Teradyne Z1800 Series, Руководство оператора

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Z1800-Series Operator’s Guide
Emergency Power Off
To turn off power to everything connected to the tester, turn off the AC breaker. The AC
breaker is on the AC power distribution assembly for all Z1800-series testers except for the
Z1820/00 breaker. The Z1820/00 AC breaker is on the rear panel.
Note:
Because turning off power to everything connected with the tester may result in loss of data
if the computer is powered off at the same time, you should do it only in emergencies.
Emergency Manual Off
Switch
Z1890, Z1888, Z1884, Z1880, Z1808, and Z1805
The Emergency Manual Off (EMO)
switch is a large red button set in a black panel at the left front corner of the tester tabletop.
Push the switch to activate it. Turn the switch to reset it.
Activating the EMO has the same effect as pressing the Power Control switch on the
operator control panel. Power remains on the line conditioner, AC power control, and
unswitched user outlets.
For the Z1890, 1888, and Z1880, the EMO may be flush with the tabletop, or you can tilt it
15 degrees up from the tabletop. A screw at the back of the switch secures it in the desired
position.
External Hazards Be aware of the hazards described below which are on the outside of the tester. Hazards
may be electrical or mechanical.
Electrical Electrical hazards include test points, fixture receiver, and AC connections at the rear of the
tester.
Test Points
The E, F, and G test points on the test jack panel can have high voltages when
the analog debug light is on.
Fixture Receiver
Hazardous voltage may be present on the fixture receiver.
AC Power Distribution Assembly or Rear Panel(s)
Hazardous voltage and current may
be present at the AC power input and the user outlets.
Mechanical Mechanical hazards include fixture receiver pins, test area probes, fixtures, and printers.
Fixture Receiver Pins
Use caution to avoid puncture wounds.
Test Area Probes
Use caution with probes to avoid puncture wounds.
Fixtures
Tools left inside the fixture will damage the pins or cause shorts.
Use care when lifting heavy fixtures.
If your fixture is hinged, be sure it is locked together before picking it up. The hinged
bottom of the fixture must be mated to the fixture, and the spring-loaded release on the left
side of the fixture must be retracted into the sleeve.
Printer(s)
After extended use, the print head is hot.