Omega OME-A822PG manual D/A Calibration

Page 44

4.2 D/A Calibration

1.Run the A82XDIAG.EXE program

2.Press the “Right Arrow Key” to select “CALIBRATION”.

3.Press the “Down Arrow Key” to select “G. D/A REFERENCE”.

4.Press the “Enter Key”

5. Connect VREF, pin 11 of CN3, to a DVM (Digital Volt Meter)

6.Adjust VR5 until the DVM=4.9988V

7.	Press the “ESC Key”
8.	Select and Execute “A. D/A REFERENCE 1” item

9.Connect D/A channel 0, pin 30 of CN3, to the DVM

10.Adjust VR3 until the DVM=4.9988V

11.Press the “ESC Key”

12.Select and Execute “B. D/A REFERENCE2” item

13.Connect D/A channel 1, pin 32 of CN3, to the DVM

14.Adjust VR4 until the DVM=4.9988V

OME-A-822PGL/PGH Hardware Manual ---- 42

Image 44

Contents User’sGuide Canada MexicoBenelux Czech RepublicOME-A-822PGH/PGL Tables of Contents IntroductionConnector Features General DescriptionSpecifications Power ConsumptionAnalog Inputs 3 A/D ConverterInterrupt Channel DA ConverterDigital I/O Programmable Timer/Counter Direct Memory Access Channel DMAApplications Product Check ListHardware Configuration Board LayoutI/O Base Address Setting Default base address isJumper Settings 1 JP1 D/A Internal Reference Voltage Selection2 JP2 D/A Int/Ext Ref Voltage Selection 3 JP3 Single-ended/Differential Selection4 JP4 A/D Trigger Source Selection 5 JP5 Interrupt Level Selection6 JP6 User Timer/Counter Clock Input Selection 7 JP7 DMA Dack Selection JP8 DMA DRQ Selection DRQ JP7 Dack JP8 DMAI/O Register Address Address Read WriteConversion is completed, the Ready bit will clear to zero 1 8254 Counter2 A/D Input Buffer Register 3 D/A Output Latch Register 4 D/I Input Buffer Register Clear Interrupt Request6 A/D Gain Control Register GAIN3 GAIN2 GAIN1 GAIN0OME-A-822PGH Gain Control Code Table 7 A/D Multiplex Control Register8 A/D Mode Control Register 9 A/D Software Trigger Control Register 10 D/O Output Latch Register Digital I/O CN28254 Timer/Counter CounterA/D Conversion 1 A/D conversion flow Polling, interrupt and DMA2 A/D Conversion Trigger Modes 3 A/D Transfer ModesRefer to Sec Using software trigger and polling transferDelay the settling time refer to Sec .4.6 and Sec D/A Conversion Analog Input Signal Connection OME-A-822PGL/PGH Hardware Manual OME-A-822PGL/PGH Hardware Manual Signal Shielding Use a single connection to frame ground not A.GND or D.GNDUsing OME-DB-8225 CJC Output CN2 Digital Output Pin Assignment CN1/CN2/CN3 Pin AssignmentCN1 Digital Input Pin Assignment SINGLE-ENDED Signal Mode Differential Signals Daughter Board OME-DB-8225OME-DB-37 OME-DB-16PCalibration Description of Variable ResistorsD/A Calibration A/D Calibration Diagnostic Utility IntroductionOME-A-822PGL/PGH Hardware Manual Running The Diagnostic Utility Setup Base address selection screenDMA no and IRQ no selection screen Calibration Function Test Test Test Screen Digital I/O Test Screen Multiplexer Test Screen Use IRQ Test Screen Use DMA Test Screen DA Gain Test Screen Timer 0 Test Screen Special Test Help WARRANTY/DISCLAIMER Temperature