Knick Stratos Pro A2 Oxy Series Manual de usuario
T
he Art o
f
Measuring
.
Stratos Pro A2.. Oxy
Oxygen Measurement
Quickstart
Kurzübersicht............... 18
Guide rapide ................ 33
Inicio rápido ................. 48
Início rápido ................. 63
Quickstart Guide............3
Guida rapida................. 78
Latest Product Information: www.knick.de
2
HART: Typical Applications
8
9
17
+ out
- out 1
- out 2
A2...
4 ... 20mA
HART Terminal
8
9
17
+ out
- out 1
- out 2
+
-
Power supply
A2...
Uout
min 19V
250 Ohm
4 ... 20mA
HART Terminal
1
2
WG 21 5
6
HART Terminal
3
Quickstart
Measuring Mode
After the operating voltage has been connected, the analyzer auto-
matically goes to“Measuring“ mode. To call the measuring mode from
another operating mode (e.g. Diagnostics, Service):
Hold meas key depressed (> 2 s).
Depending on the conguration, one of the following displays can be
set as standard display for the measuring mode (see page 6):
• Measured value, time and temperature (default setting)
• Measured value and selection of parameter set A/B or ow
Measured value and tag number (“TAG”)
• Time and date
• Output currents
• Controller (4-wire devices only)
Upper display: controller output Y, lower display: setpoint
Note: By pressing the meas key in measuring mode you can view the
displays for approx. 60 sec.
The device must be congured for the respective measurement
task!
Sensoface indicator
(sensor status) Active
parameter set
(conguration)
Display indicates
OUT1: e.g.
process variable
Display indicates
OUT2: e.g.
temperature
enter key
Time (or ow)
Mode indicator
(measuring)
Hold meas key
depressed for calling
the measuring mode
(pressing once more
switches the display)
4
Keypad
Key Function
meas • Return to last menu level
• Directly to measuring mode (press > 2 s)
• Measuring mode: other display
info • Retrieve information
• Show error messages
enter • Conguration: Conrm entries,
next conguration step
• Calibration:
Continue program ow
menu • Measuring mode: Call menu
Arrow keys
up / down • Menu: Increase/decrease a numeral
• Menu: Selection
Arrow keys
left / right • Previous/next menu group
• Number entry: Move between digits
Sensocheck, Sensoface sensor monitoring
Sensocheck continuously monitors the sensor and its wiring.
Sensocheck is user-dened (default: O).
Sensoface provides information on the sensor condition.
The three Sensoface indicators provide information on
required maintenance of the sensor.
When Sensoface is“sad”, the display turns purple.
Pressing the info key shows an information text.
5
Display
MEMO SENS
1234 567 891011
171819202122
12
13
14
15
16
23
24
Signal colors (display backlighting)
Red
Red blinking Alarm (in case of fault: display values blink)
Input error: illegal value or wrong passcode
Orange HOLD mode (Calibration, Conguration, Service)
Turquoise Diagnostics
Green Info
Purple Sensoface message
1 Temperature
2 Sensocheck
3 Interval/response time
4 Sensor data
5 Not used
6 Limit message:
Limit 1 or Limit 2
7 Alarm
8 Service
9 Parameter set
10 Calibration
11 Digital sensor
12 Waiting time running
13 Info available
14 Hold mode active
15 Main display
16 Secondary display
17 Proceed using enter
18 Not used
19 Diagnostics
20 Conguration mode
21 Calibration mode
22 Measuring mode
23 Sensoface
24 Unit symbols
6
Display in Measuring Mode
enter key
meas key
By pressing meas briey you can
step through further displays such as
tagnumber (TAG) or ow (L/h).
These displays are turquoise.
After 60 sec they switch back to the
main display.
Press enter to
select a display as
MAINDISPLAY –
the secondary display shows
“MAINDISPLAY – NO“.
Use the UP / DOWN arrow keys to
select“MAIN DISPLAY – YES“
and conrm by pressing enter.
The display color changes to white.
This display is now shown in
measuring mode.
The MAIN DISPLAY is the display
which is shown in measuring mode.
To call the measuring mode from
any other mode, hold the meas key
depressed for at least 2 sec.
approx. 2 s
7
Selecting the Mode / EnteringValues
To enter a value:
5)Select numeral: left / right arrow key
6)Change numeral: up / down arrow key
7)Conrm entry by pressing enter
To select the operating mode:
1)Hold meas key depressed (> 2 s) (measuring mode)
2)Press menu key: the selection menu appears
3)Select operating mode using left / right arrow key
4)Press enter to conrm the selected mode
Selection menu
Selected mode
(blinks)
1
4
3
2
57
6
8
Display of calibration data
Display of sensor data
Self test: RAM, ROM, EEPROM, module
Logbook: 100 events with date and time
Display of direct, uncorrected sensor signals
Display of software version, model designation, serial number
Manual activation of HOLD mode, e.g. for sensor replacement.
The signal outputs behave as configured (e.g. last measured value, 21 mA)
Calibration in water/air (as configured)
Zero adjustment
Product calibration
Adjustment of temperature probe
Configuring parameter set B: See previous page
Configuring parameter set B
Display of measured values for validation (simulators)
Current source, output 1
Current source, output 2
Relay test (A4... only)
Controller: man. specication of controller output (A4... only)
Specifying access codes for operating modes
Reset to factory setting
Enabling an option via TAN
(Access via
code, factory
setting:
5555)
Operating Modes / Functions
Pressing the menu key (down arrow) opens the selection menu.
Select the menu group using the left/right arrow keys.
Pressing enter opens a menu item. Press meas to return.
Meas. mode
(main display
selectable)
TAG display A4... only: Controller
parameter display
(if configured)
after 60 s after 60 s
CLK display
9
Overview of Configuration
The conguration steps are assigned to dierent menu groups.
With the left/right arrow keys you can jump between the individual
menu groups.
Each menu group contains menu items for setting the parameters.
Pressing enter opens a menu item. Use the arrow keys to edit a value.
Press enter to conrm/save the settings.
To return to measurement: Hold meas key depressed (> 2 s).
Select
menu group Menu group Code Display Select
menu item
Sensor selection
Menu item 1
...
Menu item ...
Current output 1
Current output 2
Compensation
Control input
(parameter set or flow
measurement)
Alarm mode
Stratos Pro A411 only:
Relay outputs
Stratos Pro A411 only:
Cleaning
Setting the clock
Tag number
10
Calibration
Calibration adapts the device to the individual sensor characteristics.
It is always recommended to calibrate in air.
Compared to water, air is a calibration medium which is easy to
handle, stable, and thus safe. In the most cases, however, the sensor
must be removed for a calibration in air.
When dealing with biotechnological processes which require sterile
conditions, the sensor cannot be removed for calibration.
Here, calibration must be performed with aeration directly in the
process medium (e.g. after sterilization).
In the eld of biotechnology, for example, often saturation is mea-
sured and calibration is performed in the medium for reasons of
sterility.
For other applications where concentration is measured (water control
etc.), calibration in air has proved to be useful.
Note:
• All calibration procedures must be performed by trained person-
nel. Incorrectly set parameters may go unnoticed, but change the
measuring properties.
• If a 2-point calibration is prescribed for trace-oxygen measurement,
the zero calibration should be performed prior to slope calibration.
See main user manual.
Common combination: process variable / calibration mode
Measurement Calibration Application
Saturation Water Biotechnology; sensor cannot be
removed for calibration (sterility)
Concentration Air Waters, open basins
In the following, the calibration procedure for a slope calibration in air
is described. Of course, other combinations of process variable and
calibration mode are possible.
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