Hach CA440EX Serie Bedienungsanleitung Seite 15

Figure 5 Electrical wiring overview—DC power and 4–20 mA analog output
Section 4 Set the power to on
1. Make sure that the sensor cables are connect to the sensor.
2. Set the power switch to "ON".
The field transmitter automatically connects to a cellular network.
3. Wait 2 to 3 minutes.
4. Make sure that the status LED on the field transmitter is green.
Note: To conserve battery life, the data transmission frequency of the field transmitter changes after the field
transmitter is set to on. Refer to Table 2 on page 5.
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