Badger Meter Test Equipment - Manual (Page 10)

PROGRAMMING CALCULATIONS
Totalizer Programming
Totalizer values can be expressed in any engineering unit of measure such as gallons, quarts, or liters For each unit, a unique
scale factor must be programmed
Totalizer scale factor
To determine the Totalizer Scale Factor (Program Mode 1), use the following formula:
Totalizer Scale Factor = 1/(Transmitter pulses per unit X Decimal Factor)
where:
Transmitter Pulses per Unit is the number from “Table 3: Transmitter pulses per unit” on page 11 or the literature for your
particular transmitter/meter combination The chart is expressed in gallons and liters If you wish to read in other units, use
the appropriate conversion factor
Decimal Factor (from 1.0 to .001) determines the resolution of the reading If you wish to read to the nearest 1/10 unit, the
Decimal Factor would be 0 1
Example: You have a model 35 RCDL meter with a PFT-2 transmitter that has a pulse output of 126 7 pulses per gallon You
wish to read the totalizer to the nearest tenth gallon
1/(126.7 X 0.1) = 0.0789 (scale factor)
1 Set the Totalizer Scale Factor (Program Mode 1) to 0.0789
2 Set the Totalizer Decimal Point Factor (Program Mode 2) to 0.0 (one decimal place)
Rate of Flow Programming
Rate of flow can be expressed in any engineering unit of measure for any time base such as gallons/minute, liters/second,
barrels/hour
Rate scale factor
To determine the Rate Scale Factor (Program Mode 4), use the following formula:
Rate Scale Factor = (Seconds / Transmitter Pulses per Unit x Decimal Factor)
where:
Seconds is the number of seconds in the rate time unit If you wish to read flow in units per minute, seconds would equal 60
If you wish to read flow in units per hour, seconds would equal 3600
Transmitter Pulses per Unit is the number from
“Table 3: Transmitter pulses per unit” on page 11 or the literature for your
particular transmitter/meter combination The chart is expressed in gallons and liters If you wish to read in other units, use
the appropriate conversion factor
Decimal Factor (from 1 0 to 0 001) determines the resolution of the reading If you wish to read the rate to the nearest 1/10
unit, set the Decimal Factor to 0.1
Before you program the Rate Scale Factor, you must set the Rate Decimal Point position (Program Mode 4) This decimal point
corresponds to the decimal in the Rate Scale Factor number
Example: You have a model 35 RCDL meter with a PFT-2 transmitter that has a pulse output of 126 7 pulses per gallon You
wish to read rate of flow in gallons per minute
60 seconds /126.7 pulses per gallon x 1.0 = 60/126.7 = 0.473(rate scale factor)
1 Set the Rate Scale Factor (Program Mode 3) to 0.473
2 Since we are reading in whole gallons, set Rate Decimal Point (Program Mode 4) to 0000
3 Since we are reading in whole gallons (no multiplier), set Program Mode 5 to 1
Pulse Output Programming
The Pulse Output can be programmed for any engineering unit of measure A Pulse Output Scale Factor must be calculated and
programmed (Program Mode 6) using the same formula and procedure as described under the Totalizer Scale Factor (Program
Mode 1)
The transmitter pulses per unit in Table 3 apply to the following transmitters:
• FT-1
Model ER-10, ER-10/R & ER-10H Industrial Register
Page 10 September 2013