Fluke                                                       MET/CAL Procedure
=============================================================================
INSTRUMENT:            Fluke 78: CAL ADJ /5520
DATE:                  19-Aug-97
AUTHOR:                Fluke Corporation
REVISION:              $Revision: 1.1 $
ADJUSTMENT THRESHOLD:  70%
NUMBER OF TESTS:       1
NUMBER OF LINES:       53
CONFIGURATION:         Fluke 5520A
=============================================================================
#
# Source:
#   Fluke 78 Service Manual (PN 926923, March 1993, Errata No. 2 9/94).
#
# 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 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 5520A are used in TUR computations.
#
 STEP    FSC    RANGE NOMINAL        TOLERANCE     MOD1        MOD2  3  4 CON
  1.001  ASK-                                                              W
  1.002  HEAD         CALIBRATION ACCESS PROCEDURE
  1.003  DISP         Select the V DC function.
  1.003  DISP
  1.003  DISP         Press the push button five times to select AUTO 4V Range
  1.004  DISP         Remove the four phillips-head screws from the bottom of
  1.004  DISP         the case. Turn the instrument face-up, and grasp the top
  1.004  DISP         cover at both sides. Pull the top cover from the UUT.
  1.005  HEAD         EQUIPMENT SETUP
  1.006  DISP         Ambient temperature: 18C - 28C.
  1.006  DISP         Relative humidity: less than 80%.
  1.006  DISP         Allow the UUT to stabilize.
  1.007  HEAD         CALIBRATION ADJUSTMENT
  1.008  DISP         Connect the 5520A and the UUT as follows.
  1.008  DISP         [32] 5520A NORMAL HI to UUT V Ohm Diode
  1.008  DISP         [32] 5520A NORMAL LO to UUT COM
  1.009  5520         3.5V                                              S  2W
  1.010  DISP         Adjust R26 for a UUT a reading of 3.500+/-0.001V.
  1.011  END