Fluke                                                       MET/CAL Procedure
=============================================================================
INSTRUMENT:            Astro-Med ASC-902: (1 year) CAL VER /5500,34401
DATE:                  26-Aug-97
AUTHOR:                Fluke Corporation
REVISION:              $Revision: 1.6 $
ADJUSTMENT THRESHOLD:  70%
NUMBER OF TESTS:       9
NUMBER OF LINES:       111
CONFIGURATION:         HP 34401A
CONFIGURATION:         Fluke 5500A
=============================================================================
#
# Source:
#   Astro-Med Procedure for ASC-902
#
# Compatibility:
#   5500/CAL 4.0 or MET/CAL 4.0 or later.
#
# Subprocedures:
#   None
#
# Required Files:
#   None
#
# System Specifications:
#   TUR calculation is based on specification interval of the accuracy file.
#   The default 5500A 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.
#
 STEP    FSC    RANGE NOMINAL        TOLERANCE     MOD1        MOD2  3  4 CON
  1.001  DISP         {Procedure not formally tested with UUT.}
  1.001  DISP         {See procedure README file.}
  1.002  ASK-   R     N              P                            F        V
  1.003  ASK+           K                              X
  1.004  HEAD         PRELIMINARY INSTRUCTIONS
  1.005  DISP         Turn unit ON.
  1.005  DISP
  1.005  DISP         Warm-up time: 30min - REQUIRED
  1.005  DISP         Temperature: 23 +/-2 degC
  1.005  DISP         Humidity: 55 +/-10%
  1.006  DISP         [32]                WARNING
  1.006  DISP         HIGH VOLTAGE is used or exposed during the performance
  1.006  DISP         of this calibration.  DEATH ON CONTACT may result if
  1.006  DISP         personnel fail to observe safety precautions.
  1.007  DISP         Extension Card:  Astro-Med part number 30776-001
  1.008  HEAD         SET-UP PROCEDURE
  1.009  DISP         Turn UUT OFF!
  1.009  DISP
  1.010  DISP         Remove the right side cover of the ASC-902.
  1.010  DISP
  1.010  DISP         Connect the extension card to the signal conditioner PCB
  1.010  DISP         and reinsert into the card cage.
  1.011  DISP         Set the ASC-902 switches to the following positions:
  1.011  DISP         [32] Filter: OFF
  1.011  DISP         [32] Zero Suppression: OFF
  1.011  DISP         [32] Mode: P-P
  1.011  DISP         [32] Coupling: DC
  1.011  DISP         [32] Polarity: NON-INV
  1.012  DISP         Place the Negative meter lead to common input
  1.012  DISP         (black binding post on back of card cage).
  1.012  DISP
  1.012  DISP         Turn UUT ON.
  1.013  DISP         Short the inputs together by placing a jumper between
  1.013  DISP         the positive, negative, and common (red, grey, black)
  1.013  DISP         binding posts on the back of the card cage.
  1.014  HEAD         {INPUT NULL}
  1.015  DISP         Connect the 34401A to the UUT as follows:
  1.015  DISP         [32] 34401A Input HI to TP6
  1.015  DISP         [32] 34401A Input Lo to signal ground
  1.016  DISP         Set the Attenuator/Range to 1mV/div.
  1.017  34401        0.000V         0.001U                                2W
  2.001  HEAD         {RANGE NULL}
  2.002  DISP         Set the Attenutor/Range to 1V/div.
  2.003  34401        0.000V         0.001U                                2W
  3.001  HEAD         {FINAL NULL}
  3.002  DISP         Connect the 34401A to the UUT as follows:
  3.002  DISP         [32] 34401A Input HI to pin 2 of edge connector on the
  3.002  DISP         [32] BNC connector on the back card cage (signal out)
  3.002  DISP         [32] 34401A Input Lo to signal ground
  3.003  34401        0.000V         0.005U                                2W
  4.001  HEAD         {RMS NULL}
  4.002  DISP         Set the Attenuator/Range to OFF.
  4.002  DISP         Set the Mode to RMS.
  4.003  34401        0.000V         0.005U                                2W
  5.001  HEAD         {P-P GAIN}
  5.002  DISP         Connect the 5500A to the UUT binding posts as follows:
  5.002  DISP         [32] 5500A NORMAL HI to UUT Positive (red)
  5.002  DISP         [32] 5500A NORMAL LO to UUT Negative (grey)
  5.002  DISP
  5.002  DISP         Leave the 34401A connected to the UUT.
  5.003  DISP         Set Mode to P-P
  5.003  DISP         Set Attenuator/Range to 10mV per division.
  5.004  5500         0.500V                                            S  2W
  5.005  34401        0.500V         0.005U                                2W
  6.001  HEAD         {RMS GAIN}
  6.002  DISP         Set Mode to RMS
  6.002  DISP         Set Attenuator/Range to 10mV per division.
  6.003  5500         1.000V                                            S  2W
  6.004  34401        1.000V         0.005U                                2W
  7.001  HEAD         {ZERO SUPPRESSION}
  7.002  DISP         Remove the input signal.
  7.003  DISP         Set the Attenuator/Range to 10mV per division.
  7.003  DISP         Set Zero Suppression dial to 5.
  7.003  DISP         Set Zero Suppression switch to +.
  7.004  34401        5.000V         0.050U                                2W
  8.001  DISP         Set Zero Suppression switch to -.
  8.002  34401        -5.000V        0.050U                                2W
  9.001  END