Daniel 3812 Liquid Ultrasonic Flow Meter Installation Manual
Section 3: Electrical installation
3-9000-765 Rev H
June 2017
CPU Module labeling and LED indicators
53
3.5.1
CPU Module labeling and LED indicators
The meter’s metrology mode and the status of the data transfer from the Acquisition Module to
the CPU Module is indicated via light-emitting diode (LED) status indicators. The Write PROT.
switch protects the meter’s configuration,
Figure 3-3 CPU Module labeling and LED indicators
A.
B.
C.
D.
E.
A. Acquisition/Measurement mode
B. Power
C. RX (RS-485/RS-232) - receiving data
D. LED 4 - not used
E. LED 5 - not used
F. TX (RS-485/RS-232) - transmitting data
F.
G.
G. Link (Eth1 Link) - user Ethernet connection