Emerson Oxymitter 5000, Instruction Manual

Page: 185 / 226

Instruction Manual
IM-106-350, Rev 2.2
July 2008
Oxymitter 5000
http://www.raihome.com
Appendix C Fieldbus Parameter Description
FIELDBUS PARAMETERS
Parameter Mnemonic Valid Range
Initial
Value
Units Description
Parameter
Number
ALARM_POINT_LOW 0.0-40.0 % O2 This is the point at which the Low O
2
alarm
will become active.
37
ALERT_KEY See Function Block Specification, part 1.
FF-890, page 50.
4
AUTOCAL_ENABLED 0: Not enabled
1: Enabled
Enumerated This parameter enables automatic
calibrations. 46
AUTOCAL_INTERVAL 0-9999 Hours This is the time between automatic
calibrations, in hours. 47
BLOCK_ALM See Function Block Specification, part 2.
FF-891, page 41. 8
BLOCK_ERR See Function Block Specification, part 2.
FF-891, page 41 6
BUILD_DATE 0 N/A This is the date that the Oxymitter software
was built. 62
BUILD_NUMBER 0-65535 0 N/A This is the build number of the Oxymitter
software 60
CAL_CONSTANT
± 20.0 mV
This parameter represents the constant (off-
set) value used in the calculation of convert-
ing the sensor voltage to an O
2
value. The
value of this parameter may be manually
entered or calculated during a sensor cali-
bration.
27
CAL_GAS_TIME 60-1200 Sec This is the length of time test gases are
applied to the O2 probe before each
measurement of the calibration cycle.
22
CAL_LAST_
CONSTANT ± 20.0 mV The constant from the last successful
calibration. 29
CAL_LAST_SLOPE 34.5-57.5 mV/Decade The slope from the last successful
calibration. 28
CAL_POINT_HI 0.0-40.0 % O2 This is the actual value of the gas being
applied during the high test gas phase of a
calibration.
17
CAL_POINT_LO 0.0-40.0 % O2 This is the actual value of the gas being
applied during the low test gas phase of a
calibration.
18
CAL_PURGE_TIME 60-1200 Sec This is the length of time after a calibration is
complete before the O2 value status returns
to normal.
23
CAL_SENSOR_
IMPEDANCE 0-10000 Ohms This is the sensor impedance value
measured at the time of the last calibration. 25