YSI 3017M User Manual

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3017M Chlorine Analyzer

DPD CHLORINE ANALYZER

USER MANUAL

332100_Rev A

General Information

The information contained in this manual is subject to change without notice.

Effort has been made to make the information in this manual complete, accurate, and current.

The manufacturer shall not be held responsible for errors or omissions in this manual, or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

No part of this document may be reproduced, photocopied, or translated to another language without the prior written consent of YSI.

Consult YSI.com for the most up-to-date version of this manual.

Warranty

YSI warrants each YSI manufactured product against defects in materials and workmanship under normal use and service for a period of two years. Equipment installed by YSI is warranted from the installation date; all other equipment is warrantied from the ship date. If purchaser schedules or delays installation more than 90 days after delivery, then the warranty period starts on the 91st day from date of shipment. This warranty extends only to the original purchaser. YSI will, at its option, repair or replace equipment that proves to be defective during the warranty period, provided the equipment is returned to YSI at the expense of the purchaser.

Consumables, expendables, and parts are warranted for 30 days and are not covered under extended warranties or service contracts.

YSI warrants for a period of one year from the date of delivery: (i) the software, when installed and used with an YSI recommended hardware conﬁguration, will perform in substantial conformance with the documentation supplied with the software; and (ii) the physical media on which the software is furnished will be free from defects in materials and workmanship under normal use.

This warranty shall not apply to defects originating from, but not limited to, the following:

• Improper maintenance or operation by the purchaser;

• Purchaser-supplied accessories or consumables;

• Modiﬁcation or misuse by the purchaser;

• Operation outside the product’s environmental and electrical speciﬁcations;

• Software, interfacing, parts, or supplies not supplied by YSI;

• Improper or inadequate site preparation;

• Purchaser-induced contamination or leaks.

THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF MERCHANTABILITY, FITNESS, OR ADEQUACY FOR ANY PARTICULAR PURPOSE OR USE. YSI SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT, TORT, OR OTHERWISE.

Any service requests or questions should be directed to the YSI Customer Support Center at (937) 767-7241.

Safety Information

Please read this entire manual before unpacking, installing and operating this instrument. Ensure that the protection provided by the instrument is not impaired. Do not install or use this instrument in any manner other than that speciﬁed in this manual. For operator safety, pay attention to DANGER, WARNING and CAUTION statements throughout the manual.

Safety Hazard Information

DANGER indicates a potentially or imminently hazardous situation which, if not

avoided, will result in serious injury or death.

WARNING indicates a condition or possible situation that could result in physical

injury to the operator.

CAUTION indicates a condition or possible situation that could damage or destroy the product or the operator’s work.

NOTE: Information that is supplemental to the point in the main text.

Follow warnings and precautions in this manual or on the instrument during operation, service and repair. Failure to follow these warnings and precautions violates the safety design standards and intended use of the instrument. YSI is not liable for the operator’s failure to comply with these warnings and precautions.

Precautionary labels

Please read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed.

Electrical equipment marked with this symbol may not be disposed of in the European public disposal systems after 12 August 2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European electrical equipment users must now return old or end-of-life equipment to the Producer for disposal at no charge to the user.

NOTE: For return for recycling, please contact the equipment producer or supplier for instructions on how to return end-of-life equipment, producer-supplied electrical accessories, and all auxiliary items for proper disposal.

TABLE OF CONTENTS

1. General Product Information..........................................4

1.1 Instrument Description...........................................4

1.2 Instrument Speciﬁcations.......................................5

1.3 Method of Analysis..................................................6

1.4 Theory of Operation................................................6

2. Installation...........................................................................7

2.1 Unpack the Analyzer................................................7

2.2 Environmental Considerations..............................7

2.3 Analyzer Mounting..................................................7

2.4 Plumbing Connections.........................................10

2.5 Sample Line...........................................................10

2.6 Sample Inlet Device............................................10

2.7 Optional In-Line Filter.........................................13

2.8 Sample Inlet Devices and Systems......................13

2.9 Electrical Connections........................................13

2.9.1 Power Connections.................................13

2.9.2 Wiring the Analyzer.................................14

2.9.3 RS 485.......................................................15

2.9.4 Analog Output (4-20 mA)......................15

2.9.5 Alarm (Relay) Connections.....................15

2.9.6 AC Connections.......................................16

2.9.7 Reagent Preparation................................16

2.10 Pump Tubes..........................................................17

2.10.1 Sample Pump Tube...............................18

2.10.2 Reagent Pump Tubes............................19

3. Analyzer Startup...............................................................20

3.1 Supply the Sample..............................................20

3.2 Supply Power to the Analyzer............................20

3.3 Language Selection............................................21

3.4 Powerup Mode....................................................21

4. Analyzer Operation..........................................................22

4.1 User Interface.......................................................22

4.2 Display...................................................................23

4.3 Touchpad..............................................................23

4.4 Firmware Structure & Operation.......................23

4.5 Unlocking/Locking the Analyzer.......................32

4.6 Method Settings..................................................33

4.7 Setting the 4-20mA Output...............................33

4.8 Setting the Alarm/Timed Event Relays.............33

4.8.1 Setting Alarm Relays with Keypad........33

4.8.2 Setting Alarm Relays w/ MODBUS........34

THIS IS AN INTERACTIVE ADOBETM PDF DOCUMENT

4.9 Calibration............................................................34

4.9.1 Calibration with Known Standard.........34

4.9.2 Calibration by Comparison....................35

5. Default Conﬁguration & Method Settings..................36

5.1 Method Settings..................................................36

5.1.1 Times.........................................................36

5.1.2 Pumps........................................................37

5.1.3 LEDs..........................................................37

5.2 Setup.....................................................................37

5.2.1 Communications......................................37

5.2.2 4-20 mA Setup.........................................38

5.3 Status......................................................................38

5.4 Linearization.........................................................38

5.5 Maintenance.........................................................38

6. Maintenance......................................................................39

6.1 Regularly Scheduled Maintenance...................39

6.1.1 Reagent Replacement.............................39

6.1.2 Pump & Reagent Tube Replacement....39

6.1.3 Flowcell Cleaning....................................41

6.2 Unscheduled Maintenance................................41

6.2.1 Fuse Replacement...................................41

6.2.2 Linearization.............................................42

6.2.3 Field Linearization Procedure................42

7. Troubleshooting...............................................................45

7.1 Troubleshooting Guide......................................45

7.2 Using Manual Controls & STATUS Screen.......46

7.3 UsingTier 3 Selections & STATUS Screen........47

7.3.1 Main STATUS Screen...............................48

7.3.2 Liquid Level Sensor & Error Levels.......49

7.3.3 Firmware & PCA Revision Levels...........51

8. Parts & Accessories...........................................................52

9. Declaration of Conformity..............................................59

10. Appendix A: MODBUS Manual...................................60

1. General Product Information

1.1 Instrument Description

DANGER Chemical or biological hazards: If this instrument is used to monitor a treatment process and/or chemical feed system for which there are regulatory limits and monitoring requirements related to public health, public safety, food or beverage manufacture or processing, it is the responsibility of the user of this instrument to know and abide by any applicable regulation and to have sufﬁcient and appropriate mechanism in place for compliance with applicable regulations in the event of malfunction of the instrument.

The 3017M Chlorine Analyzer is a microprocessor-controlled process analyzer. It is designed to continuously monitor an aqueous sample for chlorine content. Either free or total chlorine, in the range of 0 – 5 mg/L can be monitored. Indicator and buffer solutions are used for the determination of chlorine content. Speciﬁc buffer solutions are used for free or total chlorine.

WARNING Fire hazard: This analyzer is intended to be used for aqueous samples only.

The 3017M Chlorine Analyzer enclosure is rated for IP 66 per IEC 529. The enclosure is dust tight and drip resistant and is designed for outdoor use. However, a three-sided covering that prevents direct exposure to sunlight, dripping water, rain, sleet, or snow should be used.

The 3017M Chlorine Analyzer is an on-line photometric analyzer that uses N,N-diethyl-p-phenylene diamine (DPD) indicator and a buffer to determine chlorine content. The system has two peristaltic pumps that deliver sample and reagents to the ﬂowcell. The sample pump continually delivers sample to the ﬂowcell. The reagent pump is activated at a predetermined time to deliver buffer and DPD reagent to the sample stream.

The ﬂowcell consists of a sample inlet, reagent inlets, a static mixer and sample drain. Either a green, blue, or red LED can be selected to provide the appropriate wavelength of light. Light is transmitted through ﬁber optic cables through the ﬂowcell and back to a dual-channel detector. One channel is used for the analysis of the colored complex while the other channel is used as a reference to monitor the LED source, and thereby, maintain stability of the system.

The reagents are dispensed from two replaceable bottles. One bottle has a buffer to control the pH; the second bottle has the DPD reagent that produces a magenta color when chlorine is present in the sample. The degree of color change is proportional to the amount of chlorine in the sample water. Chlorine concentration is displayed on the front panel by three-digit LCD readout in mg/L chlorine.

The system accepts commands and sends data over RS-485 using Modbus RTU/ASCII protocols, or through the touchpad, if the instrument is not operated under Modbus control. A 4-20 mA output is available for connection to an external datalogger, Programmable Logic Controller (PLC) or Distributive Control System (DCS). Concentration minimum and maximum values in mg/L chlorine are set by the operator at the analyzer touchpad.

Programmable alarm circuits provide relay closures, both normally open and normally closed, for two selectable chlorine level set points. Set points can be programmed by the operator anywhere in the overall range. System warning and system alarm features provide automatic, self-testing diagnostics that detect a number of possible malfunctions, and provide alarm relay closures indicating a need for operator intervention.

Indicator and buffer reagent containers (500-mL each) are placed in the instrument enclosure. Reagents are replenished once a month when operating in the 0 – 5 mg/L chlorine range. A clear front cover allows for viewing of reagent bottles, and other critical components without the need for opening the analyzer enclosure.

General Product Information

1.2 Instrument Speciﬁcations

Performance

Measurement Method N, N-Diethyl-p-phenylenediamine (DPD)

Measurement Range 0-5 mg/L free or total chlorine, reagent dependent

Measurement Interval Programmable; 2.5 to 60 minutes

Accuracy ±0.03 mg/L or ±5%, whichever is greater

Limit of Detection 0.03 mg/L

Calibration Factory calibrated, 1-point if required

Resolution 0.01 mg/L

General

Display 2.8 x 6 cm backlit LCD

Enclosure IP66 (with door latched)

Instrument Dimensions 17.6 x 14.7 x 7.9 inches (44.6 x 37.3 x 18.8 cm)

Mounting 4 mounting struts bolted to back of unit

Instrument Shipping Weight <18 lbs ; 8 kg

Warranty 2 year warranty

Regulatory Compliance US EPA regulations 40 CFR 141.74 and 40 CFR 136.3; Standard method

4500-CL-G; US EPA method 334.0; ISO method 7393-2

Certiﬁcation CE, cETLus

Language English, French, German, Italian, Spanish

Sample Requirements

Sample Flow Rate to Sample Inlet Device 50 to 1,000 mL/min when using Sample Inlet Device

Inlet pressure 1 to 20 psig with Sample Inlet Device

Sample Temperature Range 41 to 113 °F (5 to 45 °C)

R  R

Reagent Sets 330006 - Reagent set for measuring total chlorine

330007 - Reagent set for measuring free chlorine

Reagent Consumption ~30 days per bottle at a 2.5 minute measurement interval

Reagent Storage Life (before hydration) Buffer and indicator: 5 years

DPD powder: 1 year

Reagent Storage Life (after hydration) ~30-40 days

Power & Communication

Power 115-230 VAC , 50-60 Hz, 70VA

Relays Two relays rated at 6A, 30VDC

Analog Output One 4-20 mA conﬁgurable output

Digital Output RS-485 Modbus RTU

Optical

Light Source Class 1 LED; wavelength centered at 525 nm

Light Path Length >1 cm

Environmental

Storage Temperature Range 41 to 158 °F (5 to 70 °C)

Operating Temperature Range 41 to 131 °F (5 to 55 °C)

Relative Humidity 90% at 40°C non-condensing

General Product Information

1.3 Method of Analysis

Free available chlorine (hypochlorous acid and hypochlorite ions) oxidizes the DPD indicator reagent at a pH between

6.3 and 6.6 to form a magenta-colored compound (Würster dye). The intensity of the resulting color is proportional to the concentration of chlorine in the sample. A buffer solution speciﬁcally for free chlorine maintains the proper pH.

Total available chlorine (free chlorine and combined chloramines) is determined by adding potassium iodide to the reaction. Chloramines in the sample oxidize iodide to iodine, which, along with any free available chlorine, oxidizes DPD indicator to form the magenta color at a pH of 6.5 – 8.5. A different buffer solution containing potassium iodide maintains the reaction pH. After the chemical reaction is complete, the optical absorbance at the selected wavelength is compared to the absorbance measured through the ﬂowcell before the reagents are added. Chlorine concentration is calculated from the difference in absorbance.

1.4 Theory of Operation

The sample continuously ﬂows through the ﬂowcell. Prior to the addition of reagents, the blank absorbance is measured. Measurement of the sample blank allows for compensation for any turbidity or natural color in the sample and provides an automatic zero reference point. Reagents are added after the measurement of the blank sample and develop the magenta color if chlorine is present in the sample. Absorbance is measured and compared to the blank reference value.

Peristaltic pumps control the ﬂow of sample and reagents. The sample ﬂows continuously and the reagent pump delivers a metered amount of buffer and indicator in a 2.5-minute cycle. The cycle operates as follows:

1. The sample is continuously ﬂowing through the ﬂowcell.

2. At a preset time, the absorbance of the blank sample is measured.

3. After the blank absorbance is measured, the indicator and buffer reagents are injected into the ﬂowing stream of sample.

4. The sample and reagents are allowed to thoroughly mix for the full development of the magenta color. The measurement of the treated sample is taken to determine the chlorine content.

5. The sample pump increases the ﬂow rate to thoroughly evacuate the ﬂow cell in preparation for the start of the next cycle.

General Product Information

2. Installation

DANGER Electrocution and ﬁre hazard. Only qualiﬁed personnel should conduct the tasks described in this section of manual.

WARNING Electrocution hazard. Install a 10A circuit breaker for main power. Identify the circuit breaker with a label, as a local disconnect for this equipment.

2.1 Unpack the analyzer

Remove the analyzer from the box and inspect it for damage. Verify that all of the parts are contained in the shipment. If any items are missing or damaged, contact Technical Support, or the local representative.

2.2 Environmental Considerations

The analyzer enclosure is designed for indoor or outdoor installation with an ambient temperature range of 5 – 55 °C (18 – 131 °F). The enclosure environmental rating is IP 66 with the door closed and latched. For outdoor installation, the analyzer should be covered by a three-sided cover to protect it from direct sunlight, dripping water, rain, sleet or snow.

2.3 Analyzer Mounting

The enclosure is designed for wall mounting. Refer to Figures 2.1, 2.2, 2.3 and 2.4 for critical dimensions and other installation information.

The 3017M has four mounting tabs that must be installed on the enclosure refer to Figure 2.2. These mounting tabs can be found in a package of mounting hardware that is included with the enclosure. Connect the mounting tabs to the enclosure using the four (4) #10-32 x 3/8-inch Phillips Drive ﬂat head machine screws found in the mounting hardware kit.

Use ¼-inch screws, or bolts, depending on mounting location/surface. The analyzer should be mounted at a height at which it can be safely operated. Mount the analyzer as close as practical to the sampling point to ensure complete purging of the sample line during each cycle. Leave adequate clearance at the sides and bottom of the analyzer enclosure for wiring and plumbing connections.

The most common installation approach is the use of Unistrut® frame. Unistrut frame with ¼-inch spring nuts would be used for mounting the 3017M. The mounting tabs on the 3017M are designed for ¼-inch bolts.

NOTE: The sample pump in the analyzer pulls sample into the ﬂowcell. The maximum distance between the analyzer and the sample point should not exceed 3.28 ft (1 m).

