Hach-Lange 9187 sc User Manual
DOC023.52.00051
9184sc Chlorine
9185sc Ozone and
9187sc Chlorine Dioxide Analyzer
USER MANUAL
02/2013 Edition 2A
© HACH LANGE GmbH, 2005, 2013. All rights reserved. Printed in Germany.
Table of Contents
Section 1 Specifications ......................................................................................................................................... 3
Section 2 General Information ...............................................................................................................................5
2.1 Safety Information ...............................................................................................................................................5
2.1.1 Use of Hazard Information ......................................................................................................................... 5
2.1.2 Precautionary Labels ................................................................................................................................. 5
2.2 General Sensor Information ................................................................................................................................ 6
2.3 Theory of Operation............................................................................................................................................. 6
Section 3 Installation............................................................................................................................................... 9
3.1 Mounting the Analyzer.........................................................................................................................................9
3.1.1 Environmental Considerations ................................................................................................................... 9
3.1.2 General Installation Considerations .........................................................................................................10
3.2 Choosing the Sample Line Location..................................................................................................................10
3.3 Connecting the Sample Stream.........................................................................................................................10
3.4 Connecting the Waste Stream........................................................................................................................... 11
3.5 Assembling and Placing the Probe.................................................................................................................... 11
3.5.1 Probe Assembly....................................................................................................................................... 11
3.5.1.1 Placing the Probe Into the Flow Thru Assembly............................................................................. 13
3.5.1.2 Using the Optional pH (9184sc TFC only)......................................................................................15
3.6 Connecting the Sensor with the sc Controller ...................................................................................................15
3.6.1 Attaching a sc Sensor with a Quick-connect Fitting .................................................................................15
3.7 Instrument and Controller Startup...................................................................................................................... 16
Section 4 Operation...............................................................................................................................................19
4.1 Using the sc Controller ......................................................................................................................................19
4.2 Sensor Data Logging.........................................................................................................................................19
4.3 Sensor Setup..................................................................................................................................................... 19
4.3.1 Changing the Sensor Name and Parameter Selection ............................................................................19
4.4 Sensor Diagnostics Menu.................................................................................................................................. 20
4.5 Sensor Setup Menu........................................................................................................................................... 20
4.6 Calibration ......................................................................................................................................................... 21
4.6.1 Temperature Sensor Calibration .............................................................................................................. 21
4.6.1.1 Adjusting the Temperature ............................................................................................................. 22
4.6.2 pH (9184sc T.F.C. or 9184sc Chlorine + Acid only) ................................................................................. 22
4.6.2.1 Process pH 1 Point Sample............................................................................................................22
4.6.2.2 Process pH 2 Point Sample............................................................................................................23
4.6.3 Concentration Calibration ........................................................................................................................23
4.6.3.1 Process Calibration ........................................................................................................................ 24
4.6.4 Zero Calibration .......................................................................................................................................24
4.6.4.1 Chemical Zero Calibration ..............................................................................................................25
4.6.5 Calibration Configuration .........................................................................................................................25
4.7 Set Calibration Defaults .................................................................................................................................... 25
Section 5 Maintenance ..........................................................................................................................................27
5.1 Maintenance Schedule ......................................................................................................................................27
5.2 Scheduled Maintenance....................................................................................................................................27
5.2.1 Replacing the Membrane......................................................................................................................... 27
5.2.2 Replacing the Tubing ............................................................................................................................... 28
5.2.3 Replacing the Electrolyte .........................................................................................................................28
5.2.4 Replacing the pH Electrode (9184sc only)...............................................................................................28
1
Table of Contents
Section 6 Troubleshooting ................................................................................................................................... 29
6.1 Error Messages................................................................................................................................................. 29
6.2 Warning Messages ........................................................................................................................................... 29
Section 7 Replacement Parts and Accessories ................................................................................................. 31
7.1 Replacement Parts, Sensor Only...................................................................................................................... 31
7.2 Replacement Parts............................................................................................................................................ 31
7.3 Optional Accessories ........................................................................................................................................ 31
7.4 Extension Cables .............................................................................................................................................. 32
Section 8 Contact.................................................................................................................................................. 33
Section 9 Warranty, liability and complaints ...................................................................................................... 35
Appendix A 9184sc Theory of Operation............................................................................................................ 37
A.1 Theory of Operation ................................................................................................................................... 37
A.1.1 Principle of Operation ....................................................................................................................... 37
Appendix B 9185sc Theory of Operation............................................................................................................ 39
B.1 Theory of Operation ................................................................................................................................... 39
B.1.1 Principle of Operation ....................................................................................................................... 39
Appendix C 9187sc Theory of Operation............................................................................................................ 41
C.1 Theory of Operation ................................................................................................................................... 41
C.1.1 Principle of Operation ....................................................................................................................... 41
Appendix D Modbus Register Information ......................................................................................................... 43
2
Section 1 Specifications
Specifications are subject to change without notice
General
Mounting Flat, vertical surface such as a wall, panel, stand, etc.
