Emerson Rosemount 56, Инструкция по эксплуатации

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86 Calibration
Section 10: Calibration Instruction Manual
April 2017 LIQ-MAN-56
1. To calibrate the turbidity loop using
Slope Calibration with pure water
and a standard of known turbidity,
follow the step-by-step procedures
displayed on-screen.
2. To calibrate the turbidity loop using
Standardize Calibration by Standard-
izing the sensor to a known turbidity,
follow the step-by-step procedures
displayed on-screen.
3. To calibrate the turbidity loop using Grab Calibration by Standardizing the sensor to a
known turbidity based on a reference turbidimeter, follow the step-by-step procedures
displayed on-screen.
10.11 Pulse flow
A variety of pulse flow sensors can be wired to the Flow signal input board to measure flow
volume, total volume and flow difference (if 2 Flow signal boards are installed). The 56 Flow
signal board will support flow sensors that are self-driven (powered by the rotation of the
impeller paddle-wheel).
To calibrate the pulse flow sensor, access the Calibration screen by pressing ENTER/MENU from
the main screen, select S1 or S2 Measurement and press ENTER/MENU. Press INFO at any time
to learn more about this procedure. A yellow screen will appear with detailed instructions and
information.
The following calibration routine is covered:
1. K Factor A constant value represent-
ing pulses/Gal of flow
2. Frequency/Velocity & Pipe
Alternate cal method – requires man-
ual entry of frequency (Hz) per veloc-
ity and Pipe diameter used
3. In process Calibration based on
known volume per unit of time
4. Totalizer Control User settings to
stop, restart and reset total volume
meter
1. To enter a K Factor constant value
representing pulses/Gal
of flow, follow the step-by-step
procedures displayed on-screen.
2. To calibrate pulse flow
Frequency/Velocity & Pipe as an
alternate cal method, follow
the step-by-step procedures
displayed on-screen.
3. To In-process Calibration the pulse flow sensor based on known volume per unit of time,
follow the step-by-step procedures displayed on-screen.
4. To stop, restart and reset Totalizer Control total volume meter, follow the step-by-step
procedures displayed on-screen.