Burkert Type 8620 User Manual
Page 12
mxCONTROL Type 8620
Page 12
Abbreviation
Explanation
CORROSION_DISPLAY
Corrosion Display Module
Cut-
Lower CutOff threshold (Module "COMMON_PID")
Cut+
Upper CutOff threshold (Module "COMMON_PID")
D-
Max. negative set point change per minute, falling (Delta-)
D+
Max. positive set point change per minute, rising (Delta+)
Dbnd
Deadband - to prevent vibration of the actuator
DigIn 1 … 4
Digital input 1 … 4
Dos1 … Dos8
Biocide timer settings (8 per day per channel)
FA AD-Fault
Fc
Calibration Data Fault
FC Configuration
Fault
fF
Flow switch: “No Flow”
FI Input
Fault
Filter
Filter stage (for Low Pass Filter)
Fmax
Maximum actuator output pulse rate per minute or per hour
fo
forced by other modules
Freq-
Lower frequency value of a frequency range
Freq+
Upper frequency value of a frequency range
Fr Friday
fS
System switch: “Stand-by”
FS
Sensor Fault; Full scale (in connection with Technical Specification)
FSOR
Flow switch override
Hyst
Switching hysteresis set in engineering units
HO
Process Value state, Value Hold during User Calibration of 4-20mA inputs
Inv
Inversion of the sense of action of a module/signal
IS Instrumentation
Supply
Kp
Gain/amplification factor (in [% control output/PV unit])
Kx
Ratio factor for internal set point calculation
Lim-
Lower output limit in %
Lim+
Upper output limit in %
Ma
Manual (operation) mode
Mo Monday
MONITOR_PV
Module - monitoring only a Process Value PV (data logging)
Mon PV
Module - monitoring only a Process Value (data logging) - short name
MOT Maximum
Output
Timer
MPY
Mils Per Year
MTPB
Maximum pre-bleed timer
µMPY
Micro Mils Per Year
nA
Input not active
O2_SCAV_CTRL_RATIO
Dosing of O2-absorption media based on flow and temperature
O2SCR
Dosing of O2-absorption media based on flow and temperature - abbrev.
OF
Output fault of the 4…20 mA outputs
OPEN_PROP
Dosing proportionally to process value
OpProp
Dosing proportionally to process value - abbrev.
ORP
Oxidising Redox Potential (Redox)
PB
Pre-Bleed Limit of biocide dosing module in connection with the
COND_CONTROL and COND_PI modules
PB ratio
Pre-Bleed Ratio Limit of biocide dosing module - only in connection with the
modules COND_CONTROL_RATIO and COND_PI_RATIO
PFM
Pulse Frequency Modulation
pH-AC
pH PI Module with selection of acid and caustic pump (abbrev.)
pH-A/C
pH PI Module with selection of acid or caustic pump (abbrev.)