7
Power up the transmitter
The transmitter must be powered up for all configuration and commissioning tasks, or for
process measurement.
Procedure
1.
WARNING
If the transmitter is in a hazardous area, do not remove the housing cover while
the transmitter is powered up. Failure to follow these instructions can cause an
explosion resulting in injury or death.
Ensure that all transmitter and sensor covers and seals are closed.
2. Turn on the electrical power at the power supply.
The transmitter will automatically perform diagnostic routines. When using DC
power, a minimum of 1.5 amps of startup current is required. During this period,
Alert 009 is active. The diagnostic routines should complete in approximately
30 seconds. The status LED will turn green and begin to flash when the startup
diagnostics are complete. If the status LED exhibits different behavior, an alert is
active.
Postrequisites
Although the sensor is ready to receive process fluid shortly after power-up, the
electronics can take up to 10 minutes to reach thermal equilibrium. Therefore, if this is the
initial startup, or if power has been off long enough to allow components to reach ambient
temperature, allow the electronics to warm up for approximately 10 minutes before
relying on process measurements. During this warm-up period, you may observe minor
measurement instability or inaccuracy.
Installation Manual
Power up the transmitter
00825-0100-1600
March 2022
Installation Manual
35
