To insure accuracy a METERING RATE must be determined for each color. It is only necessary to determine Metering Rate once for each color. Record Metering Rate for each color for future reference.

- Switch to CYCLE.
- Turn CALIBRATION knob (upper right corner) to "CALIBRATE".

This will force one cycle of 100 counts to be dispensed.

OR: Set counter to 100 and switch from OFF to CYCLE.

Plug in SIGNAL cord to force cycle of 100 counts. - Run several cycles and record GRAM WEIGHT metered each cycle.

The average of these weights is the METERING RATE in grams/100ct.

Example: Each CALIBRATION cycle produces 55 grams output.

Your METERING RATE is 55 grams/100ct.

- Determine the WEIGHT of the entire shot IN GRAMS.
- Determine the LBS. of COLOR per 100 LBS. of natural required, (or KILOS of COLOR per 100 KILOS of natural).
- Determine the METERING RATE for each color in grams/100 counts.
- Set the digital counter using the following formula:
(Shot wt) x (lbs/100) / (grams/100ct) = Setting

Use this Calculator to do the math for you. Fill in the fields in the green area then click Calculate.

Note: calculator rounds to the nearest 10th

- Determine the extruder output in pounds per hour.
- Determine the LBS. of COLOR per 100 LBS. of natural required, (or KILOS of COLOR per 100 KILOS of natural).
- Determine the METERING RATE in grams/100 counts.
- Set the digital counter using the following formula:
(lbs/hr) x (lbs/100) / (grams/100ct) x .71 = Setting

Use this Calculator to do the math for you. Fill in the fields in the green area then click Calculate.

Note: calculator rounds to the nearest whole number.

This method does not require calibration, but instead relies on an accurate knowledge of the weight of the liquid (lbs/gal) and accurate tube sizes.

- Determine the WEIGHT of the entire shot in GRAMS.
- Determine the PERCENT color let-down desired.
- Determine the weight of the liquid color in POUNDS per GALLON. or GRAMS per LITER (G/L).
- Set the digital counter using the following formula:
(Shot Weight) x (% let-down) x ('C' factor) / (lbs/gal) = Setting

or (Shot Weight) x (% let-down) x ('C' factor) x 120 / (G/L) = Setting

Use this Calculator to do the math for you. Fill in the fields in the green area then click Calculate.

Note: calculator rounds to the nearest 10th.

- Determine the extruder output in pounds per hour.
- Determine the percent color let-down desired.
- Determine the weight of the liquid color in pounds per gallon or GRAMS per LITER (G/L).
- Set the digital counter using the following formula:
(lbs/hr) x (% let-down) x ('E' factor) / (lbs/gal) = Setting (Use top Calculator)

or (lbs/hr) x (% let-down) x ('E' factor) x 120 / (G/L) = Setting (Use bottom Calculator)

Use this Calculator to do the math for you. Fill in the fields in the green area then click Calculate.

Note: calculator rounds to the nearest whole number.

Tube Size | 'C' factor | 'E' factor |
---|---|---|

1/8" I.D. (green) | 1.3 | .93 |

3/16" I.D. (red) | .66 | .47 |

1/4" I.D. (clear) | .39 | .28 |

NOTE: If you have Model MPA-6-18 (which uses an 18 RPM motor) then multiply these factors by six, i.e. (6 x C factor).