KROHNE OPTISENS PAC 050 EN - Manual (Page 6)

Manual OPTISENS PAC 050
OPTISENS PAC 050 6
0.4 Features
0.4.1 Device
0.00…14.00 pH Measuring ranges
-1500…+1500 mV
Temperature measuring ranges -30.0…+140.0°C
Display measured value with dimension
temperature with dimension
status display sensor, calibration, controller & alarm
Temperature compensation manually or automatically with Pt100 or Pt1000
Calibration automatic recognition of the calibration solutions in arbitrary order
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 0.00…14.00 pH or 0…1500 mV
P range X
P
0.00…14.00 pH or 0…1500 mV
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,
impulse or permanent signal
Dosage control 0…2000 s
0.4.3 Connections
Relays
3 potential-free contacts (2x controller, 1x alarm)
6 A, 250 V, max. 550 VA
Analog output 0/4…20 mA galvanically isolated
max. burden 500 Ohm
Analog inputs 1 measuring input for pH or ORP
1 measuring input for Pt100 or Pt1000
Digital input external controller stop or lack-of-water indication
Serial interface (Option) RS 485, Baud rate 9600, data format 8 Bit,
1 start and 1 stop bit, no parity