Hach Polymetron 9526 Basic User Manual

DOC023.98.93068

Polymetron 9526 Conductivity

Certification System

05/2015, Edition 4

Basic User Manual

Basishandbuch

Manuale dell'utente di base

Manuel d'utilisation de base

Manual básico del usuario

Manual básico do utilizador

基本用户手册

Basisgebruikershandleiding

Podstawowa instrukcja obsługi

Peruskäyttöohje

Начальное руководство пользователя

Temel Kullanıcı Kılavuzu

English..............................................................................................................................3

Deutsch.......................................................................................................................... 22

Italiano............................................................................................................................ 43

Français......................................................................................................................... 64

Español.......................................................................................................................... 85

Português.................................................................................................................... 106

中文............................................................................................................................... 126

Nederlands................................................................................................................. 144

Polski............................................................................................................................ 164

Suomi............................................................................................................................184

Русский........................................................................................................................203

Türkçe...........................................................................................................................225

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Table of contents

Specifications on page 3 Startup on page 13

General information on page 5 Maintenance on page 18

Installation on page 9 Troubleshooting on page 19

User interface and navigation on page 13

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

Power supply

Standard version: 100-240 VAC 50/60 Hz

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 flow rate 20 liters/hour minimum

Sample tubing

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

Connections

Power supply: Use the connector provided in the drawer

Analog output: Use the recommended POLYMETRON cable

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

Conductivity: ± 2% of the displayed value

Temperature: ± 0.2 °C

Measurement range

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)

Display resolution 0.001 μS/cm or 0.1 MΩ.cm

English 3

Specification Details

Outputs

Analog output (temperature, conductivity/resistivity): 2 × 0/4-20 mA (linear, bilinear,

logarithmic) ± 0.1 mA

Alarms: 2 × thresholds or limits according to USP

Certifications EN 61326-1: 2006; EN 61010-1: 2010

Sensor

Specification Details

Sensor body material Black PSU

Conductivity electrodes, internal and external Stainless steel 316L

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

displays measured values.

Operating temperature -20 to 60 ºC (-4 to 140 ºF); 95% relative humidity, non-condensing with sensor load

<7 W; -20 to 50 ºC (-4 to 104 ºF) with sensor load <28 W

Storage temperature -20 to 70 ºC (-4 to 158 ºF); 95% relative humidity, non-condensing

Enclosure

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NEMA 4X/IP66 metal enclosure with a corrosion-resistant finish

Power requirements AC powered controller: 100-240 VAC ±10%, 50/60 Hz; Power 50 VA with 7 W

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).

Altitude requirements Standard 2000 m (6562 ft) ASL (Above Sea Level)

Pollution

degree/Installation

category

Polution Degree 2; Installation Category II

Outputs Two analog (0-20 mA or 4-20 mA) outputs. Each analog output can be assigned to

represent a measured parameter such as pH, temperature, flow or calculated

values. Optional module supplies three additional analog outputs (5 total).

1

Units that have the Underwriters Laboratories (UL) certification are intended for indoor use only

and do not have a NEMA 4X/IP66 rating.

4 English

Specification Details

Relays Four SPDT, user-configured contacts, rated 250 VAC, 5 Amp resistive maximum for

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).

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 information

2

CE approved (with all sensor types). Listed for use in general locations to UL and

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).

Digital communication Optional Modbus, RS232/RS485, Profibus DPV1 or HART network connection for

data transmission

Data logging Secure Digital Card (32 GB maximum) or special RS232 cable connector for data

logging and performing software updates. The controller will keep approximately

20,000 data points per sensor.

Warranty 2 years

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

D A N G E R

Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.

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.

C A U T I O N

Indicates a potentially hazardous situation that may result in minor or moderate injury.

2

DC powered units are not listed by UL.

English 5

N O T I C E

Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special

emphasis.

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 )

이 기기는 업무용 (A 급 ) 전자파적합기기로서 판매자 또

는 사용자는 이 점을 주의하시기 바라며, 가정외의 지역

에서 사용하는 것을 목적으로 합니다.

