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Sarasota 2000 Ultrasonic Multipath
Flowmeter
Section 5, COMMISSIONING Page 5-2
Thermo Fisher Scientific
COMMISSIONING
5.4.3 Auxiliary level – encoder input
Screen C213: Encoder Input Configuration allows the details of a direct input from a shaft
encoder to be programmed. This involves setting a point of reference from which to count up
and down (the current level) and the scaling factor of pulses per unit of depth.
5.4.4 Auxiliary levels – BCD input
Screen C214: BCD Input Configuration is used to define the relationship between the BCD
input and actual depth. The level of the counter zero above datum is entered and the
conversion factor relating counter value to the depth units.
5.5 Outputs
The outputs are selected from analogue, BCD and relays. (Set up via screens S25: Output
Configuration, screen S250: Analogue Output Configuration, screen S251: BCD Output
Configuration and screen S252: Test Output Configuration).
Correspondence between the displayed selected parameter value and the output should be
checked. It is possible to force the outputs by temporarily changing the set-up, for example
changing the level datum will affect not only the apparent level measurement but also the
flow. Alarm thresholds may be altered to check relay operation.
Analogue outputs may be checked by a calibrated multi-meter and verified as being received
by the destination device.
BCD outputs are more difficult to check with a multi-meter and are usually verified by reading
the destination device. A BCD test box with a display is available through Thermo Fisher
Scientific.
Alarm outputs may be checked by a calibrated multi-meter and verified as being received by
the destination device.
Summary of Contents for HB-S2000
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