29
Reference Manual
00809-0200-4705, Rev AB
May 2017
Section 5
Operation and Maintenance
Basic operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 29
Determining device health . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 30
Interpreting LCD screen messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 30
Replacing the power module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 37
Modbus
Reset/restore device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 39
Suspend (pause) the totalization in the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 39
Average flow rate filtering period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 39
Low-Flow cut-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40
Input sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40
How to reset the totalized volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40
Service support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40
5.1
Basic operation
5.1.1
Rollover information
The totalized volume will automatically restart at a volume of zero when the configured rollover point
has been reached. The table below describes some estimates to how long a rollover will take at max
values of 10 million. Best practices are to reset the total before the device rollover occurs. The totalized
volume will accumulate in the transmitter up to a configurable rollover point. Once the totalized volume
reaches the rollover point, the totalized value will automatically continue totalizing the volume starting
from zero. The rollover point defaults to 100 million, but can be configured to any value between one
and two billion. Note the resolution of the totalized volume is reduced as the value gets larger. Refer to
the table below or see the menu tree
:
Note
The rollover value itself is not affected by the volume engineering units. For example, if the rollover value
is configured to 100 million with engineering units of gallons, a change to volume units of cubic meters
will cause the rollover value to still be 100 million, but will rollover at 100 million cubic meters rather than
100 million gallons.
Configured units code
Earliest rollover
Typical longest LCD wait
Typical longest value wait
Cu.M
75 years
137 days
39 minutes
L
27 days
3 hours
2 seconds
UK Gal
125 days
15 hours
10 seconds
US Gal
104 days
12 hours
9 seconds
Barrel
11 years
21 days
6 minutes
Cu.F
2 years
3 days
1 minute
Cu.Y
57 years
105 days
30 minutes
Cu.I
0 day
3 minutes
0 seconds
Pulses
1 day
50 seconds
0 seconds
Summary of Contents for Rosemount 705
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Page 6: ...vi Reference Manual 00809 0200 4705 Rev AB Contents May 2017 Contents ...
Page 10: ...2 Reference Manual 00809 0200 4705 Rev AB Introduction May 2017 Introduction ...
Page 32: ...28 Reference Manual 00809 0200 4705 Rev AB Commissioning May 2017 Commissioning ...
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