ANATEL A643a User manual

Operator Manual
ANATEL A643a TOC ANALYZER

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Table of Contents
1 Introduction
1.1 The Anatel A643a TOC Analysis System..............................................14
1.2 Anatel A643a Analyzer Features...........................................................15
1.3 Operational Overview ............................................................................16
2 Instrument Installation
2.1 General Information...............................................................................19
2.2 Pre-Installation Procedures....................................................................20
2.2.1 Unpacking & Inspection............................................................20
2.2.2 Operational Verification ............................................................20
2.2.3 Software Setup.........................................................................22
2.3 Hardware Installation.............................................................................26
2.3.1 Mounting...................................................................................26
2.3.2 Plumbing Connections..............................................................29
2.3.3 Communications Connections..................................................33
2.3.4 Power Connections ..................................................................36
2.4 Analyzer Initialization.............................................................................36
3 Network Installation
3.1 General Information...............................................................................39
3.2 Software Setup ......................................................................................39
3.2.1 ID to S/N Cross Reference.......................................................39
3.2.2 Controller Address....................................................................40
3.3 Network Setup .......................................................................................41
3.3.1 Network Connections ...............................................................43
4 C80 Controller Setup
4.1 General Information...............................................................................45
4.2 C80 Controller........................................................................................45
4.3 Operational ............................................................................................46
4.4 Contrast Adjustment ..............................................................................46
4.5 View Options..........................................................................................48
4.5.1 The Single Channel..................................................................48
4.5.2 The Multichannel View .............................................................49
4.5.3 The Channel Display ................................................................50

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5 Anatel A643a Setup
5.1 General Information...............................................................................51
5.2 Factory Defaults.....................................................................................51
5.3 Password Security.................................................................................54
5.4 Display Units..........................................................................................56
5.5 The Auto TOC Mode..............................................................................59
5.5.1 Auto TOC Software Setup........................................................62
5.5.2 Auto TOC Printout....................................................................69
5.6 The Purge Mode....................................................................................71
5.6.1 Purge Printouts.........................................................................72
5.7 The Manual Mode..................................................................................75
5.7.1 Grab Samples...........................................................................76
5.7.2 On-Line Samples......................................................................78
6 Calibration and Validation
6.1 General Information...............................................................................81
6.2 TOC Calibration.....................................................................................82
6.3 TOC Validation.......................................................................................87
6.4 Conductivity Calibration.........................................................................91
6.5 System Suitability...................................................................................95
6.6 Data History...........................................................................................99
7 Anatel A643a Alarms
7.1 General Information.............................................................................101
7.2 Software Setup ....................................................................................101
7.2.1 Alarm Setup............................................................................101
7.2.2 Beeper Setup..........................................................................104
7.3 Alarm Reporting...................................................................................105
7.3.1 Uncompensated Conductivity Alarms.....................................106
7.4 Alarm Acknowledgement.....................................................................108
8 Printer Output
8.1 General Information.............................................................................111
8.2 Hardware Setup...................................................................................111
8.3 Software Setup ....................................................................................114
8.3.1 Internal Log.............................................................................114
8.3.2 Printouts .................................................................................117

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9 Analog Outputs
9.1 General Information.............................................................................121
9.2 TOC Output..........................................................................................121
9.2.1 Hardware Setup......................................................................121
9.2.2 Software Setup.......................................................................123
9.3 Optional Conductivity/Resistivity & Temperature Outputs...................129
9.3.1 Hardware Setup......................................................................129
9.3.2 Software Setup.......................................................................131
10 Digital Inputs & Outputs
10.1 General Information.............................................................................139
10.2 Digital Inputs........................................................................................140
10.2.1 Hardware Setup......................................................................140
10.2.2 Software Setup.......................................................................141
10.3 Digital Outputs .....................................................................................142
10.3.1 Hardware Setup......................................................................143
11 12 VDC Bias Output
11.1 General Information.............................................................................145
11.2 Hardware Setup...................................................................................145
12 Serial Communications
12.1 General Information.............................................................................147
12.2 Hardware Setup...................................................................................147
12.3 Anatel A643a Command Set ...............................................................149
12.3.1 Mode Set Commands.............................................................149
12.3.2 Parameter Set Commands.....................................................150
12.3.3 Data Read Commands...........................................................151
12.3.4 Log Commands ......................................................................152
12.3.5 Data History Commands ........................................................153
13 Anatel A643a Maintenance
13.1 General Information.............................................................................155
13.2 Self-Cleaning Mode .............................................................................155
13.3 Preparatory Maintenance Procedures.................................................157
13.4 UV Lamp Maintenance ........................................................................158
13.4.1 UV Detect Technology............................................................160
13.4.2 Replacing the UV Lamp..........................................................161
13.5 Air Filter Cleaning ................................................................................166
13.6 Lithium Battery Replacement...............................................................166
13.7 Inlet Filter Replacement.......................................................................170
13.8 Printer Paper Replacement..................................................................172