Analyzer Dimensions 10.63 x 9.84 in. (270 x 250 mm)
Analyzer Weight 6.5 kg (14.3 lb)
Materials Electrode: gold cathode/silver anode; probe body: PVC; measuring cell: acrylic
Sample Requirements
Sample Flow Rate to Analyzer Flow rate should allow for 14 L/hr minimum
Minimum Inlet Pressure to
Instrument
Minimum Flow Rate 14 L/hr auto-regulated by flow thru cell
Pressure Range 0.1–2 bar (1.4–28 psi) influent; flow cell pressure will be the atmospheric pressure
Sample Temperature Range +2–45 °C (35.6–113 °F)
Temperature Compensation Automatic over the sample Temperature Range
Sample pH 4 to 8 (acidification unit available for >8 pH)
Sample Inlet Tubing: at
instrument
Drain Fitting ½ in. ID (supplied)
Application Sample Clean water
0.1–2 bar (1.4–28 psi)
¼ in. OD
Electrical
Power Consumption 12 V, 1.5 Watts provided by sc controller
Performance
9184sc 9185sc 9187sc
Measurement Range 0–20 ppm (0–20 mg/L) HOCl 0–2 ppm (0–2 mg/L) O
Detection Limit 5 ppb (0.005 mg/L) HOCl 5 ppb (0.005 mg/L) O
Accuracy
Standard Deviation 0.7 % 1.0 % 1.5 %
Interference
Repeatability ±10 ppb (0.01 mg/L) or ±5 %, whichever is greater at a pH < 7.5
Response Time 90 % < T=90 seconds
Measurement Interval Continuous
Measurement Technology Amperometric/Membrane (electrode, membrane, electrolyte)
Calibration
Calibration Interval 2 months for typical application
Maintenance
Maintenance Interval,
Measurement Cell
Maintenance Interval, pH 1 to 1.5 years for typical operation
2 % or ±10 ppb HOCl,
whichever is greater
No interference from
chloramines.
Ozone and chlorine dioxide
interfere with measurement.
Electrical zero or chemical zero with dechlorinated or deozoned water; calibration of the
slope by comparison with a laboratory instrument; pH calibration (9184sc only) with Single or
Two Point using standards or comparison with lab method with the process sample.
6 months for the membrane and electrolyte for typical operation (3 to 12 month range)
3 % or ±10 ppb O3,
whichever is greater
No interference from
chlorine, chloramines,
hydrogen peroxide, bromine,
or chlorine dioxide.
3
3
0–2 ppm (0–2 mg/L) ClO
10 ppb (0.01 mg/L) ClO
5 % or ±10 ppb ClO2,
whichever is greater
None
2
2
3
Specifications
Environmental (sc Analyzer)
Enclosure IP66/NEMA 4X
Storage Temperature Range –20 to 60 °C (–4 to 140 °F)
Operating Temperature Range 0 to 45 °C (32 to 113 °F)
Relative Humidity 10 to 90% non-condensing
Operating Humidity 0 to 90% non-condensing
Compliance
The sc analyzer and sensor combination are:
CE marked and declared by HACH LANGE to the applicable EU Safety and EMC Directives.
4
Section 2 General Information
2.1 Safety Information
Please read this entire manual before unpacking, setting up, or operating this equipment.
Pay attention to all danger and caution statements. Failure to do so could result in serious
injury to the operator or damage to the equipment.
To ensure that the protection provided by this equipment is not impaired, do not use or
install this equipment in any manner other than that specified in this
2.1.1 Use of Hazard Information
manual.