Class A equipment

(Industrial Broadcasting and Communication

Equipment)

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:

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English

1. The equipment may not cause harmful interference.

2. The equipment must accept any interference received, including interference that may cause

undesired operation.

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 CO

2

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

English

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• Long cables leading to capacitive effects not taken into account during controller electronic

calibration

Figure 1 Front and rear view

1 Controller 6 IP 67 socket for electric power

supply

11 Sample inlet

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

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

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English

thermometer on the whole loop at a temperature of approximately 20 °C. The temperature

measurement is therefore fully calibrated.

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.

English 9

Hydraulic connections

N O T I C E

Sockets No. 4, 5 and 6 in Figure 1 on page 8 are all IP 67 therefore it is essential the connectors are tightened

firmly before using the instrument. In addition, it is also important to replace the protection caps on the sockets

after use.

The sample to be tested enters the instrument through the port labelled "IN" (No. 11 in Figure 1

on page 8). Its resistivity is measured by the conductivity sensor located inside the instrument. The

sample is then evacuated through the port labelled "OUT" (No. 12 in Figure 1 on page 8).

Note: For improved system operation, the sample supply and drain should ideally be located above the "IN" and

"OUT" ports.

Sample IN connection

1. Push the retaining collar on the "IN" port using the key provided.

2. Remove the plug while keeping pressure on the collar.

3. Make a clean cut (90°) at one end of an 8 mm semi-rigid tube (or 6 mm if you are using the D8 to

D6 reduction sleeve). Use a PTFE tube for temperatures above 70 °C.

4. Insert the tube into the "IN" port.

5. Connect the other end of the tube to the sample supply.

Sample OUT connection

1. Push the retaining collar on the "OUT" port using the key provided.

2. Remove the plug while keeping pressure on the collar.

3. Make a clean cut (90°) at one end of an 8 mm semi-rigid tube (or 6 mm if you are using the D8 to

D6 reduction sleeve). Use a PTFE tube for temperatures above 70 °C.

4. Insert the tube into the "OUT" port.

5. Connect the other end of the tube to the drain for an in-line installation or the flow chamber

containing the sensor being tested for an off-line installation.

Installation in-line

If the system is in operation the instrument must be connected to the sample using a shut-off valve to

extract the sample. This requires a total distance D1 + D2 (see Figure 2) of less than 2 meters and a

flow rate exceeding 20 L/hour (ideally 60 L/hour).

After opening the sample valve, wait at least 30 minutes to ensure all parts in contact with the sample

have been well rinsed and that the optimal thermal equilibrium between the sample, flow chamber

and conductivity sensor has been reached.

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English

Figure 2 Installation in-line

1 D1 2 D2

Installation off-line

Place the sensor in a flow chamber and connect the flow chamber to the "OUT" port on the

instrument using a small piece of plastic tubing. The sample is evacuated through tubing attached

the outlet port on the flow chamber.

A flow rate exceeding 20 L/hour (ideally 60 L/hour) is required. After opening the sample valve, wait

at least 30 minutes to ensure all parts in contact with the sample have been well rinsed and that the

optimal thermal equilibrium between the sample, flow chamber and conductivity sensor has been

reached.

English

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Figure 3 Installation off-line

Mains connection

W A R N I N G

The installation of the instrument should be performed exclusively by personnel specialized and authorized to

work on electrical installations, in accordance with relevant local regulations. In addition, and in accordance with

safety standards, it must be possible to disconnect the power supply of the instrument in its immediate vicinity.

Use a three wire mains supply cable (live, neutral and earth) with a cross-section between 0.35 and

2 mm

2

(AWG 22 to 14) rated at 105 °C minimum. The external cable insulation should be cut as

close as possible to the terminal block.

The connector for the mains power cable is delivered with the instrument (see Figure 4) and can be

found in the accessory drawer (No. 7 in Figure 1 on page 8) at the front of the instrument.

