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Output damping

The output damping is set in the factory at 1 s and affects the speed at which the
current output responds to a change in level. When there is a sudden jump from
empty to full in the vessel, after 1 s the current display reaches 63% or 14.08 mA of
the set point (1*output damping). After 5 s (5*output damping) it reaches 99 % or
19.84 mA. If a larger output damping is set, then these display times are
correspondingly longer.

The output damping can be selected between the range 0 and 40 s. For liquids, the
turbulence can cause the display to be unstable. Increasing the output damping with
the handheld terminal cancels this effect.

Step 

Entry 

Cursor in display at 

Significance

1 1 

CALIBRATION

Basic setting

2

5

OUTPUT DAMPING

Setting the output damping 

1 s

(Factory setting 1 s)

e.g. 2

2

Sets the output damping to 2 s

4 F4

 [ENTER]

Confirms entry

5

F2 

[SEND]

Value is transmitted

Value for 4 mA

If another value instead of 0 (= empty vessel) is to be displayed, then the value can
be entered here. The units are changed from % in the "

SELECT UNIT

" menu.

Step 

Entry 

Cursor in display at 

Significance

1 1

CALIBRATION

Basic setting

2

6

VALUE FOR 4 mA

Value for 4 mA

e.g. 20.0 

20.0

Value is displayed if the current value is 4 mA

4 F4

 [ENTER]

Confirms entry

5

F2 

[SEND]

Value is transmitted

Value for 20 mA

If another value instead of 100 (= full vessel) is to be displayed, then the value can be
entered here. The units are changed from % in the "

SELECT UNIT"

 menu (see below).

Step 

Entry 

Cursor in Display at 

Significance

1 1

CALIBRATION

Basic setting

2

7

VALUE FOR 20 mA

Value for 20 mA

e.g. 80.0 

80.0

Value is displayed, 
if the current value is 20 mA

4 F4

 [ENTER]

Confirms entry

5

F2

 [SEND]

Value is transmitted

Selecting units

Instead of giving the results in %, the following units may be selected:

Level:

cm

dm

m

inch

ft

Volume:

l

hl

cm3

dm3

m3

ft3

us_gal

i_gal

Weight:

ton

kg

t

lb.

Step 

Entry 

Cursor in display at 

Significance

1 4

USER INFORMATION

User information

2

6

SELECT UNIT

Select units 

%

 

Factory setting

3

      e.g.10x

m3

Volume display in m3

4 F4 

[ENTER]

Confirms entry

5

F2

 [SEND]

Value to be transmitted

Electronic insert FEC 12 (HART)

4    Calibrating

Hauser

13

Содержание FEC 12

Страница 1: ...Electronic insert FEC 12 with HART Protocol Level Measurement Operating Instructions BA 148F 00 en 07 95 b Software Version 1 x Part No 016700 1000 Hauser Endress The Power of Know How...

Страница 2: ...ents A detailed description of calibration and operation is given in Sections 3 5 Reset to factory settings Linearisation at handheld terminal Unlock parameters Lock parameters Full calibration Empty...

Страница 3: ...Measuring Point 14 5 1 Locking Unlocking Parameters 14 5 2 Tag Number 14 6 Diagnosis and Troubleshooting 15 6 1 Alarms 15 6 2 Simulation 15 6 3 Description of Fault Responses Error Messages 17 6 4 Re...

Страница 4: ...afety requirements on the measuring point as specified in the accompanying certificate Installation commissioning and operation Installation electrical connection commissioning operation and maintenan...

Страница 5: ...Settings empty calibration 4 mA and full calibration 20 mA using pushbuttons on the electronic insert Operates with a linear characteristic as well as with a stored linearisation curve for horizontal...

Страница 6: ...the probe is always connected to Terminal 3 Warning When using the probe in explosion hazardous areas ensure that the type and routing of the intrinsically safe power and signal line is in accordance...

Страница 7: ...fset for empty vessel probe free 0 pF 350 pF Change in capacitance span for full vessel probe covered 10 pF 2000 pF Total capacitance resulting from initial capacitance plus change in capacitance maxi...

Страница 8: ...t the FEC 12 by using the four pushbuttons see Section 4 Basic Operation The pushbuttons marked with increase current and those marked decrease current Punching the pushbuttons produces a step wise ch...

Страница 9: ...e following diagram shows the menu structure of the HART protocol for the FEC 12 electronic insert Each field in the menu structure can be selected using the arrow or numeric keys on the handheld term...

Страница 10: ...ibration is not then required see also Section 6 4 1 Basic Calibration at the FEC 12 Electronic Insert The following entries are required for basic calibration of the electronic insert Type of lineari...

Страница 11: ...der to set the signal current to the 20 mA upper value The green LED lights up to acknowledge that the setting has been accepted Only when the green LED goes out is the correct value of 20 mA shown on...

Страница 12: ...ammeter is set by pressing the two pushbut tons on the right Pressing pushbutton increases the current and pressing pushbutton decreases the current Note No indication is given on the green LED when u...

Страница 13: ...u to the next higher menu with the arrow key Last step Return to the Online menu with F3 HOME Reset factory settings Step Entry Cursor in display at Significance 1 3 SERVICE SIMULATION 2 4 DEFAULT VAL...

Страница 14: ...R Confirms entry value to be transmitted 5 3 FULL CALIBRATION Full calibration 6 100 0 100 0 Vessel is full a 20 mA signal is output at the entered level or volume 7 F4 ENTER Confirms entry value is t...

Страница 15: ...value can be entered here The units are changed from in the SELECT UNIT menu Step Entry Cursor in display at Significance 1 1 CALIBRATION Basic setting 2 6 VALUE FOR 4 mA Value for 4 mA 3 e g 20 0 20...

Страница 16: ...ot apply if the locking was activated at the electronic insert This is indicated by the code number 9999 in the menu field Step Entry Cursor in Display at Significance 1 2 EXTENDED CALIBRATION Extende...

Страница 17: ...ed It can be used for checking the correct processing of probe signals e g in a process control system Simulation may also be necessary for tracing faults No change in level is required to produce a d...

Страница 18: ...1 3 SERVICE SIMULATION Service Simulation 2 7 SIM VOLUME Simulation of volume e g 77 06 Actual measured value is displayed 3 e g 5 00 5 00 Volume to be simulated is entered 4 F4 ENTER Confirms entry v...

Страница 19: ...permitted range 4 0 20 mA or 3 8 20 mA It has no relationship to the measured value 6 4 Replacing the FEC 12 Electronic Insert Note If you want to transmit the settings of the old electronic insert in...

Страница 20: ...RT Communicator handheld terminal The procedure begins with an upload with the data from the old FEC 12 to the handheld terminal Once the upload has been completed a download is is made and all data a...

Страница 21: ...is marked for download once RETURN F4 is pressed SKIP F4 The variable is skipped not marked for download The next variable is then marked The Offline menu is displayed after the last variable The para...

Страница 22: ...56993 Fax 042 50981 Brazil Samson Endress Hauser Ltda Sao Paulo Tel 011 50313455 Fax 011 50313067 Canada Endress Hauser Ltd Burlington Ontario Tel 905 6819292 Fax 905 6819444 Chile Endress Hauser Chi...

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