Omron HN-290T Instruction Manual page 9

2. Before Taking a Measurement
2.5 Confirm if the device is successfully connected.
When the unit is connected successfully to the Telehealth service receiver,
the connection symbol (
Wait 10 seconds until the power is off.
When "Err" appears, see "Connecting failure" in
section 6.2 for more detail.
) and "OK" symbol will appear on the display.
9