Hach-Lange POLYMETRON 9526 User Manual
DOC023.52.93068
Polymetron 9526 Conductivity
Certification System
11/2013, Edition 3
User Manual
Table of Contents
Additional information.............................................................................................3
Specifications..............................................................................................................3
General information..................................................................................................5
Safety information........................................................................................................5
Use of hazard information....................................................................................5
Precautionary labels ............................................................................................6
EMC compliance statement (Korea)..................................................................... 6
Certification........................................................................................................... 6
Product components....................................................................................................7
Accessories..........................................................................................................7
Product overview.........................................................................................................7
Accuracy and benefits..........................................................................................8
Accurate electrical calibration........................................................................ 8
Accurate temperature measurement.............................................................8
Accurate determination of the cell constant..................................................9
Optimized design........................................................................................... 9
Calibration guidelines....................................................................................9
Installation.....................................................................................................................9
Hydraulic connections................................................................................................ 10
Sample IN connection........................................................................................10
Sample OUT connection....................................................................................10
Installation in-line.......................................................................................................10
Installation off-line......................................................................................................11
Mains connection.......................................................................................................12
Analog outputs...........................................................................................................13
Electrical conductivity calibration connection............................................................. 13
Install a Secure Digital (SD) memory card ................................................................ 13
Startup........................................................................................................................... 14
User interface and navigation............................................................................14
User interface............................................................................................................14
Display.......................................................................................................................15
Additional display formats................................................................................... 16
Graphical display................................................................................................16
System startup..........................................................................................................17
Set the language, date and time for the first time .....................................................17
Controller configuration information...........................................................................17
Using the secure digital memory (SD) card...............................................................19
Updating software............................................................................................... 19
Save data and event logs with SD cards............................................................19
Access data and event log files on the SD card.................................................20
Firmware updates with SD cards........................................................................ 21
Backup settings to an SD card...........................................................................21
Restore settings to the controller........................................................................21
Transfer settings to another device....................................................................21
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Table of Contents
Operation.....................................................................................................................22
Configure the sensor under test................................................................................22
Calibration.................................................................................................................. 23
About sensor calibration.....................................................................................23
Calibration process.............................................................................................23
K Calculation......................................................................................................24
Maintenance...............................................................................................................24
Cleaning and decontamination..................................................................................24
Clean the sensor........................................................................................................ 24
Fuse replacement......................................................................................................25
Battery replacement................................................................................................... 25
