Transient Protection; Installing The Transient Protector - Emerson Rosemount 8600 Series Reference Manual

Reference Manual
May 2019
5.
6.
7.
8.
Note
The indicator may be installed in 90-degree increments for easy viewing. Mounting screws
may need to be installed in the alternative holes based on LCD orientation. One of the four
connectors on the back of the indicator assembly must be positioned to fit into the ten-pin
connector on the electronic board stack.
Note the following LCD temperature limits:
Operating:
Storage:
3.8

Transient protection

The optional transient terminal block prevents damage to the flowmeter from transients
induced by lightning, welding, heavy electrical equipment, or switch gears. The transient
protection electronics are located in the terminal block.
The transient terminal block meets the following specifications:
IEEE C62.41 - 2002 Category B.
3 kA crest (8 X 20
6 kV crest (1.2 X 50
6 kV/0.5 kA (0.5
Note
The ground screw inside the terminal housing must be tightened for the proper operation
of the transient protection. Also, a high-current ground connection to earth is required.
3.8.1

Installing the Transient Protector

For flowmeters ordered with the transient protector option (T1), the protector is shipped
installed. When purchased separately from the Rosemount 8600D, you must install the
protector on a Rosemount 8600D flowmeter using a small instrument screwdriver, a pliers,
and the transient protection kit.
The transient protection kit includes the following:


Use the following steps to install the transient protector:
Rosemount 8600 Vortex Flow Meter
Insert the connector into the Alarm / Security junction.
Gently slide the LCD indicator onto the connector and tighten
the screws into place.
Insert jumpers into ALARM and SECURITY positions on the face of the LCD
indicator.
Attach the extended cover and tighten at least one-third turn past o-ring contact.
–4 to 185 °F (–20 to 85 °C)
–50 to 185 °F (–46 to 85 °C)
s)

s)

s, 100 kHz, ring wave)

One transient protection terminal block assembly
Three captive screws
Installation
00809-0100-4860, Rev BF
43