Stratos®Pro A4... PH User Manual

Control inputs
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Current
HOLD
input
input
CONTROL
input
Introduction
I input
The analog (0) 4 ... 20 mA current input can
be used for external temperature compensation
(TAN required).
See page 90.
HOLD
(floating digital control input)
The HOLD input can be used for external
activation of the HOLD mode, see page 46.
CONTROL
(floating digital control input)
The CONTROL input can be used either for
parameter set selection (A/B) or for flow
monitoring, see page 92.
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 151).
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