DANGER
Indicates a potentially or imminently hazardous situation which, if not av oided,
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or moderate
injury.
Important Note: Information that requires special emphasis.
Note: Information that supplements points in the main text.
2.1.2 Precautionary Labels
Read all labels and tags attached to the instrument. Personal injury or damage to the
instrument could occur if not
This symbol, if noted on the instrument, references the instruction manual for operation
and/or
safety information.
Electrical equipment marked with this symbol may not be disposed of in European public disposal
systems after 12 August of 2005. In conformity with European local and national regulations, 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 all electrical products (marked or unmarked) which are sup plied or produced by Hach-Lange, please
contact the local Hach-Lange sales office for instructions for proper disposal.
observed
This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock and/or
electrocution exists.
This symbol, when noted on the product, identifies the location of a fuse or current limiting device.
This symbol, when noted on the product, indicates that the marked item can be hot and should not be
touched without care.
This symbol, when noted on the product, indicates the presence of devices sensitive to Electro-Static
Discharge and indicates that care must be taken to prevent damage to them.
This symbol, when noted on the product, identifies a risk of chemical harm and indicates that only
individuals qualified and trained to work with chemicals should handle chemicals or perform maintenance
on chemical delivery systems associated with the equipment.
This symbol, if noted on the product, indicates the need for protective eye wear.
This symbol, when noted on the product, identifies the location of the connection for Protective Earth
(ground).
5
General Information
2.2 General Sensor Information
The system consists of a controller with an integrated display, and a sensor (Figure 2).
The choice can be made to use this instrument with the specifications and processes of
the 9184sc, 9185sc, or 9187sc sensor. This is determined by selecting the parameter
during the initial sensor setup and the type of sensor being used. See
on page 19.
2.3 Theory of Operation
Refer to the following Appendices.
• Appendix A 9184sc Theory of Operation on page 37
• Appendix B 9185sc Theory of Operation on page 39
• Appendix C 9187sc Theory of Operation on page 41
Figure 1 Sensor Cell Operation*
4.3 Sensor Setup
1. Membrane 7. Electrolyte
2. Membrane Holder 8. Probe Body
3. Anode 9. Cathode
4. Electrolyte Filling Plug
5. Electrolyte Filling Hole 11. Sample
6. Assembled Electrode
1
A small hole exists in the plug to allow the instrument to maintain a consistent pressure regardless of changes in atmospheric
pressure.
*See Replacement Parts and Accessories on page 31.
1
10. Membrane/Interface Sample
6
Figure 2 General Instrument Schematic**
General Information
1. pH Probe (9184sc only) 5. Gateway (behind Mounting Plate)
2. pH Cell Cap (9184sc only) 6. Connector
3. Connector 7. Cell Cap
4. Cable to Controller 8. Probe Body
**See Replacement Parts and Accessories on page 31.
7
General Information
8
Section 3 Installation
DANGER
Only qualified personnel should conduct the tasks described in this section of the
manual.
3.1 Mounting the Analyzer
The analyzer is designed to be mounted on a flat, vertical surface such as a wall, panel,
stand, etc. The instrument must be level.
Locate the sensor as close to the sampling point as possible. The shorter the distance
traveled by the sample, the faster the instrument can respond and indicate changes in
sample concentration. The 152 mm (6-inch) clearance at the bottom of the instrument is
not necessary if using the accessories. Refer to
connection instructions.
Figure 3 Analyzer Dimensions
section 3.3 on page 10 for sample stream
Note: The optional pH probe is used for the 9184sc TFC only.
3.1.1 Environmental Considerations
The instrument enclosure is IP66/NEMA 4X with an ambient temperature between 0 and
45 °C (32 to 113 °F), see
Specifications on page 3 for more information.
9
Installation
Poor
Sediment (Typical)
Air (Typical)
Poor
Good Best
3.1.2 General Installation Considerations
• Place the analyzer in an accessible location.
• Keep the sample tubing as short as possible to minimize lag time.
• Do not place the probe next to a heat source.
• Ensure that there is no air intrusion into the sample supply line.
• Sample pressure must be sufficient to ensure a continuous supply to the probe. A
minimum pressure of approximately 0.1–2 bar (1.4–28 psi) is sufficient to provide the
correct flow rate. A stable flow rate of 200–250 mL/min is critical. Erratic flow rates will
create erratic measurements.
