Laurel-electronics LAUREATE SERIES 2 COUNTER-TIMER-SERIAL INPUT METER Manual de usuario descargar pdf (Pagina 16)

• RATE A, TOTAL B (A_btot) (Extended counter) displays Rate for Channel A as Item #1

and Total for Channel B as Item #2.

• RATES A+B, A-B, AxB, A/B, A/B-1 (Extended counter) display arithmetic combinations

of Rates A and B as Item #1, Rate A as Item #2, and Rate B as Item #3. With rates A and

B scaled to produce a ratio close to 1 and an offset of -1, the special combination A/B-1,

called “Draw,” can display percentage changes, such as elongation of material as it

passes between rollers.

TOTAL MODES

DISPLAY TOTAL IN GALLONS FROM 36.67 PULSE/GALLON TURBINE FLOW METER

Application:

Display total in gallons with

two decimal places for flow meter calibra-

ted to 36.67 pulses/gallon.

Solution: Set Input to “Total A Only.” Un-

der Setup, select “Restore totals at power-

on” and coordinates of 2 points method.

This is the preferred scaling method. Set

gate time to its minimum of 0.01 sec for

smooth display updates. Set DecPt1 to two

places. Then enter low input and desired

low reading, and high input and desired

high

reading for display of 1.00 for 36.67

pulses, as shown.

DISPLAY SIMULTANEOUS RATE & TOTAL FROM 36.67 PULSE/GALLON FLOW METER

Application:

Display flow rate in GPM with

two decimal places and total gallons with

no decimal places from the same flow me-

ter signal calibrated to 36.36 pulses/gallon,

applied to Channel A

Solution: Use an Extended coun

ter, as

required for simultaneous rate and total.

Set Input to “Rate A A Total.” For flow rate

in GPM (Item #1), set DecPt1 to two deci-

mals, and scale the d

isplay by entering Lo

In1, Lo rd1, Hi In1, Hi rd1 as shown. For

total in Gallons (Item #2), set DecPt2 to no

deci

mals, and scale the display by entering

Lo In2, Lo rd2, Hi In2, Hi rd2 as shown.

Enter a Gate Time, such as 0.1 sec, which

is long enough to produce stable rate read-

ings, but is short enough to produce rapid

updates of total.

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Laurel-electronics LAUREATE SERIES 2 COUNTER-TIMER-SERIAL INPUT METER Manual de usuario Pagina 16

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