Figure 4 Mains power cable connector

1 Live wire 5 Female contact with locking nut 9 Rubber gasket

2 Neutral wire 6 Rubber gasket 10 Cable tightening nut

3 Not used 7 Main connector body

4 Earth wire 8 Clamping ring

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Disassemble the connector by unscrewing the two ends of the connector (Nos. 1 and 6 in Figure 4)

from the main body. Pass the power cable through the connector components numbers 6 through to

2. Then connect the power cable to the female contact (No. 1 in Figure 4).

Reassemble the connector and power the instrument according to the specifications on the product

label (No. 9 in Figure 1 on page 8). Connect the power cable connector to the instrument power

supply socket (No. 6 in Figure 1 on page 8) after first unscrewing the socket protection cap.

Analog outputs

The analog output is used to record the measurements provided by the instrument (conductivity or

temperature). It is recommended to use a standard cable (reference 08319=A=0005) that can be

purchased through your local Hach Lange representative. This cable should be wired as follows:

• White: pin 1+

• Red: pin 1-

• Blue: pin 2+

• Black: pin 2-

• Orange: do not use

Connect to the 4-20 mA outputs socket (No. 4 in Figure 1 on page 8) after first unscrewing the socket

protection cap.

Electrical conductivity calibration connection

Electrical calibration is used to eliminate any electronic error of the system being tested, in

accordance with standard ASTM D 5391. The conductivity calibration socket connector (No. 5 in

Figure 1 on page 8) is connected to a certified precision resistor (200 kΩ) in order to simulate the

resistivity of ultra pure water.

Only systems using the Polymetron sensor models 8310, 8314 and 8315 have a cable and connector

able to achieve this type of calibration. In this case, simply disconnect the cable from the sensor and

connect it to the instrument conductivity calibration socket after first unscrewing the socket protection

cap. Then follow the instructions in the user manual of the system being tested to perform an

electronic calibration with a value of 200 kΩ.

Startup

Make sure that the flow rate and pressure do not exceed the values in Specifications on page 3.

1. Open the valve on the sample line to let sample flow through the analyzer.

2. Turn the knob on the flow meter to set the flow rate.

3. Examine the plumbing for leaks and stop any leaks if found.

4. Apply power to the controller.

5. Make the applicable menu selections when the controller starts.

User interface and navigation

User interface

The keypad has four menu keys and four directional keys as shown in Figure 5.

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13

Figure 5 Keypad and front panel overview

1 Instrument display 5 BACK key. Moves back one level in the menu

structure.

2 Cover for secure digital memory card slot 6 MENU key. Moves to the Settings Menu from other

screens and submenus.

3 HOME key. Moves to the Main Measurement

screen from other screens and submenus.

7 Directional keys. Used to navigate through the

menus, change settings, and increment or

decrement digits.

4 ENTER key. Accepts input values, updates, or

displayed menu options.

Inputs and outputs are set up and configured through the front panel using the keypad and display

screen. This user interface is used to set up and configure inputs and outputs, create log information

and calculated values, and calibrate sensors. The SD interface can be used to save logs and update

software.

Display

Figure 6 shows an example of the main measurement screen with the sensor connected to the

controller.

The front panel display screen shows sensor measurement data, calibration and configuration

settings, errors, warnings and other information.

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English

Figure 6 Example of Main Measurement screen

1 Home screen icon 7 Warning status bar

2 Sensor name 8 Date

3 SD Memory card icon 9 Analog output values

4 Relay status indicator 10 Time

5 Measurement value 11 Progress bar

6 Measurement unit 12 Measurement parameter

Table 1 Icon descriptions

Icon Description

Home screen The icon may vary depending on the screen or menu being displayed. For example, if an SD

card is installed, an SD card icon appears here when the user is in the SD Card Setup menu.

SD memory

card

This icon appears only if an SD card is in the reader slot. When a user is in the SD Card Setup

menu, this icon appears in the upper left corner.

Warning A warning icon consists of an exclamation point within a triangle. Warning icons appear on the

right of the main display below the measurement value. Push the ENTER key then select the

device to view any problems associated with that device. The warning icon will no longer be

displayed once all problems have been corrected or acknowledged.