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14 Troubleshooting
14.1 General Information.............................................................................175
14.2 Alarm Codes........................................................................................175
14.3 Troubleshooting...................................................................................178
14.3.1 Draining the Instrument ..........................................................181
14.4 Sensor Diagnostics..............................................................................182
14.4.1 Electronics Tests....................................................................183
14.4.2 ................................................................................Cell Tests184
14.4.3 I/O Tests.................................................................................185
Appendix A:Service Procedures
A.1 Return Procedures...............................................................................189
A.2 Technical Support Information.............................................................189
Appendix B:Specifications and Accessories
B.1 Performance Specifications.................................................................191
B.1.1 Anatel A643a–S Analyzer.......................................................193
B.1.2 Anatel A643a–P Analyzer.......................................................194
B.1.3 C80 Controller ........................................................................195
B.2 Accessories..........................................................................................197
B.2.1 Thermal Printer.......................................................................197
Appendix C:Certifications
C.1 Overview..............................................................................................199
Appendix D:Anatel A643a Menu Flowcharts
Appendix E:Material Data Safety Sheets
Appendix F:Glossary

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Manual Overview
About This Manual
The information in this manual has been carefully checked and is believed to be accurate.
However, Hach Ultra assumes no responsibility for any inaccuracies that may be contained in
this manual. In no event will Hach Ultra be liable for direct, indirect, special, incidental, or
consequential damages resulting from any defect or omission in this manual, even if advised of
the possibility of such damages. In the interest of continued product development, Hach Ultra
reserves the right to make improvements in this manual and the products it describes at any
time, without notice or obligation.
Published in the United States of America
Hach Ultra P/N: FG5704001 Edition 12, June 2007
Copyright © 1998-2007 by Hach Ultra Analytics, Inc.
All rights reserved. No part of the contents of this manual may be reproduced or transmitted in
any form or by any means without the written permission of Hach Ultra.
Safety Conventions
WARNING
A warning is used to indicate a condition which, if not met, could cause serious personal injury
and/or death. Do not move beyond a warning until all conditions have been met.
CAUTION:
A caution is used to indicate a condition which, if not met, could cause damage to the
equipment. Do not move beyond a caution until all conditions have been met.
Note:
A note is used to indicate important information or instructions that should be considered
before operating the equipment.
General Safety Considerations
• Read the Anatel A643a TOC Analyzer Operator Manual thoroughly before installing or
operating the instrument. Although the A643a is designed for rugged use, it is still an
instrument that should be cared for and maintained as described in this manual.
Following proper safety and handling instructions will promote accident free operation
and prolong product life.
• For any questions regarding the Anatel A643a, contact Hach Ultra at 800-866-7889 or
[phone].
• All service procedures should be conducted by properly trained service personnel.
• Make sure the A643a TOC Analyzer is properly installed and all connections are
correctly installed before operation. All safety guidelines should be observed.
• Follow all procedures in “Return Procedures” on page 189 before shipping a unit to a
service center for repair or re-calibration.

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WARNING
Use of controls or adjustments, or performance of procedures other than those specified
herein may result in hazardous radiation exposure.
WARNING
Only factory certified personnel should perform service of the A643a. Attempts by untrained
personnel to disassemble, alter, modify or adjust the electronics and/or hydraulics may result
in personal injury and damage to the A643a.
A643a TOC Analyzer Warnings and Cautions
CAUTION:
It is extremely important that the A643a TOC Analyzer be plumbed correctly to ensure proper
sample flow through the instrument and, consequently, accurate analysis results. The Outlet
Tubing must be 10 feet in length and cannot terminate more than 3 feet below the
Analyzer. For this reason, use the section of polypropylene tubing that is supplied with the
instrument. Coil and tie the tubing if necessary to keep it out of the way, but do not cut it.

