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Description of the signal inputs and outputs
☞
Only connect the signal inputs "Start", "Stop", "IN1" and "IN2" with
volt-free contacts
!
Start
external analysis start
Stop
external analysis stop
Function
Type of contact
Test time
Action
Start
external analysis start
(e.g. from the process controller)
normally open
volt-free!
none
In EXTERNAL operating mode an
analysis is started by triggering a contact
at the input
Stop
external analysis stop
(e.g. via flow controller or process
controller)
programmable
normally closed/
normally open
volt-free!
none
As long as the contact at the input is
'open' or 'closed', no analyses are
carried out.
"M"
➔
BASIC PROGRAM
➔
PROGRAM VALUES
➔
INPUT STOP
IN1
and
IN2
universal inputs
Function
Type of contact
Test time
Action
IN1
external measuring point switch-over
(2 measuring points
externally
programmed)
programmable
normally closed/
normally open
volt-free!
none
As long as the contact at the input is
'open' or 'closed', analyses are carried
out from measuring point 2.
IN2
Water meter input
normally open
volt-free!
none
Quantity recording for starting an
analysis
"M"
➔
BASIC PROGRAM
➔
PROGRAM VALUES
➔
INPUT IN1
OUT
interface output (optional)
Function
Connection
Test time
Action
Programmable interface
0 - 20 mA
4 - 20 mA
max. load 500
Ohms
-
programmable
Measured value measuring point 1 or 2
Serial interface RS 232
serial bus
(2-wire cable)
-
See description of the interface card
RS910
Change the function of the output by exchanging the plug-in circuit board.
"M"
➔
BASIC PROGRAM
➔
PROGRAM VALUES
➔
INTERFACES
