Teledyne 7500ZA - Infrared Gas Analyzer - Manual (Page 32)

Installation Model 7500ZA
Teledyne Analytical Instruments 16
(1) Power Supply (standard terminal 1 to 2)
Connect the power supply to the power terminal, and connect the ground
wire to the grounding terminal (standard terminal 3). Be sure to provide
a protective earth connection. Use solderless terminals (for M4) for
connection to the terminals (power and earth). See the figure below.
For the infrared gas analyzer, install an accessory ferrite core (to
the power supply terminal stand side) on the AC power supply wiring
line. See below.
CAUTION: AFTER WIRING IS COMPLETE, BE SURE TO
REPLACE THE PROTECTIVE COVER OVER THE
TERMINAL BLOCKS.
Note: Avoid installing this instrument near an electrical unit (high
frequency furnace or electric welder) that generates
electrical noise. If using the instrument near such a noise
generating unit is unavoidable, use a different power line.
Mount a noise suppressor such as varistor or spark
quencher to the noise
generating unit when
source of noise is due to
relays or solenoid valves.
See accompanying figure.
Mount the suppressor
near the noise source;
otherwise its effect will be
diminished.