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This instrument has been tested and found to be in conformity with the following EU Directive:
• EMC Directive 89/336/EEC Low Voltage Directive 73/23/EEC
This instrument is in conformity with the relevant sections of the following EC Technical
Standards and other normative documents:
• Safety: EN 61010-1:1993 + A2:1995
• EMC: EN 61326:1998
EN 55011:1999
EN 61000-3-2:1995 + A14:2000
EN 61000-3-3:1997
EN 61000-4-2:2001
EN 61000-4-3:2001
EN 61000-4-4:2001
EN 61000-4-5:2001
EN 61000-4-6:2001
EN 61000-4-11:2001
Note:
The CE Marking applies only to 230 VAC instruments and has been affixed on the devices
according to the EU Directives noted above.
The A643a TOC Analyzer complies with those parts of 21 CFR, Part 11 concerning the
collection, retention, access and retrieval of data as electronic records. The instrument uses no
electronic signature(s), thus those parts of the rule referring to electronic signature(s) are not
applicable. Extensively documented and verifiable tests have been conducted to establish
21 CFR, Part 11 compliance.
The A643a TOC Analyzer System is comprised of a line of precision instruments which meet
or exceed the following international requirements and standards of compliance:
EN61010–1
Electrical Equipment for Laboratory Use,
Part 1: General Requirements
CAN/CSA–C22.2 No. 1010.1–92
Safety Requirements for Electrical Equipment for Measurement, Control and
Laboratory Use, Part 1: General Requirements
Customer satisfaction through continuous quality improvements.
In addition, the following international symbols are found on the instruments and throughout
the A643a TOC Analyzer Operator Manual:
High Voltage
Reference Document: ISO 3864, No. B.3.6
Standby
Reference Document: IEC 417–5009

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WARNING
The UV lamp used for oxidation by the Anatel A643a emits ultraviolet radiation and contains
small amounts of mercury vapor. When replacing it, dispose of the expired UV lamp in
accordance with applicable local regulations. Hach Ultra accepts used lamps for proper
disposal. Refer to “Return Procedures” on page 189 for guidelines.
WARNING
The Anatel A643a contains high voltage electronics. Always physically disconnect power from
the instrument before performing maintenance procedures to avoid potential electrostatic
discharge resulting in possible shock or damage to instrument components. Although the
instrument’s electronics and analysis modules are physically separated and the enclosure is
NEMA 12-compliant, components are not completely protected against external conditions.
Do not subject the Anatel A643a to direct water streams or other adverse environmental
elements.
WARNING
The calibration and validation processes employed by the Anatel A643a use chemicals and a
photooxidation technology which produces hazardous waste byproducts. The effluent is
potentially dangerous both personally and environmentally. Analyzer wastes generated during
calibration and validation procedures must be disposed of in accordance with all applicable
local regulations.
WARNING
The A643a TOC Analyzer’s onboard lithium battery presents a potential fire, explosion and
burn hazard. Properly dispose of expired batteriesódo not attempt to incinerate, recharge or
disassemble.
WARNING
The A643a TOC Analyzer’s fittings and sample vessel may become hot during operation if the
sample water is hot, thereby creating a potential burn hazard. Make sure parts and surfaces
are cool to the touch before proceeding with procedures.
WARNING
Use extreme care when installing and removing the Anatel A643a Analyzer’s sample vessel
and vials. Contact with the exposed needle could cause injury.
Earth Ground
Reference Document: IEC 417–5017
Protective Earth Ground
Reference Document: IEC 417–5019