Installation

14.674”

(37.27 cm)

7.891”

(20.04 cm)

17.582”

(44.66 cm)

Figure 2.1 3017M overall dimensions

16.172”

(41.08 cm)

9.625”

(24.45 cm)

4X .250” MOUNTING HOLE (.635 cm)

Figure 2.2 3017M mounting dimensions showing the mounting tabs connected to the enclosure

Installation

7.361”

(18.70 cm)

2.393”

(6.08 cm)

POWER CONNECTIONS

RELAY/ALARM & NETWORK CONNECTIONS

7.000”

(17.78 cm)

1.736”

(44.08 cm)

5.745”

(14.59 cm)

Figure 2.3 3017M electrical connections

Installation

2.988”

(75.88 cm)

3.475”

(88.26 cm)

Figure 2.4 3017M plumbing connections

2.4 Plumbing Connections

NOTE: The waste line contains analysis waste, which include both sample and chemical reagents. The chemicals used for the analysis are of very low concentrations. Adhere to local codes for the proper disposal of this waste.

Sample inlet and waste connections are made on the bottom of the analyzer. The sample inlet is a quick connect ﬁtting for a 1/8-inch (3.175-mm) OD tubing. The waste line is a barb ﬁtting for ½-inch (12.7-mm) ID ﬂexible tubing. See Figure

2.4. Connect the 1/8-inch (3.175 mm) OD Teﬂon® by pushing it into the ﬁtting. A stop will be felt when the tubing is properly seated in the ﬁtting. Connect the waste line by pushing, and gently twisting, the tubing over the barb on the ﬁtting. Ensure that the tubing completely covers the barb.

NOTE: No pressure, positive or negative, should be applied to the waste line. Never plug the waste line.

CAUTION Fire hazard. This analyzer is intended for water samples only.

2.5 Sample Line

The selection of a representative sample is important for optimal performance of the analyzer and analytical results. The sample must be representative of the condition of the entire process. Erratic reading will be realized if the sample is drawn from a location that is too close to the point of chemical injection, if mixing is incomplete, or if the chemical reaction is incomplete.

Install sample line taps into the side or center of larger process pipes to minimize the chance of ingestion of sediment or air bubbles. A tap projecting into the center of a pipe is an ideal conﬁguration. Opaque tubing is recommended if the tubing is exposed to sunlight in order to prevent algae growth.

2.6 Sample Inlet Device

The Sample Inlet Device, part number 327114, is shown in Figure 2.5. It is a simple, easy-to-use device that serves as the interface between the sample tap and the 3017M. It consists of inlet and outlet ports, a 60-micron ﬁlter for ﬁltration of ﬁne particles, if necessary, and a 20-psig pressure relief valve. The Sample Inlet Device is rated for line pressure in the range of 1 – 20 psig (0.069 to 1.38 bar). It may be necessary to install an in-line pressure regulator, or shut-off valve upstream of the Sample Inlet Device.

These instructions cover the plumbing connections for the Sample Inlet Device, part number 327114. See Figure 2.5. Other sampling schemes can be used with the 3017M. The critical point is that the sample inlet line from the 3017M is always immersed in sample that is representative of the process that is being monitored.

The instrument is designed to require very little head pressure to operate. If the Sample Inlet Device is being used the pressure range is 1 psi (0.069 bar) to 20 psi (1.38 bar). The maximum allowable ﬂuid temperature is 50°C (122°F).

Opaque tubing is recommended if the tubing is exposed to sunlight in order to prevent algae growth. Note that the sample inlet and outlet connectors are compatible with ¼-inch (6.35-mm) O.D. ﬂexible tubing. The outlet port of the Sample Inlet Device has a pressure relief valve that will open if the sample pressure through the device exceeds 20-psi (1.38 bar).

The 1/8-inch (3.175-mm) sample inlet line from the analyzer to the Sample Inlet Device will be connected to sample inlet side of the Sample Inlet Device through a bored-through, Swagelok® ﬁtting with a Teﬂon® ferrule.

Installation

The analyzer has a separate drain for the ﬂow from the sample and reagent pumps onboard the analyzer. The drain tubing is ½-inch (12.7-mm) ﬂexible tubing.

NOTE: The analyzer drain must be open to the atmosphere. No pressure, positive or negative, must be applied to the drain tube.

NOTE: The waste from the drain connection of the instrument contains reagents diluted with large quantities of water. Route the drain line from the analyzer to the appropriate point in accordance with local codes or regulations.

The ideal location for the Sample Inlet Device is below the 3017M and as close as practical to the 1/8-inch (3.175 mm) quick connect ﬁtting at the bottom of the analyzer. The installation location of the Sample Inlet Device should not exceed 3.28 ft. (1 m) from the analyzer. See Figure 2.6.

1/4” NPT to 1/8” TUBE

BRASS FITTING

POLY FILTER 60U

SAMPLE INLET

DEVICE ASSEMBLY

INSERT POLY FILTER ON END

OF 1/8” TUBE TO MIDDLE OF

CLEAR INLET TUBE

1/2” ID URETHANE

TUBING TO DRAIN

1/8” X 1X16” ID TEFLON TUBING

1/2” TO 1/4” PVC REDUCING BUSHING

1/4” TO 1/4” TUBE BRASS FITTING

Installation

1/4” POLY TUBING FROM FLOW PRESSURE REGULATED SAMPLE STREAM TAP

Figure 2.5 Sample Inlet Device (part #327114)

Figure 2.6 Recommended position of the Sample Inlet Device with 3017M

The Sample Inlet Device is supplied with quick connect ﬁttings for ¼-inch (6.35-mm) OD tubing. Other ﬁttings may be substituted depending on the application, but these are not supplied with the device.

Secure the Sample Inlet Device to the wall, panel, or other structure. Push the ¼-inch OD tubing into the inlet ﬁtting. A stop will be felt when the tubing is properly seated in the ﬁtting. Repeat this process for the outlet ﬁtting. Route the outlet tubing to an atmospheric drain, or sump.

Remove the 1/8-inch NPT to 1/8-inch Tube ﬁtting at the top of the Sample Inlet Device. This ﬁtting has Teﬂon® twopiece ferrule. Take care not to lose it, or over-tighten. It can be reused numerous times if not over-tightened.

Insert the sample pick-up line into the ﬁtting and attach the 60 micron ﬁlter to the end of the sample line. Secure the ﬁtting to the Sample Inlet Device. Position the sample pick-up line/ﬁlter at approximately mid-way in the Sample Inlet Device. Gently tighten (do not overtighten) the 1/8-inch nut on the ﬁtting.

Apply sample to the system and check for leaks. Ensure that the sample from the outlet of the Sample Inlet Device is ﬂowing freely to the drain.

Installation

2.7 Optional In-Line Filter

In some applications, the addition of ﬁrst-stage ﬁltration may be necessary before the Sample Inlet Device. A 40-mesh strainer is available, but not included with the analyzer.

The 40-mesh strainer may be installed at any point in the sample line prior to the inlet of the Sample Inlet Device. However, a position in close proximity to the inlet of the Sample Inlet Device is recommended to prevent the build-up of contamination in the sample line after the strainer.

2.8 Optional Sample Inlet Devices and Systems

The 3017M Chlorine Analyzer is not absolutely dependent upon a pressurized stream of water. For instance, a sample may be placed in a container and the sample inlet tube submerged in it. As long as the sample inlet tube shown in Figure 2.6 is submersed in a representative sample, the Sample Pump on the instrument will draw the sample into the instrument. Therefore, any number of different sample devices can be used on the 3017M.

The sample inlet tube may be inserted into a ﬂowing stream of water. As long as the recommended distances from the instrument to the sample point are followed and the sample tube is always fully submersed in water, and steps are taken to prevent clogging, the Sample Pump should draw water into the analyzer.

2.9 Electrical Connections

The cable glands on the left-hand-side of the analyzer will accept cable diameters from 0.23 in (5.8 mm) to 0.53 in (13.5 mm). All terminals are designed to accept wires in the range of 14-28 AWG. All wires should be stripped to a length of 1/4- inch (6.35 mm). Wire ferrules have been found to be particularly useful with the terminal block in the analyzer.

The power and RS 485/4-20 mA connections are made through the cable glands that are supplied with the analyzer. The power and RS 48/4-20 mA cable glands can be found on the left-hand-side of the analyzer. See Figure 2.3.

If alternate cable glands are desired, use sealing-type conduit ﬁttings to maintain IEC 529 IP 66 rating. Alternatively, hard conduit and conduit seals may be used for power and RS 485/4-20 mA connections.

2.9.1 Power Connections

DANGER Electrocution hazard. Only qualiﬁed personnel should conduct the tasks described in this section of the manual. Connect equipment in accordance with national, state and local electrical codes. When working inside of the enclosure power should be disconnected prior

to entry.

Power, signal, relay and alarm connections are made at the terminal block inside the enclosure on the left-hand-side of the analyzer. For industrial applications, the national electrical codes of most countries may require that AC service be hard-wired and contained in rigid conduit systems. The 3017M has been designed to conform to that requirement. Refer to Figure 2.3.

Additionally, electrical and instrumentation standards require a local means of removing power from a device. The

3017M does not have a power on/off switch. However, a fusible link on the terminal block can be used to remove power from the analyzer. An external means of removing power from the analyzer may be necessary.

Installation

External Power Switch (optional)

1 2 3

5 6 7 8

9 10 11 12 13 14 15 16

Figure 2.7 3017M showing terminal block and external power switch

In applications where power cords are allowed by local electrical code and power surges and transients are not a concern, a power cord with three 18 gauge wires can be used. The cable gland on the left-hand-side of the analyzer is compatible with most, standard power AC power cords.

2.9.2 Wiring the Analyzer

DANGER Electrocution hazard. Ensure that the power cord is not connected to outlet, or other power source.

NOTE: The 3017M can accept either 115 VAC or 230 VAC. There is no voltage selector switch.

The 3017M uses WAGO® connectors for power, signal, and alarm connections. See Figure 2.8 and Tables 1 and 2. The individual connector blades are opened by inserting the tip of a narrow, ﬂat-blade screwdriver into the square opening of the connector. Insert the screwdriver tip until it bottoms-out in the connector. Insert the stripped wire and remove the screwdriver. Gently pull on the wire to ensure that the blades of the connector have secured the wire.

Installation

Position Connection/Purpose Wire Color

1 AC Earth Green/Green Yellow

2 AC Neutral (Line 2) White/Blue

3 AC Line (Line 1) Black/Brown

4 Fusible Link (0.5A) Brown

5 RS 485-A White

6 RS 485-B Grey

7 RS 485 RTN Purple

8 4-20 mA (+) Blue

9 4-20 mA (-) Green

10 ALARM 1 (NC) Yellow

11 ALARM 1 (COM) Orange

12 ALARM 1 (NO) Red

13 ALARM 2 (NC) Brown

14 ALARM 2 (COM) Black

15 ALARM 2 (NO) Pink

16 SPARE

Figure 2.8 3017M terminal block

Table 1 Position and purpose for each

wire on the 3017M terminal block

2.9.3 RS 485

The RS-485 full-duplex (3-wire) digital interface operates with differential levels that are not susceptible to electrical interferences. This is why cable lengths up to 3,000 ft. can be implemented. The last device on each bus may require terminating with a 120 ohm resistor to eliminate signal reﬂection on the line. Do not run RS-485 cables in the same conduit as mains power. Reference Appendix A: MODBUS Manual.

2.9.4 Analog Output (4-20 mA)

The 4-20 mA output is driven by a 12 VDC power source or may be driven by an external power source by changing the jumper position on the Main Control PCA. The 4-20 mA output will drive loads from 0 to 600 Ohms. Transformer isolation is provided on the analyzer. Do not run 4-20 mA cables in the same conduit as mains power.

2.9.5 Alarm (Relay) Connections

CAUTION Fire hazard. Current to the relay contacts must be limited to 6A resistive. A method to remove power from the relays locally must be available in case of an emergency or for servicing the analyzer.

The analyzer has two potential-free, single pole-double throw Alarm Relays. The relays are rated at 30 V, 6A. The Alarm connections are labeled Normally Open (NO), Normally Closed (NC) and Common (C). The alarm is conﬁgured failsafe; the normal condition is with power applied to the analyzer and in a non-alarm condition.

Installation

2.9.6 AC Connections (if applicable)

Connect the unpowered, AC power wires to the terminal block as follows:

1. If using a power cord, strip the outer sheath back 4 inches. Strip each individual wire back 1/4 inch (6.35 mm). If using individual wires, strip each wire back 1/4 inch.

2. Remove the nut from the cable gland and route the power cord through the nut and cable gland into the enclosure.

3. Pull the power cord back so that the end of the sheath aligns with the inside edge of the cable gland in the enclosure. This ensures that the nut will tighten on the sheath and seal the connection.

4. Connect the three wires to the proper connector using the information in Table 1, Table 2 and Figure 2.8.

Regional Wire Color Earth Ground Line 1 (Hot) Line 2 (Neutral)

North America Green Black White

IEC Green with yellow tracer Brown Blue

Table 2 Main Power Terminal Wiring

2.9.7 Reagent Preparation

The 3017M requires two reagents; a buffer solution and an indicator solution that contains the DPD powder. These reagents must be mixed and installed in the analyzer enclosure. The buffer and indicator solutions are mixed in 500-mL bottles that can be found in either: KIT-FREE CHLORINE, part number 330007, or KIT-TOTAL CHLORINE, part number

330006. Each kit will contain the items below. The containers in the respective kits are clearly marked. The buffer and indicator bottles are installed on the right-hand side of the analyzer enclosure with the BUFFER in the farthest, righthand position closes to the right side of the enclosure.

1. Diphenylenediamine (DPD) reagent in a small amber glass bottle

2. The 500 mL buffer reagent pre-charged with dry powder and a ﬁll line

3. The 500 mL indicator reagent pre-charged with dry powder and a ﬁll line

4. Instructions for use

NOTE: 1 liter of deionized water (not included) is needed to prepare the reagents. If deionized water is not available, then use water that is known to be chlorine free. If necessary, test this water with a handheld meter, or other laboratory test to verify that the water is free of chlorine.

CAUTION The DPD powder must be mixed in the indicator container.

Installation

Preparing the reagents

1. First prepare the buffer by adding approximately half of the required DI water to the buffer bottle, capping the bottle, and shaking vigorously until the dry powder inside has completely dissolved.

2. Once solids are no longer visible, carefully ﬁll the bottle to the ﬁll line, recap it, and mix it again by shaking vigorously for approximately 1 minute. Then let stand until the bubbles clear. The buffer is ready for use.

WARNING Indicator reagent is corrosive. handle with care.

3. Carefully add approximately 1/3 of the required water to the indicator reagent bottle, cap the bottle securely, and mix it by shaking for approximately 1 to 2 minutes. It is likely there will still be solid material in the bottle. Add a second one-third of the required water and mix again for 1 to 2 minutes. There should be little-to-no solid material left in the bottle. If necessary, mix for an additional 1 to 2 minutes, or until all solid material is in the solution.

4. Transfer the contents of the DPD (brown glass) bottle into the indicator reagent bottle, minimizing the amount of material left in the brown bottle. Cap securely and shake the indicator bottle, at which time the color should begin to darken slightly.

5. Carefully add the ﬁnal amount of water to reach the ﬁll line of the indicator reagent bottle, cap securely and mix again, then let stand until bubbles clear. The indicator reagent is ready for use.

6. After mixing, the reagents have a shelf life of 30 days at room temperature and 90 days refrigerated at 77° F (25° C).

Installing the reagents

1. Replace the plain bottle cap with the buffer reagent bottle cap (with siphon tube and barbed ﬁtting) and place the prepared, colorless buffer in the right bottle bay of the 3017M.

2. Replace the plain bottle cap with the indicator reagent bottle cap (with siphon tube and barbed ﬁtting) and place the prepared, slightly-colored indicator in the left bottle bay of the 3017M.

