Fluke Corporation MET/CAL Procedure ============================================================================= INSTRUMENT: Fluke 8062A: CAL ADJ /5720 DATE: 13-Feb-95 AUTHOR: Fluke Corporation REVISION: $Revision: 1.1 $ ADJUSTMENT THRESHOLD: 70% NUMBER OF TESTS: 1 NUMBER OF LINES: 83 CONFIGURATION: Fluke 5720A ============================================================================= # # Source: # Fluke 8062A instruction manual (P/N 632695, March 1982, Rev. 2, 3/93) # # Compatibility: # MET/CAL 4.1 or later # # Subprocedures: # None # # Required Files: # None # # System Specifications: # TUR calculation is based on specification interval of the accuracy file. # The default 5720A accuracy file contains 90 day specs. # # Fluke makes no warranty, expressed or implied, as to the fitness # or suitability of this procedure in the customer's application. # # The 90 day specifications of the 5720A are used in TUR computations. # STEP FSC RANGE NOMINAL TOLERANCE MOD1 MOD2 3 4 CON 1.001 ASK- W 1.002 HEAD EQUIPMENT SETUP 1.003 DISP [32] WARNING 1.003 DISP HIGH VOLTAGE is used or exposed during the performance 1.003 DISP of this calibration. DEATH ON CONTACT may result if 1.003 DISP personnel fail to observe safety precautions. 1.004 DISP Ambient temperature: 21degC - 25degC. 1.004 DISP Relative humidity: less than 80%. 1.004 DISP Allow the UUT 30 min. to stabilize. 1.004 DISP NOTE: The top AC shield should remain installed on the 1.004 DISP instrument while the calibration adjustments are being 1.004 DISP performed. The positions of the trimpots and trimcaps 1.004 DISP are marked on the top AC shield along with a table 1.004 DISP summarizing the calibration procedures. 1.005 DISP The performance of the 8062B AC functions is affected 1.005 DISP by the capacitance between the main PCB and the bottom 1.005 DISP AC shield, which is dependent on the distance between 1.005 DISP them. The distance may vary, depending on whether the 1.005 DISP top cover is installed. To minimize performance 1.005 DISP variations, press down on the AC shield to simulate top 1.005 DISP cover installation while you perform the AC calibration. 1.006 DISP TURN ON UUT. 1.007 HEAD DC VOLTAGE ADJUSTMENT 1.008 DISP Connect the 5720A and the UUT as follows. 1.008 DISP [32] 5720A OUTPUT HI to UUT V Ohm S 1.008 DISP [32] 5720A OUTPUT LO to UUT COMMON 1.009 DISP Turn R6 fully clockwise (CW). 1.009 DISP Turn R5 fully counterclockwise (CCW). 1.010 RNG 2V 1.011 5720 1.9000V S 2W 1.012 DISP Adj R6 (COARSE) for a reading between 1.9010 and 1.9025 1.013 DISP Adj R5 (FINE) for a UUT reading of 1.9000+/-0.0001V 1.014 5720 * S 1.015 RNG 200mV 1.016 5720 190.0mV S 2W 1.017 DISP Adjust R8 for a reading of 190.00+/-0.01mV 1.018 5720 * S 1.019 HEAD AC VOLTAGE ADJUSTMENT 1.020 DISP Turn R18 fully clockwise (CW). 1.020 DISP Turn R15 fully counterclockwise (CCW). 1.021 RNG 200mV AC 1.022 5720 100.00mV 200H S 2W 1.023 DISP Adj R15 (COARSE) for a reading between 100.40 and 100.95 1.024 DISP Adj R18 (FINE) for a UUT reading of 100.00+/-0.05mV 1.025 5720 * S 1.026 RNG 2V AC 1.027 5720 1.0000V 10kH S 2W 1.028 DISP Adjust C7 for a reading of 1.0000+/-0.0015V 1.029 END