Hach-Lange RTC103 N-Module - Manual (Page 52)

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Parameterization and operation
4.15 Displayed measurement values and variables
The following measurement values and variables are shown on
the SC1000 display and transferred via fieldbus.
Parameter Unit Description Note
RTC103 N-Module, 1-channel
MEASUREMEN 1 Qin 1 L/s Flow rate aeration lane
MEASUREMEN 2 Qrec 1 L/s
Flow rate internal recirculation or return
sludge
ACTUAT VAR 3 NffO 1 mg/L
DO demand calculated for influent
NH
4
-N load
ACTUAT VAR 4 NfbO 1 mg/L
Additional DO demand calculated from
NH
4
-N effluent concentration
always 0 if no effluent NH
4
-N
measurement available
ACTUAT VAR 5 Osetp 1 mg/L
DO Setpoint calculated from sum NffO
+ NfbO
ACTUAT VAR 6 Oreg 1
Internal calculation value for DO
control always 0 if RTC103 N without DO
control
ACTUAT VAR 7 B_S 1 Stage Aeration stage (B_S1)
always 0 if RTC103 N without DO
control
ACTUAT VAR 8 A_S 1 % Aeration VFD (A_S 1)
always 0 if RTC103 N without DO
control
RTC103 N-Module, 2-channel
MEASUREMEN 1 Qin 1 L/s Flow rate aeration lane 1
MEASUREMEN 2 Qrec 1 L/s
Flow rate internal recirculation or return
sludge lane 1
MEASUREMEN 3 Qin 2 L/s Flow rate aeration lane 2
MEASUREMEN 4 Qrec 2 L/s
Flow rate internal recirculation or return
sludge lane 2
ACTUAT VAR 5 NffO 1 mg/L
DO demand calc.from influent
load(NffO 1)
ACTUAT VAR 6 NfbO 1 mg/L
Additional DO demand calculated from
NH
4
-N effluent concentration
always 0 if no effluent NH
4
-N
measurement available
ACTUAT VAR 7 Osetp 1 mg/L DO Setpoint (Osetp1)
ACTUAT VAR 8 Oreg 1 Internal calculation value Oreg1
always 0 if RTC103 N without DO
control
ACTUAT VAR 9 B_S 1 Aeration stage (B_S1)
always 0 if RTC103 N without DO
control
ACTUAT VAR 10 A_S 1 Aeration VFD (A_S 1)
always 0 if RTC103 N without DO
control
ACTUAT VAR 11 NffO 2 mg/L
DO demand calc.from influent load
(NffO 2)
ACTUAT VAR 12 NfbO 2 mg/L
Additional DO demand calculated from
NH
4
-N effluent concentration
always 0 if no effluent NH
4
-N
measurement available
ACTUAT VAR 13 Osetp 2 mg/L DO Setpoint (Osetp2)
ACTUAT VAR 14 Oreg 2 Internal calculation value Oreg2
always 0 if RTC103 N without DO
control
ACTUAT VAR 15 B_S 2 Stage Aeration stage (B_S2)
always 0 if RTC103 N without DO
control
ACTUAT VAR 16 A_S 2 % Aeration VFD (A_S 2)
always 0 if RTC103 N without DO
control