3. Carefully connect the pump tubing from the rear reagent pump cassette to the barb on the indicator reagent bottle and do the same for the front cassette tube with the buffer bottle.

4. Replace the bottle retaining plate to secure the bottles.

2.10 Pump Tubes

WARNING Pinch Point Hazard – While pumps are running it may be possible to become entangled in them while they rotate. Operators should not attempt to replace tubing while the pumps are in operation.

WARNING Leak Hazard – A leak detector is advised to be installed into the analyzer to ensure any leaks will be noticed before causing damage to the analyzer. All barbed connections should utilize cable ties in order to protect from disconnection.

Installation

2.10.1 Sample Pump Tube

The analyzer is shipped with the sample pump tube and the reagent pump tubes in place. However, the sample pump tube must be installed on the sample pump rollers.

1. Refer to Figure 2.9.

2. Remove the cover from the sample pump by placing your ﬁnger under the bottom of the cover and gently pulling outward. Take care to not allow the pump roller to fall out of the assembly.

3. A small package of silicone lubricant, part #331121, will be located on top of the rollers. This will be used to lubricate the sample pump tube before assembly.

4. Locate the package of silicone lubricant and cut a small opening across one corner of the package.

5. Apply a thin layer of the silicone lubricant to the section of the tube that will mount on the roller in the pump. A small bead of approximately 3-mm in diameter should be sufﬁcient. Spread the lubricant along the section of the tube that will contact the pump tube rollers. Do not apply the lubricant in excess. There is sufﬁcient lubricant in the startup kit for multiple pump tube installations. Remove any excess.

6. Hold the pump tube over the roller, and gently push the roller onto the drive shaft of the pump motor. Your ﬁngers should be all that is necessary to insert the sample pump tube onto the rollers of the pump. Do not use

any type of sharp tool to position the tube. Damage may result.

7. Position the tube so that it connects so that the barb ﬁtting connections on each end are as even as possible. Adjust the tube by gently moving back and forth on the rollers.

8. Install the cover.

Figure 2.9 Installation of the sample pump tube

Installation

2.10.2 Reagent Pump Tubes

1. The reagent pump tubes are installed in the proper position in the reagent pump. They were connected to the ﬂowcell at the factory. During the preparation of the reagents, the other ends of the pump tubes were connected to their respective reagents..

2. Tension the platens by pushing down on the tensioners. The tensioners will make an audible “click”. Typically, three “clicks” is sufﬁcient tension on the pump tube. Do not overtighten as this may result in premature failure of the tubes.

3. See Figure 2.10.

4. Installation complete.

Installation

Figure 2.10 Complete reagent tube installation and platen tube tensioning

3. Analyzer Startup

3.1 Supply the Sample

NOTE: Double-check all ﬁttings to ensure security before applying pressure to the Sample Inlet Device (if used).

Start the sample ﬂowing through the device to which the sample line from the analyzer is attached, or inserted. If this is the Sample Inlet Device, part #327114, adjust the pressure/ﬂow so that liquid is ﬂowing through the device. Nominally, the ﬂow rate will be in the range of 500 – 1,000 ml/min.

It is not absolutely necessary to have process sample available to start the instrument. If process sample is not available, the sample line from the analyzer may be inserted into a container of water. Fill a container with water that contains some known level of chlorine. This could be checked prior to startup with a handheld meter. Position the container in a convenient location under, or near, the analyzer and insert the sample line into the container.

3.2 Supply Power to the Analyzer

Ensure that the fusible link on the terminal block is open. If an external power switch is installed, close it at this time. Once power is available, close the fusible link. The instrument will proceed to the analyzer self-check and come to the STARTUP mode as shown below. See Figure 3.1.

The analyzer will be in a LOCKED state. This means that the user will only have access to the commands in Tier 1 of the ﬁrmware. For more information on these commands, and the procedure to UNLOCK the analyzer, refer to Section 4.7.

BACK

ENTER

Chlorine 3017M Chlorine 0.00 mg/L STATUS: STARTUP

STATUS: STARTUP

Figure 3.1 3017M STARTUP screen

Analyzer Startup

3.3 Language Selection

English is the default language. Spanish, French, German and Italian are available. If one of these languages is desired, take the following steps.

From the touchpad, select MENU > SETUP > LANGUAGE. Use the UP/DOWN arrows to select the language of your choice. Use the BACK arrow to exit from this menu. All of the text should now be in the language of your choice.

3.4 POWERUP Mode

The default POWERUP mode is STARTUP. The POWERUP MODE is user-selectable; refer to Section 4.5. Every time the power is cycled on the analyzer, the STARTUP sequence will occur. There are other options for the POWERUP MODE. These are: STANDBY and SHUTDOWN.

In STANDBY, when power is applied, the analyzer will come to the STANDBY mode. The sample and reagent pumps will occasionally rotate to prevent the tubes from taking a set due to prolonged periods of idleness.

In SHUTDOWN, when power is applied, the analyzer will come to the SHUTDOWN mode. Power will remain ON; however, the sample and reagent pumps will not periodically turn.

The STARTUP state consists of the following sequence of events. Each event, or state, will be displayed on the screen.

• PRIME: The sample and reagent pumps will turn at a high speed to prime the lines with liquid.

• RINSE: The reagent pump will stop, and the sample pump will continue to turn and rinse the ﬂowcell with sample.

• RUN: The sample pump will return to the speed for normal operation.

• SET AUTOGAIN: The zero point, sample without reagent, is determined.

• INJECT REAGENT: The reagent pump will start and run for the predetermined amount of time.

• INTEGRATE: The analyzer measures the absorption of light that corresponds to the concentration of the sample

ﬂowing through the ﬂowcell.

• CALCULATE VALUE: The concentration of the sample is calculated against the calibration curve stored on

the analyzer.

• DISPLAY VALUE: The concentration of the sample is displayed on the screen.

Observe the outlet of the ﬂowcell. As liquid start to ﬁll the tubes, air will be displaced in the tubes. Since there should be chlorine in the sample, the waste from the ﬂowcell will turn a magenta color during the PRIME state.

Two, or three, cycles may be necessary to obtain a stable reading. If bubbles persist after several cycles, ensure all tubes are submersed in liquid, and check all ﬁttings for tightness. The analyzer will continue to measure the sample in the normal operation until a new command is entered, such as, STANDBY. STANDBY state is the preferred state if the analyzer is not actively monitoring a sample stream.

If normal operation is not desired at this point in time, select: MENU > STANDBY and place the instrument in the STANDBY mode.

After the analyzer is set up to run, the cover should be secured using the 8-32 screws that are included with the mounting hardware in order to prevent unauthorized access to the analyzer by untrained personnel.

Analyzer Startup

4. Analyzer Operation

4.1 User Interface

NOTE: Double-check all ﬁttings to ensure security before applying pressure to the Sample Inlet Device (if used).

Start the sample ﬂowing through the device to which the sample line from the analyzer is attached, or inserted. If this is the Sample Inlet Device, part number 327114, adjust the pressure/ﬂow so that liquid is ﬂowing through the device. Nominally, the ﬂow rate will be in the range of 500 – 1,000 ml/min.

BACK

ENTER

Figure 4.1 3017M HOME Screen

As noted in Section 3, the analyzer is typically left in the STANDBY mode unless (1) it is actively monitoring chlorine level in the sample stream, or (2) some other function has been purposely chosen from the list of available functions.

See Figure 4.1.

1 Display Screen:

Display area for chlorine concentration, status, and menu information.

Chlorine 3017M

Chlorine 0.00 mg/L

STATUS: STANDBY

LOCKED

Back Arrow:

setting from another section of the ﬁrmware is changed, pressing the BACK button will save that setting.

3 Up Arrow:

4 Down Arrow:

Enter Arrow:

menu option.

Menu Line:

UNLOCKED status.

7 Status Line:

The BACK button is used to step back out of a given Tier and ultimately to the HOME screen. If a

Used to scroll through menu options or edit parameters/settings.

Accepts an edited value but does not save it, moves deeper into the menu structure, or accepts a

Allows access to commands within each Tier of the ﬁrmware. Displays local mode and LOCKED and

Provides real-time status of the analyzer during normal and manual operation.

Table 1 Analyzer keypad and display list functions

Analyzer Operation

4.2 Display

The unit has a four-line display and the ﬁrmware can be navigated by use of the directional keypad at the left of the display. Figure 4.1 shows the HOME screen and Table 1 lists the function of each key and area of the display. This is the desired screen during normal operation. The upper row is used for reporting chlorine levels. The next row indicates the status of the analyzer and the bottom row is divided into two parts. MENU provides access to the next Tier of commands.

4.3 Touchpad

The touchpad has four buttons that are used to navigate through the various tiers of ﬁrmware commands and other selections. UP/DOWN buttons move through the possible selections within each tier. A blinking cursor will appear to indicate which command, or selection, is available when the ENTER button is pushed. The BACK button is used to step back out of a given Tier and ultimately to the HOME screen. The HOME screen is shown in Figure 4.1.

4.4 Description of Firmware Structure and Operation

The ﬁrmware on the 3017M has a tier structure with tier 1 as the upper-most level. Commands in tier 1 are routinely used in the operation of the analyzer. Settings in tier 2, and higher tiers, are used to conﬁgure the analyzer. Refer to the tables below for a brief description of each command or setting. Refer to the appropriate section of this manual for default settings, and procedures for making changes to other settings.

Navigating the ﬁrmware is done by use of the four directional arrow keys. Generally, up and down navigate the menus, right conﬁrms a selection, and left exits a menu.

Tier 1 Selections

MENU is the area of the ﬁrmware where method parameters and hardware settings are adjusted. Pressing MENU, when

the cursor is present on MENU, moves to the next Tier of commands.

SHUTDOWN is the command that will stop the motion of the peristaltic pumps and prepare the analyzer for storage or shipping.

STANDBY is the command that will place the analyzer in a best-practice ofﬂine mode that maintains the peristaltic pump tubing by infrequent rotation of the sample and reagent pump motors.

STARTUP is the command that adjusts gains and applies a fresh calibration, primes the sample and reagent lines, rinses the system, and begins to RUN samples. It is most useful when ﬁrst powering up the unit or after recalibration.

PRIME is the command that turns both the sample pump and reagent pump at a higher-than-normal rate of speed to prime the sample pathway and clear bubbles.

RUN is the command that starts the analyzer collecting data automatically using current method parameters.

CALIBRATE is the command state that allows the analyzer to be calibrated in the ﬁeld using a secondary standard.

RINSE is the command state that ﬂushes sample from the unit in preparation for storage or shipment, or for any

purpose when it is necessary to ﬂush the ﬂowcell with sample.

Analyzer Operation

Tier 2 Selections - MENU

METHOD is the area of the menu that allows for method parameters to be adjusted. Default method settings are ideal for

almost all applications.

SETUP is the area of the menu where communications details and other non-method parameters are set.

STATUS is the command that displays current analyzer status in several areas.

LINEARIZATION is the area of the menu where the unit calibration and linearization commands and parameters are

located.

MAINTENANCE is the area of the menu where the maintenance commands are located. This is also where you will access ENGINEERING ACCESS to unlock the analyzer.

Tier 2 Selections - LINEARIZATION

CALIBRATION STANDARD sets the nominal concentration of the calibration standard in parts-per-million (mg/L) chlorine.

CALIBRATION GAIN is the gain used for ﬁeld calibrations, if needed; editing is not recommended.

LINEARIZATION A-COEF is for informational use and troubleshooting; not altered in normal use.

LINEARIZATION B-COEF is for informational use and troubleshooting; not altered in normal use.

LINEARIZATION C-COEF is for informational use and troubleshooting; not altered in normal use.

LINEARIZATION STANDARD LO is the low calibration standard used for linearization.

LINEARIZATION STANDARD MED is the medium standard used for linearization.

LINEARIZATION STANDARD HI is the high standard used for linearization.

LINEARIZATION TASK opens a list of four tasks that allow for ﬁeld linearization by capturing the absorbance of the

LO, MED, and HI standards and linearizing with those values. Not recommended for normal use.

Analyzer Operation

Tier 2 Selections - MAINTENANCE

CLEAR ALARMS & TIMER clears any alarms that are present. This includes the reagent lifetime alarm.

ENGINEERING ACCESS unlocks the analyzer for modiﬁcation from the keypad. The user must scroll up/down till the

passcode = 19. To lock the unit to prevent modiﬁcation the passcode must be set to any number other than “19”. When the system is locked, the only functions allowed to be modiﬁed from the keypad are RUN MODE and CLEAR ALARMS & TIMER.

ALARMS - When the system is locked a notiﬁcation on the home page indicates “LOCKED”. The system is LOCKED on power-up.

SET REAGENT LIFETIME - Enter the time at which an alarm will be displayed that indicates the lifetime of the reagents has expired. The minimum time is 20 days. The maximum time is 99 days.

TOGGLE SAMPLE PUMP is a command that toggles the state of the sample pump from off to on or vice versa.

TOGGLE REAGENT PUMP is a command that toggles the state of the reagent pump from off to on or vice versa.

TOGGLE ALARM1 is a command that toggles the state of relay 1 from off to on or vice versa.

TOGGLE ALARM2 is a command that toggles the state of relay 1 from off to on or vice versa.

TOGGLE THERMAL DRIVE is a command that toggles the state of the thermoelectric cooler device between ON and

OFF. The external heat sink fan is not affected.

Tier 3 Selections - STATUS: For troubleshooting (no adjustments)

Refrnc VDC - The instantaneous voltage seen at the A/D convertor from the reference channel.

Sample VDC - The instantaneous voltage seen at the A/D convertor from the sample channel.

Ref - The gain setting for the reference channel. (1) is the lowest setting and (8) is the highest setting. The number to the

right of the gain setting can be used to monitor the gain change.

Sam - The gain setting for the sample channel. (1) is the lowest setting and (8) is the highest setting. The number to the right of the Gain Setting and can be used to monitor the gain change.

L - The low linearization sample and its absorbance.

H - The high linearization sample and its absorbance

M - The medium linearization sample and its absorbance

C - The calibration sample and its absorbance

Liquid Lvl Sensor - The liquid level sensor status: 1 is tripped, 0 is not tripped

Analyzer Operation

Tier 3 Selections - STATUS: For troubleshooting (no adjustments), cont’d

Error - The error status: 1 is showing an error ﬂag, 0 is not showing an error ﬂag

Firmware - The two-letter code is the ﬁrmware revision, ex. DZ.

PCA - The PCA revision level.

Compiled - The compile date of the ﬁrmware.

Tier 3 Selections - METHOD

TIMES is the section of the method where the durations of the various analysis method states are set.

PUMPS is the section of the method where the pump speeds are set.

RELAYS - Conﬁgure Alarm/Relays 1 and 2.

LEDS is the section of the method where the power of the light source is set.

METHOD SAVE RESTORE is the area of the ﬁrmware where update method parameters are saved and re-loaded.

Default parameters for the 3017M mode can be selected.

Tier 3 Selections - TIMES (See graphic in Figure 4.2 for more clarity.)

RUN TIME is the total cycle time for the chlorine analysis.

INJ TIME sets the time that the reagent pumps turn to inject buffer and indicator reagent during a RUN.

INTEGRATE START sets the time when the detector response begins to be integrated for calculation of peak area.

INTEGRATE STOP sets the time when the detector response is no longer integrated for calculation of peak area.

STBY RUN TIME sets the running time for the reagent pump when the analyzer is in the STANDBY mode. The sample

pump will automatically run for (1) minute after the reagent pump stops.

STBY WAIT TIME sets the interval between pump maintenance turns while the analyzer is in STANDBY mode. See Figure 4.3 for more clarity. The waiting time is set at a ﬁxed 30 minutes, and the running time is typically set at 8 seconds.

RINSE TIME - This is the time that the sample pump will run during the STARTUP sequence. The RINSE occurs after PRIME during the STARTUP sequence.

PRIME TIME - This is the length of time that the sample and reagent pumps will run during the STARTUP sequence.

