36 Micro Motion Series 1000 and Series 2000 Transmitters
Flowmeter Startup
5.2 Applying power
Before you apply power to the flowmeter, close and tighten all housing covers.
Turn on the electrical power at the power supply. The flowmeter will automatically perform
diagnostic routines. When the flowmeter has completed its power-up sequence:
• For Model 1700/2700 transmitters under normal conditions, the status LED on the display will
turn green and begin to flash.
• For Model 1500/2500 transmitters under normal conditions, the status LED will turn green.
• If the status LED exhibits different behavior, an alarm condition is present or transmitter zero
is in progress. See Section 7.5.
Note: The flowmeter is ready to receive process fluid approximately one minute after power-up (time
varies with models). However, approximately ten minutes are required for the electronics to warm up
to equilibrium. During this ten-minute period, the transmitter may exhibit minor instability or
inaccuracy.
5.2.1 Communication methods after power-up
For Model 1700/2700 transmitters, all communication methods supported by the transmitter are
available immediately after power-up.
For Model 1500/2500 transmitters:
• If you are using the Communicator, or ProLink II with HART/Bell 202, you can establish
communication with the transmitter immediately after power-up, using terminals 21 and 22.
See Chapter 3 for more information on using ProLink II and Chapter 4 for more information
on using the Communicator.
• If you are using ProLink II via the RS-485 physical layer, terminals 33 and 34 are available to
establish a connection in service port mode for 10 seconds immediately after power-up. If no
service port connection is made during this period, the terminals are automatically reset to the
configured Modbus communication parameters. Be sure to set the ProLink II connection
parameters appropriately. See Chapter 3.
Operating the flowmeter without covers in place creates electrical hazards
that can cause death, injury, or property damage.
Make sure safety barrier partition and covers for the field-wiring, circuit board
compartments, electronics module, and housing are all in place before applying
power to the transmitter.
Using the service port to communicate with a Model 1700/2700 transmitter in
a hazardous area can cause an explosion.
Before using the service port to communicate with the transmitter in a hazardous
area, make sure the atmosphere is free from explosive gases.
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