Yokogawa EJA115 Manual do Utilizador descarregar pdf (Página 22)

IM 01C22T01-01E

2-15

2. HART COMMUNICATOR OPERATION

6

F0231.EPS

Because the reading on the

ammeter is 4.000 mA, select YES

and press ENTER (F4).

If the reading is not 4.000 mA,

select item 2. NO. Repeat steps

and until the ammeter reads

4.000 mA.

EJA:

Fld dev output 4.000

mA equal to reference

meter?

1 Yes

2 No

HELP SET ABORT ENTER

EJA:

Setting fld dev

output to 20mA

DEL SET ABORT OK

7

4

4

5

5

Press OK (F4), and the transmitter

outputs the output signal of 100%.

EJA:

Enter meter value

20.000

HELP DEL ABORT ENTER

8

Carry out the same procedures as

those described under and .

EJA:

Fld dev output 20.000

mA equal to reference

meter?

1 Yes

2 No

HELP ABORT

9

Returning fld dev to original

output appears.

DEL ENTER

(OK)

(ENTER)

(ENTER)

‘1 9.0 5 0‘

EJA:

NOTE-Loop may be

returned to automatic

control

HELP ESC

10

Press OK (F4).

DEL OK

(OK)

(ENTER)

Ammeter reading: 19.050

Ammeter reading: 20.000

Ammeter reading: 4.000

1

F0232.EPS

Select the Scaled D/A trim item.

EJA:

Trim analog output

1 D/A trim

2 Scaled D/A trim

HELP SET HOME OK

EJA:

WARN-Loop should be

removed from

automatic control

DEL SET ABORT OK

2

Press OK (F4).

EJA:

Trim will be scaled

from 4.000 to 20.000

1 Proceed

2 Change

HELP DEL ABORT ENTER

3

Select Change, and press ENTER

(F4).

The same operations as for D/A

trim are required when selecting

item 3. Proceed.

EJA:

Set scale- Lo output

value

4

4

HELP ABORT

4

Enter the value read on the meter

when the signal is 4 mA. In this

case, Enter the value of the voltage

across a 250 Ω resistor (1 V), and

press ENTER (F4).

DEL ENTER

(OK)

(ENTER)

‘1’

EJA:

Set scale- Hi output

value

20

20

HELP ABORT

5

Enter the value read on the meter

when the signal is 20 mA. Then,

enter 5, and press ENTER (F4).

DEL ENTER

(ENTER)

‘5’

Example 2: To adjust using a voltmeter

6

Select Proceed and press ENTER

(F4).

EJA:

Trim will be scaled

from 1.000 to 5.000

1 Proceed

2 Change

HELP SET ABORT ENTER

EJA:

Connect reference

meter

DEL SET ABORT OK

7

Connect the voltmeter, and press

OK (F4).

EJA:

Setting fld dev

output to 4mA

HELP DEL ABORT OK

8

Press OK (F4). The output signal of

0% is output.

(OK)

(OK)

(ENTER)

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 30 31

Comentários a estes Manuais

Sem comentários