Section 1 Instrument Overview; How To Use The Manuals; General Description; Instrument Enclosure - Hach APA 6000 Operation Manual

Section 1

1.1 How to Use the Manuals

1.2 General Description

1.2.1 Instrument Enclosure

1.2.2 Autoburette Module

Page 6
Instrument Overview
Instrument Overview
This instrument requires two manuals for complete operating instructions. The
APA 6000™ Installation and Maintenance Manual (Cat. No. 62005-18)
provides instructions for instrument installation, menu setup, operation,
maintenance, and troubleshooting.
This Parameter-specific Operation Manual (Cat. No. 62029-18) contains
information related to parameter specific instrument components and
software functions. Descriptions of reagents and standards and their
consumption rates, method of analysis, operational sequence, and bench
comparison testing are all addressed in this parameter specific manual.
The APA 6000 Copper Process Analyzer is a microprocessor-controlled
process analyzer designed to continuously monitor a sample water stream for
2+
copper as Cu in clean water. Typical samples may include effluent streams
from circuit board manufacturing, integrated circuit manufacturing, metal
plating, and other chemical manufacturing.
Low-range and high-range models are available. The models require a
different calibration standard and circuit board setting. Please see
section 1.2.8 on page 8 for more information.
The analyzer can measure two sample streams. The cycle time is
4.5 minutes. A colorimetric chemical method is used to determine copper
concentrations in the sample streams. Measurement unit options include
ppm, ppb, mg/L, and µg/L.
The reagent containers are sized to provide reagents for 30 days of
continuous operation. All reagent containers are factory-filled to 1000 mL and
meet Hach's quality standards. Reagents and standards are plumbed from
the reagent enclosures on the side of the instrument. All tubing enters the
instrument at the ports at the bottom of the instrument bezel.
The internal instrument temperature is factory set at 40 °C (104 °F). The
design of the analyzer door and instrument panel provides a small, insulated
space ensuring temperature control for accurate analysis. In order for the
temperature control system to function properly, the instrument door must
remain closed and latched during operation.
The instrument enclosure houses various modules, the instrument's
power supply, and control circuitry. Within the enclosure, a module panel
separates sensitive electrical components from the wetted parts. All
openings to the module panel are gasketed to protect against leakage.
The module panel folds out to allow access to the electrical connections at the
back of the instrument.
The analyzer uses a positive-displacement autoburette to measure and
move fluids through the various analytical components in the instrument.
The autoburette module consists of a clear acrylic block which houses a
ceramic piston, a double seal for the piston, a linear actuator, a two-way
solenoid valve, and control circuitry. The burette has an overall volume of
1.6 mL and can move in either direction to aspirate or dispense fluids over a
0.1 to 8.0 mL/minute range.
6202918overview.fm