Analyzer Operation

Figure 4.2 A depiction of the state timing for the chlorine measurement

Tier 3 Selections - TIMES (See graphic in Figure 5.2 for more clarity.)

Figure 4.3 A depiction of the sample and reagent pump activity during the STANDBY state

Analyzer Operation

Tier 3 Selections - PUMPS

SAMPLE FLO RUN sets the percentage of maximum ﬂow that the sample pump will turn during the RUN state.

SAMPLE FLO PRI sets the percentage of maximum ﬂow that the sample pump will turn during the PRIME state.

SAMPLE FLO STBY sets the percentage of maximum ﬂow that the sample pump will turn during the STANDBY state.

SAMPLE FLO RINSE sets the percentage of maximum ﬂow that the sample pump will turn during the RINSE state.

REAG FLO RUN sets the percentage of maximum ﬂow that the reagent pump will turn during the RUN state.

REAG FLO PRI sets the percentage of maximum ﬂow that the reagent pump will turn during the PRIME state.

REAG FLO STBY sets the percentage of maximum ﬂow that the reagent pump will turn during the STANDBY state.

REAG FLO RINSE sets the percentage of maximum ﬂow that the reagent pump will turn during the RINSE state.

Tier 3 Selections - RELAYS

RELAY 1 TYPE - The following entries are available: (0) operates as a timed relay with setpoints entered in RELAY 1 TIME

ON and OFF; (1) alarms when chlorine level is below setpoint that is set in RELAY 1 SETPOINT; (2) alarms when chlorine level is above setpoint that is set in RELAY 1 SETPOINT, and (3) operates as a system alarm when an ERROR ﬂag is set (see MODBUS map).

RELAY 1 SETPOINT - Chlorine concentration level for either low chlorine level, RELAY 1 MODE (1), or high chlorine level RELAY 1 MODE (2).

RELAY 1 ON TIME - The time in the analysis cycle at which RELAY 1 will close when RELAY 1 MODE (0) is set in RELAY 1 MODE.

RELAY 1 OFF TIME - The time in the analysis cycle at which the RELAY 1 will open when RELAY 1 MODE (0) is set in RELAY 1 MODE.

RELAY 2 MODE - The following entries are available: (0) operates as a timed relay with setpoints entered in RELAY 2 TIME ON and OFF; (1) alarms when chlorine level is below setpoint that is set in RELAY 2 SETPOINT; (2) alarms when chlorine level is above setpoint that is set in RELAY 2 SETPOINT, and (3) operates when an ERROR ﬂag is set (see MODBUS map).

RELAY 2 SETPOINT - Chlorine concentration level for either low chlorine level, RELAY 2 MODE (1), or high chlorine level RELAY 2 MODE (2).

RELAY 2 ON TIME - The time in the analysis cycle at which the RELAY 2 will close when RELAY MODE (0) is set in RELAY 2 MODE.

RELAY 2 OFF TIME - The time in the analysis cycle at which the RELAY 1 will open when RELAY MODE (0) is set in RELAY 2 MODE.

Analyzer Operation

Tier 3 Selections - LEDS

GREEN LED POWER % sets the percentage of maximum power that the green LED will be driven.

BLUE LED POWER % sets the percentage of maximum power that the blue LED will be driven.

RED LED POWER % sets the percentage of maximum power that the red LED will be driven.

Tier 3 Selections - METHOD SAVE RESTORE

SAVE CURRENT METHOD saves updates to method parameters to be applied as the current method.

RESTORE SAVED METHOD restores method parameters to the existing saved method. There is only one active method

on the analyzer at a time

RESTORE DEFAULT 3017M METHOD restores the method parameters to the factory defaults for operation of the instrument as a municipal chlorine analyzer and erases the previous method.

Tier 3 Selections - SETUP

COMMUNICATIONS is the area of setup that sets whether the analyzer is set for MODBUS or LOCAL control, sets the

Modbus address and baud rate and toggles between ASCII Modbus and Modbus RTU.

4-20 SETUP is the area of setup that sets the DAC counts for the 4 and 20 mA levels, sets the concentration limits for the output of the 4-20 mA signal, and allows for a test of the output current.

A/D GAIN is the area of setup that allows the reference and sample gain at the analog-to-digital converter to be set, as well as an instant autogain to be determined and applied.

LANGUAGE Choose between English, Spanish, French, Italian and German for all text.

POWERUP MODE This selection allows the choice of STARTUP, STANDBY or SHUTDOWN as the default condition upon

the application of power to the analyzer.

DISPLAY MODE Choose between the following for display of the results; PPM 2 signiﬁcant ﬁgures, mg/L 2 signiﬁcant ﬁgures or PPM 3 signiﬁcant ﬁgures.

LINEARIZATION MODE Choose between either a linear or 2nd order curve ﬁtting routine for the linearization of the instrument.

Analyzer Operation

Tier 3 Selections - COMMUNICATIONS

BAUD RATE sets the baud rate that the analyzer will use for communications.

MODBUS ADDRESS sets the Modbus address of the analyzer for use in Modbus communication.

ASCII/RTU MODE toggles from ASCII communications to RTU and back. The current setting is indicated.

MODBUS LOCKOUT chooses between MODBUS IS AVAILABLE or UNDER LOCAL CONTROL. This “Modbus Lockout”

function restricts the Modbus host from modifying any registers. The host is still able to read all registers. If the host tries to access a write function, the analyzer will issue a “BUSY” Modbus exception. The status of the lockout may be read as ALARM4 bit 15 as well as the display of “LocalMode” on the LCD home screen.

Tier 3 Selections - 4-20 SETUP

DAC Counts for 4mA sets the DAC counts that correspond to a 4-mA signal.

DAC Counts for 20mA sets the DAC counts that correspond to a 20-mA signal.

4 MA EQUIVALENCE sets the mg/L equivalence for the 4mA signal. For example, if 4 mA= 1.00 mg/L, the sample

concentration will be 1 mg/L when the 4-20 mA system is delivering 4 mA.

20 MA EQUIVALENCE sets the mg/L equivalence for the 20 mA signal. For example, if 20 mA is set to 5 mg/L, the sample concentration will be 5 mg/L when the 4-20 mA system is delivering 20 mA.

MID-RANGE TEST is a command that outputs a ﬁxed current at half of full scale for troubleshooting purposes. For example, if the 4 mA-mg/L value is set to 0 mg/L and the 20 mA value is set to 5 mg/L, pressing this control will force the display, Modbus output and 4-20 mA signal all to 2.5 mg/L.

Tier 3 Selections - A/D GAIN

A/D GAIN CH0 The analog-to-digital (A/D) converter has a variable gain ampliﬁer stage at the input. The gain ranges

from 1X to 128X by powers of 2. A/D GAIN CH0 is the amount of ampliﬁcation applied to channel 0, the sample photometric detector.

A/D GAIN CH1 The analog-to-digital (A/D) converter has a variable gain ampliﬁer stage at the input. The gain ranges from 1X to 128X by powers of 2. A/D GAIN CH1 is the amount of ampliﬁcation applied to channel 1, the reference photometric detector.

USE A/D AUTOGAIN Since the photometric detection process measures the decrease in light through the photocell as the target analyte is being measured, it is advantageous to have the photocell at close to a full-scale reading when no analyte is present for the greatest sensitivity. The USE A/D AUTOGAIN setting automatically sets the gain on the photocells to ensure maximum gain within the range of the ampliﬁers. 1 = ON; 0 = OFF. It is recommended that this setting always be ON.

INSTANT A/D AUTOGAIN This task runs the auto gain routine. If USE A/D AUTOGAIN is on, this routine is run at analyzer startup.

Analyzer Operation

Tier 3 Selections - LANGUAGE

ENGLISH All text in English.

SPANISH All text in Spanish.

FRENCH All text in French.

GERMAN All text in German.

ITALIAN All text in Italian.

Tier 3 Selections - POWERUP MODE

SHUTDOWN Upon application of power, the analyzer will proceed to the SHUTDOWN mode.

STANDBY Upon application of power, the analyzer will proceed to the STANDBY mode.

STARTUP Upon application of power, the analyzer will proceed to the STARTUP mode and begin to analyze the sample

stream, or sample, to which the sample line is connected.

Tier 3 Selections - SELECT DISPLAY MODE

ppm 2 Decimals Displays the result as parts-per-million (ppm) with two signiﬁcant ﬁgures after the decimal point.

mg/L 2 Decimals Displays the result as milligrams per Liter (mg/L) with two signiﬁcant ﬁgures after the decimal point.

ppm 3 Decimals Displays the result as parts-per-million (ppm) with three signiﬁcant ﬁgures after the decimal point.

Tier 3 Selections - LINEARIZATION MODE

LINEAR Applies a linear curve ﬁt to the calibration regardless of mode of operation. The default setting for 3017M is

2-ORDER.

POLY-2 Applies a 2nd Order curve ﬁt to the calibration regardless of mode of operation. The default setting for 3017M is POLY-2 (2-ORDER).

Analyzer Operation

Tier 3 Selections - LINEARIZATION

LINEARIZATION TASK Locks the absorbance readings for the determination of the LOW, MED, and HI coefﬁcients for

either a linear or 2nd order curve ﬁt. Once the absorbance readings are determined, depressing RELINEARIZE will lock these absorbance readings and determine coefﬁcients.

Tier 3 Selections - LINEARIZATION TASK

LOCK LO - This task captures the absorbance for the low linearization standard for use later in linear or 2nd order

curve ﬁtting.

LOCK MED - This task captures the absorbance for the medium linearization standard for use later in linear or 2nd order curve ﬁtting.

LOCK HI - This task captures the absorbance for the high linearization standard for use later in linear or 2nd order curve ﬁtting.

RELINEARIZE - This task determines the linearization coefﬁcients based on data previously captured using the above three commands for either a linear or 2nd order curve ﬁt, and locks those coefﬁcients.

4.5 Unlocking/Locking the Analyzer

Adjustment to the following analyzer settings in Sections 4.6, 4.7 and 4.8 requires unlocking the analyzer. ENGINEERING ACCESS unlocks the analyzer for modiﬁcation of settings from the keypad. When the system is locked, the only functions that can be accessed from the keypad are Tier 1 options.

ENGINEERING ACCESS is a Tier 2 option. Navigate by selecting MENU > MAINTENANCE > ENGINEERING ACCESS. Use the UP/DOWN buttons to enter the Passcode: 19. Use the BACK button to save and exit from this level. The display should appear as shown in Figure 4.4.

After all of the settings have been modiﬁed, navigate back to ENGINEERING ACCESS. Use the UP/DOWN buttons to enter any value for the Passcode other than 19. Use the BACK button to save and exit from this level.

BACK

Chlorine 3017M

Chlorine 0.00 mg/L

STATUS: SHUTDOWN

ENTER

Figure 4.4 3017M display showing analyzer in unlocked condition

Analyzer Operation

4.6 Method Settings

Section 5 provides a detailed description of the default method settings in the 3017M ﬁrmware. The 3017M is tested and shipped with default settings for the various states. These default settings are appropriate for most applications. However, if a setting is changed, this changed must be saved to the new method. Select: MENU > METHOD > METHOD SAVE RESTORE > SAVE CURRENT METHOD. If this step is not taken, the changes to the method will be lost at the next power cycle.

NOTE: If for any reason, you are unsure as to what may have, or have not, been changed and you wish to start the process over from the default settings, select: MENU > METHOD > METHOD SAVE RESTORE > DEFAULT

METHOD 3017.

4.7 Setting the 4-20 mA Output

Navigate as follows: MENU > SETUP > 4-20 SETUP. The analyzer has a default, full-scale output of 5.00 mg/L. If another full-scale range is desired, set that value prior to adjusting the 4-20 mA output. Select: 20 mA Cl Equivalence and change the full-scale output if necessary using the UP/DOWN buttons on the keypad.

Depress the BACK button and select: DAC Counts for 4 mA. The analyzer will output 4 mA. Read the output with a properly calibrated voltmeter at the analyzer, datalogger, or other remote device or location. If the analyzer signal is being connected to some other device that may be a considerable distance from the analyzer, then the signal output should be measured at that location. Using the UP/DOWN buttons, adjust the 4 mA output until the reading is within speciﬁcation.

Depress the BACK button and select: DAC Counts for 20 mA. The analyzer will output 20 mA. Read the output with a properly calibrated voltmeter at the analyzer, datalogger, or other remote device or location. If the analyzer signal is being connected to some other device that may be a considerable distance from the analyzer, then the signal output should be measured at that location. Using the UP/DOWN buttons, adjust the 20 mA output until the reading is within speciﬁcation.

Depress the BACK button then the DOWN button and navigate to mid-range test. The analyzer will output 12 mA. It will be necessary to save these settings in the method. Save the method settings. Save the method settings: MENU >

METHOD > METHOD SAVE RESTORE > SAVE CURRENT METHOD.

4.8 Setting the Alarm/Timed Event Relays

4.8.1 Setting the Alarm Relays with Keypad

The analyzer has two potential-free relays (Relay 1 and Relay 2). The relay settings are accessed through MENU > METHOD > RELAYS. The relays may be assigned to one of the functions below. Only one function can be assigned

to each relay. The relays are rated for 30 VDC, 6A. They are not designed for high voltage, or alternating current applications.

• Low Concentration: The alarm is triggered if the chlorine concentration is less than or equal to the setpoint. The

setpoint has a range of 0.00 to 5.00 mg/L.

• High Concentration: The alarm is triggered if the chlorine concentration is greater than or equal to the setpoint.

The setpoint has a range of 0.00 to 5.00 mg/L.

• Timed Event: Operates as a timed relay. The relay can be activated during the time between RUN start and

approximately 10 seconds before reagent injection. The relay can be deactivated during the time between RUN start and approximately 10 seconds before reagent injection.

Analyzer Operation

Perform the following steps to assign a function to Relay 1 or Relay 2.

1. Select: MENU > METHOD > RELAYS

2. Select: RELAY 1 MODE

The MODE selection determines how the relay will operate. The choices are as follows:

1. (0): Operates as a timed relay with setpoints entered in RELAY 1 TIME ON and OFF.

2. (1): Alarms when the chlorine concentration is below, or equal to, the setpoint that is set in RELAY 1 SETPOINT.

3. (2): Alarms when the chlorine concentration is higher, or equal to, the setpoint that is set in RELAY 1 SETPOINT.

4. (3): Operates as a system alarm when an error ﬂag is set.

Save the method settings: MENU > METHOD > METHOD SAVE RESTORE > SAVE CURRENT METHOD.

When the relays are conﬁgured as concentration/error alarms, the relay is activated when the condition occurs. Either relay may be activated on high chlorine, low chlorine, or error ﬂag. Alarm relays can be used to control chemical feeds as ON/OFF control, by using them as a high or low alarm set point through an auxiliary device such as Programmable Logic Controller (PLC).

4.8.2 Setting the Alarm Relays through MODBUS

The items available for viewing under status are covered in Section 5 and will not be covered in detail in this section. However, the information provided under STATUS is very important if troubleshooting is necessary.

1. The alarm is set through Modbus. The alarm type is register 16: 0=off, 1=low alarm, 2=high alarm, & 3+ error alarm. The alarm set point is a ﬂoating variable assigned to registers 17 & 18

2. If the alarm type is set to 1, then the alarm will go off if the Cl concentration is below the set point. If the alarm type is set to 2, then the alarm will go off if the Cl concentration is above the set point.

3. If the alarm is set to 0, then the alarm output acts like a time relay according to TimeValve1On (Modbus 33) and TimeValve1Off (Modbus 34).

4.9 Calibration

The 3017M Chlorine Analyzer is factory calibrated. The instrument does not require calibration unless it is speciﬁed by your regulatory agency or standard operating procedure. Follow the instructions in Section 4.9 for calibration of the analyzer.

4.9.1 Calibration with a Known Standard

CAUTION Chemical exposure hazard: Always review the Safety Data Sheets (SDS) that accompanies

any chemical to familiarize yourself with proper handling precautions, emergency procedures, and waste disposal. Protective eye wear is recommended when handling any chemical.

