Icons Used In Illustrations; Product Overview - Hach CA440EX Serie Bedienungsanleitung

Cellular model Frequency bands
u-blox SARA-U201 GSM: 850/900/1850/1900
(LXV449.98.01000)
UMTS/HSPA (WCDMA):
800/850/900/1900/2100
Nordic nRF9160 Cat-M1 Bands: B1, B3, B8, B20, B66
(LXV449.98.01010)
An optional external cellular antenna is available for use with the CAx440EX field transmitter
(maximum gain 6 dBi).
Note: To keep regulatory compliance, use only the external antenna for the CAx440EX field transmitter that is
approved by the manufacturer (LXZ449.99.00009).

2.4 Icons used in illustrations

User supplied parts

2.5 Product overview

The CAx440EX field transmitter is used with a GS1440 or GS2440EX sensor. The field transmitter
supplies power to the sensor through the Power/4–20 mA sensor cable and receives the sensor
measurements through the Power/4–20 mA and RS-232 sensor cables.
The field transmitter transmits the hydrogen sulfide and temperature measurements (RS-232 signal)
to a cloud service called Hach H
In addition, the field transmitter can supply the sensor measurements (4–20 mA analog output) to a
device (e.g., SCADA or PLC).
Figure 1 and Figure 2
Figure 1 External view
1 Case
2 Latches (2x)
3 Pressure relief valve for case
8 English
Table 3 Cellular options
S Data. Refer to
2
give an overview of the field transmitter.
Maximum power Data transmission
GSM: 27 dBm
WCDM: 24 dBm
23 dBm
Do one of these options
Use Hach H2S Data on page 15.
4 Status LED (Table 4)
5 Mounting anchors (4x)
3G UMTS/ HSPA GSM/ GPRS
4G (LTE Cat M1)