Section 9 Replacement Parts And Accessories - Hach SC4500 User Manual

Problem
Time synchronization
OFF
NTP service
unreachable
The Claros icon stays
off. The Claros
connection icon shows
crossed out.

Section 9 Replacement parts and accessories

Personal injury hazard. Use of non-approved parts may cause personal injury, damage to the
instrument or equipment malfunction. The replacement parts in this section are approved by the
manufacturer.
Note: Product and Article numbers may vary for some selling regions. Contact the appropriate distributor or refer to
the company website for contact information.
Possible cause
The controller cannot
access the NPT internet
service to get the clock
automatically
synchronized.
The controller has Claros
enabled but there is no
access to internet.
The controller cannot
access the NPT internet
service to connect to
Claros.
No access to internet
No access to Claros
W A R N I N G
Make sure that there are no restrictions to external access
in the controller network.
Contact your IT department and make sure that the
network has access to the internet NTP service.
If the controller does not connect to Claros, go to Controller
> Connectivity > Claros and disable Claros. Then, add the
date and time manually in the controller settings.
Make sure that the controller connects to the internet.
Examine the controller connectivity.
Make sure that there are no restrictions to external access
in the controller network.
Contact your IT department and make sure that the
network has access to the internet NTP service.
Make sure that UDP port 123 is open and Pool.ntp.org
address is approved in the network.
Cellular internet access:
• Examine the controller connectivity. Refer to
instrument information
• Examine the cellular signal strength. Move the USB box
to a location with higher signal strength.
• Examine the SIM card settings (provider, APN etc.).
• Make sure that prepaid SIM card has credit.
• Make sure that the SIM card data volume is not
exceeded.
Wi-Fi internet access:
• Examine the controller connectivity. Refer to
instrument information
• Examine the Wi-Fi signal strength. Move the USB box
to a location with higher signal strength.
• Use another device to make sure that WiFi access point
is enabled.
• Make sure that the correct credentials were used in the
WiFi configuration. Refer to
on page 26.
LAN internet access:
• Examine the controller connectivity. Refer to
instrument information
Make sure that the sensors and devices are correctly
connected and provisioned in Claros.
Solution
Show the
on page 43.
Show the
on page 43.
WiFi network connection
Show the
on page 43.
English 47