Grundfos Conex DIA-G Montage- Und Betriebsanleitung Seite 43

11.9.3 Setting the alarm delay
Main menu > Sensor 1 (Sensor 2)
Submenu 1
Alarm delay
The menu structure for sensor 1 and sensor 2 is
identical.
The alarms for limit value 1, limit value 2 and/or the
sensor test assigned in the "Setup" submenu (see
11.8.5 Assigning and setting the alarm relay
37) can be output with a delay. The alarm relay is
then switched with the set delay independently of the
relevant limit value relay.
For the alarm, a delay from 0 to 180 seconds can be
set.
• Alarm S1/S2
– xxx sec delay.
The alarms must be assigned to the
Note
relevant limit values or sensor tests in the
"Setup" menu!
Submenu 2
xxx sec delay
on page
11.9.4 Replacing/changing a sensor
Message: Change sensor
Faulty sensors must be replaced! The
potentiostatic sensor or the sensor disc of
the amperometric sensor must be replaced
in the following cases:
– after the expected life of the sensor
element
Caution
– after the sensor has been exposed to
a gas concentration that has
exceeded the measuring range
– in case of damages.
See the manual of the gas sensors.
Amperometric sensors: The expected life of the
sensor is determined when a sensor is installed,
following confirmation in the "New sensor" menu.
If the replacement of an amperometric
sensor is not confirmed in the "New
sensor" menu, the "Change sensor"
Caution
message cannot be displayed at the right
time. There is a risk of malfunction due to
expired sensors!
Potentiostatic sensors: The calibration date in the
sensor chip (date of manufacturing) is used to
monitor the expected life of the sensor element.
If the expected life is exceeded, the following
message appears:
Sensor 1
Warning
Change sensor
• This message must be confirmed using [OK].
Amperometric sensors
The "Change sensor" message is displayed for
amperometric sensors once the expected life has
elapsed, if the date of the sensor installation was
confirmed in the "New sensor" menu.
The sensor must not be installed after the
Note
maximum storage time.
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