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CAUTION:
When replacing the battery, ensure that the positive (+) indicator on the battery is inserted at
the positive end of battery holder.
CAUTION:
Use the grounded power cord provided and do not clip the ground pin.
Warranty
Hach Ultra warrants that this instrument will be free of defects in materials and workmanship
for a period of one (1) year from the shipping date. If any instrument covered under this
warranty proves defective during this period, Hach Ultra will, at its option, either repair the
defective product without charge for parts and labor, or provide an equivalent replacement in
exchange for the defective product.
To obtain service under this warranty, the customer must notify the nearest Hach Ultra service
support center on or before the expiration of the warranty period and follow their instructions for
return of the defective instrument. The customer is responsible for all costs associated with
packaging and transporting the defective unit to the service support center, and must prepay
all shipping charges. Hach Ultra will pay for return shipping if the shipment is to a location within
the same country as the service support center.
This warranty shall not apply to any defect failure or damage caused by improper use or
maintenance or by inadequate maintenance or care. This warranty shall not apply to damage
resulting from attempts by personnel other than Hach Ultra representatives, or factory-
authorized and trained personnel, to install, repair or service the instrument; to damage
resulting from improper use or connection to incompatible equipment; or to instruments that
have been modified or integrated with other products when the effect of such modification or
integration materially increases the time or difficulty of servicing the instrument.
THIS WARRANTY IS GIVEN BY HACH ULTRA ANALYTICS, INC. WITH RESPECT TO THIS
INSTRUMENT IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR IMPLIED. HACH
ULTRA ANALYTICS, INC. AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR NON-CONTRACTUAL PURPOSE.
HACH ULTRA ANALYTICS, INC.’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE
PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER
FOR BREACH OF THIS WARRANTY. HACH ULTRA ANALYTICS, INC. AND ITS VENDORS
WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL,INCIDENTAL, OR CONSEQUENTIAL
DAMAGES EVEN IF HACH ULTRA ANALYTICS, INC. OR ITS VENDORS HAS BEEN GIVEN
ADVANCED NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Patents
Apparatus and products are manufactured and sold by Hach Ultra Analytics, Inc. under one or
more of the following U.S. patents: 4,626,413; 4,666,860; 4,683,435; 4,868,127; 5,047,212;
5,260,663; 5,275,957; 5,334,940; 5,677,190 and equivalents in other countries where issued.
Purchaser is granted a paid-up, non-exclusive license to practice under these patents for the
useful life of this apparatus or product.

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Revision History
• Edition 1, July 1998, Anatel Corporation
• Edition 2, October 1998, Anatel Corporation
• Edition 3, January 1999, Anatel Corporation
• Edition 4, August 1999, Anatel Corporation
• Edition 5, April 2000, Anatel Corporation
• Edition 6, August 1997, Anatel Corporation
• Edition 7, July 2001, Anatel Corporation
• Edition 8, November 2001, Anatel Corporation
• Edition 9, December 2002, Anatel Corporation
• Edition 10, March 2003, Anatel Corporation
• Edition 11, November 2006, Anatel Corporation
• Edition 12, June 2007, Hach Ultra Analytics, Inc.
Acknowledgements
• Anatel is a registered trademark of Danaher Corporation.

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1 Introduction
The Anatel A643a TOC Analyzer, a recent generation of on-line instrumentation, are designed
to specifically address pharmaceutical industry needs. Building on the proven success of Hach
Ultra’s line of TOC Analyzers, the Anatel A643a–S and Anatel A643a–P Analyzers offer
measurement capabilities which meet the requirements of the United States Pharmacopeia
(USP). Typical Anatel A643a applications include on-line organic contamination detection in
pharmaceutical water systems as well as the convenience of being able to perform TOC
analyses in the laboratory.
The Anatel A643a Analyzer System integrates analytical Sensors with managing Controllers
in a wide range of configurations that afford maximum flexibility to address a wide range of
process requirements. Multiple Anatel A643a Analyzers can be associated with a single
C80 Controller to observe several process points from one location. Alternatively, multiple
Controllers can be networked to display Anatel A643a readings at several locations.
Fig 1-1 : The Anatel A643a–P Portable TOC Analyzer

