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3 Installation
Figure 3-2: Contact ID for FAILSAFE Relay Operation
The specific descriptions for each type of alarm are as follows:
Alarm #1
Alarm #2
Sensor Fail
CAUTION:
Internal Sensor Wiring: The receptacle for the analysis unit cable is
located in the lower left-hand corner of the rear panel. The 6-pin polarized
connector is keyed to fit only one way into the receptacle. Do not force it in.
The other end of the cable have two terminal connectors. This should be
connected to the header on the top of the sensor.
3.4
Gas Connections
The standard Model 3300PA has two inlets and one outlet fixture only.
Calibration gasses can be connected into the "Span" inlet. The two inlets and
one outlet are 1/8 inch brass fittings.
A selector valve is provided to feed the analysis unit with either sample
or gas.
A flowmeter and a flow controller valve are part of the system and will
assist in setting the flow of the gas.
Sample flow should be adjusted to 2 SCFH. The sample vent connec-
tion should not restrict the sample flow. The sensor is designed to operate at
3-4
Programmable as high or low alarm. Can be set any-
where between 0 and 25 %.
Programmable as high or low alarm. Can be set any-
where from 0 to 25 %.
Actuates when the output of the Micro-Fuel Cell sensor
falls below the acceptable level (0.05% O
There could be hazardous voltage at the alarms termi-
nals, even when power is removed from the instrument.
Teledyne Analytical Instruments
Model 3300
).
2
PA
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