KROHNE Summit 8800 Vol 1 - Manual (Page 87)

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08/2013 - MA SUMMIT 8800 Vol1 R02 en
SUMMIT 8800 CALIBRATION 08
Figure 95 Analog output calibration screen
Analog Output Calibration Procedure
NOTE: Output accuracy is specified as 0.15% FSD or an absolute error of 30 uA.
• Connect a reference precision 100 Ohm resistance (0.05% accuracy or better) to the target
analog output.
• Connect a reference calibrated digital meter with a 0-2V range (0.05% accuracy or better)
across the resistor.
• Click the SET TO 4mA button on the START CALIBRATE page.
• For below two adjustments allow for input value stabilisation (e.g. 30 seconds) and assume
that stabilisation is reached when output values have oscillated 5 times around the assumed
final value.
• Use the up and down arrow buttons to raise and lower the output until 0.4000V is indicated on
the meter.
• Click the SET TO 20mA button on the START CALIBRATE page.
• Use the up and down arrow buttons to raise and lower the output until 2.0000V is indicated on
the meter.
• Repeat above two steps 3 times over. Click the WRITE button to store the results.
• Calibrate the output by simulating 4mA. Does the output value field read 0.4000V? Simulate
100%.
• Does the output value field read 2.0000V?
• Click the STOP CALIBRATE button to exit the analog output calibration menu.
8 .2 .2 Digital Output
The Digital Outputs do not require any customer calibration.