Emerson 3812 User Manual
Daniel 3812 Liquid Ultrasonic Flow Meter Installation Manual
Section 3: Electrical installation
3-9000-765 Rev H
May 2015
Startup for systems that use flame-proof cable
49
3.4.2
Startup for systems that use flame-proof cable
1.
Check to make certain that all field wiring power is turned OFF.
2.
Remove the end cap nearest the cable entries to gain access to the transmitter
electronics.
3.
Install the cable and cable gland.
4.
Complete the field connection wiring.
5.
Connect a flow computer to the communications line on the Daniel3812 Liquid
Ultrasonic Flow Meter.
6.
Apply electrical power to the system to ensure the field connections are working
correctly. Allow the system to run for the time specified by the customer (usually one
week) and an electrician has fully tested the connections. After the Acceptance Test is
witnessed and approved, seal the conduit.
week) and an electrician has fully tested the connections. After the Acceptance Test is
witnessed and approved, seal the conduit.
7.
Power down the system and apply the sealing compound to the conduit and allow to
set in accordance with manufacturer specifications.
8.
Install the security latches and wire seals on the Transmitter Electronics Enclosure end
caps (
9.
Install the wire seals on the Base Enclosure hex head bolts and on the Shroud covering
the meter body (
10.
Install the security wire seals on the shrouds covering the transducers and cables. Refer
to the section appropriate for your meter design:
• Section 3.7.4 “Bolted band shroud security seals”
• Section 3.7.5 “Clamped band shroud security seals”
• Section 3.7.6 “Split shroud security seals”
• Section 3.7.7 “Latched band shroud security seals”
• Section 3.7.5 “Clamped band shroud security seals”
• Section 3.7.6 “Split shroud security seals”
• Section 3.7.7 “Latched band shroud security seals”
11.
Connect electrical power to the system.
12.
Set or configure the meter using Daniel MeterLink. For additional installation
information refer to the system wiring diagram (
), Daniel MeterLink
Software for Gas and Liquid Ultrasonic Meters Quick Start Manual (P/N 3-9000-763) and
use Daniel MeterLink Field Setup Wizard to complete the meter configuration.
use Daniel MeterLink Field Setup Wizard to complete the meter configuration.
HAZARDOUS VOLTAGE INSIDE
Do not open the Transmitter Electronics Enclosure when an explosive gas atmosphere is
present. Disconnect equipment from supply circuit before opening.
present. Disconnect equipment from supply circuit before opening.
Failure to remove power may result in serious injury or death.