. . . . .
SAFETY
Warnings
TP04300 Series Interface & Applications Manual 1-3
WARNING 7: Per SEMI S2-93A, energized electrical work (“Hot Work”) is specified by
Type as follows:
WARNING 8: Where equipment must be fully de-energized (electrically “cold”) to allow safe
entry into system, the following Lockout/Tagout procedure is required per OSHA 29 CFR
1910: a) For devices with a power cord which “unplugs” from a service receptacle, the end
user must supply and tag a Plug lockout shell which completely encloses the plug and prevents
accidental reconnection; b) for devices hardwired to the electrical supply, the end user must
install and tag a power disconnect switch with a lock out position, or install and tag a circuit
breaker with a lock out position, to prevent accidental reconnection.
WARNING 9: To de-energize the System for safe replacement of a module, turn off the ac
power (cease operations and power down), then turn off the System’s air pressure supply, then
bleed all air from System by turning on ac power just long enough to exhaust all air from
System. Now disconnect both the main power supply cord and disconnect the air supply line
from air supply port fitting on the rear frame module. The only stored energy remaining in the
System will then be that within some electrical capacitors. One large capacitor is near the
System’s air-chiller compressor. Other large capacitors are in the System’s electrical power
supplies.
WARNING 10: If service of the Air Chiller Module is required, only a licensed (and/or EPA
Certified) refrigeration service person, authorized by the Temptronic Corporation, is qualified
to perform any charging or handling of the refrigerants in the System.
WARNING 11: Under no circumstances (leak testing or any other purpose) is the Air Chiller
Module to be charged with any gas at a pressure above 150 psig (10.34 bar).
WARNING 12: The Air Chiller Module acts as a counterbalance for the Thermal Head
Assembly. Before removing the Air Chiller Module, make sure the horizontal arm is down on
the vertical C-arm at its lower limit, and the thermal head is in next to the horizontal arm and
stowed toward the rear of the machine. Use appropriate weight lifting equipment when
removing/servicing the Air Chiller module.
WARNING 13: Two persons are required when removing (or installing) the thermal head
assembly at the end of the horizontal arm. One person must lift the thermal head assembly by
the head’s front handles, using both hands, while the other person loosens (or tightens) the
pivot lock.
TYPE DESCRIPTION (per SEMI S2-93A) EXPOSURE
THRESHOLD
1 Fully de-energized (electrically “cold.”) n.a.
2 Live circuits, covered or insulated. Work performed
at remote location to preclude accidental shock.
n.a.
3 Live circuits exposed.
Accidental contact is possible.
<= 30v RMS, 42.2v peak,
240 volt-amps, and 20
Joules
4 Live circuits exposed.
Accidental contact is possible.
> 30v RMS, 42.2v peak,
240 volt-amps, and 20
Joules
5 Energized. Measurements & adjustments require
physical entry, or equipment configuration does not
allow use of clamp-on probes.
n.a.
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