1. Place the analyzer in the STANDBY mode.

2. Prepare a zero chlorine solution by placing 1 liter of normal water on a heated stirring plate and heat for 24 hours, while stirring, at just under 100 °C. It is not necessary to boil the water. Otherwise, obtain 1 liter of chlorine-free, demineralized water.

Analyzer Operation

3. Using the water from step 1, prepare a chlorine standard solution with a value of 3 to 5 mg/L. Determine the value of the standard to the nearest 0.01 mg/L using a EPA approved reference method.

4. Select: MENU > LINEARIZATION > CALIBRATION STANDARD. Enter the value of the calibration standard that was determined in Step 3. Use the BACK button to exit back to the HOME screen.

5. Remove the 1/8-inch sample line from the bottom of the analyzer that is connected to the Sample Inlet Device, and connect the piece of 1/8-inch tubing that can be found with the instrument.

6. Place the line in the standard and from the keypad select: RINSE. Rinse the sample pump tube and ﬂowcell for 2 minutes.

7. Select: STANDBY and allow the sample pump to come to a complete stop.

8. Select: STARTUP. The analyzer will enter the normal STARTUP cycle, and proceed to normal RUN state. Allow the analyzer to run on this standard for approximately 5 cycles, or 10 minutes.

9. While the analyzer is running the standard, select: CALIBRATE. The analyzer will query: CALIBRATE TO LAST DIPLAYED VALUE. Select: ENTER.

10. The displayed value on the display will change to the calibration standard value. The analyzer is now calibrated.

11. Save the method settings: MENU > METHOD > METHOD SAVE RESTORE > SAVE CURRENT METHOD.

4.9.2 Calibration by Comparison

NOTE: Grab samples are used in this calibration technique. The chlorine concentration in the process stream should be stable and the grab samples should be immediately analyzed.

Calibration by comparison involves analyzing the sample stream with a reliable, accurate laboratory method, such as a DPD spectrophotometric, or amperometric titration method. If a handheld meter is used for the calibration, as is typically the case, then it is suggested that three, successive measurements of the process stream are taken with results within 0.03 mg/L of one another. Use the average value of the three readings for the calibration. The response of the 3017M is then set to match this result. Setting the calibration at a concentration below the mid-point of the calibration range 0 to 5 mg/L may result in loss of accuracy at the upper end of the calibration range.

Perform the following steps:

12. Leave the analyzer in the RUN mode.

13. Obtain the grab sample as close as possible to the analyzer. If the Sample Inlet Device is used and the drain line is accessible, this could be a good sampling point. Immediately perform the laboratory analysis or take the handheld meter reading. If the latter technique is used, take three measurements in quick succession. These measurements should be within 0.03 mg/L of each other. Use the average value.

14. Select: MENU > LINEARIZATION > CALIBRATION STANDARD. Enter the value of the calibration standard that was determined in Step 2. Use the BACK button to exit back to the HOME screen.

15. From the Main Menu, use the UP/DOWN buttons and select: CALIBRATE. The analyzer will query: CALIBRATE TO LAST DIPLAYED VALUE. Select: ENTER.

16. The displayed value on the display will change to the calibration standard value. The analyzer is now calibrated.

17. Save the Method settings: MENU > METHOD > METHOD SAVE RESTORE > SAVE CURRENT METHOD.

Analyzer Operation

5. Default Conﬁg & Method Settings

Section 4 provides a detailed description of the various tiers of commands and settings in the 3017M ﬁrmware. The 3017M is tested and shipped with default settings for the various functions. These default settings are appropriate for most applications.

NOTE: Adjustment of the settings found in the various tiers of the 3017M ﬁrmware are only accessible if the instrument is in an UNLOCKED status. Refer to MAINTENANCE<ENGINEERING ACCESS.

5.1 Method Settings

The method settings are described in Section 4. These settings are appropriate for all applications. For reference, the default settings are listed here.

5.1.1 Times

Parameter

RUN TIME 160 Cycle time. Sample to sample analysis time.

INJ TIME 56

INTEGRATE START 40

INTEGRATE STOP 56

STBY RUN TIME 8

STBY WAIT TIME 1800 The time between each STANDBY pump cycle.

RINSE TIME 90

PRIME TIME 60

NOTE: Under almost all circumstances, it is not necessary to adjust any of these times. If any of these times are changed, it will be necessary to use the METHOD SAVE RESTORE function, and SAVE CURRENT METHOD.

Time (seconds)

Explanation

Amount of time that reagent pump runs during a measurement cycle.

The time, in the cycle, when the integration of the photodiode response starts.

The time, in the cycle, when the integration of the photodiode response stops.

The amount of time that the reagent pump will run when the analyzer is in STANDBY mode; the sample pump will run for one minute after reagent pump stops.

The amount of time that the analyzer rinses the ﬂowcell with sample during the STARTUP sequence.

The amount of time that the analyzer primes the sample during the STARTUP sequence.

Default Conﬁguration & Method Settings

5.1.2 Pumps

Parameter

SAMPLE FLO RUN 1,000 Sample ﬂow rate during the RUN cycle.

SAMPLE FLO PRI 2,086 Sample ﬂow rate during in the PRIME mode.

SAMPLE FLOW STBY 2,086 Sample ﬂow rate in STANDBY mode.

SAMPLE FLO RINSE 2,086 Sample ﬂow rate in the RINSE mode.

REAG FLOW RUN 25 Reagent ﬂow rate during the RUN cycle.

REAG FLO PRIME 400 Reagent ﬂow rate during the PRIME cycle.

REAG FLO STBY 40 Reagent ﬂow rate during the STANDBY mode.

REAG FLO RINSE 80 Not used. Reagent pump is OFF during RINSE.

Time (seconds)

Explanation

5.1.3 LEDs

LED SETTING (SELECTION) Default Setting

GREEN LED POWER % (18) for 3017M

NOTE: The 3017M has three LED’s; green, blue and red. Only one of those wavelengths is used at any given time. The selection of the wavelength is application dependent. The selection of wavelength, or the LED Power setting should not be changed under any circumstances.

5.2 Setup

The setup menu contains important settings that can be used to conﬁgure the 3017M for Modbus control, or other control systems. These settings are mainly found under COMMUNICATIONS and 4-20 mA SETUP. The settings listed are the default settings.

5.2.1 Communications

Parameter Explanation

Baud Rate 9600

Modbus Address 1

Mode ASCI/RTU RTU

Modbus Local Control MODBUS IS AVAILABLE

Default Conﬁguration & Method Settings

5.2.2 4-20 mA Setup

Parameter Explanation

DAC Counts for 4 mA SET DAC = 28E9 CNTS

DAC Counts for 20 mA SET DAC = CC3D CNTS

4 mA Cl Equivalence 4 mA SET = 0.000 mg/L

20 mA Cl Equivalence 20 mA SET = 5.000 mg/L

Mid-Range Test See below

NOTE: The DAC counts shown above are the default values. The 4 and 20 mA outputs are not adjusted at the factory as part of the checkout procedure. The DAC count values are different than the default values for every instrument. The Mid-Range test value will depend on the adjustment of the 4 and 20 mA output settings.

5.3 Status

The items available for viewing under status are covered in Section 4 and will not be covered in detail in this section. However, the information provided under status is very important if troubleshooting is necessary.

5.4 Linearization

The entries under linearization allow for ﬁeld calibration of the 3017M, ﬁeld linearization of the 3017M and viewing of the calibration gain. The 3017M is linearized and calibrated at the factory as part of the checkout process; therefore, each analyzer will have a unique set of linearization coefﬁcients. In most cases, it is not necessary to recalibrate, or relinearize, the 3017M. A complete procedure for linearization will be covered in the maintenance section, Section 6.

5.5 Maintenance

There are no default settings for the command under maintenance except for ENGINEERING ACCESS. The default value for ENGINEERING ACCESS is (15). This must be set to (19) to gain access to all other settings.

Default Conﬁguration & Method Settings

6. Maintenance

WARNING The processes and procedures in this section involve handling chemicals. Only qualiﬁed personnel should conduct the tasks in this section.

WARNING The processes and procedures in this section involve working with electrical circuits. Only qualiﬁed personnel should conduct the tasks in this section.

6.1 Regularly Scheduled Maintenance

6.1.1 Reagent Replacement

The buffer and indicator reagents last approximately one month. New containers will accompany the reagent kits, part number 330006 and 330007, and should be used for the new reagents. Discard the old containers. Install the new containers as outlined below.

The REAGENT LIFETIME TIMER should have been set to the desired time; usually between 30 – 40 days. If the time has expired, a warning will be ﬂashing on the HOME screen. Navigate to the MAINTENANCE screen, and select:

CLEAR ALARMS & TIMERS.

6.1.2 Pump and Reagent Tube Replacement

The sample and reagent pump tubes will deteriorate over a period of time due to the action of the peristaltic pump rollers and the pressure of the platens. The recommended replacement interval is six months.

Replacement Procedure

1. It is not necessary to shut off sample ﬂow at the Sample Inlet Device or disconnect power to the analyzer. However, the analyzer should be in the SHUTDOWN mode to prevent rotation of the sample and reagent pumps that normally occurs in the STANDBY mode.

2. Remove the cover of the sample pump. Disconnect the sample inlet and waste lines at the barb ﬁttings. Retain the barb ﬁttings for transfer to the new sample pump tube. See Figure 6.1 for installation of the new sample pump tube.

3. Position the tube so that it connects so that the barb ﬁttings on each end are even; they will be adjusted in a later step.

4. Locate the package of silicone lubricant and cut a small opening across one corner of the package.

5. Apply a thin layer of the silicone lube to the section of the tube that will mount on the roller in the pump. A small bead of approximately 3-mm in diameter should be sufﬁcient. Spread the lube along the section of the tube that will contact the pump tube rollers. Do not apply the lube in excess. There is sufﬁcient lubricant in the startup kit for multiple pump tube installations. Remove any excess.

6. Hold the pump tube over the roller, and gently push the roller onto the drive shaft of the pump motor.

Figure 6.1 Positioning of sample pump

tube in sample pump

Maintenance

Figure 6.2 Completed pump tube installation

7. Refer to Figure 6.2.

8. Snap the cover into place so that the roller stays in place.

9. Gently pull the sample tube back and forth so that the ends with the barb ﬁttings are even with each other.

10. Install the sample inlet tube to the left-hand side barb ﬁtting on the sample pump. Connect the right-hand-side barb ﬁtting to the line from the sample pump to the ﬂowcell.

11. Disconnect the buffer and indicator pump tubes from the ﬂowcell and the reagent bottles. Relieve the pressure on the reagent pump platens by pushing up on the tensioners. Refer to Figure 6.3.

12. Release the platens on the reagent pump by pulling back on the tabs that extend at the top and gently pulling downward on the platens. Discard the old reagent pump tubes.

13. Locate the replacement pump tubes. There are two tubes; one for the buffer and one for the indicator.

14. Hold a pump tube so that the locking tab (blue tab) is in your left hand. Attach the end in your right hand to the reagent port marked (B). This will be the port closest to the right-hand-side of the enclosure.

15. Route the tube through an empty cassette, placing the locking tab on the tubing against the left outer edge of the cassette, and then snap it into place in the rear slot.

16. Attach the free end to the barb ﬁtting on the buffer reagent container.

17. Repeat the three steps above (14, 15, and 16) for the indicator reagent tube. The indicator platen/tube will go in the front slot.

18. Tension the platens by pushing down on the tensioners. The tensioners will make an audible “click”. Typically, three “clicks” is sufﬁcient tension on the pump tube.

19. See Figure 6.4.

20. This completes the installation of the reagent pump tubes.

Figure 6.3 Installation of buffer reagent tube

Priming the Tubes

The new tubes must be primed with liquid, sample and reagent before the analyzer is returned to normal operation. Prime the tubes as follows:

1. From the HOME screen, use the UP/DOWN buttons and navigate to the PRIME > ENTER.

2. Observe the waste line from the ﬂowcell and once the line is free from bubbles, the lines are primed with liquid.

3. Select: STANDBY > ENTER. Pump rotation will cease. Inspect all connections for leaks, and if none are found, proceed to step 4.

4. Select: STARTUP > ENTER. The analyzer will begin normal operation.

Figure 6.4 Completed reagent tube

installation and platen tensioning

Maintenance

6.1.3 Flowcell Cleaning

The colorimeter measuring cell may develop a ﬁlm from the growth of biological material or from the reagents over time. Cleaning with a concentrated bleach solution should be all that is necessary to remove this material. The 3017M has shown to not be susceptible to build-up of this nature for as long as 150-180 days. If the output of the 3017M falls outside of the validation checks, then this may indicate the need for measuring cell cleaning. See Section 7, Troubleshooting for a more complete description on this.

CAUTION Chemical exposure hazard. The chemicals used in this procedure may be hazardous if inappropriately handled or accidentally misused. Protective eyewear is always recommended when contact with chemicals is possible. Follow all precautionary instructions on the labels.

Measurement Cell Clean Procedure

1. Regular, household bleach, like Clorox®, is all that is necessary for measurement cell cleaning.

2. It is not necessary to remove power from the instrument. Using the keypad, place the instrument in SHUTDOWN mode to prevent rotation of the pumps.

3. Using the syringe assembly that is provided with the analyzer, ﬁll the syringe with 10-mL of full-strength bleach.

4. Remove the plug on the cleaning port and attach the ﬁtting on the end of the tube connected to the syringe assembly.

5. Slowly inject 7-8 mL of the cleaning solution, leaving a small amount in the syringe. The liquid will ﬂow through the measurement cell and into the waste line. Do not remove the syringe assembly.

6. Allow the solution to sit in the measurement cell for 5 minutes.

7. Gently pull the cleaning solution that had been injected in Step 5 back into the syringe. Disconnect the syringe from the tubing at the Luer ﬁtting. Discard the dirty cleaning solution and thoroughly rinse the syringe assembly by pulling 5 full syringe volumes of DI Water and discarding each syringe volume.

8. Fill the syringe with DI Water and gently push the water through the measurement cell. Repeat this step 5 times.

9. Disconnect the cleaning assembly at the ﬂowcell cleaning port, and reinstall the plug.

10. Using the process sample, place the instrument in the RINSE mode. Use the UP or DOWN arrows and toggle to the RINSE command. Press ENTER. Allow the analyzer to rinse with the process sample for 10 minutes.

11. Toggle to STARTUP and press ENTER.

6.2 Unscheduled Maintenance

6.2.1 Fuse Replacement

DANGER Electrocution hazard. Remove power from the instrument when removing or installing the fuse.

DANGER Fire hazard. The replacement fuse must be of the same type and rating. A spare fuse can be found in the analyzer Startup Kit.

Maintenance

Fuse Replacement Procedure

1. Ensure that the replacement fuse is: 5x20mm, 500mA, 250V. This fuse can be used for both 115VAC and 230VAC operation.

2. Disconnect the mains power at the source: outlet, switch, circuit breaker, or any other device.

3. Locate the fusible link on the terminal block and gently pull it open. Refer to Section 2, Figure 2.8.

4. The fuse is located inside the fusible link. Open the cover of the link and the fuse will be rejected by the fuse holder clips. Remove the fuse.

5. Insert one end of the new fuse into the clip and push down to secure the fuse in the clip. Close the cover and the fuse will snap into place.

6. Close the fusible link and restore power at the source.

6.2.2 Linearization

The 3017M is linearized at the factory and the results veriﬁed at the factory before shipment. Under normal circumstances, it should not be necessary to re-linearize the analyzer. The decision to re-linearize the analyzer should be made in consultation with Technical Support. There may be other means to solve an apparent issue with the linearization without following this procedure. Some guidance is provide in Section 7, Troubleshooting.

Linearization Coefﬁcients

There are three linearization coefﬁcients for the 3017M: A-COEF, B-COEF, and C-COEF. These coefﬁcients are stored under the LINEARIZATION menu. These coefﬁcients are also recorded at the factory for each 3017M and are stored by the serial number of the analyzer. If you have a question as to the correct value of the coefﬁcients, contact Technical Support and verify them. This may eliminate the need for re-linearization of the analyzer.

