3
OPERATION
2. OPERATION
Please read all instructions before operating the SKALA Mobile app and the
AQUALAB3 meter to ensure everything performs to its full potential.
Please observe the following considerations carefully.
• Only allow personnel who have been qualified by METER to carry out service work on the
electrical components.
• Only operate this instrument with the main power voltage specified (100 to 240 VAC at
50 to 60 Hz).
• Plug the instrument into a grounded outlet or power strip.
• Only use the fuse type and rating specified for this instrument (Section3.1).
If the instrument is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
PRECAUTIONS
METER instruments are built to the highest standards, but misuse or neglect may damage
the device and possibly void the manufacturer’s warranty. Before using the AQUALAB 3,
follow the recommended user instructions and arrange proper protections to safeguard the
instrument from damage.
2.1 SYSTEM NETWORK REQUIREMENTS
METER Group recommends the following as the network requirements for the SKALA
deployment environment (the environment where the NEXUS and Apple
®
iPad
®
mobile digital
device are installed). Implement the security controls that are appropriate for the sensitivity
of the data.
• Internet connection—standard 1 GbE network or faster.
• The devices must be able to connect to the following destinations using the same network:
skalacontrol.com—the primary endpoint for the SKALA server, hosted by METER Group.
websocket.skalacontrol.com—the functional endpoint for the websocket
communications layer.
*.zoho.com—utilized for the METER secure remote support tool.
*.skalanexus.com—connection between the iPad and the NEXUS.
• The iPad and NEXUS devices must be able to communicate over ports listed in Table 1.
METER typically recommends placing them on the same subnet to easily facilitate
communication. However, if the network team desires, utilizing a network address
translation (NAT) to bridge subnets is acceptable.
Table 1 lists the ports that must be available for the SKALA system to function properly.
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