Troubleshooting.......................................................................................................25
Test and maintenance menu.....................................................................................25
Sensor diagnostic and test menu..............................................................................26
Warning and error conditions..................................................................................... 26
Warning list.........................................................................................................27
Error list..............................................................................................................28
Replacement parts and accessories...............................................................28
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Additional information
Additional information is available on the manufacturer's website.
Specifications
Specifications are subject to change without notice.
Analyzer
Specification Details
Dimensions Height: 450 mm; Width: 250 mm; Depth: 460 mm
Weight 7 kg (15.4 lb)
Casing protection IP 65 / NEMA4X
Standard version: 100-240 VAC 50/60 Hz
Power supply
Sample flow rate 20 liters/hour minimum
Sample tubing
Connections
Ambient temperature -20 to 60 °C (-4 to 140 °F)
Maximum temperature 100 °C (at atmospheric pressure)
Maximum pressure 10 bar at ambient temperature
Relative humidity 10—90%
Precision
Measurement range
Display resolution 0.001 μS/cm or 0.1 MΩ.cm
Outputs
Certifications EN 61326-1: 2006; EN 61010-1: 2010
Low voltage version: 13-30 VAC 50/60 Hz, 18-42 VDC
Consumption: 25 VA
Measurement category: I (overvoltage less than 1,500 V)
Sample inlet and outlet: Diameter 8 mm (or 5/16'') semi-rigid tubing. We recommend the
use of PE tubing if sample temperature is inferior to 70 °C, and PTFE if superior to 70 °C
Power supply: Use the connector provided in the drawer
Analog output: Use the recommended POLYMETRON cable
Conductivity: ± 2% of the displayed value
Temperature: ± 0.2 °C
Conductivity: 0.01 μS/cm to 200 μS/cm
Resistivity: 100 MΩ.cm to 5 kΩ.cm
Temperature: -20 to 200 °C (-4 to 392 °F)
Analog output (temperature, conductivity/resistivity): 2 × 0/4-20 mA (linear, bilinear,
logarithmic) ± 0.1 mA
Alarms: 2 × thresholds or limits according to USP
Sensor
Specification Details
Sensor body material Black PSU
Conductivity electrodes, internal and external Stainless steel 316L
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Specification Details
Cell constant K 0.01 (cm-1)
Conductivity range 0.01—200 μS.cm-1; Resistivity range: 5k Ω.cm—100 MΩ.cm
Maximum pressure 10 bar
Maximum temperature 125 °C (257 °F)
Accuracy < 2%
Temperature response < 30 seconds
Insulator PSU
Connector Glass polyester (IP65)
Controller
Specification Details
Component description Microprocessor-controlled and menu-driven controller that operates the sensor and
Operating temperature -20 to 60 ºC (-4 to 140 ºF); 95% relative humidity, non-condensing with sensor load
Storage temperature -20 to 70 ºC (-4 to 158 ºF); 95% relative humidity, non-condensing
Enclosure
Power requirements AC powered controller: 100-240 VAC ±10%, 50/60 Hz; Power 50 VA with 7 W
Altitude requirements Standard 2000 m (6562 ft) ASL (Above Sea Level)
Pollution
degree/Installation
category
Outputs Two analog (0-20 mA or 4-20 mA) outputs. Each analog output can be assigned to
Relays Four SPDT, user-configured contacts, rated 250 VAC, 5 Amp resistive maximum for
Dimensions ½ DIN—144 x 144 x 180.9 mm (5.7 x 5.7 x 7.12 in.)
Weight 1.7 kg (3.75 lb)
Compliance information2CE approved (with all sensor types). Listed for use in general locations to UL and
Digital communication Optional Modbus, RS232/RS485, Profibus DPV1 or HART network connection for
1
displays measured values.
<7 W; -20 to 50 ºC (-4 to 104 ºF) with sensor load <28 W
NEMA 4X/IP66 metal enclosure with a corrosion-resistant finish
sensor/network module load, 100 VA with 28 W sensor/network module load
(optional Modbus, RS232/RS485, Profibus DPV1 or HART network connection).
24 VDC powered controller: 24 VDC—15%, + 20%; Power 15 W with 7 W
sensor/network module load, 40 W with 28 W sensor/network module load (optional
Modbus, RS232/RS485, Profibus DPV1 or HART network connection).
Polution Degree 2; Installation Category II
represent a measured parameter such as pH, temperature, flow or calculated
values. Optional module supplies three additional analog outputs (5 total).
the AC powered controller and 24 VDC, 5A resistive maximum for the DC powered
controller. Relays are designed for connection to AC Mains circuits (i.e., whenever
the controller is operated with 115 - 240 VAC power) or DC circuits (i.e., whenever
the controller is operated with 24 VDC power).
CSA safety standards by ETL (with all sensor types).
Certain AC mains powered models are listed for use in general safety locations to
UL and CSA safety standards by Underwriters Laboratories (with all sensor types).
data transmission
4 English
Specification Details
Data logging Secure Digital Card (32 GB maximum) or special RS232 cable connector for data
Warranty 2 years
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Units that have the Underwriters Laboratories (UL) certification are intended for indoor use only and do not
have a NEMA 4X/IP66 rating.
2
DC powered units are not listed by UL.
logging and performing software updates. The controller will keep approximately
20,000 data points per sensor.
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
Safety information
N O T I C E
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,
without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent
permitted under applicable law. The user is solely responsible to identify critical application risks and install
appropriate mechanisms to protect processes during a possible equipment malfunction.
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.
Make sure 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 manual.
Use of hazard information
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
D A N G E R
W A R N I N G
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious
injury.
Indicates a potentially hazardous situation that may result in minor or moderate injury.
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special
emphasis.
C A U T I O N
N O T I C E
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Precautionary labels
Read all labels and tags attached to the product. Personal injury or damage to the product could
occur if not observed. A symbol on the instrument is referenced in the manual with a precautionary
statement.