NOTE: The linearization coefﬁcients should not be arbitrarily changed, under any circumstance, as incorrect results will be obtained by the 3017M. If for some reason, the linearization coefﬁcients differ from what is recorded at the factory, the correct value can be entered after consultation with Technical Support.

NOTE: Record the current linearization coefﬁcients for reference before starting this procedure.

The linearization coefﬁcients are determined by analyzing a series of very well deﬁned standards. Under

LINEARIZATION, these are designated as: LOW LINEAR STANDARD, MED LINEAR STANDARD, and HI LINEAR STANDARD. The 3017M ﬁrmware will determine each of the coefﬁcients after the results of the three standards are

recorded.

6.2.3 Field Linearization Procedure

NOTE: Certain settings on the 3017M will be changed during this procedure. It will be necessary to UNLOCK the analyzer to modify these settings. Navigate to: MAINTENANCE > ENGINEERING ACCESS and enter the passcode, 19.

Preparation of Linearization Standards

All steps of the ﬁeld linearization process are important and one of the most critical steps is the preparation of the three standards. Reasonable care and good laboratory practices should be followed in the preparation of the standards.

The range of the 3017M is 0 – 5 mg/L. The standards that will be used to linearize the analyzer will need to be within this range. The typical values for linearization standards are: zero (0), 1.5 – 2.5 mg/L and 4.0 – 5.0 mg/L. Never exceed the maximum range of the analyzer.

All glassware has some chlorine demand; therefore, glassware must be conditioned with chlorine before it is used to prepare standards. Prepare three, 1-L containers by adding 1-mL of household bleach and ﬁlling the container to overﬂowing. Cap the container and allow it sit for a period of several hours. After this conditioning period, thoroughly rinse each container with chlorine-free water that will be used to prepare the standards. DI Water is preferred but not absolutely necessary. Fill each container with the water that will be used to prepare the standards, and determine if there is any chlorine residual. Rinse as many times as necessary.

Maintenance

NOTE: Very often, DI Water systems are sanitized with sodium hypochlorite (bleach). Therefore, it is possible that these systems may have a low-level residual chlorine level. Make a determination with a handheld meter, or some other technique to verify that the water used in this procedure is chlorine free.

The water that was used to rinse the three containers will be the water used for the zero (0) linearization standard. Prepare the other two standards in the range listed above and verify the concentration with a secondary technique. Allow the standards to sit for 24 hours. Re-verify the concentration and adjust as necessary.

NOTE: Chlorine concentration can decrease slowly, over time, after the initial preparation. The linearization will be affected if the chlorine standard is slowly decreasing in value while the 3017M is analyzing a standard.

Once the chlorine concentration of the linearization standards have been veriﬁed, it will be necessary to enter these values for each of the three linearization standard entries: LOW LINEAR STANDARD, MED LINEAR STANDARD, and HI LINEAR STANDARD.

Entering the Linearization Standard Values

1. Navigate to LINEARIZATION. Use the UP or DOWN arrows and navigate to: LOW LINEAR STANDARD. Press Enter. The default value should be zero (0). Follow the prompts on the screen to enter the correct value. The screen will display the previous menu after entry.

2. Use the DOWN arrow to navigate to: MED LINEAR STANDARD. Follow the same procedure as in Step 1.

3. Use the DOWN arrow to navigate to: HI LINEAR STANDARD. Follow the same procedure as in Steps 1 and 2. At this point it would be prudent to verify each entry for the three linearization standards.

Analyzing the Linearization Standards

1. Depending on the location site of the 3017M, it may be necessary to position a table, cart, or some other sturdy and ﬂat surface upon which to rest the linearization standards. Access to the sample inlet ﬁtting on the bottom of the enclosure will be necessary.

2. If the 3017M is running, place it in SHUTDOWN. Disconnect the sample line at the bottom of the enclosure and attach a section of 1/8-inch OD, Teﬂon® tubing. The length of the tubing should not exceed 1 m (3.25-ft). If you do not have this tubing, contact Technical Support and it can be provided for you.

3. Analyze the standards in order of increasing concentration. Place the zero linearization standard, LOW LINEAR STANDARD in position. From the keypad, place the 3017M in the RINSE mode. Rinse the sample pathway until the sample pathway is free of air bubbles.

4. Once the sample pathway is thoroughly rinsed, press: STARTUP. It is not necessary to exit from RINSE. The 3017M will move immediately to STARTUP.

5. After the STARTUP sequence, the 3017M will begin the analysis of the sample. Allow the instrument to make at least ﬁve (5) measurements.

6. While the last result is being displayed and before the next measurement, navigate to: LINEARIZATION > LINEARIZATION TASK > LINEAR TASK LO. Press the UP button to LOCK the last result. This will lock the absorbance value that is associated with this standard.

7. Place the instrument in SHUTDOWN. Remove the LO LINEAR STANDARD and position the MED LINEAR STANDARD. Enter: PRIME and allow the MED LINEAR STANDARD to ﬁll the sample path way and ensure that all bubbles have been removed from the sample path way. Select: STARTUP.

8. While the last result is being displayed and before the next measurement, navigate to: LINEARIZATION > LINEARIZATION TASK > LINEAR TASK MED. Press the UP button to LOCK the last result. This will lock the absorbance value that is associated with this standard.

9. Place the instrument in SHUTDOWN. Remove the MED LINEAR STANDARD and position the HI LINEAR STANDARD. Enter: PRIME and allow the HI LINEAR STANDARD to ﬁll the sample path way and ensure that all bubbles have been removed from the sample path way. Select: STARTUP.

10. While the last result is being displayed and before the next measurement, navigate to: LINEARIZATION > LINEARIZATION TASK > LINEAR TASK HI. Press the UP button to LOCK the last result. This will lock the absorbance value that is associated with this standard.

Maintenance

11. Use the DOWN arrow to select: RE-LINEARIZE. Once this selection is made the following screen will be displayed. See below. If the data check passed has passed all criteria, use the UP button to recalculate the linearization coefﬁcients. If the data check did not pass, then it will be necessary to repeat this procedure. See Figure 6.5.

BACK

DATA CHECK:

DATA PASSED CHECK

PRESS UP BUTTON TO

RECALCULATE COEF

ENTER

Figure 6.5 3017M display screen with data check pass

12. Place the instrument in SHUTDOWN. Remove the HI LINEAR STANDARD and position the MED LINEAR STANDARD. Enter: PRIME and allow the MED LINEAR STANDARD to ﬁll the sample path way and ensure that all

bubbles have been removed from the sample path way. Select: STARTUP.

13. The reported value for the MED LINEAR STANDARD should be within acceptable variance. If it is not within acceptable variance, it may be necessary to recheck the concentration of the chlorine standards and repeat this process. It would be advisable to contact Technical Support.

14. Upon completion of this procedure, navigate to: METHOD > METHOD SAVE RESTORE > SAVE CURRENT METHOD. Failure to take this step will result in the loss of the newly determined coefﬁcients in the event of a power cycle.

Maintenance

7. Troubleshooting

7.1 Basic Guide

Symptom Cause Corrective Action

Display does not light, the pumps do not operate and cooling fan is not audible.

Display does not light but the pumps operate and fan is audible.

Display lights, fan is audible, but the pump, or pumps, do not operate

Air bubbles in the line leading to the ﬂowcell.

Check the external switch or breaker,

No power to the analyzer.

Loose connection on the control board or issue with the control board.

Incorrect (low) line voltage.

Loose connection at the main control board for either pump.

Defective power supply Replace power supply.

Defective main control board Replace main control board.

Sample is not present at the sample pick-up line.

Reagents are empty. Replace reagents.

Reagent pump platens are not properly tensioned.

Sample or reagent tubes are worn or damaged.

connections at the terminal block, ensure the fusible link is fully closed, and the fuse is not blown.

Check connector from display to main control board. Replace main control board.

Measure line voltage at the terminal block.

Check connector(s) for affected pump, or pumps.

View the clear tubing on the Sample Inlet Device (if installed). Liquid should be visible.

Check for the presence of sample in any other device or sample point.

Check for clogged tubing or screen.

Tension the pump platens by three “clicks” from the released position. Refer to Section 3 of the manual.

Check sample and reagent tubes for wear and replace, if necessary.

Maintenance

Loose ﬁttings Check that all ﬁttings are tight.

Sample and reagent tubes were not properly primed after service.

Table 1 Basic troubleshooting steps for the analyzer

Select PRIME from the main menu and ﬁll lines with sample and reagents.

Symptom Cause Corrective Action

Bubbles in the ﬂowcell. See above.

Check reagent levels.

Sample is ﬂowing but reagents are not ﬂowing.

Zero Reading

No chlorine in sample.

Reagents are ﬂowing but sample is not ﬂowing.

Clogged sample tubing or screen (if installed).

Worn pump or reagent pump tubes. Replace tubing.

Low Reading

Erratic Reading Air bubbles in the optical cell.

Weak or improperly prepared reagents.

Dirty ﬂowcell Clean ﬂowcell.

Disconnect buffer, and/or, indicator tube at ﬂowcell. Reagent should drip each tube. If not present, see below.

Check tension on reagent pump platens.

Verify that sample has chlorine with grab sample measurement.

Replace tubing.

Replace reagents.

Use all of the recommended tips in the Air bubbles in the line leading to the ﬂowcell symptom above.

Negative Drift Weak reagents. Replace reagents.

Positive Drift Dirty optical cell Clean optical cell

Table 1, cont’d Basic troubleshooting steps for the analyzer

7.2 Using the Manual Controls and STATUS

Screen for Troubleshooting

In Section 4, the User Interface and all of the Tiers in the ﬁrmware were described in detail. The various functions and status screens that are available to the User can be very helpful for troubleshooting purposes. The items below list some of the more common uses.

7.2.1 No Sample or Reagent Flow

RINSE Function

If the instrument is running, place it in SHUTDOWN: Press ENTER > SHUTDOWN. Use the UP and DOWN arrows and navigate to RINSE. Press ENTER. The sample pump will rotate and attempt to pull sample from the process connection, or any container that is connected to the sample line.

Observe the line from the sample point; it should be ﬁlled with liquid. If it is ﬁlled with liquid, follow the ﬂow path and disconnect at various points to determine where ﬂow is lost. If the line is not ﬁlled with liquid, or if it is partially ﬁlled, and the liquid moves, back and forth, but does not advance up the tube, the sample pump tube should be replaced.

PRIME Function

If the instrument is running, place it in SHUTDOWN: Press ENTER > SHUTDOWN. Use the UP/DOWN arrows and navigate to PRIME. Press ENTER. will rotate and attempt to pull sample from the process connection, or any container that is connected to the sample The sample pump and reagent pump line, as well as, reagents from the reagent containers. If the sample has chlorine, the liquid from the exit of the measurement cell should be pink in color. This may be difﬁcult to discern for low chlorine concentration.

Troubleshooting

If sample ﬂow has been established and conﬁrmed, using the previous step, disconnect the buffer and indicator tubes at the ﬂowcell. Buffer and indicator solution should be visible at each of these connections. If no liquid is visible, check the container for reagent level and clogging of the reagent bottle dip tube. Check the tension on the reagent pump tensioners, but do not exceed the recommended tension. Refer to Section 2. If the reagent level is sufﬁcient, the dip tube is free of obstruction, and not ﬂow is present, replace the reagent pump tubes. Always replace them as a set.

7.3 Using Tier 3 Selections Under STATUS

for Troubleshooting

The STATUS menu in tier 3 has various selections that can be used for troubleshooting purposes. The settings in each of these entries are nonadjustable. A complete listing and description of the items in this tier is listed in Table 2. A brief explanation is given on how each item could be helpful in troubleshooting.

Option Description

Refrnc VDC The instantaneous voltage seen at the A/D convertor from the reference channel.

Sample VDC The instantaneous voltage seen at the A/D convertor from the sample channel.

The gain setting for the reference channel. (1) is the lowest setting and (8) is the high-

Ref

Sam

est setting. The number to the right of the Gain Setting can be used to monitor the gain change.

The gain getting for the sample channel. (1) is the lowest setting and (8) is the highest setting. The number to the right of the gain setting and can be used to monitor the gain change.

L The low linearization sample and its absorbance.

H The high linearization sample and its absorbance

M The medium linearization sample and its absorbance

C The calibration sample and its absorbance

Liquid Lvl Sensor The liquid level sensor status: 1 is tripped, 0 is not tripped

Error The error status: 1 is showing an error ﬂag, 0 is not showing an error ﬂag

Firmware The two-letter code is the ﬁrmware revision, ex. DZ.

PCA The PCA revision level.

Compiled The compile date of the ﬁrmware.

Table 2 Tier 3 selections under the STATUS menu. These are nonadjustable settings

and used as references for troubleshooting purposes

Troubleshooting

7.3.1 Main STATUS Screen

An example of the main STATUS screen is shown in Figure 7.1. The values in this ﬁgure are representative of the values that will be found on a 3017M; however, the exact values will be different for every instrument. This screen displays the following values from Table 1: Reference VDC, Sample VDC, Ref (Reference Gain), and Sam (Sample Gain).

BACK

Reference VDC 3.260

Sample VDC 3.018

Ref 1 019929.1

Sam 1 013576.5 0

ENTER

Figure 7.1 An example of the main STATUS screen

Reference VDC

As explained in Table 1, the reference VDC is the instantaneous voltage at the A/D converter for the reference channel. This voltage is typically in the range of 2.50 V to 3.50 V. The voltage reading on the reference channel is not affected by sample ﬂowing through the ﬂowcell; however, the voltage on the reference channel should be comparable to the voltage on the sample channel when clean, reagent-free water is ﬂowing through the ﬂowcell, but the voltages will not be identical. Instability on the reference channel can only be caused by some issue with the LED, reference photodiode, or the light guide that transmits light from the LED to the photodiode. If this voltage is outside of these values, the results could be affected, and you should contact Technical Support. A voltage of 0.5 V, or lower, indicates that the LED or photodiode is not working.

Sample VDC

As explained in Table 1, the sample VDC is the instantaneous voltage at the A/D converter for the sample channel. This voltage is nominally in the range of 2.50 V to 3.50 V. The voltage reading on the sample channel is affected by the intensity of the color change from the reaction of DPD with the chlorine in the sample ﬂowing through the ﬂowcell. As the intensity of the color changes, the voltage will decrease. At the INTEGRATION step in the instrument cycle, the voltage output should be very stable. The sample voltage may go lower than 2.50 V, if the chlorine concentration in the sample is at, or above, the maximum range of the analyzer. If this voltage is outside of these values, the results could be affected, and you should contact Technical Support. A voltage of 0.5 V, or lower, indicates that the LED or photodiode is not working.

Ref (Reference Gain)

The electronics and control ﬁrmware of the 3017M is constantly monitoring, and adjusting, if necessary, the gain setting on both the reference and sample channels. The number after “Ref” is the gain setting. For the reference channel, this number is typically 1, or possibly 2. The number to the right of the gain setting is the actual Analog-toDigital converter (A/D) counts for the reference channel. This number should be between 32K and 15K counts. If for some reason, the output of the A/D cannot reach 15K counts, the gain setting will be increased to the next highest setting. The only factors that will affect the reference gain setting is the LED output, the condition of the ﬁber optic pathway between the LED and the photodiode, the photodiode, and temperature. A LED will become more efﬁcient at lower temperatures; therefore, a change in the Reference counts, and possibly, the gain setting could be observed at low temperatures. Conversely, a LED becomes less efﬁcient at high temperature.

