3.0 START-UP and OPERATION
3.1 General
The meter is calibrated at the factory. Each meter is calibrated to determine its meter capacity at a
given velocity. Refer to Table 1-4.
Prior to initial system start up, verify that the meter is properly installed; check flow direction, wiring
interconnection and grounding as discussed in Section 2.0 Installation. Particular attention should be
given to the meter grounding procedures; improper grounding may result in unsatisfactory perform-
ance. Refer to the signal converter instruction bulletin for interconnection wiring.
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 flowmeter does not require zeroing, however, system zero adjustment must be performed prior
to start-up. The procedure for system 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 the appropriate power for the meter 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.
FIGURE 3-1. TYPICAL INSTRUMENT TAG
10DS3111E INSTRUCTION MANUAL
3-1
To Next Page
Loading...
