National Instruments 6110, Calibration Procedure

Page 1: ...t equipment software calibration functions and environment needed for calibration Calibration Process This section provides step by step instructions for verifying and calibrating your device NI 6110 6111 6115 6120 Specifications This section provides specification tables for the NI 6110 6111 6115 6120 This document is intended for metrology labs It does not cover programming technique or compiler...

Page 2: ...w often you should calibrate the device NI recommends performing a complete calibration at least once every year You can shorten this interval based on the demands of your application Equipment and Other Test Requirements This section describes the equipment software documentation and test conditions needed for calibration Equipment When calibrating an NI 6110 6111 6115 6120 NI recommends that you...

Page 3: ...to create applications that use NI DAQ These documents are your primary references for writing a calibration utility For more information on the products you are calibrating refer to the device user manuals Software NI DAQ supports a number of programming languages including LabVIEW Measurement Studio Microsoft Visual C Microsoft Visual Basic and Borland C When you install NI DAQ install support f...

Page 4: ... connections and test conditions during calibration use the following guidelines Keep connections to the device as short as possible Long cables and wires can act as antennae picking up extra noise that can affect calibration Use shielded copper wire for all cable connections to the device Use twisted pair wire to eliminate noise and thermal offsets Maintain a temperature between 18 and 28 C To op...

Page 5: ...ure These flowcharts only refer to the appropriate NI DAQ function calls You may want to refer to the Calibration Process section to the NI DAQ Function Reference Help and to the NI DAQ User Manual for PC Compatibles for additional information on the software structure and for function explanations Verifying Analog Input Figure 1 Analog Input Verification From the specification table for the produ...

Page 6: ...table for the product determine the channel output polarity and voltage to verify AO_VWrite deviceNumber chan voltage GPCTR_Control deviceNumber chan ND_RESET GPCTR_Set_Application deviceNumber chan ND_PULSE_TRAIN_GNR GPCTR_Change_Parameter deviceNumber chan ND_COUNT_1 2 GPCTR_Control deviceNumber chan ND_PROGRAM GPCTR_Change_Parameter deviceNumber chan ND_COUNT_2 2 Select_Signal deviceNumber ND_G...

Page 7: ...procedure describes how to configure a device with NI DAQ 1 Install NI DAQ The latest version is available at ni com 2 Power off the computer and install the device in an available slot 3 Power on the computer and launch MAX 4 Configure the device number and click Test Resources to ensure the device is working properly You have completed configuring the device for calibration Note When MAX configu...

Page 8: ...ion Note Calibrator connections depend on the channel you are verifying The verification process requires you to individually test each channel 2 Use the following guide to determine the connections between the calibrator and the device pins for analog input verification a Starting with channel 0 connect the positive output of the calibrator to the analog input specified in Table 1 b Connect the n...

Page 9: ...ll AI_Configure to inform NI DAQ of the input mode input range and input polarity selected for the device Set the following parameters deviceNumber The value obtained from MAX chan The channel currently being verified inputMode 0 inputRange The range for calibration from Table 5 for the NI 6110 6111 Table 8 for the NI 6115 or Table 11 for the NI 6120 polarity 0 driveAIS 0 7 Call DAQ_Op to acquire ...

Page 10: ...l values 11 Make the appropriate connections to verify the next channel by repeating steps 2 and 3 and proceed from step 4 You have completed verifying the analog input levels on the device Verifying Analog Output This procedure verifies the performance of the analog output Check measurements using the following procedure 1 Read the Equipment and Other Test Requirements section Note The NI 6110 61...

Page 11: ... and lower limits on the data sheet If the value falls between these limits the device has passed this test 7 Repeat steps 4 6 to test all values 8 Disconnect the DMM from DAC0OUT and reconnect it to DAC1OUT making the connections as shown in Table 4 9 Repeat steps 4 6 changing the channel from 0 to 1 10 Disconnect the DMM from the device You have now completed verifying analog output levels on th...

Page 12: ...Number The value obtained from MAX gpctrNum 0 paramID ND_COUNT_2 paramValue 2 6 Call Select_Signal to route the counter signal to the GPCTR0_OUT pin on the device connector Set the following parameters deviceNumber The value obtained from MAX signal ND_GPCTR0_OUTPUT source ND_GPCTR0_OUTPUT sourceSpec ND_LOW_TO_HIGH 7 Call GPCTR_Control to start the generation of a square wave Set the following par...

