PTC-04-DB-CALIB Melexis Inc, PTC-04-DB-CALIB Datasheet - Page 15

• Manufacturer Part Number: PTC-04-DB-CALIB
• Description: DUAGHTER BOARD CALIBRATION
• Manufacturer: Melexis Inc
• Series: -r

Specifications of PTC-04-DB-CALIB

• Accessory Type: Calibration Software
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: PTC Programmer

DAC
In the 2nd graph, you have agene two curves: the Set DAC (left Y-axis) and the reference measurements
of the external voltmeter (the right Y-axis). The purpose of the calibration check is to compare the DAC
with the external high precision voltmeter.
Also for this check, a number of values are measured to calculate the difference between the DAC of the
PTC04 and the External Voltmeter which results in to correction parameters for offset and gain.
Graph 2
At the end of the calibration check these values, of the ADC channels and the DAC, are compared with
the values stored in the PTC. If the parameters for offset and gain, that are currently stored in the PTC04,
are out of specifications in comparison with the new correction parameters, the software gives a warning
and asks if the new correction parameter may be saved.
User manual calibration software PTC04
UI_0PTC04AAMLX Rev. 1.35
1800
1600
1400
1200
1000
800
600
400
200
0
0
500
Calibration Software PTC04
DA C PTC-03
Calibration check DAC
Se t Value
Page 15 of 17
1000
Ext. V OLTMETER
1500
User Manual
2000
February 10
8
7
6
5
4
3
2
1
0