Error An error icon consists of an exclamation point within a circle. When an error occurs, the error

icon and the measurement screen flash alternately in the main display. To view errors, push the

MENU key and select Diagnostics. Then select the device to view any problems associated

with that device.

Additional display formats

• From the Main Measurement screen push the UP and DOWN arrow keys to switch between

measurement parameters

• From the Main Measurement screen push the RIGHT arrow key to switch to a split display of up to

4 measurement parameters. Push the RIGHT arrow key to include additional measurements. Push

the LEFT arrow key as needed to return to the Main Measurement screen

• From the Main Measurement screen push the LEFT arrow key to switch to the graphical display

(see Graphical display on page 15 to define the parameters). Push the UP and DOWN arrow

keys to switch measurement graphs

Graphical display

The graph shows concentration and temperature measurements for each channel in use. The graph

supplies easy monitoring of trends and shows changes in the process.

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15

1. From the graphical display screen use the up and down arrow keys to select a graph and push

the HOME key.

2. Select an option:

Option Description

MEASUREMENT VALUE Set the measurement value for the selected channel. Select between Auto Scale

and Manually Scale. For manual scaling enter the minimum and maximum

measurement values

DATE & TIME RANGE Select the date and time range from the available options

Operation

Configure the sensor under test

Use the CONFIGURE menu to enter identification information about the sensor under test.

1. Push the menu key and select SENSOR SETUP>CONFIGURE.

2. Select an option and push enter. To enter numbers, characters or punctuation, push and hold the

up or down arrow keys. Push the right arrow key to advance to the next space.

Option Description

EDIT NAME Changes the name that corresponds to the sensor on the top of the measure screen.

The name is limited to 16 characters in any combination of letters, numbers, spaces or

punctuation. Only the first 12 characters are displayed on the controller.

SENSOR S/N Allows the user to enter the serial number of the sensor, limited to 16 characters in any

combination of letters, numbers, spaces or punctuation.

SELECT MEASURE Changes the measured parameter to CONDUCTIVITY (default) or RESISTIVITY. All

other configured settings are reset to the default values. Set to the same parameter as

the controller under test.

DISPLAY FORMAT Changes the number of decimal places that are shown on the measure screen. When

set to auto, the number of decimal places changes automatically with changes in the

measured value. Set to the same parameter as the controller under test.

MEAS UNITS Changes the units for the selected measurement. Set to the same parameter as the

controller under test.

TEMP UNITS Sets the temperature units to °C (default) or °F. Set to the same parameter as the

controller under test.

T-COMPENSATION Adds a temperature-dependent correction to the measured value. Enter the same

details as those configured on the controller under test.

CABLE PARAM This option is reserved for Hach Lange service technicians.

TEMP ELEMENT Sets the temperature element to PT100 for automatic temperature compensation. If no

element is used, the type can be set to MANUAL and a value for temperature

compensation can be entered.

FILTER Sets a time constant to increase signal stability. The time constant calculates the

average value during a specified time—0 (no effect) to 60 seconds (average of signal

value for 60 seconds). The filter increases the time for the sensor signal to respond to

actual changes in the process.

LOG SETUP Sets the time interval for data storage in the data log—5, 30 seconds, 1, 2, 5, 10,

15 (default), 30, 60 minutes.

RESET DEFAULTS Sets the configuration menu to the default settings. All sensor information is lost.

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Calibration

About sensor calibration

There are no calibration options available from the menus of the 9526 instrument. All calibrations are

performed from the controller of the sensor under test. For detailed information on these calibration

procedures refer to the associated manuals delivered with the sensor and controller under test.

N O T I C E

After turning on the 9526 instrument and initiating sample circulation, wait for at least 30 minutes in order to allow

correct rinsing of the whole system. This also enables the temperature equilibration between the sample, the flow

chamber and the sensor.

After 30 minutes of sample circulation, compare the measurement value displayed on the controller

under test against the measurement value displayed on the 9526 instrument. If these values are

outside ± 5% of each other than a calibration is required. If these values are within ± 5% of each

other than a calibration is not necessary but can still be performed.

