157
10 Configuration
10.22 External digital inputs
Open:
Device menu
r
Configuration
r
External Digital Inputs r
External digital inputs 1 to 8
10.23 Flow
Open:
Device menu
r
Configuration
r
Flow-through
r
Flow-through 1 to 2
Configuration point Selection/
setting option
Explanation
Description
up to 15 text characters
Designation of the external digital input
Hold value
No
Yes
Nonvolatile storage of the last analog value re-
ceived when the device restarts
Alarm
Alarms for external digital inputs are used to monitor input-side digital sig-
nals.
The alarm settings for all digital device functions are explained together.
v
Chapter 10.9.3 "Digital signal alarms", Page 138
Configuration point Selection/
setting option
Explanation
Eingangsart
Inactive
Digital input 2
Digital input 3
Analog input
Selection of the signal source for the flow-
through measurement
Digital input 1/2:
Pulse frequency signals via
Digital inputs
Analog input:
A
n analog signal is specified in
the
configuration item "Analog signal".
Description
up to 15 text characters
Designation of the flow-through function
Analog signal
Selection from
Analog selector
only for "Analog input" as "Eingangsart":
Selection of the analog signal source as flow-
through signal
Measuring principle
Period measurement
3 to 300 Hz
Pulse counting
300 Hz to 10 kHz
only for "Digital input 2/3" as "Eingangsart":
Measurement method for determining the flow-
through
Pulse frequency signals are provided by paddle
wheel sensors, for instance.
Time base
0 to 9999 s
only for "Pulse counting" as "Measuring prin-
ciple":
Duration of a counting segment
The pulses counted within a counting segment
divided by the time base yields the pulse fre-
quency value.
With a setting of 0 s, the time base is 250 ms.
Содержание AQUIS touch P 202580
Страница 12: ...Content...
Страница 26: ...4 Identifying the device version 26...
Страница 29: ...29 5 Mounting Mounting depth with Ci conductivity sensor 283 3 mm 2 3 mm 36 mm 25 mm 23 2 mm...
Страница 32: ...5 Mounting 32...
Страница 64: ...7 Startup 64...
Страница 100: ...1 2 3 4 5...
Страница 107: ...107 8 Operation Example of a Quad View...
Страница 108: ...8 Operation 108...
Страница 114: ...9 Parameterization 114...
Страница 160: ...10 Configuration 160...
Страница 182: ...13 Calibrating a pH measuring chain 182...
Страница 196: ...16 Calibrating CR conductivity sensors 196...
Страница 206: ...17 Calibrating Ci conductivity sensors 206...
Страница 214: ...18 Calibrating universal inputs 214...
Страница 228: ...19 PC Setup Program 228...
Страница 319: ...319 20 Technical data...
Страница 320: ...20 Technical data 320...
Страница 321: ......