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PCA 300/PCA 301 Series PCA 300/PCA 301
Series
Panel-mounted,
Microprocessor-based
Chlorine Analyzers
Instruction Manual 2
TABLE OF CONTENTS
PRELIMINARY EXAMINATION . . . . . . . . . . . . 4
GENERAL DESCRIPTION. . . . . . . . . . . . . . . . 5
MECHANICAL DIMENSIONS . . . . . . . . . . . . 6
FUNCTIONAL DESCRIPTION . . . . . . . . . . . . 7
LED DISPLAY, INDICATORS AND KEYBOARD . 8
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . 10
OPERATING DESCRIPTION . . . . . . . . . . . . . 12
Method of analysis . . . . . . . . . . . . . . . . 13
INITIAL PREPARATION AND INSTALLATION . 14
Installation Personnel . . . . . . . . . . . . . . 14
Location of the Instrument . . . . . . . . . . . 14
Hydraulic Connections . . . . . . . . . . . . . 14
Installing the Input Filter . . . . . . . . . . . . 16
Installing the Pump Tubes . . . . . . . . . . . 16
Electrical Connections . . . . . . . . . . . . . 18
Dear Customer,
Thank you for choosing a Hanna Product.
This instruction manual has been written for the following products:
PCA 300
Free Chlorine Analyzer with features such as alarm functions, user-se-
lectable sampling periods, LED warning indications, recorder outputs,
RS232 port and a Nema 4X, 12 and 13 enclosure.
PCA 301
Total Chlorine Analyzer with features such as alarm functions, user-
selectable sampling periods, LED warning indications, recorder outputs,
RS232 port and a Nema 4X, 12 and 13 enclosure.
PCA 300A
Same as PCA 300 except for the RS232 port which is not supplied.
PCA 301A
Same as PCA 301 except for the RS232 port which is not supplied.
PCA 300AC This OEM version is exactly the same as PCA 300 except for the
RS232 port and the enclosure.
PCA 301AC This OEM version is exactly the same as PCA 301 except for the
RS232 port and the enclosure.
Please read this instruction manual carefully before using the instrument. It will pro-
vide you with the necessary information for the correct use of the instrument, as well as a
more precise idea of its versatility.
These instruments are in compliance with
directives. The PCA 300 and PCA 301 are
also registered by Underwriters Laboratories Inc. (UL approved). 3
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Instrument Power On . . . . . . . . . . . . . . . . 22
Display Brightness . . . . . . . . . . . . . . . . . . 22
Minimum and Maximum Concentration . . . 23
Sampling Rate . . . . . . . . . . . . . . . . . . . . 24
Priming the Reagent System . . . . . . . . . . . 24
ANALYZER PROGRAMMING . . . . . . . . . . . . . 26
Proportional Dosing . . . . . . . . . . . . . . . . 26
Concentration Setpoint Alarm Setting . . . . . 28
Recorder Output Span Setting . . . . . . . . . . 30
Standby Mode . . . . . . . . . . . . . . . . . . . . 32
Recorder Output Calibration . . . . . . . . . . . 33
Recorder Output Limits Check . . . . . . . . . . 40
Adjusting the Light Source . . . . . . . . . . . . 42
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . 44
Calibration Requirement . . . . . . . . . . . . . . 44
Hydraulic System . . . . . . . . . . . . . . . . . . . 44
Reagents Supply . . . . . . . . . . . . . . . . . . . 44
Changing Peristaltic Pump Tubing . . . . . . . 46
Tubing Replacement . . . . . . . . . . . . . . . . 47
Y Strainer Cleaning . . . . . . . . . . . . . . . 47
Cleaning Measurement Cell . . . . . . . . . . . 47
Relay Test . . . . . . . . . . . . . . . . . . . . . . . . 48
Calibration Procedure . . . . . . . . . . . . . . . 48
ERROR CODES . . . . . . . . . . . . . . . . . . . . . . . 50
OPERATIONAL & DIAGNOSTIC CODES . . . . . 53
INTERFACE WITH PC . . . . . . . . . . . . . . . . . . . 55
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . 56
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . 57
CE DECLARATION OF CONFORMITY . . . . . . . 59
© 1997 Hanna Instruments
All rights are reserved. Reproduction in whole or in part is prohibited without the
written consent of the copyright owner, Hanna Instruments Inc., 584 Park East Drive,
Woonsocket, Rhode Island, 02895 , USA. 4
PRELIMINARY EXAMINATION
Remove the analyzer from the packing material and examine
it carefully to make sure that no damage has occurred dur-
ing shipping. If there is any noticeable damage, notify your
Dealer immediately.
