Yokogawa RAMC User Manual
Page 58
<7. HART-COMMUNICATION>
7-10
IM 01R01B02-00E-E 10th edition January 01, 2013 -00
All Rights Reserved. Copyright © 2003, Rota Yokogawa
Device setup
Diag/Service
Calibration
Reset
URV/LRV
Reset 4mA
Set 4mA to factory set LRV
Reset 20mA
Set 20mA to factory set URV
Exit
Leave parameter
Device setup
Diag/Service
Calibration
D/A
Trim
Adjustment of current output to 4mA and 20mA.
Device setup
Diag/Service
Calibration
Calib
table
Selection of calibration table: Standard / Distance version
Device setup
Diag/Service
Calibration
Manual
calib
Status mancal
ON/OFF Show status of manual calibration table
Activate/deactivate
ON/OFF Activate or deactivate manual calibration table
Set mancal points
5%...105%
Set manual calibration points
See description of manual calibration in chapter 6.2.9
Device setup
Diag/Service
Diagnostics
Temp
max
log
Temp max log
ON/OFF Activate or deactivate Temp max
Logging
function
Duration/value
Days
Time since appearance of …
Hours
… maximum temperature
Minutes
Temp max
Max. temperature value
Old durat/value
Days
Time since appearance of
Hours
maximum temperature before
Minutes
clear
or
reset
Temp max
Max.temperature value before
clear
or
reset
Clear values
The values in parameter Duration/value are written to
parameter
Old
durat/value
.
Parameter Duration/value is cleared and temp max is
set
to
actual
temperature.
Description of temperature maximum logging function:
The temperature value is supervised constantly. As soon as the value exceeds the actual maximum value, the
time measurement starts. The minutes are added up, the period can be requested by the user any time. The
actual maximum value is overwritten by a higher value automatically, if it lasts more than 30 seconds; the time
measurement starts once more. The determined values (max temperature/period) can be cleared by the user.
They are written into the parameter Old durat/value after Clear values or after power off/on, the actual time
value is deleted, the max temperature value is set on the actual temperature value. By switching Temp max
log off the values are not cleared.
When exceeding the maximum temperature of 70°C the error message “Temp over limit” appears.