Vaisala GMW95 - Operation Altitude Object

User's Guide _______________________________________________________________________
94 ___________________________________________________________________ M211659EN-C
Operation Altitude Object
Set operating altitude to apply pressure compensation to CO
2
measurement, and to improve the calculation accuracy of pressure
dependent humidity parameters.
NOTE
Pressure and Altitude objects are linked together. If Present Value in one
object is changed, Present Value in another object is changed
accordingly.
Table 39 Operation Altitude Object Parameters
Property
Data type
Writable
Value or Initial Value
Object Identifier
BACnet Object Identifier
No
00 80 00 02 (hex)
Object Type = 2,
Instance = 2
Object Name
Character String
No
"OPER Altitude"
Object Type
BACnet Object Type
No
2 (Analog Value)
Present Value
Real
Yes
0.0
Description
Character String
No
"Operating Altitude"
Units
BACnet Engineering Units
Yes
31 (meters) or 33 (feet)
Status Flags
BACnet Status Flags
No
0 (FAULT == FALSE)
Event State
BACnet Event State
No
0 (NORMAL, does not
change)
Out of Service
BOOLEAN
No
0 (FALSE)
Table 40 Status Flags
Flag
State
Cause
IN_ALARM
FALSE
Always FALSE
FAULT
FALSE
Always FALSE
OVERRIDDEN
FALSE
Always FALSE
OUT_OF_SERVICE
FALSE
Always FALSE