Before calibrating the sensor under test, make sure to perform a temperature calibration first.

Calibration process

All calibrations are made using the controller and sensor under test. Follow the instructions in the

associated controller and sensor user manuals.

The process can be different according to the Polymetron controller under test. Perform the

calibration process in the following sequence.

1. Temperature calibration

The following equipment is required for a temperature calibration:

• Pt100 simulator (< 0.1 °C) for a 2-point electrical calibration

• Certified precision thermometer (< 0.1 °C) if connected in-line

• None if mounted off-line as the 9526 is used as the reference

Polymetron controller model under test

9500 9125 Others

2-point electrical

calibration

NO YES (100 and 172 Ω) NO

Process calibration YES YES YES

2. Electrical calibration

Polymetron controller model under test

9500 / 9125 9125 (< V1.12) / 8925 / Others 8920

R∞

3

and 200 kΩ

4

NO R∞

3

3. Conductivity calibration

Polymetron controller model under test

9500 / 9125 / 8920 9125 (< V1.12) / 8925 Others

K calculation (see K Calculation

on page 18). On the controller

under test, enter the K Cell value

computed by the Polymetron 9526

Process: R∞ and comparative

measurement with 9526

5

Process: Comparative

measurement with 9526

5

3

Cable disconnected from the sensor or sensor exposed to air

4

Use the precision resistance on the 9526

5

Adjust the displayed value of the transmitter under test to that of the 9526 value

English 17

K Calculation

Use this option to re-calculate the cell constant K value for the sensor under test.

1. Push the menu key and select SENSOR SETUP>K CALCULATION.

Option Description

K CALCULATION This option is only valid if the last sensor calibration date is within one month of the

current date. The following parameters are required:

• SITE ID—The name of the site ID is limited to 10 characters in any combination of

letters, numbers, spaces or punctuation

• CONDUCTIVITY— Enter the measurement value from the controller under test

• TEMPERATURE— Enter the sample temperature from the controller under test

• CELL K VALUE— Enter the cell constant K value from the controller under test

• CALIBRATION SLOPE— Enter the slope value from the controller under test

The new K value is calculated and displayed and should be entered into the controller

under test.

Note: The calculation will fail if the new value is outside ±10% of the original value.

K CALCULATION

LOG

Lists all log files sorted by date and time. Use the arrow keys to select a log file and

push enter to view the calculation details.

RESET K CALC

LOG

Enter the factory pass code and select YES to delete the existing log file. Push enter

to continue.

Maintenance

D A N G E R

Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.

Cleaning the controller

D A N G E R

Always remove power from the controller before performing maintenance activities.

Note: Never use flammable or corrosive solvents to clean any part of the controller. Use of these solvents may

degrade the environmental protection of the unit and may void the warranty.

1. Make sure the controller cover is securely closed.

2. Wipe the controller exterior with a cloth dampened with water, or with a mixture of water and mild

detergent.

Clean the sensor

W A R N I N G

Chemical hazard. Always wear personal safety protection in accordance with the Material Safety Data Sheet for

the chemical that is used.

W A R N I N G

Personal injury hazard. Removal of a sensor from a pressurized vessel can be dangerous. Reduce the process

pressure to below 10 psi before removal. If this is not possible, use extreme caution. Refer to the documentation

supplied with the mounting hardware for more information.

Pre-requisite: Prepare a mild soap solution with a non-abrasive dishwashing detergent that does not

contain lanolin. Lanolin leaves a film on the electrode surface that can degrade the sensor

performance.

Examine the sensor periodically for debris and deposits. Clean the sensor when there is a buildup of

deposits or when performance has degraded.

18

English

1. Use a clean, soft cloth to remove loose debris from the end of the sensor. Rinse the sensor with

clean, warm water.

2. Soak the sensor for 2 to 3 minutes in a soap solution.

3. Use a soft bristle brush to scrub the entire measuring end of the sensor.

4. If debris remains, soak the measuring end of the sensor in a dilute acid solution such as < 5%

HCl for a maximum of 5 minutes.

