Knick Stratos Pro A401B PH, User Manual

Page: 9 / 196

9
I input
The analog (0) 4 ... 20 mA current input can
be used for external temperature compen-
sation (TAN required).
See page 88.
Control inputs
HOLD
(floating digital control input)
The HOLD input can be used for external
activation of the HOLD mode, see page 44.
Introduction
5
6
13
11
12
Current
input
HOLD
input
CONTROL
input
CONTROL
(floating digital control input)
The CONTROL input can be used either for
parameter set selection (A/B) or for flow
monitoring, see page 90.
The “Wash” contact can be used for
indicating the active parameter set
(see next page).
Power supply
Current is provided through a universal power supply
24 ... 230 V AC/DC, AC: 45 ... 65 Hz.
Options
Additional functions can be activated by entering a TAN (page 146).