Revision 1.0
SMV800 Modbus User's Guide
Page 117
Device
Variables
Status
117
Bit - 3
bad_SP
The Static Pressure input
measurement is far
outside the specified
range. The meter body
may be damaged.
The status is set if any of
the critical faults is set.
Refer register 116 status
bits for more details and
resolution. Verify that all
inputs are within
specifications
Bit - 4
bad_Flow
The Flow calculation has
failed. Possible
causes are:
• Bad DP/SP/MBT/PT input
• Invalid flow algorithm
configuration
• Firmware flow control
fault
• Any one critical fault is set
If Bad DP/MBT/SP/PT
status is set, follow
the resolution suggested.
If Bad Flow is a result of an
invalid algorithm
configuration other
statuses will be set to
clarify the issue. Correct
the configuration
parameters and recheck
the calculated raw flow
(register: 389-390) .
A power cycle is
recommended here to
reset and get correct
reading.
If a Flow Control Fault is
set, reset the
device. If the problem
persists, replace the Meter
Body.
Bit - 5
bad_Totalizer
The Totalizer calculation
has failed. Possible
causes is same as that of
Bad Flow.
Refer the steps for Bad
Flow
Bit - 6
DP Above High
Limit
Differential pressure
measured is above URV
Verify that the DP input is
within specifications and if
so adjust URV as per
need.
Bit - 7
DP Below Low
Limit
Differential pressure
measured is below LRV
Verify that the DP input is
within specifications and if
so adjust LRV as per need.
Bit - 8
SP Above High
Limit
Static pressure measured
is above URV
Verify that the SP input is
within specifications and if
so adjust URV as per
need.
Bit - 9
SP Below Low
Limit
Static pressure measured
is below LRV
Verify that the SP input is
within specifications and if
so adjust LRV as per need.
Bit - 10
PT Above High
Limit
Process Temperature
measured is above URV
Verify that the temperature
input is within
specifications and if so
adjust URV as per need.
Bit - 11
PT Below Low
Limit
Process Temperature
measured is below LRV
Verify that the temperature
input is within
specifications and if so
adjust LRV as per need.
Summary of Contents for SMV800
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Page 95: ...Revision 1 0 SMV800 Modbus User s Guide Page 83 2 5 4 Review ...
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Page 103: ...Revision 1 0 SMV800 Modbus User s Guide Page 91 Maintenance Menu ...
Page 104: ...Page 92 SMV800 Modbus User s Guide Revision 1 0 2 7 1 Advanced Diagnotics Menu ...
Page 105: ...Revision 1 0 SMV800 Modbus User s Guide Page 93 2 7 2 Monitoring Menu ...
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