Hach SC4200c, Basic User Manual, Page: 20 / 88

The sensor status LED shows the condition of each sensor. Refer to Table 6 . Refer to
Troubleshooting on page 21 to find possible causes and solutions for usual problems.
Table 5 Icon descriptions
Icon Description Status
3G/4G signal strength All off: no signal
All on: best signal
Cloud connection (MSM) Off: no internet connection
Red on: Correct internet connection, but incorrect cloud connection.
Blue on: Correct cloud connection. Controller connected to MSM.
Flashes blue: connecting to cloud
USB connection Off: no USB flash drive connected
Blue on: USB flash drive connected
Flashes blue: data transmission
WiFi connection Off: no WiFi connection
Blue on: Controller connected to a WiFi access point.
Table 6 Sensor Status LED descriptions
LED status Description
Blue on The sensor is in operation with no warnings, errors or reminders.
Flashes blue Sensor connection to cloud in progress.
Amber on The sensor is in operation with active warnings or reminders.
Flashes amber (1-channel) The outputs of the channel are on hold.
Flashes amber (2-channel) The channels of the two sensors are on hold or no sensors are connected on the
two channels.
Red on The measurement value is not correct because of sensor error.
Flashes red Sensor connection issue
10
The sensor type is not supported by the cloud.
Off No connected sensor (if the sensor on the other channel is connected)
Startup
Connect the power cord to an electrical outlet with protective earth ground or set the circuit breaker
for the controller to on.
Refer to the expanded user manual to connect and configure the web server application, connect the
instrument to a network and configure the network settings.
Operation
Use the MSM software to interact with the connected measurement devices. Contact Hach Technical
Support to get a Claros Mobile Sensor Management account for the first time.
Note: Refer to the manufacturer's website to find more information about the MSM software.
Refer to the expanded user manual for data download and firmware update procedures.
10
Make sure that only two sensors are installed in the controller. Refer to Troubleshooting
on page 21.
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