Dwyer Instruments Digihelic DHC Series - Page 11

Analog Value - Valley
This object represents the minimum process value measured since the last power
cycle or reset. The unit of measure matches the selected process value. This value
cannot be reset remotely.
Analog Value - Velocity K-Factor
This object represents the Velocity K-Factor setting. When the instrument is used with
a Pitot tube, the manufacturer may specify a K-Factor in order to properly convert
differential pressure to velocity.
Analog Value - Flow Area
This object represents the cross sectional area of the duct where ow is to be
measured. The area is specic in either ft
2
or m
2
depending on the ow unit selected.
The adjustment range is 0.13-25.0 ft
2
(0.012-2.323 m
2
). The factory setting is 1 ft
2
(0.093 m
2
).
Multi-State Value - Process Mode
This object represents the process or operating mode of the instrument. This setting
determines which process variable is output on the analog channels and measurement
unit of the peak, valley, set points and alarm limits.
Analog Value - Process Output Low
This object represents the process value at which the analog output channels will be
at their minimum value. The unit of this value matches the unit of the selected process
mode.
Analog Value - Process Output High
This object represents the process value at which the analog output channels will be
at their maximum value. The unit of this value matches the unit of the selected process
mode.
Property Default Value Property Data Type Access
Object Identier
Object Name
Object Type
Preset Value
Status Flags
Event State
Reliability
Out Of Service
Units
AV4
“Valley”
Analog Value
Current Reading
{0,0,0,0}
Normal
No Fault Detected
FALSE
Process Value Unit
BACnet Object Identier
Character String
BACnet Object Type
Real
BACnet Status Flags
BACnet Event State
BACnet Reliability
Boolean
BACnet Engineering Units
Read
Read
Read
Read
Read
Read
Read
Read/Write
Read
Property Default Value Property Data Type Access
Object Identier
Object Name
Object Type
Preset Value
Status Flags
Event State
Reliability
Out Of Service
Units
Max Pres Value
Min Pres Value
AV5
“Velocity K-Factor”
Analog Value
1.0
{0,0,0,0}
Normal
No Fault Detected
FALSE
no-units
9.999
0.001
BACnet Object Identier
Character String
BACnet Object Type
Real
BACnet Status Flags
BACnet Event State
BACnet Reliability
Boolean
BACnet Engineering Units
Real
Real
Read
Read
Read
Read/Write
Read
Read
Read
Read/Write
Read
Read
Read
Property Default Value Property Data Type Access
Object Identier
Object Name
Object Type
Preset Value
Status Flags
Event State
Reliability
Out Of Service
Units
Max Pres Value
Min Pres Value
AV6
“Flow Area”
Analog Value
1.0 (0.093)
{0,0,0,0}
Normal
No Fault Detected
FALSE
square-feet
(square-meters)
25.0 (2.323)
0.13 (0.093)
BACnet Object Identier
Character String
BACnet Object Type
Real
BACnet Status Flags
BACnet Event State
BACnet Reliability
Boolean
BACnet Engineering Units
Real
Real
Read
Read
Read
Read/Write
Read
Read
Read
Read/Write
Read
Read
Read
Property Default Value Property Data Type Access
Object Identier
Object Name
Object Type
Preset Value
Status Flags
Event State
Reliability
Out Of Service
Number of States
State Text
MSV1
“Process Mode”
Multi-State Value
1
{0,0,0,0}
Normal
No Fault Detected
FALSE
3
“Pressure”, “Velocity”,
“Flow”
BACnet Object Identier
Character String
BACnet Object Type
Unsigned
BACnet Status Flags
BACnet Event State
BACnet Reliability
Boolean
Unsigned
BACnet Array[N] of
Character String
Read
Read
Read
Read/Write
Read
Read
Read
Read/Write
Read
Read
Property Default Value Property Data Type Access
Object Identier
Object Name
Object Type
Preset Value
Status Flags
Event State
Reliability
Out Of Service
Units
Max Pres Value
Min Pres Value
AV7
“Process Output Low”
Analog Value
Model Specic
{0,0,0,0}
Normal
No Fault Detected
FALSE
Mode Specic
Model Specic
Model Specic
BACnet Object Identier
Character String
BACnet Object Type
Real
BACnet Status Flags
BACnet Event State
BACnet Reliability
Boolean
BACnet Engineering Units
Real
Real
Read
Read
Read
Read/Write
Read
Read
Read
Read/Write
Read
Read
Read
Property Default Value Property Data Type Access
Object Identier
Object Name
Object Type
Preset Value
Status Flags
Event State
Reliability
Out Of Service
Units
Max Pres Value
Min Pres Value
AV8
“Process Output High”
Analog Value
Model Specic
{0,0,0,0}
Normal
No Fault Detected
FALSE
Mode Specic
Model Specic
Model Specic
BACnet Object Identier
Character String
BACnet Object Type
Real
BACnet Status Flags
BACnet Event State
BACnet Reliability
Boolean
BACnet Engineering Units
Real
Real
Read
Read
Read
Read/Write
Read
Read
Read
Read/Write
Read
Read
Read
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