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1.1 The Anatel A643a TOC Analysis System
The Anatel A643a TOC Analysis System is comprised of the following components:
Anatel A643a–S (Stationary) Analyzer
This permanently mounted instrument is the standard Anatel
A643a analysis device. Its 1-line by 16-character display visually
reports the instrument’s current values. In conjunction with a C80
Controller, it can be networked with other Analyzers to perform
multiple TOC measurements. Or, a single Anatel A643a–S
Analyzer can be linked to as many as eight C80 Controllers to offer
data display and operational control from multiple remote sites.
Anatel A643a–P (Portable) Analyzer
The Anatel A643a–P combines the attributes of the Anatel A643a–
S Analyzer with an integral C80 Controller and 40-column thermal
printer to provide total instrument portability with point-of-use
reporting capabilities. The Anatel A643a–P is designed for
maximum flexibility by furnishing spot TOC measurements in
addition to providing local printouts as the data are reported.
C80 Controller
The C80 Controller is the control/display device for the Anatel
A643a Analyzer. The C80 allows operational and reporting
parameters for as many as eight associated Analyzers to be
programmed independently. Its 4-line by 16-character display
communicates such analysis information as current TOC in ppb,
trend, conductivity (or resistivity), temperature and current
operational mode. The alarm status of each active Analyzer is
reported via a corresponding Channel LED.
Printer
A stand-alone version of the thermal printer that is part of the
Anatel A643a–P Analyzer can be connected to any Anatel A643a–
S to provide local printouts.
Heat Exchanger
The Anatel CX-20 Heat Exchanger reduces the temperature of
sample waters that are over 65 °C to an acceptable level for TOC
analysis. Under most operating conditions, sample water of up to
65 °C can be routed directly to the Anatel A643a for TOC analysis.
For sample water temperatures greater than 65 °C, a heat
exchanger is required for analysis. The CX-20 cools the sample
using a stainless steel tube-fin to provide superior heat transfer
with no possibility for sample contamination.

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Fig 1-2 : A-Net RS-485 Local Area Network
1.2 Anatel A643a Analyzer Features
Anatel A643a TOC Analyzers offer several unique advantages in the monitoring of ultrapure
water systems:
Calibration and
Validation The Anatel A643a Analyzer can be calibrated with from one to three TOC standards using Anatel’s pre-packaged Calibration Standards.
Calibration and instrument performance can be validated on-line using
Anatel’s Validation Kit.
USPCompliancefor
Conductivity and
System Suitability
The Anatel A643a’s limit response and response efficiency are
calculated on-line automatically to determine compliance with USP
TOC Method <643>. Meter accuracy and cell constant also can be
verified on-line to comply with USP Conductivity Method <645>.
Hot Water
Application The Anatel A643a is fully compatible with water temperatures up to 65 °C. For water temperatures from 65 °C to 95 °C, a heat exchanger
is required. The only wetted part in the Anatel Heat Exchanger is 316
stainless steel tubing.

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1.3 Operational Overview
The Anatel A643a Analyzers employ a patented photocatalytic method which measures the
conductivity of the sample before and after its oxidation by ultraviolet (UV) light. The water
sample is isolated from the ambient environment to eliminate external contamination and the
TOC concentration is determined using an algorithmthat measures the change in the sample’s
conductivity. The change in conductivity is a direct function of the amount of organic carbon
present and its oxidation to carbon dioxide (CO2), allowing the TOC content of the sample
water to be calculated.
The results of each sample analysis are digitally displayed on the front panel of the
corresponding Sensor, and its supervisory C80 Controller, as a concentration of TOC in ppb.
Additionally, conductivity (in µS/cm) or resistivity (in MΩ–cm), uncompensated for temperature
or corrected to 25°C, and sample temperature are measured then displayed. A selection of
data printouts is available.
An integral alarm scheme reports any abnormalities detected during Analyzer operation. A
TOC limit (or uncompensated conductivity limit) excursion is automatically output to a printer
and logged for display on associated C80 Controllers.
Anatel A643a Analyzers also perform ongoing TOC trend analyses to facilitate water quality
management. Each instrument measures the change in TOC over the past hour and reports its
directional trend. By further examining the exact TOC values on a printout, the user can
determine if the trend is critical and respond accordingly.
UV Detect™
Technology UV Detect is an optional feature. Analyzers with UV Detect can be identified by a UV Detect label on the analyzer housing and a -UV in the
catalog number. UV Detect provides an additional level of diagnostics
to the Anatel A643a analyzer, by continuously monitoring the level of
the ultraviolet (UV) output by the analyzer lamp. When a marginal level
of UV light or failed output is detected diagnostic messages are
provided from the instrument. This feature ensures the TOC output
value is always representative of a sample oxidized with the proper
level of UV.
Individual Alarm
Monitoring TOC levels may be monitored for all connected Anatel A643a Analyzers and compared to user-defined alarm limits for each
instrument. The user is alerted to any limit excursions by the C80
Controller which flashes its LCD display as well as the Sensor’s
corresponding LED. An audible beep or usersupplied external alarm
may be enabled for additional warning. The Anatel A643a also can be
set to alarm at USP recommended uncompensated conductivity levels.
Local Area
Networking (LAN)
Capability
The ability to link as many as eight Anatel A643a Analyzers to a single
C80 Controller provides timely readings of TOC levels even at the most
distant and crucial areas of the water system. The C80 Controller can
be mounted wherever convenient to make the TOC levels at several
key locations immediately available on a single display. Analog, Digital
I/O, Serial and 12 VDC Bias connections allow quick and easy
connection to any external device to further enhance system
capabilities.

