5 maintenance, 1 function test, 2 troubleshooting – Yokogawa RAMC User Manual

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<7. HART-COMMUNICATION>

7-16

IM 01R01B02-00E-E 10th edition January 01, 2013 -00

7.5 Maintenance

7.5.1 Function test

Wire the unit according to the connection diagram.

Check HART

-communication with HART

-communicator or with PC with HART

-ability

communication program.

Setting: Device setup / Process variables.

PV AO shows the current value; compare this value with the measured current.

7.5.2 Troubleshooting

Do the following test if problems with HART

-units appear :

Wire the unit according

the connection diagram

Select correct load.

Select correct voltage

Load HART® -DD for

RAMC in communicator.

(Yokogawa Service)

Change communicator.

RAMC to Yokogawa Service

Is the unit wired correctly?

Is load resistance in the correct

range?

Is supply voltage in the correct

range?

Does HART®-communicator

contain DD for RAMC?

Communicator OK ?

T76.EPS

HART - Test