This symbol, when noted on a product, indicates a potential hazard which could cause serious
personal injury and/or death. The user should reference this instruction manual for operation and/or
safety information.
This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock
and/or electrocution exists and indicates that only individuals qualified to work with hazardous
voltages should open the enclosure or remove the barrier.
This symbol, when noted on the product, indicates the presence of devices sensitive to electrostatic
discharge and indicates that care must be taken to prevent damage to them.
This symbol, when noted on a product, indicates the instrument is connected to alternate current.
Electrical equipment marked with this symbol may not be disposed of in European public disposal
systems. In conformity with European local and national regulations, European electrical equipment
users must now return old or end-of-life equipment to the manufacturer 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.
Products marked with this symbol indicates that the product contains toxic or hazardous substances
or elements. The number inside the symbol indicates the environmental protection use period in
years.
Products marked with this symbol indicates that the product conforms to relevant South Korean
EMC standards.
EMC compliance statement (Korea)
Type of equipment Additional information
A 급 기기
( 업무용 방송통신기자재 )
Class A equipment
(Industrial Broadcasting and Communication
Equipment)
이 기기는 업무용 (A 급 ) 전자파적합기기로서 판매자 또
는 사용자는 이 점을 주의하시기 바라며, 가정외의 지역
에서 사용하는 것을 목적으로 합니다.
This equipment meets Industrial (Class A) EMC
requirements. This equipment is for use in industrial
environments only.
Certification
Canadian Radio Interference-Causing Equipment Regulation, IECS-003, Class A:
Supporting test records reside with the manufacturer.
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing
Equipment Regulations.
FCC Part 15, Class "A" Limits
Supporting test records reside with the manufacturer. The device complies with Part 15 of the FCC
Rules. Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that may cause
undesired operation.
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English
Changes or modifications to this equipment not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment. This equipment has been tested
and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user will be required to
correct the interference at their expense. The following techniques can be used to reduce
interference problems:
1. Disconnect the equipment from its power source to verify that it is or is not the source of the
interference.
2. If the equipment is connected to the same outlet as the device experiencing interference, connect
the equipment to a different outlet.
3. Move the equipment away from the device receiving the interference.
4. Reposition the receiving antenna for the device receiving the interference.
5. Try combinations of the above.
Product components
Make sure that all components have been received. If any items are missing or damaged, contact the
manufacturer or a sales representative immediately.
Accessories
The following accessories are provided with the product and are located in the drawer:
• Laminated quick reference guide
• User manual
• Certification of the product factory calibration
• Socket for mains power connection
• Tool for removing plugs and sample tubes
• 2 x DN8 to DN6 reduction sleeves to connect DN6 tubes to the product
• 2 plugs for the IN and OUT sockets to prevent measurement cell contamination
Product overview
The conductivity certification system is a portable test bed for rapidly and accurately calibrating and
verifying in-line conductivity measurement loops through direct use of the process sample and
comparison with our reference system.
It is particularly appropriate for pure and ultra pure water applications with weak conducting solutions
for which there is no reliable calibration solution. Indeed, any solution whose conductivity is inferior to
100 μs/cm is not stable in contact with air, as the dissolution of the CO2 from ambient air leads to an
increase in the order of 1 to 2 μS/cm. It is therefore impossible to calibrate a conductivity loop
dedicated to pure water measurements of <10 μS/cm using a calibration solution of known similar
conductivity (KCl solution).
Any deviation observed between the value displayed by the system and that displayed by the
conductivity loop under validation/calibration can be due to several factors including:
• Fouling of the conductivity sensor under test due to the accumulation of insulating layers on the
electrode surface leading to a change of the cell constant
• Sampling issues such as poor sensor installation, insufficient immersion, air bubbles, etc.
• Incorrect controller resistivity/conductivity and/or temperature input calibration
• Long cables leading to capacitive effects not taken into account during controller electronic
calibration
English
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Figure 1 Front and rear view
1 Controller 6 IP 67 socket for electric power
supply
2 Protective hood 7 Lead seal 12 Sample outlet
3 Accessory drawer 8 Waterproof feet 13 Analog output cable (option)
4 IP 67 socket for analog output 9 Product type label 14 Cable to external controller
5 IP 67 socket for calibration 10 Calibration label 15 Power supply connector
11 Sample inlet
The unit is made up of a conductivity controller (1) and a flow chamber containing a high precision
conductivity sensor, all contained in a high resistant ABS casing. A hood (3) protects the display
panel whose backlit surface provides optimum visibility. A drawer (7) is used for storing accessories
and documentation. The unit should be placed on a flat surface, preferably in a clean and dry
environment.