5. Rinse the sensor with water and then return to the soap solution for 2 to 3 minutes.

6. Rinse the sensor with clean water.

Always calibrate the sensor after maintenance procedures.

Troubleshooting

Sensor diagnostic and test menu

The sensor diagnostic and test menu shows current and historical information about the instrument.

Refer to Table 2.

To access the sensor diagnostic and test menu, push the menu key and select SENSOR

SETUP>DIAG/TEST.

Table 2 Sensor DIAG/TEST menu

Option Description

MODULE INFORMATION Shows information about the sensor module.

SENSOR INFORMATION Shows the name and serial number that was entered

by the user.

CAL DAYS Shows the number of days since the last calibration.

CAL HISTORY Shows a list of all calibrations by date/time stamp. Use

the arrows keys to select a calibration and push enter

to view the details.

RESET CAL HISTORY Resets the calibration history for the sensor (requires

service-level passcode). All previous calibration data is

lost.

POLARIZATION Contacting conductivity sensors only. Shows

information about the electrode polarization, the cable

capacitance and the time before the next

measurement.

SENSOR SIGNALS Shows the current sensor signal information.

FACTORY CAL Reserved for service technicians only.

DIAG MEAS Shows diagnostic information about the current

measurement.

Error list

Errors may occur for various reasons. An error icon consists of an exclamation point within a circle.

When an error occurs, the error icon and the measurement screen flash alternately in the main

display. All outputs are held when specified in the controller menu. To view errors, push the menu

key and select DIAGNOSTICS. Then select the device to view any problems associated with that

device.

A list of possible errors is shown in Table 3.

English

19

Table 3 Error list for conductivity sensors

Error Description Resolution

ADC FAILURE The analog to digital conversion

failed

Make sure that the sensor module is

fully inserted into the controller

connector. Replace the sensor

module.

SENSOR MISSING The sensor is missing or

disconnected

Examine the wiring and connections

for the sensor and for the module.

Make sure that the terminal block is

fully inserted into the module.

SENS OUT RANGE The sensor signal is outside of the

accepted limits (2 S/cm)

Make sure that the display format is

set for the correct measurement

range.

Warning list

A warning icon consists of an exclamation point within a triangle. Warning icons appear on the right

of the main display below the measurement value. A warning does not affect the operation of menus,

relays and outputs. To view warnings, push the menu key and select DIAGNOSTICS. Then select

the device to view any problems associated with that device. The warning icon will no longer be

displayed once the problem has been corrected or acknowledged.

A list of possible warnings is shown in Table 4.

Table 4 Warning list for conductivity sensors

Warning Description Resolution

MEAS TOO HIGH The measured value is > 2 S/cm,

1,000,000 ppm, 200% or 20,000 ppt

Make sure that the display format is

set for the correct measurement

range

MEAS TOO LOW The measured value is < 0 μS/cm,

0 ppm, 0% or 0 ppt

Make sure that the sensor is

configured for the correct cell

constant.

ZERO TOO HIGH The zero calibration value is too

high

Make sure that the sensor is held in

air during zero calibration and is not

located near radio frequency or

electromagnetic interference. Make

sure that the cable is shielded by

metal conduit.

ZERO TOO LOW The zero calibration value is too low

TEMP TOO HIGH The measured temperature is >

200 °C

Make sure that the sensor is

configured for the correct

temperature element.

TEMP TOO LOW The measured temperature is <

-20 °C

CAL OVERDUE The Cal Reminder time has expired Calibrate the sensor.

NOT CALIBRATED The sensor has not been calibrated Calibrate the sensor.

REPLACE SENSOR The sensor has been in operation >

365 days

Calibrate the sensor with a

reference solution and reset the

sensor days. Refer to Sensor

diagnostic and test menu

on page 19. If the calibration fails,

call technical support.

CAL IN PROGRESS A calibration was started but not

completed

Return to calibration.

OUTPUTS ON HOLD During calibration, the outputs were

set to hold for a selected time.

The outputs will become active after

the selected time period.

20 English

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