Scientific 5000 Series, Manual, Page: 40 / 360

2 - INSTALLATION
2-2
Version 1.23
MODEL 5000 SERIES MANUAL
If it is not, open the cover door on the fused connector on the rear panel. Select
either 120 or 240 VAC by orienting the printed selector board to position the correct
voltage on the top left side. Push the board firmly back into its slot.
Provision for grounding the 5000 Series Tester has been made in accordance with
NEMA recommendations. The third pin of the power cord grounds the chassis when
plugged into a 3-wire grounded socket. If a 2 contact socket is used, a 3-prong to 2-
prong adaptor should be used with the green wire of the adaptor connected to earth
ground.
2.1.3 Line Noise
The 5000 Series Tester contains a power line filter to reduce noise that might
otherwise adversely affect system operation. This filter is adequate for most
installations. If your power is particularly noisy or is near heavy switched loads or
motors, it may be necessary to employ additional filtering. Use a low capacitance
isolation transformer such as those manufactured by Topaz Electronics or Sola
Electric, or other suitable line conditioner or filter.
2.1.4 Self-Test Diagnostic
The 5000 Series Tester contains a self-test program resident within a memory chip.
Exercise of this routine will verify approximately 90% of system functions including
most major items such as relays and power sources. Run this program per
instructions that follow to be assured the unit has been received in good working
order.
Install the Self-Test fixture (pc-board with banana plugs) and shorting bar in the
interlock jacks. Then apply power to tester by turning on power switch located at rear
above fan.
Connect the PC to the 5000 Series Tester via the 9-pin D-Sub cable and null modem
supplied and run the System Self-Test from the 5000 Series Interface Software.
Refer to Section 6.3.1.3.1 for details.
2.1.4.1 Test Systems with Front Panel Display and Keyboard
LED‟s should momentarily turn on then off and a message should be displayed. At
“**NO PROGRAM**” scroll through the main menus by pressing [ENTER] until
“SELF-TEST?” appears. Press [YES] twice and then press [Start/Stop], the display
should read “CHECK-OUT GOOD” if everything is functioning properly. Refer to
Section 7.2 for further information.
2.2 Handler Device Attachment
For use with handler, attach device test jacks to the appropriate handler contacts.
The handler becomes the device fixture. Use factory supplied device-to-handler and
Control cable (extra charge items, see Price Guide). Device-to-handler cable
provided by Scientific Test, for systems without a Lo Current Deck, has built-in Kelvin
contact continuity testing (see Appendix D). The Lo Current Deck has built-in Kelvin
test. The shields on this cable are driven by the 5000 Series Tester and
should not
be terminated to ground at the handler . The gate (base) drive lead should contain
suppression circuitry in series, just as in a test fixture, as close to the device under
test as possible. See Section 3.4 Oscillation Suppression.