Selector Manifold; Automatic Zero Operation; Electrical Installation; Power Check - Teledyne 514 Instruction Manual

The cell with sapphire windows will withstand up to 600 psi pressure.
TAI does not recommend high pressure sample handling, but don't hesitate
to slightly pressurize the analyzer for optimum results.

3.2.4 Selector Manifold

TAI recommends a three valve selection system that reports into a
"ring" manifold for sample and calibration fluid control. Such a system
will permit you to conserve calibration fluid. Calibration fluids can be
introduced by a simple gravity system. A bypass valve around the differen-
tial pressure regulator is recommended for calibrating with gravity feed.
Calibration fluid flow need only be long enough to insure adequate flush-
ing of the system, and then the calibration fluid drain valve can be closed.
A ring manifold will insure a good flush with a minimum expenditure of
fluid.

3.2.5 Automatic Zero Operation

Analyzers equipped with automatic zero control will require a three-
way electrically or pneumatically actuated valve in the sample system. In
addition, if it is undesirable for zero fluid to return to the process, a similar
three-way valve must be used for the calibration fluid return. In addition, a
time delay on the operation of the second three-way valve is desirable to
allow sample fluid purging of the zero fluid in the analyzer returning to the
process stream. This time delay must be built into the analyzer at the time
of purchase.
With automatic zeroing, zero fluid can be actuated manually by
setting the SAMPLE-ZERO switch to the ZERO position. Span fluid is
introduced by setting the switch to SPAN.
3.3

Electrical Installation

3.3.1 Power Check

1. Plug in the +15 volt power supply PC card (see dwg. B-14708)
but leave all other PC boards out.
2. Turn power ON.
3. With a digital multimeter (DMM), check for +15 volts on the
+15 volt power supply.
4. Check for proper starting of the chopper motor and source lamp.
Teledyne Analytical Instruments
A Business Unit of Teledyne Electronic Technologies
Installation 3.0
3–3