Fluke MET/CAL Procedure ============================================================================= INSTRUMENT: Wavetek 2010: CAL ADJ /5520 INSTRUMENT: Wavetek 2020: CAL ADJ /5520 INSTRUMENT: Wavetek 2030: CAL ADJ /5520 DATE: 12-Sep-97 AUTHOR: Fluke Corporation REVISION: $Revision: 1.2 $ ADJUSTMENT THRESHOLD: 70% NUMBER OF TESTS: 1 NUMBER OF LINES: 139 CONFIGURATION: Fluke 5520A ============================================================================= # # Compatibility: # 5500/CAL 5.0 or MET/CAL 5.0 or later. # # Subprocedures: # None # # Required Files: # None # # System Specifications: # TUR calculation is based on specification interval of the accuracy file. # The default 5520A accuracy file contains 90 day specs. # # Fluke Corp. makes no warranty, expressed or implied, as to the fitness or # useability of this procedure. # STEP FSC RANGE NOMINAL TOLERANCE MOD1 MOD2 3 4 CON 1.001 ASK- R P J F W 1.002 ASK+ K X 1.003 HEAD PRELIMINARY INSTRUCTIONS 1.004 DISP Warm-up time: NONE 1.004 DISP Temperature: 0° - 50degC 1.004 DISP Humidity: 0 - 80% 1.005 DISP [32] WARNING 1.005 DISP HIGH VOLTAGE is used or exposed during the performance 1.005 DISP of this calibration. DEATH ON CONTACT may result if 1.005 DISP personnel fail to observe safety precautions. 1.006 DISP [32] WARNING 1.006 DISP To prevent a shock hazard, remove ALL the test leads 1.006 DISP from the instrument and turn the instrument OFF 1.006 DISP before disassembling the UUT. 1.007 HEAD DISASSEMBLY INSTRUCTIONS 1.008 DISP Remove the instrument from the holster(if necessary). 1.008 DISP 1.008 DISP Remove the three(3) screws holding the front and rear 1.008 DISP case halves together. 1.008 DISP 1.008 DISP Separate the front and rear case halves. 1.009 HEAD DC VOLTAGE 1.010 DISP Connect the 5520A to the UUT as follows: 1.010 DISP [32] 5520A NORMAL HI to UUT V/OHM 1.010 DISP [32] 5520A NORMAL LO to UUT COM 1.011 DISP Turn on the UUT. 1.012 DISP Select the DCV Function. 1.012 DISP Set RANGE LOCK to 1000mV. 1.013 JMPT 1.017 WAVETEK 2030: CAL ADJ /5520 1.014 5520 800.0mV S 2W 1.015 DISP Adjust TRM1 for a display reading of 800.0mV +/-0.4mV 1.016 JMP 1.019 1.017 5520 800.0mV S 2W 1.018 DISP Adjust TRM1 for a display reading of 800.0mV +/-0.2mV. 1.019 5520 800.0mV S 2W 1.020 DISP Adjust TRM2 for an indication of "8" on the BAR GRAPH. 1.021 5520 * S 1.022 HEAD AC VOLTAGE 1.023 5520 800.0mV 200H SI S 2W 1.024 DISP Select the VAC Function. 1.024 DISP Set RANGE LOCK to 1000mV 1.025 JMPT 1.027 WAVETEK 2010: CAL ADJ /5520 1.026 DISP Press the SECOND FUNCTION and the BACKLIGHT buttons at 1.026 DISP the same time to enable internal AC converter. 1.027 DISP Adjust TRM4 for a display reading of 800.0mV +/-0.4mVAC. 1.028 JMPT 1.053 WAVETEK 2010: CAL ADJ /5520 1.029 HEAD AC RMS (2020,2030 only)[D2999] 1.030 HEAD BALANCE 1.031 DISP Select the VDC Function. 1.031 DISP Set RANGE LOCK to 1000mV. 1.031 DISP Press the SECOND FUNCTION to select AC+DC. 1.032 DISP The following adjustment (TRM5) will be adjusted for the 1.032 DISP same ABSOLUTE NUMBER +/-2 counts. 1.032 DISP 1.032 DISP The 5520A will apply positive voltage first, then a 1.032 DISP negative voltage to allow Adjustment of TRM5 for the 1.032 DISP same absolute magnitude. 1.033 HEAD BALANCE 1.034 5520 500.0mV S 2W 1.035 DISP RECORD THE POSITIVE DISPLAY READING. 1.036 5520 -500.0mV S 2W 1.037 OPBR Is the - reading the SAME ABSOLUTE NUMBER 1.037 OPBR as the + display reading +/-2 counts? 1.038 5520 * S 1.039 JMPT 1.045 1.040 5520 -500.0mV S 2W 1.041 DISP Adjust TRM5 for the SAME ABSOLUTE VALUE reading 1.041 DISP as the recorded value. - RECORD THIS READING! 1.042 5520 500.0mV S 2W 1.043 DISP If the ABSOLUTE READING is NOT the same as the recorded 1.043 DISP value, Adjust TRM5 for a better alignment between the 1.043 DISP + and - ABSOLUTE VALUES. 1.044 JMP 1.033 1.045 HEAD LEVEL 1.046 5520 500.0mV S 2W 1.047 OPBR Is the display reading 500.0mV +/-0.4mV? 1.048 5520 * S 1.049 JMPT 1.053 1.050 5520 500.0mV S 2W 1.051 DISP Adjust TRM3 until the display reads 500.0mV +/-0.4mV. 1.051 DISP 1.051 DISP This adjustment interacts with the previous balance 1.051 DISP adjustment. This procedure will lead you through to 1.051 DISP retest both adjustments before continuing. 1.052 JMP 1.033 1.053 HEAD FREQUENCY 1.054 DISP Select the VAC Function. 1.054 DISP Make sure RANGE LOCK is disabled! 1.055 5520 800.0mV 5000H SI S 2W 1.056 OPBR Is the reading 798.0mV +/-1.0mV? 1.057 JMPT 1.059 1.058 DISP Adjust CA2 until display reads 798.0mV +/-1.0mV. 1.059 5520 8.000V 5000H SI S 2W 1.060 OPBR Is the reading 7.900V +/-.01V? 1.061 JMPT 1.065 1.062 DISP Adjust CA1 until display reads 7.900V +/-.01mV. 1.063 DISP The previous adjustments interact (CA1 & CA2). This 1.063 DISP procedure will ensure both adjustments are correct. 1.064 JMP 1.055 1.065 5520 * S 1.066 END