5 maintenance, 1 function test, 2 troubleshooting – Yokogawa RAMC User Manual
Page 64: 5 maintenance -16, 1 function test -16, 2 troubleshooting -16
<7. HART-COMMUNICATION>
7-16
IM 01R01B02-00E-E 10th edition January 01, 2013 -00
All Rights Reserved. Copyright © 2003, Rota Yokogawa
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
®