotel Maximum measuring distance Level transmitters for liquids PP or PVDF m ft Echotel 338 6 20 Echoptel 335 8 26 Keep...

Страница 16: ...end of the measuring range for example tanks with heaters or other interfering objects sludge cone of silo etc may cause faulty readings If the level of the medium sinks below the blocked out range S...

Страница 17: ...e Echotel will provide one of the current outputs below For errors and their indications see Chapter 7 a Error indication according to NAMUR 0 Hold last value 1 3 6 mA 2 22 mA FACTORY DEFAULT 0 6 3 Re...

Страница 18: ...s parameter provides information for the QUEST software for optimising the echo search pattern a Estimated angle of repose 0 No angle of repose default 1 Below 15 2 Over 15 The optimal setting of this...

Страница 19: ...Liquids P00 Li P27 2000 P28 a Echo loss handling a Echo loss error indication Remark 0 Delayed During echo loss display and analogue output will hold last value If the echo loss prevails for 10 sec p...

Страница 20: ...eter if the Echotel unambiguously selects a wrong echo for example the echo reflected from the surface is much weaker than the interfering one s see figure beside and on next page Enter the distance o...

Страница 21: ...ormula data Also to be set Type Calculation formula Qmin l s Qmax l s P cm 00 GPA 1P1 Q l s 60 87 h1 552 0 26 5 38 30 P46 01 GPA 1P2 Q l s 119 7 h1 553 0 52 13 3 34 P46 02 GPA 1P3 Q l s 178 4 h1 555 0...

Страница 22: ...Parshall flume Sensor P 46 Sensor P40 09 General Parshall flume 0 305 P42 width 2 44 0 026 Q m3 s 0 372 P42 h 0 305 1 569 s 2 5 P42 Q m3 s K P42 h1 6 P 2 3 A A h P46 Sensor Sensor P42 P P40 10 Palmer...

Страница 23: ...oidal weir 0 0032 Q m3 s 82 20 P41 100 0 5 P42 m 15 0 1 h m 2 Q m3 s 1 772 P42 h1 5 1 320 tg P41 2 h2 47 Accuracy 5 P04 P46 h P42 P41 P40 17 Special Trapezoidal 4 1 weir 0 0018 Q m3 s 50 0 3 P42 m 10...

Страница 24: ...s in the table Address Serial number of the data pair Measurement value to be transmitter and displayed Conditions of correct programming of the data pairs Left column L Right column r L 1 0 r 1 L i r...

Страница 25: ...he actual close end blocking distance is displayed Provides useful information if automatic blocking was selected in P05 6 9 Additional Open Channel Flow Metering Features P76 LEV Head of flow The Hea...

Страница 26: ...order to program the device locked by a secret code first enter the Secret Code in P99 The Secret Code is re activated each time the Echotel is returned to Measurement Mode To delete the Secret Code...

Страница 27: ...4 14 Maximum measuring distance P29 18 Blocking out of object 1 P05 15 Minimum measuring dist Close end blocking P30 18 Blocking out of object 2 P06 15 Far end blocking P31 19 Sound velocity at 20_C P...

Страница 28: ...N A P71 24 Distance of the of Measuring Window read out parameter P96 N A P72 24 Amplitude of the Echo in the Measuring read out parameter P97 24 Software code P73 24 Echo Position time read out para...

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