Emerson 3812 User Manual
48
Startup for systems using explosion-proof conduit
Section 3: Electrical installation
Daniel 3812 Liquid Ultrasonic Flow Meter Installation Manual
March 2013
3-9000-765 Rev D
3.4.1
Startup for systems using explosion-proof conduit
1.
Assemble flexible conduit (recommended by Daniel) to the Transmitter Electronics
Enclosure. A conduit seal fitting is required within 18 inches (457 mm) of the enclosure.
Enclosure. A conduit seal fitting is required within 18 inches (457 mm) of the enclosure.
2.
Check to make certain that all power to field wiring is turned OFF.
3.
Remove the end cap nearest the conduit entry to gain access to the transmitter
electronics.
4.
Pull the wires.
5.
Complete the field connection wiring.
6.
Apply electrical power to the system and verify the field connections are working
correctly. Allow the system to run for the time specified by the customer
(approximately one week) and an electrician has fully tested the connections. After the
Acceptance Test is witnessed and approved, seal the conduit.
(approximately one 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 the
compound to set in accordance with manufacturer specifications.
8.
Install the security latches and wire seals on the Transmitter Electronics Enclosure end
caps (
)
9.
If required, 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.
Re-apply electrical power to the system.
12.
Set or configure the meter parameters 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
configuration.
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 the enclosure.
present. Disconnect equipment from supply circuit before opening the enclosure.
Failure to remove power may result in serious injury or death.