3.3.3
Wire the intrinsically safe Analog outputs version using
galvanic isolators
Micro Motion provides a galvanic isolator installation kit specific to wiring the Analog
version of the meter in a hazardous area. Contact your local sales representative or
Micro Motion Customer Support at
for more information on
ordering an isolator kit for your meter.
CAUTION!
•
Meter installation and wiring should be performed by suitably trained personnel only in
accordance with the applicable code of practice.
•
Refer to the hazardous area approvals documentation shipped with your meter. Safety
instructions are available on the Micro Motion Product Documentation DVD and
accessible on the Micro Motion website at
www.micromotion.com
.
The galvanic isolator kit (Analog version) provides isolators for connecting the following
outputs. Use the provided isolators with the designated output.
Note
The RS-485 barrier is not isolated.
Output(s)
Isolator
4–20 mA + HART
MTL5541
4–20 mA
MTL5541
Modbus/RS-485
MTL7761AC
Power
MTL5523
Procedure
Wire the isolators to the appropriate output terminal and pins (see
Figure 3-4
).
Wiring
24
Micro Motion Compact Density Meter