Troubleshooting

Sam (Sample Gain)

The electronics and control ﬁrmware of the 3017M is constantly monitoring, and adjusting, if necessary, the gain setting on both the reference and sample channels. The number after “Sam” is the gain setting. For the sample channel, this number is typically 1, or possibly 2, but it could go as high as eight (8). The number to the right of the gain setting is the actual Analog-to-Digital converter (A/D) counts for the reference channel. This number should be between 32K and 15K counts. If for some reason, the output of the A/D cannot reach 15K counts, the gain setting will be increased to the next highest setting. The same factors that can affect the reference channel; LED output, the condition of the ﬁber optic pathway between the LED and the photodiode, the photodiode, and temperature can affect the sample channel. A LED will become more efﬁcient at lower temperatures; therefore, a change in the sample counts, and possibly, the gain setting could be observed at low temperatures. Conversely, a LED becomes less efﬁcient at high temperature. If the reference gain setting reaches a value of eight (8), it would be advisable to contact Technical Support.

The output and gain setting of the sample channel is also greatly affected by the condition of the measurement cell. It can be expected that the measurement cell will become dirty over time from possible biological growth on the walls of the cell, or staining from the DPD reaction products. In the normal course of operation, it can be expected that the gain setting will increase over time. If the gain setting reaches a value of eight (8), then some maintenance action would be necessary. In most cases, this would be cleaning of the measurement cell. If cell cleaning does not result in a lower sample gain setting, it would be advisable to contact Technical Support.

Countdown Timer

In Section 3, Analyzer Startup, the STARTUP sequence was explained and the steps in that sequence deﬁned. As part of the STARTUP sequence, there is a step, AUTOGAIN SET. At this point in the STARTUP sequence, sample that is free of reagent is ﬂowing through the measurement cell. The A/D counts for both reference and sample are being monitored, and if a gain change is necessary, it is made during this time.

A change in the gain does not result in an immediate change in the output. Therefore, a COUNTDOWN TIMER is initiated. This is the number zero (0) in the lower-right-hand corner of the STATUS screen. The gain change is made, and the slowly starts to rise, while the timer counts down from 10. If at the end of ten seconds, the value of the geference and sample output has not reached the 15K minimum criteria, the counter resets, and the countdown starts over. Once the minimum value, or some number above the minimum value, is reached the counter will stop. If the timer appears to be stuck in an endless loop, it would be advisable to contact Technical Support.

7.3.2 Liquid Level Sensor and Error Levels

Liquid Level Sensor

A liquid level sensor is not used on the 3017M. Therefore, it can be disregarded.

ERR 1-4 (Error Levels and MODBUS register)

The 3017M has four levels of errors and a MODBUS register assigned to that error. The WARNINGS and ERRORs that will be displayed on the HOME screen are listed in Table 3. The four levels of Errors are described as follows:

ERR 1

This is a fatal error. This error is usually the result of a processor failure, or the failure of some other critical electrical component. A failure of this type will prevent the operation of the instrument. Call Technical Support.

ERR 2

This is an error that may immediately affect the analyzer results. The analyzer will operate; however, it would be advisable to contact Technical Support in some cases. Refer to Table 2.

ERR 3

This is an error that may not immediately affect the analyzer results; however, if left unattended, the analyzer results will ultimately be affected.

ERR 4

These are WARNINGS. WARNINGS will self-reset once the condition causing the WARNING clears.

Troubleshooting

Warrning

Level Cause Corrective Action

or Error

ERROR: ADC 1 An A/D failure. Call Technical Support.

ERROR: FLASH/ ADDRESS

ERROR: MATH OR FLOAT

ERROR: SELF TEST 2 System did not pass Self-Test. Call Technical Support

ERROR: DATA OVERRANGE

WARNING: REAGENTS OLD

ERROR: AUTOGAIN 3

ERROR: CALIBRATION

ERROR: LINEARIZATION

1 A Processor failure. Call Technical Support

Navigate to MAINTENANCE < METHOD SAVE RESTORE. Select: SAVE CURRENT METHOD < ENTER. Navigate to STATUS. Ensure that the

A continuous bad data reading.

Either a bad A/D reading or bad linearization/gain settings.

The reagents have been in service more than seven (7) days past the REAGENT LIFETIME setting.

The instrument was unable to correct itself using autogain. It usually means that the cell needs to be cleaned, or the cell is broken or there is a bubble in the cell.

The instrument could not generate a good calibration. This could happen during ﬁeld calibration if the standard is not the proper concentration or the ﬂowcell is compromised.

The instrument could not generate a good Linearization. Either the standards were analyzed in the incorrect order, or the ﬂowcell is compromised.

values are in the range as described in Section

7.3.1. If the values are not in the proper range, navigate back to METHOD SAVE RESTORE and select: DEFAULT METHOD 3017. If the values are in the proper range, it will be necessary to contact Technical Support to obtain the correct linearization coefﬁcients.

Replace the reagents. Navigate to CLEAR ALARMS AND TIMERS under MAINTENANCE and clear the error. A new timer for REAGENT LIFETIME will be set.

Inspect the ﬂow path from the sample tap to the ﬂowcell for the presence of bubbles. If bubbles are present, correct the cause. If bubbles are not present, follow the cleaning procedure in Section

6. If cleaning does not correct the issue, remove the optical cell exit ﬁtting and extract the ﬂowcell glass. See Section 8. If the Flow cell glass is broken, replace it.

Ensure that a value for the calibration standard has been entered under: LINEARIZATION < calibration standard. If a value of zero (0) is entered for the calibration standard, this will also cause the error. Refer to the corrective action under ERROR AUTOGAIN and follow these steps if necessary.

Repeat the process and ensure that the standards are the proper value and are analyzed in the proper order. Refer to the corrective action under ERROR: AUTOGAIN and follow these steps if necessary.

Table 3 List of ERRORS and WARNINGS for the 3017M

Troubleshooting

Warrning or Error

ERROR: TEMPERATURE

WARNING: TEMPERATURE

WARNING: REAGENTS OLD

Level Cause Corrective Action

If the analyzer is installed in a location in which the ambient temperature exceeds the 3017M speciﬁcations, this could cause the error. If ambient conditions are within speciﬁcation, the

4 Temperature is out of range.

The temperature has been outof-range for over 24 hours.

The reagents are within seven (7) days of the REAGENT LIFETIME SETTING.

Table 3, cont’d List of ERRORS and WARNINGS for the 3017M

thermoelectric cooler assembly will need to be checked for proper operation. Ensure that external cooling fan is ON and turning, place your hand on the cold ﬁnger (metal plate against the indicator bottle) and determine if it is cold. It should be cold to the touch. If the cold ﬁnger is not cold, the TEC assembly will need to be serviced.

See the corrective action for ERROR: TEMPERATURE

Change the reagents within seven (7) days or an ERROR will be displayed at the end of seven (7) days.

7.3.3 Firmware and PCA Revision Levels

The information on this screen is for reference only. It may be necessary to have this information available to Technical Support for assistance with troubleshooting.

Troubleshooting

8. Parts and Accessories

The parts and accessories for the 3017M Chlorine Analyzer are listed on the following Illustrated Parts Breakdowns.

Part # Description

332266 MODEL-3017M DPD CHLORINE ANALYZER YSI

Parts List

Item # Part # Qty U/M Description

1 332100 1 EA 3017M MANUAL - YSI

2 332189 1 EA FRONT COVER, ENCLOSURE

3 327114 1 EA SAMPLE INLET DEVICE

Parts and Accessories

Parts List

Item # Part # Qty U/M Description

1 332096 1 EA 3017M MEASURING UNIT ASSEMBLY

2 332198 1 EA PUSH TO CONNECT FITTING, BR/NI 1/8” X 1/8”

3 332199 1 EA THROUGH WALL FITTING, BR/Ni 1/8” PUSHLOK TO 1/4”FMNPT

4 332182 1 EA BARBED FITTING, NYLON, DRAIN

5 332263 1 EA KIT - 3017M SPARE TUBING KIT

6 332270 1 EA REAGENT CAPS, 2 EACH

7 147901 72 IN TUBING-PTFE 1/8 X .062 INCH INNER DIAMETER, CLEAR, 3017M

Parts and Accessories

Parts List

Item # Part # Qty U/M Description

1 330773 1 EA SAMPLE PUMP, INCLUDES COVER AND ROLLERS

2 330842 1 EA REAGENT PUMP ASSEMBLY

3 329813 2 EA CLAMP-HALF P-CLIP .250 STEEL

4 332175 1 EA MEASUREMENT FLOW CELL, COMPLETE ASSEMBLY

5 330420 1 EA MAIN CIRCUIT BOARD, PROGRAMMED

Parts List

Item # Part # Qty U/M Description

1 332259 1 EA COVER-3017 SAMPLE PUMP

Parts List

Item # Part # Qty U/M Description

1 332260 1 EA ROLLERS - 3017 SAMPLE PUMP

Parts List

Item # Part # Qty U/M Description

1 332258 1 EA PLATEN CASSETTE STYLE REAGENT LEVER PUMP

Parts and Accessories

Parts List

Item # Part # Qty U/M Description

1 332172 1 EA FITTING, OPTICAL CELL DRAIN, STAINLESS STEEL

2 332269 1 EA GLASS FLOW CELL WITH O-RINGS

3 332079 1 EA SAMPLE FLOW CELL ASSEMBLY LENS

4 332090 1 EA ASSY-3017M CELL W/POTTED LIGHT GUIDES

5 332085 1 EA MIXER-3017M OPTICAL CELL, EACH

6 332075 2 EA FITING ASSEMBLY, REAGENT JET .005 INCH, 1 EACH

7 A000267 2 EA CLEANING PORT PLUG

Parts and Accessories

1 2X

3 2X

Parts List

18” X

14.5” X

Item # Part # Qty U/M Description

1 324084 2 EA FTNG-NUT CPVC 1/4-28 X 1/8” RV

2 317545 4 EA FREL-TFZL 1/8 FLANGELESS

3 332409 2 EA FTNG-ADPTR 1/4-28 X 3/16” ID BARB

4 332405 1 EA TUBE-3017M SAMPLE PUMP 3/16” ID

5 331121 1 EA LUBE-SILICONE 9017 PUMP TUBING 2GM

6 147901 50.5 IN TUBING-PTFE 1/8 X .062” ID CLEAR

7 319343 2 EA FTNG-NUT PK 1/4-28 1/8 NAT FLS

8 332268 1 EA KIT-3017M REAGENT TUBES

Parts and Accessories

Parts List

Item # Part # Qty U/M Description

1 328238 1 EA POWER SUPPLY-160W 24VDC 3X5

2 330875 1 EA ASSY-9017 INTERNAL FAN

3 330872 1 EA CABLE-9017 RS485 W/FERRITE, R3

4 330858 1 EA CABLE HARNESS-9017 AC PWR/SWITCH W/FERRITE

5 330837 1 EA CABLE-9017 DC FROM PWR SPLY TO MAIN PCA

6 332262 1 EA CABLE-9017M I/O PCF TO DIN

7 A000267 2 EA PLUG-1/4-28 TEFZEL

Parts and Accessories

Parts List

Item # Part # Qty U/M Description

1 296012 1 EA FILTER-PE 60U

2 332422 1 EA FTNG-PUSHLOCK ACTL 1/4NPT X 1/4”

3 332421 1 EA FTNG-PVC 1/2” MNPT X 1/4” FNPT

4 327112 12 FT TUBING-PVC CLR 1/2” ID X 3/4” OD

5 326376 1 EA ASSY-SAMPLE INLET SYSTEM 9210

6 327385 1 EA CLIP-COMPONENT 1”

Parts and Accessories

9. Declaration of Conformity

According to ISO/IEC Guide 22 and EN 45014. The undersigned hereby declares that the products listed below conform to all applicable Essential Requirements of the listed Directives and Standards and carry the CE mark accordingly.

Manufacturer’s Name YSI, a Xylem brand

Manufacturer’s Address 1725 Brannum Lane

Yellow Springs, OH 45387 USA

Product Name 3017M Chlorine Analyzer

Item Number 332266

Test Report Numbers • 21248-28

• 014279325ATL-001

Directives • RoHS 2011/65/EU

• EMC 2014/30/EU

• EMC EN 61326-1:2013

• EMC CISPR 11:2009+A1:2010

• LVD 2014/55/EU

• EN 61010-1:2010 3rd

• ETL Listed

Quality Manger

20 March 2020Gregory Popp

Part #281519-43S

Appendix A: MODBUS Manual

MODBUS manual for the 3017M Chlorine Analyzer, Rev EA 08/20.

0xXX Coils (Read/Write)

Number Hex Name Description

1 0x01 Bit Unused Unused

2 0x02 Bit RS489Enabled Enable use of MODBUS RS485

3 0x03 Bit 4-20Enabled Enable use of 4-20 mA output

4 0x04 Bit ClearAlarms Clear all alarms, coil automatically reset

5 0x05 Bit ClearAlarmsAndTimers Clear all alarms and hour/day/month timers,

coil automatically reset

6 0x06 Bit ZeroReading Clear all math and await next reading

7 0x07 Bit ZeroNewResultFlag Clear new result (status 6)

8 0x08 Bit UseAutoGain If set, over-range AD readings will AutoGain

9 0x09 Bit UseCcoef Force cal curve through 0 cleared

10 0x0a Bit Relay1 Activate/clear Relay1

11 0x0b Bit Relay2 Activate/clear Relay2

12 0x0c Bit Use AutoLEDSet AutoSet LEDs on AutoGain fail

13 0x0d Bit TemperatureDisable Turn off controls and alarms (to be used when

cooler not installed)

14 0x0e Bit Abort Force timer to zero

1xXX Status Inputs (Read only)

Number Hex Name Description

1 0x01 Bit Error

2 0x02 Bit Spare

3 0x03 Bit Relay1Active

4 0x04 Bit Relay2Active

5 0x05 Bit StandbymodeFlag

6 0x06 Bit NewResult

7 0x07 Bit IsInAutoGain

8 0x08 Bit StartHit

9 0x09 Bit StopHit

10 0x0a Bit Fault

11 0x0b Bit LiquidLevelLow

12 0x0c Bit IsInAutoLED

3xXX Input Registers (Read Only)

Number Hex Name Description

1, 2 0x01 Float CurrentClppm Current chlorine value in ppm (3 decimal places)

3, 4 0x03 Float CurrentInteg Current integrated value in area counts

5 0x05 Unsigned Int SecsSinceSample Time in seconds since last reading

6 0x06 Unsigned Int ﬁrmrvsnTRO Firmware revision in 2 characters, “xx”

7 0x07 Unsigned Int unused06 Spare

8 0x08 Unsigned Int unused07 Spare

9 0x09 Unsigned Int Modelnumber Model number 3017

10 0x0a Unsigned Int ReadingStatus 0-Unknown, 1-Normal, 2-OverRange,

3-UnderRange, 4-Need standard, 5-Need sample, 6-Error, 7-Old reading

11 0x0b Unsigned Int PCA_rev PCA REV in 2 characters, “xx”

12 0x0c Unsigned Int InstrumentErrorSummary (bitmapped)

ErrorExists 0-Error

Alarm1Active 1-Alarm 1 is active

Alarm2Active 2-Deactivated

Spare 3 to 15

13, 14 0x0d Long Int Level4Error Instrument warning, readings OK

Alarm1Active 0-Alarm 1 is active

Alarm2Active 1-Alarm 2 is active

LiqLvlSensErr 2-Liquid level sensor

ReadingsError 3-Reading error (Err Single A/D reading)

ReagentOld 4-Reagent is old and needs replaced (REPL)

TempError 9-Temp error

Spare 5 to 30 4

LockedOut 31-Unit is locked out for maintenance; no

MODBUS writes allowed

15, 16 0x0f Long Int Level3Error Instrument error, readings questionable

CalError 0-Calibration error (ZCAL)

LinError 1-Linearization error (ZCAL)

AutoZeroFail 2-Failure to autozero correctly, may be due to bad

cell, no sample, bad LED, resets on initiation of new autozero routine

Spare 3 to 8

TempErros 9-Continued temp error

Spare A-F spare

17, 18 0x11 Long Int Level2Error Instrument failure, requires intervention

PostError 1-Post error (POST)

