Start-Up And Operation; Figure 3-1. Typical Instrument Tag - ABB 3000 Series Instruction Manual

10DS3111A INSTRUCTION MANUAL

3.0 START-UP and OPERATION

The meter is calibrated for the values stated on the instrument tag. If specific values were not
specified, the meter is calibrated at some nominal maximum flow rate and for a 4-20 mA current
output span. In either case, the calibration data is noted on the instrument data tag as shown in
Figure 3-1.
Prior to initial system start up, verify that the meter is properly installed; check flow direction, wiring
interconnection and grounding as discussed in the Chapter 2.0. Particular attention should be paid to
the meter grounding procedures; improper grounding may result in unsatisfactory performance. Refer
to the signal converter instruction bulletin for interconnection wiring procedures.
Except for system zero adjustment, there are no operating controls that require field adjustment
unless the full scale range setting was not specified at time of purchase. If the full scale range setting
must be set or changed, refer to the instruction bulletin supplied with the signal converter.
The system zero adjustment must be performed prior to start-up. The procedure for zero adjustment
is discussed in the signal converter instruction bulletin.
Start flow through the process piping system that includes the meter. Allow a nominal flow through
the pipeline for several minutes to purge entrapped air. The pipeline must be full for accurate flow
measurement.
Apply system power to the flowmeter and signal converter by closing the external switch or circuit
breaker; there are no switches inside of the equipment. Also energize any auxiliary equipment
associated with the flow metering system; such as remote analog recorders, controllers or rate
indicators.
Initiate process flow through the pipeline. Flow measurement and concurrent output signal transmis-
sion will commence with flow through the meter. Information concerning operation of the signal
converter is provided in the instruction bulletin supplied with the signal converter.

FIGURE 3-1. TYPICAL INSTRUMENT TAG

3-1