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SC Series Instruction Manual page 115
High-Level Input Channel12
12.6.5
CALIBRATION DATA
Sub-Menu
This enters the values that will be used by the instrument when it calibrates itself
to the transducer. The menu items that are displayed will change according to
what the
CALIBRATION TYPE
is set for.
FULL SCALE VOLT
or
FULL SCALE CURR
Menu Item
The nominal transducer/amplifier output when its full-scale load is applied to it, in
volts or milliamps. This menu item is used by the instrument to set gain of its
amplifier circuit. This value is normally found on the transducer’s Certificate of
Calibration or amplifier’s Application Note.
FULL SCALE VALUE
Menu Item
The transducer’s full-scale output in engineering units.
It is available only with the Shunt Calibration type.
ZERO SCALE VALUE
Menu Item
The transducer’s zero-scale output in engineering units, which is usually zero.
It is available only with the Shunt Calibration type.
SHUNT CAL VALUE
Menu Item
The shunt calibration value must be calculated by using information found on the
transducer’s Certificate of Calibration and the following formula:
The terms have the following meanings:
• Shunt-Calibration Output: The transducer’s output when its shunt calibration
function is activated in Volts or milliamps. Sometimes called “Shunt Cal. Fac-
tor”.
• Full-Scale Output: The transducer’s full-scale output in Volts or milliamps.
Sometimes called “Calibration Factor”.
• Full-Scale Capacity: The transducer’s desired full-scale reading in engineering
units (PSI, lbs, Kg, etc.). You may wish to convert the engineering units of this
value. For example, if the transducer full scale is 3000 PSIG and you wish the
channel to read in bar, you must convert 3000 PSIG into 206.84 bar.
This menu item is only available with the Shunt Calibration type.
To verify proper transducer/amplifier operation, you can activate the transducer’s/
amplifier’s shunt calibration function while the instrument is in the RUN mode.
Press and hold the [ENTER] button for three seconds; this will activate the trans-
ducer’s/amplifier’s shunt calibration function and display the reading.
KNOWN POINT x/y
Menu Items
This enters the engineering units for the known-load calibration points. These
points must match the actual loads that you will apply to the instrument during cal-
ibration. The number of calibrations points depends on the
CALIBRATION TYPE
.
When using the 2-Point Known Load Calibration type, the following menu items
are available:
•“
KNOWN POINT 1/2
”: point 1 of 2, usually 0% of the transducer’s full-scale capac-
ity.
•“
KNOWN POINT 2/2
”:
point 2 of 2, usually 100% of the transducer’s full-scale
capacity.
When using the 3-Point Known Load Calibration type, the following menu items
are available:
•“
KNOWN POINT 1/3
”: point 1 of 3, usually 0% of the transducer’s full-scale capac-
SHUNT CAL VALUE
Shunt-Calibration Output
Full-Scale Output
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Full-Scale Capacity×=