Each analyzer is supplied complete with:
2 reagent bottles (1 indicator and 1 buffer solution)
(PCA 300 and PCA 301 only)
2 reagent bottle caps (PCA 300 and PCA 301 only)
1 DPD compound powder (PCA 300 and PCA 301
only)
tubing
mounting brackets
Note
Save all packing materials until you are sure that the instru-
ment functions correctly. Any damaged or defective items must
be returned in their original packing materials together with
the supplied accessories.
WARNING The PCA300 and PCA 301 series of Chlorine Analyzers are
not designed for use with samples that are inflammable or
explosive in nature. If any sample solution other than water is
used with these products, test the sample/product compat-
ibility to assure user safety and proper product performance.
Safety Precautions
Please take the time to read the safety precautions carefully
wherever they appear in this manual. They are provided to
prevent personal injury and damage to the instrument. This
safety information applies to the operators and service per-
sonnel and the following two captions are used:
CAUTION: identifies conditions or practices that could re-
sult in damage to the instrument or persons;
WARNING: identifies conditions or practices that could
result in personal injury or loss of life.
Note
Because of the inherent dangers in handling chemical
samples, standards and reagents, HANNA Instruments
strongly recommends the users of this product review the
Material Safety Data Sheets and become familiar with safe
handling procedures and proper usage prior to handling
any chemicals. 5
GENERAL DESCRIPTION
The Hanna PCA 300 and PCA 301 series of Chlorine Ana-
lyzers are microprocessor-controlled, process analyzers which
continuously monitor a sample stream for Chlorine content.
The PCA 300 series monitor Free Chlorine and the PCA 301
series Total Chlorine in the 0 to 5 mg/L (ppm) range.
In the DPD Colorimetric method, N, N-Diethyl-p-phenylene-
diamine indicator and a buffer are mixed with the sample.
The resulting chemical reaction causes a magenta color to
form. The color intensity is proportional to the concentration
of Chlorine. The color intensity is measured photometrically
(with a light beam and a photodetector) and converted to
Chlorine concentration, in mg/L, which is displayed on the
front panel, four-digit, LED display.
Indicator and buffer reagent bottles are placed directly into
the instrument case. With a sampling period of 5 minutes,
reagents need to be replenished about once a month. The
reagent bottles are easily visible through the transparent win-
dow to allow the operator to check the reagent levels.
The cases of PCA 300 and PCA 301 meet NEMA 4X, 12
and 13 standards. Molded fiberglass polyester has outstand-
ing chemical and temperature resistance.
External mounting feet provide wall mounting capability and
a seamless gasket assures a watertight and dust-tight seal.
The electrical and hydraulic connections (except for
PCA 300AC and PCA 301AC OEM models) are made
through the side of the enclosure.
The front cover is secured with two lockable
latches. 6
Two selectable chlorine level setpoints can be set by the op-
erator: a proportional dosing setpoint and an alarm setpoint.
Both setpoints control a SPDT relay.
The proportional dosing setpoint analyzers is user-selectable
with a delta from 0.1 to 2.0 mg/L (ppm).
The alarm level can be set by the user to be an activate-
if-lower-than setpoint or an activate-if-greater-than setpoint.
A system alarm feature provides relay activation to signal
need for operator intervention.
The PCA 300 and PCA 301 analyzers can supply data to
an external computer through an RS232C output connec-
tion.
Voltage output levels of 0-10mV, 0-100mV, 0-1V or a cur-
rent output of 4-20 mA are selectable to drive an external
device such as a chart recorder or an external regulator.
Recorder span minimum and maximum values in mg/L
are programmable by the operator through the keyboard.
MECHANICAL DIMENSIONS *
No