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Series 4030
Teledyne Analytical Instruments iv
system. See the procedures for purging and leak
checking this instrument on the following pages.
If toxic gases or other hazardous materials are
introduced into the sample system, the same
precautions regarding leak checking and purging
apply to the sample lines and sample supply or
delivery lines.
WARNING: ELECTRICAL SHOCK HAZARD. WITH THE
EXCEPTION OF OPENING THE DOOR AND
ADJUSTING THE PRESSURE REGULATORS, FLOW
CONTROLLER, OR OBSERVING THE PRESSURE
GAUGES AND THE FLOWMETER, ONLY
AUTHORIZED AND SUITABLY TRAINED
PERSONNEL SHOULD PERFORM WORK INSIDE OF
THE INSTRUMENT. COMPONENTS WITHIN THE
COVER ON THE INSIDE OF THE DOOR, INSIDE THE
ISOTHERMAL CHAMBER (SAMPLE SYSTEM), AND
ON THE ELECTROMETER-AMPLIFIER PC BOARD
CONTAIN DANGEROUSLY HIGH VOLTAGE
SUFFICIENT TO CAUSE SERIOUS INJURY OR
DEATH.
There are the following three types of inaccessible
shock hazards within the Analyzer:
1. Line voltages and line related voltages such as
115 VAC which exists within the 230 VAC
versions as well. These voltages stop when the
Analyzer is turned off and the mains (line) cord is
removed from the instrument.
2. The sensor anode supply voltage (approximately
250 VDC). This voltage exists on the Flame
Guard, anode power supply, PCB, the
motherboard, and the anode/igniter terminals on
the sensor. THIS VOLTAGE WILL REMAIN
HAZARDOUS FOR MANY MINUTES AFTER THE
ANALYZER HAS BEEN TURNED OFF!
3. External hazardous voltages which may be
connected to the Analyzer alarm relay
connections.