3.2 Choosing the Sample Line Location
Note: Erratic readings will occur if a sample is drawn from a location that is too close to points of
chemical additions to the process stream, if mixing is inadequate, or if the chemical reaction is
incomplete.
Selecting a good, representative sampling point is important for optimum instrument
performance (
the entire system.
Figure 4). The sample analyzed must be representative of the condition of
Install sample line taps into the side of larger process pipes to minimize the chance of
ingesting sediment from the pipe line bottom or air bubbles from the top. A tap projecting
into the horizontal center of the pipe is ideal.
Figure 4 Sample Line Location in the Process Stream
3.3 Connecting the Sample Stream
Sample inlet and drain connections are made on the Analyzer Flow Cell. Refer to
Specifications on page 3 for flow rates.
10
The sample inlet requires 6.3 mm (¼ in.) OD tubing. The connections are made with a
quick connect fitting. Use the 6.3 mm (¼ in.) supplied tubing adapter in the electrode kit.
Cut all tubing so the ends are squarely cut and not angled.
1. Push the tubing into the influent of the flow analyzer (Figure 5).
2. Push the supplied drain tubing onto the nipple beside the influent.
3. Ensure there are no bends in the tubing to prevent back pressure.
3.4 Connecting the Waste Stream
Connect the waste stream using the supplied ½-inch ID tubing. Be sure the drain is free
flowing (free of obstructions) so that the waste stream does not cause unnecessary
back-pressure or overflow.
Note: Waste from this instrument must go to the drain.
3.5 Assembling and Placing the Probe
Refer to Figure 5 for a detailed description of the probe components.
Figure 5 Probe Components*
Installation
1. Electrode Retaining Ring
2. Measurement Electrode
3. Probe Body
4. Filling Screw
Note: A small hole exists in the plug to allow the instrument to maintain a consistent pressure regardless of changes in
atmopsheric pressure.
5. Flange
6. Probe Body Washer
7. Pre-Mounted Membrane (set of four); Ensure the properly marked membrane is chosen (e.g. CL will appear on the side
for a Chlorine membrane).
3.5.1 Probe Assembly
CAUTION
To familiarize yourself with handling precautions, dangers and emergency
procedures, always review the Material Safety Data Sheets prior to handling
containers, reservoirs, and delivery systems that contain chemical reagents and
standards. Protective eye wear is always recommended when contact with
chemicals is possible.
1. Screw the membrane cap onto the probe body (Figure 6 and Figure 7). Be careful not
2. Remove the filling screw from the probe body.
to touch or damage the membrane surface.
3. Visually inspect the electrolyte to ensure that there are no particles or other
impurities present.
4. Using the supplied syringe, fill the probe body with ~7 mL of electrolyte.
5. Slowly insert the electrode into the probe body. Do not use force when inserting into
the probe body.
*See Replacement Parts and Accessories on page 31.
11
Installation
6. Tap the side of the probe to make sure that no air bubbles are trapped in the probe
body when inserting the electrode.
7. Screw on the retaining ring. Some electrolyte may spill out the top of the body.
8. Insert the filling screw.
9. Wash hands and rinse sensor to remove excess electrolyte.
10. Place the probe into the Flow Thru Assembly.
Figure 6 Probe Assembly
1. Membrane Cap to Probe Body 4. Seat Electrode into Probe Body.
2. Syringe Filled with 5 mL Electrolyte 5. Secure Electrode with Retaining Ring.
1
3. Inject Electrolyte into Electrode Body. 6. Insert Filling Screw
1
A small hole is in the plug so the instrument can maintain consistent pressure regardless of atmospheric pressure changes.
.
12
Figure 7 Tightening the Membrane
Installation
1. Displays the correct way to tighten the membrane. It is
snug but not overtightened.
2. Displays the incorrect way to tighten the membrane. It is
too loose and the internal electrolyte could leak.
3.5.1.1 Placing the Probe Into the Flow Thru Assembly
1. Remove the probe retaining nut (Figure 8).
2. Insert the newly assembled probe into the right chamber of the flow cell.
3. Gently screw the retaining nut back on, ensuring it is snug but do not overtighten.
4. Attach the keyed electrode.
13
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