KROHNE OPTISENS AAC 050 EN - Manual (Page 6)

Manual OPTISENS AAC 050
OPTISENS AAC 050 6
0.4 Features
0.4.1
Device
0.00…4.00 mg/l Cl2 free Chlorine
0.00…20.00 mg/l Cl2 free Chlorine
0.00…4.00 mg/l O3 Ozone
0.00…4.00 mg/l TCl2 total Chlorine
0.00…4.00 mg/l ClO2 Chlorine dioxide
0.00…20.00 mg/l O2 Oxygen
0.000…9.999 mg/l O2 Oxygen
Measuring ranges
0.0…100.0 mg/l H2O2 Hydrogen peroxide
Temperature range -30.0…+140.0°C
Flow 5.0…30.0 l/h
Display measured value with unit;
temperature with unit;
status display sensor, calibration, controller & alarm
Temperature compensation manual or automatic with Pt100 or NTC
Calibration 1-point calibration; calibration in air for Oxygen
Cleaning (option) Automatical recognition if connected
0.4.2 Controller
Set points
2 set points with adjustable direction
Controller types ON/OFF controller with hysteresis
P controller as Pulse-Pause-, Impulse-Frequency- or steady controller
PI controller as Pulse-Pause-, Impulse-Frequency- or steady controller
Hysteresis adjustable within the measuring range
P range X
P
adjustable within the measuring range
Integral time T
N
0…2000 s
Least pulse 0.1…9.9 s
Pulse+ pause time 02…99 s
Impulse frequency 00…72 equiv. to 0...7200 pulses/h
Turn-on delay 0…200 s
Alarm function min. and max. limit and onset delay, power failure alarm,
Dosage control 0… 90 min
0.4.3
Connections
Relays
3 potential-free contacts (2x controller, 1x alarm)
6 A, 250 V, max. 550 VA
Analog output 1x 0/4…20 mA galvanically isolated
max. loading 500 Ohm
Analog inputs 1 measuring input for Cl2, TCl2, ClO2, O2, O3 or H2O2,
1 measuring input for Pt100 or NTC
Digital input external controller stop or lack-of-water indication
Serial interface (Option) RS485, Baud rate 9600, data format 8 Bit,
1start and 1stop bit, no parity