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Fig 1-3 : Anatel A643a–P TOC Analyzer Components

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2 Instrument Installation
2.1 General Information
All models of the Anatel A643a Analyzer are designed to provide a flexible method of
monitoring ultrapure water systems. The basic Anatel A643a–S configuration consists of an
Analyzer and a C80 Controller. These two components are combined with a printer on the
Anatel A643a–P to form a portable analysis system. Additional Analyzers and Controllers can
be integrated to create a local area network (see “Network Installation” on page 39).
This configuration flexibility necessarily affects installation of the Anatel A643a System.
Each Analyzer is furnished with an Installation Kit (Anatel A643a–S: P/N FG2041101; Anatel
A643a–P: P/N FG2041201) and must consider these preparatory and installation issues:
Note that these procedures are common to most, but not all, Anatel A643a components.
The C80 Controller, for example, is built into the portable Anatel A643a–P Analyzer and,
consequently, does not require external communications connections. Conversely, a
Sensor Name cannot be assigned to a stand-alone C80 Controller because it is not integral
to the Anatel A643a–S Analyzer.
Table 2-1 : Preparatory and installation issues
Procedure C80 AnatelA643a–S Anatel A643a–P
Inspection X X X
Verification X X X
System Time X — X
Sensor Name — X X
Mounting X X —
Plumbing — X X
External Communications X X —
Auxiliary I/Os — X X
Power X X X
Self-Cleaning — X X

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2.2 Pre-Installation Procedures
Preliminary setup procedures should be conducted on the Anatel A643a components prior to
installing them on the water system to help assure their proper operation. Verification also is
easier at this stage than when the components have been mounted and cabling has been run.
Suggested pre-installation procedures are:
• Unpacking, visually inspecting the equipment and verifying the packing list.
• Powering up the Analyzer to verify that all the components are operational (refer to
“Specifications and Accessories” on page 191 for the specific power requirements of
each component).
• Setting up the operational software by entering the System Time and naming the
Analyzer.
Note:
The terms “Anatel A643a” and “Analyzer” refer generally to all A643a TOC Analyzer models.
2.2.1 Unpacking & Inspection
Upon receiving the Anatel A643a Analyzer, inspect the shipping container(s) for any signs of
external damage before unpacking the components. Carefully remove the equipment, verify
the enclosed packing list and check once again for obvious damage.
Each Anatel A643a Installation Kit contains:
• Power Cord
• Network “Tee” & Terminator
• 15 Micron Inlet Filter
•5’ 1/4” OD Sample Tubing
• 10’ 1/8” OD Drain Tubing
• 1/4” Tube x 1/4” MNPT Fitting
• Operator Manual and Standard Operating Procedures (SOPs)
If damage is apparent, notify the freight carrier immediately: Claims must be filed by the
customer. Also notify Hach Ultra or your distributor of any such problems. Include the Serial
Number of the damaged unit(s) and your purchase order number with all factory
communications.
2.2.2 Operational Verification
The next pre-installation step is to establish communication connections between the C80
Controller and its associated Anatel A643a–S Analyzer (these connections are internal to the
Anatel A643a–P).
Each Anatel A643a–S Analyzer and C80 Controller is supplied with a 3-foot local cable, a twin
BNC “tee” connector, and a passive terminator. The C80 Controller also includes a 10-foot
trunk cable to facilitate communications connections.
Note:
Additional twin-axial trunk cable, pre-wired with BNC plugs at each end, is available from Hach
Ultra in 10-, 25-, 50-, 100-foot and custom lengths.