Operation; Initial Start-Up - Grundfos Conex DIA-G Montage- Und Betriebsanleitung

11. Operation

11.1 Initial start-up

The sensor must be replaced after a gas
eruption that has exceeded the measuring
Caution range. Do not expose the sensor to a
higher gas concentration, even during
start-up and test.
If a sprinkling installation is connected,
first shut off the water supply. On initial
start-up, the relevant limit value may be
Note
exceeded during the sensor start-up
routine, which could trigger the sprinkling
installation.
Preparations for start-up
1. Check that all electrical connections are correct.
2. Switch on the power supply.
3. Familiarise yourself with the operation of the
®
Conex DIA-G.
4. Make all necessary settings, and note them
down.
5. Check that all settings are correct.
6. Check that all connected warning and safety
equipment is ready for operation.
– The device is now ready for operation.
Gas sensor start-up
1. Connect the sensors before switching on the
device.
2. By default, the device starts with the following
settings:
– Sensor 1: Cl sensor 91835237 (314-011)
2
(amperometric gas sensor)
– Sensor 2: "Off".
3. During setup, select the sensors used:
– Main menu
– Setup
– Sensor 1 or 2.
• If you are using amperometric sensors, select the
"New sensor" menu in the sensor menu. This
indicates to the device that a new sensor is being
used. The installation and replacement data in
the "Sensor data" service menu are updated
automatically. At the end of the sensor's service
life, the device will show the message "Warning
Sensor change".
– Main menu
– Sensor 1 or 2
– New sensor.
• If you are using potentiostatic sensors, the device
detects automatically that a new sensor is being
used. The sensor data is read and can be viewed
in the service menu under "Sensor data".
On the display, the icon "S" appears in inverted
format as soon as a sensor interface is connected
and detected by the Conex
Cl
2
0.30
ppm
S
®
DIA-G:
27