Tektronix 634, Instruction Manual

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634 Operators
MEDICAL-DENTAL APPLICATIONS
Do not use the VIDEO INPUTS for direct patient connection. Signal currents at these connectors, as well as
leakage currents, may exceed values considered non-hazardous for direct patient connection.
Although this instrument is not to be used for direct patient connection, interconnecting this Monitor with
other equipment can result in application of excessive current to the patient. It is extremely important that
the equipment be interconnected in accordance with NFPA 76B-T, Tentative Standard for the Safe Use of
Electricity in Patient Care Areas of Health Care Facilities, section 3038, "Signal Transmission Between
Appliances". Also refer to NFPA 70, National Electrical Code, paragraphs 517-120 through 517-122.
Do not operate this instrument in the presence of flammable gases or anesthetics. Explosion can result from
operation in such an environment.
USE THE PROPER FUSE
Refer fuse replacement to qualified service personnel only. To avoid electric shock and fire hazard, use only
the fuse specified in the parts list for your instrument and which is identical in the following respects.
A. Type—Slow blow, fast blow, etc.
B. Voltage rating—250 V, etc.
C. Current rating.
DO NOT REMOVE PROTECTIVE COVERS
High-voltage is present inside the instrument. To avoid electric shock, operating personnel must not remove
protective covers. Component replacement and internal adjustments must be made by qualified service
personnel only.
LIMIT INPUT SIGNAL VOLTAGE
To avoid electric-shock hazard and to protect the instrument, do not apply input signals of greater than 5 volts
(dc + peak ac).
PREVENT IMAGE BURN-IN ON CRT PHOSPHOR
To avoid damaging the crt phosphor, do not allow a stationary bright image to remain on the screen any
longer than necessary.