Equivalent Input Calibration Operation (Setting Code 92); Cautions For Equivalent Input Calibration - Unipulse F160 Operation Manual

4 CALIBRATION
4-4.
Equivalent Input Calibration Operation
(Setting Code 92)
Set the rated output value and reading of the sensor.
For the setting method, refer to "Example 4) Setting method ② for command execution" on page 15.

■Cautions for Equivalent Input Calibration

Analog section specification
Signal input range
Rough adjustment and fine adjustment of zero and gain
Chapter
4
Actual load calibration
Perform span calibration after zero calibration.
With the zero calibration status taken into consideration, an error is displayed if the load cell output
at capacity does not fall within +2mV/V during span calibration.
Equivalent input calibration
Whether or not the load cell output at capacity is within +2mV/V is not checked during span
calibration.
Example)
22
22
Setting range/ 0.3000 to 2.0000
Scale making with:
* By actual load calibration,
Zero calibration Initial tare 1000kg
LOAD display of
Span calibration
Weight 2000kg + Initial tare 1000kg
it can be known that such a scale cannot be made.
* By equivalent input calibration,
Zero calibration Initial tare 1000kg
Span calibration Weight 2000kg (2mV/V)
no error is given, but weighing is possible only up to 1000kg.
(1000kg + initial tare 1000kg = 2mV/V)
Weighing up to capacity is not possible.
Point
When the initial tare + capacity > 2mV/V, the signal input range is exceeded.
Be aware that a calibration error is given during actual load calibration, but no
calibration error is given during equivalent input calibration.
Initial value/ 2.0000
0 to +2mV/V
Performed by digital computation
3mV/V, 3000kg load cell
initial tare 1000kg
capacity 2000kg
No error
Calibration error
(3mV/V)
No error
No error