Max Machinery 120 FLOW RATE & TOTAL INDICATOR - Manual (Page 11)

120-200-350 © 1993 (Rev 5/97) Max Machinery, Inc. Page 11
Programming
PROGRAM CALIBRATE
Sub Menu 11 - K-factor
Clear key enables entry of new K-factor (up to 5 figures).
0 to 9 and DP keys are used to write the number of flow meter pulses per unit volume to the display.
Enter key writes the new K-factor to memory.
The reciprocal of K-factor is Kmf low (To read: press up arrow key, then 3 while in the run mode).
The K-factor is the number of flow meter pulses per unit of volume (cc, liter, gallon) required to
increment the totalizer display one digit. (See the calibration sheet supplied with your flow meter). It
may be desirable to program a decimal point on the counter’s display in order to read totals to the
nearest tenth, hundredth, etc. of a whole unit. The counter logic does not account for the displayed
decimal point location, therefore, the user must account for the decimal point when K-factor is
entered. If the totalizer is intended to count in increments of tenths of units, the K-factor to be
programmed is the flow meter factor divided by ten; for hundredths of units, the K-factor to be
programmed is the flow meter factor divided by 100, etc.
For example:
Using a sample Model 213 flow meter with a K-factor of 111.373 pulses/cc (421546 pulses/gallon)
1. If total is to read to 0.1 cc then the K-factor = 11.137 (111.373 x 0.1)
2. If total is to read to 0.0001 gallon then the K-factor = 42.155 (421,546 x 0.0001)
Sub Menu 12 - Rate Multiplier
The rate multiplier is used to program the rate indicator display in units/time.
Clear key enables entry of new rate multiplier (Rm) (up to 6 figures).
0 to 9 and DP keys are used to write the rate multiplier to the display.
Enter key writes the new rate multiplier to memory.
The rate multiplier is calculated by the formula:
Rm = # of seconds in time unit x totalizer decimal location
Desired rate decimal location
For Example:
1. If rate is to read to 0.1 cc/min (total displays 0.1 cc)
Rm = 60 sec/min x 0.1 total decimal
0.1 rate decimal location
2. a. If rate is to read to 0.001 gal/min (total displays 0.0001 gallons)
Rm = 60 sec/min x 0.0001 total decimal
0.001 rate decimal location
b. If rate is to read to 0.1 gal/hr (total displays 0.0001 gallons)
Rm = 3600 sec/hr x 0.0001 total decimal
0.1 rate decimal location
PROGRAMMING
= 60
= 6
= 3.6