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  • DEUTSCH, seite 14
1. Push MENU and select SENSOR MENU>APA6000 #1 APA
6000>MEASUREMENT OPTIONS.
2. Select an option.
Option
Description
CHEMICAL FORM
Select the chemical form shown on the display.
SAMPLE
Set the sample sequence. This option is only available
SEQUENCE
when the number of sample streams is set to 2. Refer
to Sensor diagnostics in the maintenance manual.
DISPLAY
Not used
UNITS
Select HOLD OUTPUTS. Select the units shown for
the parameter—mg/l, ug/l, ppm, ppb, etc.
Schedule automatic cleanings
The manufacturer recommends that a cleaning cycle is done:
• High range hardness, low range hardness and alkalinity analyzers—
once a day
• Low range ammonia and ammonia/monochloramine analyzers—every
12 hours
A cleaning cycle dispenses cleaning solution through all the wetted parts
of the analyzer. Cleanings keep the analyzer free of contamination
buildup.
Note: The auto refresh function is not used.
1. Push MENU and select SENSOR MENU>APA6000 #1 APA
6000>SOLUTIONS AND CLEANING>INSTRUMENT CLEAN.
2. Set the schedule for automatic cleanings—4, 6 or 12 HOURS or
EVERY DAY (default). The first cleaning cycle of the day is done at
12:00 am (00:00 on a 24-hour clock).
Configure the alarms (optional)
Configure Alarm A and Alarm B as set point alarms or to occur when a
sensor warning or sensor alarm occurs. When an Alarm A or Alarm B
occurs, it is recorded in an alarm log. If the flash on alarm setting is
enabled, the screen also flashes.
8 English
Alarm A and Alarm B each have an associated alarm relay that
energizes when the alarm occurs. Refer to
on page 9 to enable the alarm relays.
Note: The other alarms (AL 1–AL 12) can also be configured and will occur even if
the alarm relay associated with the alarm is not used or present.
1. Push MENU and select SENSOR MENU>APA6000 #1 APA
6000>ALARM SETUP.
2. Select the alarm. For example, select AL A (Alarm A) or AL B (Alarm
B).
3. Select TYPE, then select the alarm type.
Option
Description
Unconfigured
Disable the alarm.
(default)
High
Set the alarm to occur when a measurement higher
than the set point value (mg/L) occurs.
Low
Set the alarm to occur when a measurement lower
than the set point value (mg/L) occurs.
Rate
Set the alarm to occur when the measurement rate
change (mg/L per hour) is higher than the set point
value.
Sensor Warning
Set the alarm to occur when a sensor warning is
active.
Sensor Alarm
Set the alarm to occur when a sensor alarm is active.
4. If High, Low or Rate is selected, select the measured parameter to
monitor and the set point value.
Option
Description
MEASUREMENT Select the measurement parameter (e.g., 1 HR HAR for
high range hardness) to monitor.
SET POINT
Enter the set point value.
Alarm relay setup

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