DataOverRange 1-Data is outside linearized range

ReagentOld 2-Reagent over 1 month old

Spare 3 to 15

3xXX Input Registers (Read Only), cont’d

Number Hex Name Description

19, 20 0x13 Long Int Level1Error Instrument failure, take ofﬂine

Spare 0-Spare

A/D error 1-A/D continued failure

FlashReadErr 2-Continued ﬂash data read

FlashWritErr 3-Continued ﬂash data write

AddError 4-Addressing error ﬁrmware

MathError 5-Math Error Firmware

StackOvﬂ 6-S/W stack overﬂow

Spare 7-Spare

21 to 31 Int Spare

32 0x1f Unsigned Int ReagMonthTimer A timer to determine how old the reagent is

4xXX Input Registers (Read/Write)

Number Hex Name Description

1 0x01 Unsigned Int User User-deﬁned register (requested by user)

2 0x02 Unsigned Int Units 0-ppm, 1-mg/L

3 0x03 Unsigned Int Language 0-English, 1-Spanish, 2-French, 3-German,

4-Italian

4 0x04 Unsigned Int Method 0-TRO, 1-Municipal

5, 6 0x05 Float clppm420Lo Chlorine lo equivalent to 4mA ppm*1000

7, 8 0x07 Float clppm420Hi Chlorine hi equivalent to 20mA ppm*1000

9 0x09 Unsigned Int error420output 0-Off, 1-0mA, 2-2mA, 3-4mA

10 0x0a Unsigned Int BaudRate RS485 Baud rate

11 0x0b Unsigned Int PowerUpMode 0-Shutdown, 1-Standby, 2-Startup

12 0x0c Unsigned Int LinearizationMode 0-TRO 2-point cal, 1-Muni 3-point polynomial

13 0x0d Unsigned Int DaysTillReagentAlarm Default 30 days, 90 for cooler option

14 0x0e Unsigned Int MODBUSAdd MODBUS address

15 0x0f Unsigned Int RTUorASCII MODBUS protocol 1-RTU, 1-ASCII

16 0x10 Unsigned Int Relay1Type 0-Off, 1-Low alarm, 2- High alarm, 3-Error alarm

17, 18 0x11 Float Relay1SetPoint

19 0x13 Unsigned Int Relay2Type 0-Off, 1-Low alarm, 2- High alarm, 3-Error alarm

20, 21 0x14 Float Relay2SetPoint

22 0x16 Unsigned Int Unimplemented

23 0x17 Unsigned Int TimeStbyWait Seconds between pump pulse in standby mode

24 0x18 Unsigned Int TimeRunTotal Total cycle time in seconds

25 0x19 Unsigned Int TimeStbyWaitOld No longer in use

26 0x0a Unsigned Int TimeInjStart Time in seconds from 0 for injection starts

27 0x0b Unsigned Int TimeInjStop Time in seconds from 0 for injection stop

28 0x0c Unsigned Int TimeIntegStrt Time in seconds from 0 for integration start

29 0x0e Unsigned Int TimeIntegStop Time in seconds from 0 for integration stop

30 0x0e Unsigned Int TimeStbyRun Time in seconds for pumps to run in standby

31 0x0f Unsigned Int TimeRinse Time in seconds for rinse

4xXX Input Registers (Read/Write), cont’d

Number Hex Name Description

32 0x20 Unsigned Int TimeIntegBase Time in seconds from 0 to freeze baseline

33 0x21 Unsigned Int TimeRelay1on Time in seconds from 0 turn relay 1 on

34 0x22 Unsigned Int TimeRelay1off Time in seconds from 0 turn relay 1 off

35 0x23 Unsigned Int TimeRelay2on Time in seconds from 0 turn relay 2 on

36 0x24 Unsigned Int TimeRelay2off Time in seconds from 0 turn relay 2 off

37 0x25 Unsigned Int SmplFlowRun Sample ﬂow rate during run

38 0x26 Unsigned Int SmplFlowPrime Sample ﬂow rate during prime

39 0x27 Unsigned Int SmplFlowStby Sample ﬂow rate during standby

40 0x28 Unsigned Int SmplFlowRinse Sample ﬂow rate during rinse

41 0x29 Unsigned Int ReagFlowRun Reagent ﬂow rate during run

42 0x2a Unsigned Int ReagFlowPrime Reagent ﬂow rate during prime

43 0x2b Unsigned Int ReagFlowStby Reagent ﬂow rate during standby

44 0x2c Unsigned Int ReagFlowRinse Reagent ﬂow rate during rinse

45 0x2d Unsigned Int RunMode 0-Shutdown, 1-Standby, 2-Startup, 3-Prime, 4-Run

46 0x2e Unsigned Int ForceToMenuTreeState Used for troubleshooting

47 0x2f Unsigned Int MemOps Memory operations

48 0x30 Unsigned Int CurrentTempAct Current actual temperature

49 0x31 Unsigned Int CurrentTempSet Current temperature setpoint

50 0x32 Unsigned Int TempSetPointRun Temperature setpoints

51 0x33 Unsigned Int TempSetPointStby Temperature setpoints

53, 54 0x34 Float currentSamAD Current sample reading

55, 56 0x36 Float currentRefAD Current reference reading

57 0x38 Unsigned Int current4to20 Current 4-20mA output value

58 0x39 Unsigned Int Standard4mA D/A calibration counts-value for outputting 4mA

59 0x3a Unsigned Int Standard20mA D/A calibration counts-value for outputting 20mA

60 0x3b Unsigned Int LEDGrn Green LED preset 1-100 (0-65535)

61 0x3c Unsigned Int LEDBlu Blue LED preset 1-100 (0-65535)

62 0x3d Unsigned Int LEDRed Red LED preset 1-100 (0-65535)

63 0x3e Unsigned Int GainCh0 0-1, 1-2, 2-4, 3-8, 4-16, 5-32, 6-64, 7-128

64 0x3f Unsigned Int GainCh1 0-1, 1-2, 2-4, 3-8, 4-16, 5-32, 6-64, 7-128

65 0x40 Unsigned Int LinLowConc Lo linearization standard, ppm*1000

66 0x41 Unsigned Int LinMedConc Med linearization standard, ppm*1000

67 0x42 Unsigned Int LinHiConc Hi linearization standard, ppm*1000

68, 69 0x43-4 Float CalibrateGain Gain factor to snap the line

70, 71 0x45-6 Float LinearizeAcoef A-factor in y=ax^2+bx+c

72, 73 0x47-8 Float LinearizeBcoef B-factor in y=ax^2+bx+c

74, 75 0x49a Float LinearizeCcoef C-factor in y=ax^2+bx+c

76, 77 0x4b-c Float LinearizeLowAbsorb Locked cal absorbance for lo standard

78, 79 0x4d-e Float LinearizeMedAbsorb Locked cal absorbance for med standard

80, 81 0x4f-0 Float LinearizeHiAbsorb Locked cal absorbance for hi standard

82 0x51 Unsigned Int CalibCommand 1-Lock lo, 2-Lock med, 3-Lock hi, 4-Recalculate

83 0x52 Unsigned Int CalibrateStd Calibration standard, ppm*1000

4xXX Input Registers (Read/Write), cont’d

Number Hex Name Description

84 0x53 Unsigned Int Relays (bitmapped)

mpc_out_ISO_Start 0

mpc_out_ISO_Stop 1

mpc_out_Relay_2 2

mpc_out_Relay_1 3

mpc_out_Spare 4

mpc_out_Spare 5

mpc_out_Fault 6

mpc_out_Spare 7 to f

85 0x54 Unsigned Int Level4ErrMaskU Error mask, 1-Error bit enabled 10 to 1f

86 0x55 Unsigned Int Level4ErrMaskL Error mask, 1-Error bit enabled 0 to f

87 0x56 Unsigned Int Level3ErrMaskU Error mask, 1-Error bit enabled 10 to 1f

88 0x57 Unsigned Int Level3ErrMaskL Error mask, 1-Error bit enabled 0 to f

89 0x58 Unsigned Int Level2ErrMaskU Error mask, 1-Error bit enabled 10 to 1f

90 0x59 Unsigned Int Level2ErrMaskL Error mask, 1-Error bit enabled 0 to f

91 0x5a Unsigned Int Level1ErrMaskU Error mask, 1-Error bit enabled 10 to 1f

92 0x5b Unsigned Int Level1ErrMaskU Error mask, 1-Error bit enabled 0 to f

Instrument Error Summary

Detailed description of Modbus Register 12, Instrument Error Summary. This register is for information only. It provides a quick glance at the error status registers without reading additional registers. It is bitmapped and in an unsigned integer.

Number Hex Name Description

12 0x0c Unsigned Int Instrument Error Summary (bitmapped)

ErrorExists 0-Error

Alarm1Active 1-Alarm 1 is active

Alarm2Active 2-Alarm 2 is active

Spare 3 to 15

Following is a description of the bits, the causing condition, and steps to clear the error if possible.

Bit Position Error Description Causing Event Clearing Actions

0 ERROR EXISTS Enabled error from LEVEL4, LEVEL3, LEVEL2, or LEVEL1

exists. This is for information only and if set, user should check the ERROR-LEVEL registers in order to ascertain what actions (if any) are necessary.

1 Relay 1 Active This is a user deﬁned alarm. Its action is deﬁned by

Relay1Type: 0-Off, 1-Below Setpoint, 2-Above Setpoint, 3-Error alarm. If the Relay1Mode is set to type 1 and if Cl level falls below Relay1SetPoint then Relay1 is set and this bit is set.

If the Relay1Mode is set to type 2 and if Cl level rises above Relay1SetPoint then Relay1 is set, and this bit is set.

If the Relay1Mode is set to type 3 and if an error of type 1, 2, 3 or 4 is set then Relay1 is set, and this bit is set.

2 Relay 2 Active Identical to actions for Relay 1 This bit is automatically

This bit is automatically cleared when all other errors are cleared.

This bit is automatically cleared when alarm condition no longer exists.

cleared when alarm condition no longer exists.

Instrument Level 4 Errors

Detailed description of Modbus Register 13 & 14, Instrument level 4 Errors. Instrument level 4 errors are warnings. The errors conveyed are for informational purposes and usually do not result in erroneous readings. The servicing of these errors can usually be put off until the next service interval.

Number Hex Name Description

13, 14 0x0d Long Int Level4Error Instrument warning, readings OK

Spare 0-Spare

Spare 1-Spare

LiqLvlSensErr 2-Liquid level sensor

ReadingError 3-Reading error (Err Single A/D reading)

ReagentOld 4-Reagent is old and needs replaced (REPL)

TempError 5-Temp error

Spare 6 to 31

Instrument Level 4 Errors, cont’d

Following is a description of the bits, the causing condition, and steps to clear the error if possible.

Bit Position Error Description Causing Event Clearing Actions

0 to 1 Spare The liquid level sensor (if installed) has triggered,

indicating a need to check the reagent levels.

2 Liquid Level Sensor

3 Reading Error A single A/D reading was in error. Smoothing and

error rejection routines in the area integration math routines compensate for single errors, however, if such errors are continuous, such an error indicates a more serious problem.

4 Reagent is old Reagent needs to be replaced. Replace reagent and

5 Temp error An error occurred in the temperature circuit. Either

the sensor is bad or the cold plate has risen above

27.5 degrees. The reagents last longer if cooled, so a temporary loss of temperature control is not problematic, however, if such errors are continuous, such an error indicates a more serious problem.

This bit is automatically cleared when the liquid level sensors detect the presence of reagents.

This bit is automatically cleared during the next sample cycle.

If such errors are continuous, the error is escalated in severity.

cycle power.

This bit is automatically cleared during the next sample cycle.

If such errors are continuous, the error is escalated in severity.

If error continues, check to make sure thermistor is plugged in. Otherwise, check thermistor open or damaged.

6 to 14 Spare

15 Locked-Out User initiated lock-out. Cleared when put back

in service.

16 to 31 Spare

Instrument Level 3 Errors

Detailed description of MODBUS Register 15 & 16, Instrument Level 3 Errors. Instrument level 3 errors are low priority errors. The errors may result in erroneous readings and the current chlorine reading should be discarded. The error may be resolved during the next sample.

Number Hex Name Description

15, 16 0x0f Long Int Level3Error Instrument error, readings questionable

Spare 0-Spare

CalError 1-Calibration error

Spare 2 to 8

TempErrors 9-Continued temp error

Spare A-f spare

Following is a description of the bits, the causing condition, and steps to clear the error if possible.

Bit Position Error Description Causing Event Clearing Actions

0 Calibration Error Calculated slope does not ﬁt

within error band of linearization previously run.

Possible causes: Linearization not performed or out-of-date, dirty cell, old reagents, reagents not pumping, calibration standard not fresh or mixed incorrectly.

1 Linearization Error Calculated slope out of range or

area counts between Hi-Med-Lo linearization samples appear to be out of order.

A second possible cause would be if the reagents were missing or ineffective during linearization.

2 AutoGain Error System unable to complete

AutoGain.

3 to 8 Spare

9 Continued Temp Error An error occurred in the

temperature circuit or the system is not cooling. The reagents last longer if cooled, so a temporary loss of temperature control is not problematic, however, if such errors are continuous, such an error indicates a more serious problem.

10 to 31 Spare

Check that linearization current, cell is clean,reagents are fresh and pumping, calibration standards fresh and mixed correctly.

Rerun calibration.

Re-prime reagents, check cal standards, and re-run linearization.

Linearization is usually performed at the factory, however, instructions for ﬁeld linearization are found in the manual.

If problem persists then suspect reagent tubing or more serious instrument problem.

Clean cell, check for obstructions, and check for lack of response on one of the channels.

If error continues, check to make sure thermistor is plugged in. Otherwise, check thermistor open or damaged.

Suspect instrument failure.

Instrument Level 2 Errors

Detailed description of Modbus Register 17 & 18, Instrument Level 2 Errors. Instrument level 2 errors are severe. These errors require immediate service.

Number Hex Name Description

17, 18 0x11 Long Int Level2Error Instrument failure, requires intervention

PostError 1- Post error (POST)

Spare 1 to 15

Following is a description of the bits, the causing condition, and steps to clear the error if possible.

Bit Position Error Description Causing Event Clearing Actions

0 POST (Power-on Self-test) The errors contained in this section are caused

by a failure of the instrument during poweron self-test. This is usually due to an error in hooking up the instrument, a connector missing internally, or due to a hardware failure.

1 Continued Reading Error If single A/D reading is in error the math can

handle the problem, but in this case, the A/D is continually out-of-range.

In this case, there were too many erroneous A/D readings to get a stable reading so the sample bust be discarded.

Check wiring (internal and external) and try again.

If the problem persists, suspect a hardware failure.

A series of bubbles could cause this problem. If this is the problem, the problem will reset at the beginning of the next sample.

2 Reagent Replacement

Overdue

3 to 31 Spare

Gain setting may be set wrong. Photodetector may be defective. LED may be set too bright. LED may be off.

Reagent is very old and is likely causing erroneous results.

Gain setting may be set wrong. Photodetector may be defective. LED may be set too bright. LED may be off.

Replace reagent and cycle power.

Instrument Level 1 Errors

Detailed description of MODBUS Register 19 & 20, Instrument Level 1 Errors. Instrument level 1 errors require the instrument to be taken ofﬂine. The errors described in this section are not resettable nor are they serviceable in the ﬁeld.

Number Hex Name Description

19, 20 0x13 Long Int Level1Error Instrument failure, take ofﬂine

Spare 0-Spare

A/D error 1-A/D continued failure

FlashReadErr 2-Continued ﬂash data read

FlashWritErr 3-Continued ﬂash data write

Spare 4-Spare

Spare 5-Spare

StackOvﬂ 6-S/W stack overﬂow

Spare 7-Spare

Following is a description of the bits, the causing condition, and steps to clear the error if possible.

Bit Position Error Description Causing Event Clearing Actions

0 Spare

1 A/D Continued Failure Hardware failure

2 Flash data read error Hardware failure

3 Flash data write error Hardware failure

4 Firmware General Firmware Failure

5 Math Error Firmware Failure

6 Stack Overﬂow Firmware Failure

7 to 31 Spare

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