3.6.7
External power source connection and fuse
Located inside the Transmitter Electronics Enclosure is a connector for a user-provided
external power source, a 2 Ampere fuse and a 24V loop power connection for ultrasonic
meter analog outputs, generator temperature or pressure transmitter devices. The
current is limited to 88mA.
Figure 3-8: CPU Module power source connections
A. Power In connector (main power)
B. 24V Loop power
C. 2 Ampere fuse (used for the main power input)
3.7
Security seal installation
Security seals protect the integrity of the meter metrology and prevent tampering with
transducer assemblies. The following sections detail how to properly seal the Daniel 3814
Liquid Ultrasonic Flow Meter after commissioning. The security seal wires are
commercially available.
Be sure to set the WRITE PROT. switch on the CPU Module to the
ON
position prior to
sealing the enclosure.
3.7.1
Sealing the Transmitter Electronics Enclosure
Use the following instructions to install the security seal wires on the Transmitter
Electronics Enclosures.
Electrical Installation
Installation manual
May 2019
3-9000-760
64
3814 Liquid Ultrasonic Flow Meter
Содержание Daniel 3814
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