Teledyne 514 - NDIR analyzer - Manual (Page 10)

Teledyne Analytical Instruments
A Business Unit of Teledyne Electronic Technologies
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1.0 Introduction
1.2.5 Local Meter Readout
For analyzer configurations having a remotely located control module,
the local meter is used to read the reference and measuring peak heights, or
the voltage output from the buffer amplifier before voltage-to-current conver-
sion.
When the control module is integral with the analysis section, i. e., the
explosion-proof configuration, the meter is connected to the output of the
control module in order to display the concentration of the component of
interest as well as the previously mentioned information.
1.2.6 Control Module
In the explosion-proof version, the calibration meter is used as an all
purpose readout; in this case, there is some modification in the switching at
both the control module and power module.
In addition to control switching, adjustment (zero and span), and read-
out components, the control module has provisions for five circuit cards: an
automatic zero/extended voltage amplifier, E-to-I converter, I-to-E converter,
power supply, and alarm comparator. The alarm comparator circuit card
incorporates two circuits with jumpers that permit setting the alarm(s) for
high, low, high/low, high/high, and low/low settings. Setpoint adjustments
are performed with potentiometers on the module front panel.
1.3 Typical Applications
WATER MONITORING
Background
Typical Range
Acids, including: 0–4000 PPM
Acetic
Formic
Sulfuric
Acetaldehyde 0–1000 PPM
Air 0–2%
Alcohols, including: 0–400 ppm
Butanol
Ethanol
Isopropanol
Methanol
Alkanes, including: 0–500 ppm
Heptane
Hexane