Accuracy and benefits
The system is a certified standard guaranteeing a high degree of measurement accuracy conforming
to all the required standards used in pure water conductivity measurements (ASTM D 1125, D
5391 and USP).
Accurate electrical calibration
The measurement of conductivity requires the use of a high frequency current to minimize electrolytic
reactions at the surface of the electrodes. In addition, the use of a long cables for measurements can
generate a capacitance causing errors when measuring the value of a resistance.
The Polymetron 9526 avoids this problem by performing an electrical calibration at the end of the
product's conductivity sensor cable using a certified electrical resistance (precision ± 0.1%).
Accurate temperature measurement
Accurate temperature measurement is essential in ultra pure water as the variation in conductivity is
very high (ratio of around 5.2%/°C). The Polymetron 9526 uses a class "A" temperature sensor
mounted at the end of the internal electrode. Ambient temperature has no effect as the sensor and
internal flow chamber are thermally insulated.
To eliminate any electrical resistance, an electrical calibration at the end of the cable using precision
resistors has been performed in our factory . A calibration is then performed with a certified
thermometer on the whole loop at a temperature of approximately 20 °C. The temperature
measurement is therefore fully calibrated.
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English
The product also uses an accurate temperature compensation algorithm taking account of the pure
water dissociation and of any components such as NaCl or HCl. By default, the NaCl curve is
activated into the system as it is representative of the majority of impurities present in pure water.
Finally, in order to comply with the USP standard, it is possible to easily deactivate any temperature
compensation curve during operation. Conductivity and resistivity measurements are then no longer
referenced to a given temperature (25 °C in general).
Accurate determination of the cell constant
The conductivity of pure water should be accurately identified. As there are no reliable low
conductivity calibration solutions, the measurement of pure water conductivity must be performed by
comparison with a reference system in compliance with the prevailing standards.
The conductivity sensor integrated in the Polymetron 9526 has a cell constant K that has been
accurately (± 2%) defined in our factory, with water having a conductivity < 10 μS/cm, and by
comparison with a reference conductivity sensor whose constant complies with the ASTM D
1125 standard (with NIST traceability by using a certified precision thermometer).
The 9526 is therefore a reliable standard allowing the certification of other in-line sensors, when the
sample taken is representative of the process (flow rate, composition and temperature).
Optimized design
When starting the sampling, the sample tube, which is initially empty, may have some bubbles in it.
The same applies to the fluid that expands or heats up in the measurement cell. Air bubbles on the
electrode will reduce the active surface, leading to a non-representative low conductivity value (high
resistivity).
The 9526 flow chamber contains no protrusions or dead zones and has been designed to avoid air
bubble retention. Its conductivity sensor, used only for measurements in ultra pure water, has
electro-polished electrodes that also prevent the retention of air bubbles. A minimum flow rate of
20 L/h (ideally 60 L/h) is required in order to facilitate the extraction of air bubbles but also to obtain a
temperature that is identical to that of the process sample. It is important that the sampling system
does not pollute the sample being analyzed (no contamination with ambient air or impurities).
After being carefully calibrated in our facility, the 9526 is operated for 30 minutes in ultra pure water
(grade 1 and ISO 3696/BS3978) before being protected by plugs to avoid any contamination of the
conductivity cell. Sample connections are designed to meet the requirements of pure and ultra pure
water sampling.
Calibration guidelines
As stated in the ISO 100012-1 Standard, a time period should be defined between each system
calibration. Hach Lange can perform this operation in our facility to guarantee traceability to national
certified standards.
N O T I C E
In order to meet technical specifications as closely as possible, Hach Lange recommends calibrating the
9526 once a year in our facility to guarantee the validity of the certification for one year, if and only if, important
components of the unit have not been modified or accessed in any way. A system of seals is placed on each
component of the unit to validate this.
Installation
C A U T I O N
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
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