English (GB)
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11.9.3 Setting the 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
on page
) 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.
11.9.4 Replacing/changing a sensor
Message: Change sensor
Amperometric sensors: The expected life of the
sensor is determined when a sensor is installed,
following confirmation in the "New sensor" menu.
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:
•
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.
Main menu > Sensor 1 (Sensor 2)
Submenu 1
Submenu 2
Alarm delay
xxx sec delay
Note
The alarms must be assigned to the
relevant limit values or sensor tests in the
"Setup" menu!
Caution
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
– 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.
Caution
If the replacement of an amperometric
sensor is not confirmed in the "New
sensor" menu, the "Change sensor"
message cannot be displayed at the right
time. There is a risk of malfunction due to
expired sensors!
Sensor 1
Warning
Change sensor
Note
The sensor must not be installed after the
maximum storage time.