Page 13: ... input channel 0 pin 68 3 Connect the negative output of the calibrator to analog input channel 0 pin 34 and to ACH0GND pin 67 4 Call Get_Cal_Date to obtain the date of the last calibration The function is included in the niECal dll After running CalDate contains the date that the device was last calibrated 5 Call Calibrate_E_Series to internally calibrate the device Set the following parameters d...

Page 14: ...d output operation To do this repeat the procedure in the Verifying the Performance of the NI 6110 6111 6115 6120 section NI 6110 6111 6115 6120 Specifications The tables in this section contain the specifications for the NI 6110 6111 6115 6120 The specifications include analog input analog output and counter timer values NI 6110 6111 devices share one set of tables The NI 6115 and NI 6120 each ha...

Page 15: ...t or output to verify performance This value is divided into two columns Location and Value Location refers to where the test value fits within the test range Pos FS is positive full scale and Neg FS is negative full scale Value refers to the voltage value you are verifying 24 Hour Ranges The 24 Hour Ranges column contains the Upper Limits and Lower Limits for the test point value When the device ...

Page 16: ... 8951 9 9050 9 8950 5 Bipolar 2 PosFS 4 95000 4 94741 4 95259 4 94734 4 95266 5 Bipolar 2 Zero 0 0000 0 00083 0 00083 0 00083 0 00083 5 Bipolar 2 NegFS 4 95000 4 95259 4 94741 4 95266 4 94734 2 Bipolar 5 PosFS 1 95000 1 94888 1 95112 1 94885 1 95115 2 Bipolar 5 Zero 0 00000 0 00035 0 00035 0 00035 0 00035 2 Bipolar 5 NegFS 1 95000 1 95112 1 94888 1 95115 1 94885 1 Bipolar 10 PosFS 0 99000 0 98896 ...

Page 17: ...5800 41 3995 41 7605 41 3987 41 7613 42 Bipolar 0 2 Zero 0 0000 0 0366 0 0366 0 0366 0 0366 42 Bipolar 0 2 NegFS 41 5800 41 7605 41 3995 41 7613 41 3987 20 Bipolar 0 5 PosFS 19 8000 19 7319 19 8681 19 7315 19 8685 20 Bipolar 0 5 Zero 0 0000 0 0144 0 0144 0 0144 0 0144 20 Bipolar 0 5 NegFS 19 8000 19 8681 19 7319 19 8685 19 7315 10 Bipolar 1 PosFS 9 9000 9 8900 9 9100 9 8898 9 9102 10 Bipolar 1 Zer...

Page 18: ...Bipolar Zero 0 000000 0 008900 0 008900 0 008900 0 008900 20 Bipolar NegFS 9 990000 10 003266 9 976734 10 003435 9 976565 Table 10 Counter Values for the NI 6115 Counter Values Set Point MHz Lower Limit MHz Upper Limit MHz 5 5 0005 4 9995 Table 11 Analog Input Values for the NI 6120 Range Polarity Gain Test Point 24 Hour Ranges 1 Year Ranges Location Value V Lower Limit V Upper Limit V Lower Limit...

Page 19: ...303 0 008303 0 008303 1 Bipolar 10 NegFS 0 990000 0 999859 0 980141 0 999876 0 980124 0 5 Bipolar 20 PosFS 0 4950000 0 485919 0 504081 0 485911 0 504089 0 5 Bipolar 20 Zero 0 000000 0 008303 0 008303 0 008303 0 008303 0 5 Bipolar 20 NegFS 0 4950000 0 504081 0 485919 0 504089 0 485911 0 2 Bipolar 50 PosFS 0 1980000 0 197655 0 198345 0 197651 0 198349 0 2 Bipolar 50 Zero 0 000000 0 000102 0 000102 0...

Page 20: ...NI 6110 6111 6115 6120 Calibration Procedure 20 ni com Table 13 Counter Values for the NI 6120 Counter Values Set Point MHz Upper Limit MHz Lower Limit MHz 5 4 9995 5 0005 ...