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2 Installation
Model 6000A
2-2: Part II
Teledyne Analytical Instruments
2.2.2 Electrical Power Connections
The system requires a supply of 115 VAC, single-phase power. Power
connections are made inside the control unit. Refer to the input-output diagram
for more information. The electrical power service must include a high-quality
ground wire. A high-quality ground wire is a wire that has zero potential
difference when measured to the power line neutral.
2.2.3 Compressed Air Supply
The system may require a supply of air to drive pneumatically activated
valves or for use as zero gas. In general, a 2 liter/minute supply of compressed
air at a maximum of 150 psig is usually sufficient. The air supply must have far
greater capacity when purging of the system or ejectors are used (special
systems).
2.2.4 Pipe Connections
Refer to Appendix Piping Drawings for information about pipe connec-
tions. On special systems, consult the text in the manual that describes your
particular sample system in detail.
2.2.5 Signal and Alarm Output Connections
Signal and alarm output connections are made inside the control unit to
terminal blocks mounted on the interface PC board.
Note: For current outputs, the signal circuit resistance, including
accessory devices, must not exceed 1000 ohms. The alarm
contact circuit must not draw more than 3 amperes at 115 VAC
(non-inductive) or 30 VDC. Refer to the following section.
2.2.6 Sample Delivery System
The sample delivery system should be designed to operate reliably and
must be of large enough capacity to avoid flow stops or bubbles in liquid
samples. A pump is required only if there is insufficient pressure to reliably
supply the sample to the system equipment panel. Do not complicate the
delivery system by adding a pump unless it is absolutely necessary. If a pump
is required, select a type that can handle the sample (corrosion), as well as meet
the area classification and Environmental conditions.
Содержание 6000A
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Страница 65: ...Part II 1 3 Photometric Analyzer Operational Theory 1 Teledyne Analytical Instruments 6000A Unit Only D 69023...
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