Liquid Controls DMS Setup - Manual (Page 35)

35
System Calibration
Screen 9d: System Calibration (4/5)
Temperature displays current reading from the
temperature probe with the offset applied. If LectroCount
is not equipped with a temperature probe, the display will
show dashes. This field allows entry from a Weights &
Measures calibrated thermometer.
To calibrate temperature probe, run enough product
through the meter to allow temperature to stabilize.
Compare Temperature reading with current Weights &
Measures thermometer reading. If the readings do not
match, enter the Weights & Measures reading in the field
edit window for Temperature. This value will overwrite
the previous value and the Offset field will be recalculated
by the LectroCount.
Offset adjustments are limited to ±0.3°C (±0.54°F).
Adjustments greater than these offset values require
replacement of the RTD Probe.
Offset represents the difference between the official
Weights & Measures temperature reading and the
LectroCount probe’s temperature reading. The offset
is automatically calculated if an entry is made in the
Temperature field. If a temperature probe is not present,
this field will show dashes.
If a Weights & Measures temperature reading was not
entered in Temperature, subtract Temperature value
from Weights & Measures temperature reading. Enter this
value in the field edit window for Offset. If the difference
is a negative number, enter “ -” before the value.
Offset adjustments are limited to ±0.3°C (±0.54°F).
Adjustments greater than these offset values require
replacement of the RTD Probe.
Temperature Unit is used to define the temperature
unit to be used for the application. The two options for
Temperature Unit are Deg. C (degrees Celsius) and Deg.
F (degrees Fahrenheit). Move pointer to desired option
and press ENTER to accept.
RTD Slope and RTD Offset are used for factory calibration
of the LectroCount and are not editable.
RTD Slope indicates slope used to calculate the raw
temperature value from the raw ADC value.
RTD Offset indicates offset used to calculate the raw
temperature value from the ADC value.
Press
Next (F1) to advance to Screen 9e on page 36.
(4/5) 1
80.54
.30
Deg. F
0.025000
0.000
SYSTEM CALIBRATION
Temperature:
Offset:
Temperature Unit:
RTD Slope:
RTD Offset:
Next Prev Cnfg Main