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47DR OPERATING MANUAL EM-9509-B Rev.7
34. USER CALIBRATION
User calibration is calibration by a customer using customer’s measuring instruments and standards.
To calibrate (adjust) the input signal, use “Input Compensation” function. To compensate deviation between the DC output
and a device on site, use “Analog Output Adjustment” function.
The unit is calibrated correctly at shipment and therefore there is normally no need for customers to calibrate it.
34.1 INPUT COMPENSATION
You can calibrate the input signal by the Input Compensation function if you need calibration. Two calibration points can be
specified to compensate all the usable range by the slope connecting the points. The data will be lost after an initialization.
Prepare measuring instruments and equipment for calibration by yourselves. Refer to each manual carefully for the instru-
ments and equipment for information on handling them.
34.1.1 INPUT COMPENSATION FLOW
The Input Compensation is carried out as shown in the following flowchart.
IMPORTANT
• Warm up measuring instruments, equipment and other devices on site for
the time specified in each manual, and operate the unit in a stable condi-
tion.
• Two calibration points can be specified.
• Input compensation is not executed when A and B values are identical.
• The input comp. A input and comp. values, and input comp. B input and
comp. values are not returned to the default values even when the input
type or the temperature unit is changed.
• Set the values within the range of -999.99 to 9999.99.
Display
Compensation
Value A
Compensation
Value B
After
compensation
Before
compensation
Input
0
Input Value A Input Value B
After comp. = before comp. + comp. value
Positive comp. value: addition
Negative comp. value: subtraction
POWER ON
Moving on to Initial Setting Mode
Input compensation A input value
Input compensation A compensation value
Input compensation B input value
Input compensation B compensation value
Back to Measuring Mode
Recalibration
(readjustment)
Confirming display value
(operation check)
Calibration (adjustment) completed
Measurement started