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WAVECREST  Corporation

Calibration Procedure for the DTS-2070

Time Measurement System

Summary of Contents for DTS-2070

Page 1: ...WAVECREST Corporation Calibration Procedure for the DTS 2070 Time Measurement System ...

Page 2: ... as a routine expression of that philosophy For this reason any current WAVECREST product may differ in some respect from its published description but will always equal or exceed the original design specifications unless otherwise stated Copyright 1998 WAVECREST Corporation A Technologies Company 7275 Bush Lake Road Edina Minnesota 55439 612 831 0030 800 733 7128 All Rights Reserved Rev 1 0 ...

Page 3: ...and cable 1 Virtual Instruments or calibration software Notes 1 Use only electronic test equipment with calibrations traceable to NIST standards 2 Refer to the DTS 2070C User s Guide for general operating instructions 3 For all measurements using the DTS 2070C the system s cover should be installed and the system should be allowed to warm up at least 15 minutes 4 All calibration operations should ...

Page 4: ...z or 230V 50 Hz Turn on the main power switch at the rear of the system Then turn on the standby switch on the front panel Verify the display illuminates both fans are blowing air OUT of the system and the system initiates its self test routine Make the following measurements referenced to chassis ground and adjust the power supply outputs if necessary Record the following voltage readings on the ...

Page 5: ...age is 5VDC 0 05V If adjustment is required the 5VDC module closest to the DTS center bulkhead must be adjusted at VOUT 2 8 Using the voltmeter measure 2VDC at TP4 of the back plane Verify the voltage is 2VDC 0 02V Reference Voltage Check 2 9 Using the digital voltmeter probe the red and black pin jacks located on the back panel of the DTS verify the DC voltage reads within 1 1m VDC of the value r...

Page 6: ...an internal calibration sequence by pushing the INT CAL button on the front panel The display will indicate the time remaining to accomplish the internal calibration counting down on the display When the countdown reaches 0 seconds the display will change to CALIBRATED The previous mode and display then returns 4 2 Press the EXT CAL button on the front panel The display will direct the user from t...

Page 7: ...splay It may be necessary to measure and set the DC voltage at the DTS input connectors using a T adapter 6 0 Calibration Signal Outputs 6 1 Using the frequency counter and the oscilloscope and BNC SMA adapter if required measure the outputs of both the CAL1 and CAL2 connectors Verify the outputs are 2 0Vpp 0 2V 200 MHz 200 Hz Note It is necessary to terminate both CAL outputs to 50 ohms when meas...

Page 8: ... the DTS in a known defaults state 7 3 Go to Menu 4 and set the Number of Readings sample size to l0 000 SETS to l and press CONT Then go to Menu 7 7 4 With the TRIG field set to 50 50 scroll through the various measurement options shown below and record the measurements Verify JITTER JTrms measures 6ps 2KHz for frequency Then connect CAL1 to CH2 and CAL2 to CH1 Scroll through the various measurem...

Page 9: ...enu 9 and set GATE ON H Then press CONTINUOUS 8 6 Determine the approximate amount of time it takes the DTS to obtain l0 000 samples This can be done by watching Menu 6 Then change the gating duty cycle on the function generator from 5 nsec to 2 nsec The time to obtain the 10 000 samples should now be more than twice as long 8 7 Remove all test equipment and cabling from the DTS 9 0 Shut Down the ...

Page 10: ...ake Road Edina MN 55439 Yes please include me when you distribute future new versions of the DTS 2070C Calibration Procedure NAME __________________________________________________________ COMPANY ______________________________________________________ ADDRESS _______________________________________________________ ADDRESS _______________________________________________________ CITY _______________...

Page 11: ...eadquarters West Coast Office 7275 Bush Lake Road 1735 Technology Drive Suite 400 Edina MN 55439 San Jose CA 95110 612 831 0030 408 436 9000 FAX 612 831 4474 FAX 408 436 9001 Toll Free 1 800 733 7128 1 800 821 2272 www wavecrestcorp com 207005 01 REV A ...

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