EUTECH INSTRUMENTS Oakton CON 510 User manual

Instruction Manual
CON 510
Bench Conductivity/TDS Meter
ENGLISH
Copyright © 2002 All rights reserved.
Eutech Instruments Pte Ltd
Oakton Instruments
Version 1.1

1DISPLAY AND KEYPAD FUNCTIONS 3
1.1 Display 3
1.2 Keypad 3
2PREPARATION 4
2.1 Conductivity Electrode Information 4
2.2 Connecting the electrode to the meter 4
2.3 Connecting the AC/DC Adapter 4
2.4 Connecting the Electrode Holder 4
3CALIBRATION 5
3.1 Important Information on Meter Calibration 5
3.2 Preparing the Meter for Calibration 5
3.3 Temperature Calibration 5
3.4 Automatic or Manual, Single or Multi point Calibration (P5.0) 5
3.4.1 Selection of Automatic or Manual Calibration (P5.0) 5
3.4.2 Selection of Single or Multi Point Calibration (P5.1) 5
3.5 Automatic Calibration (For Conductivity Calibration Only) 6
3.6 Manual Calibration (For Conductivity & TDS Calibration) 6
3.7 TDS Calibration 6
3.7.1 Calibrating TDS with conductivity standards & adjusting TDS factor 6
3.7.2 Setting the TDS Conversion Factor (P3.4) 6
3.7.3 Calibrating for TDS using TDS standards 6
4MEASUREMENT 7
4.1 Temperature Compensation 7
4.1.1 Selecting Temperature Compensation mode (P3.3) 7
4.1.2 Setting manual temperature compensation value 7
4.2 Taking Measurements 7
4.3 HOLD Function 7
4.4 Selection of READY and Auto HOLD function (P3.1) 7
4.5 Ranging settings and options 7
4.5.1 Selecting manual or auto ranging 8
5MEMORY FUNCTION 8
5.1 Memory Input 8
5.2 Memory Recall 8
6OTHER FUNCTIONS 8
6.1 Selection of °C or °F (P3.2) 8
6.2 Viewing calibration data (P1.0) 8
6.3 Viewing Electrode Data (P2.0) 8
6.4 Reset to factory defaults (P7.0) 8
6.5 Setting the temperature coefficient (P4.1) 9
6.6 Setting the normalisation temperature (P4.2) 9
6.7 Selection of cell constant (P6.0) 9
7. ERROR MESSAGES 9
8. TROUBLESHOOTING 9
Oakton Instruments
P.O Box 5136,
Vernon Hills, IL 60061,
USA
Tel: [phone]
Fax: [phone]
[email protected]
www.4oakton.com
www.oaktoninstruments.com
Eutech Instruments Pte Ltd.
Blk 55, Ayer Rajah Crescent,
#04-16/24 Singapore 139949
Singapore
Tel: [phone]
Fax: [phone]
[email protected]
www.eutechinst.com
Eutech Instruments Europe bv
Wallerstraat 125k
3862 CN Nijkerk
The Netherlands
Tel: [phone]
Fax: [phone]
[email protected]
www.eutech.nl
2

1 INTRODUCTION
This manual contains the operating features of this meter. At some points this manual will refer to our website
www.eutechinst.com,for further explanation and background information, it will be indicated with this symbol:
On this website you can also find additional information regarding applications, measuring theories and hints & tips.
At the final page of this manual you can find information about the specifications of this meter, warranty issues and how
to return your product to us.
2 DISPLAY AND KEYPAD FUNCTIONS
2.1 Display
The LCD has a primary and secondary display.
• The primary display shows the measured Conductivity/TDS values.
• The secondary display shows the measured temperature.
The display also shows error messages, keypad functions and program functions. It has the following indicators:
1. SETUP - Setup mode
2. MEAS – Measurement mode
3. CAL - Calibration mode
4. MEM - Memory recall mode
5. ms - Mill siemens
6. µs - Micro siemens
7. ppt - Parts per thousand
8. ppm - Parts per million
9. ATC – Automatic Temperature Compensation
10. °C°F – Temperature
11. ERR - Error
12. Electrode
13. Calibration solution
14. K = - Cell Constant.
15. ON – READY/Auto HOLD set up enable.
OFF – READY set up disable
16. HOLD – Hold
17. READY – Read
2.2 Keypad
Some button has several functions depending on its mode of operation.
KEY Function
ON / OFF ON/OFF - Powers on and shuts off the meter. The meter will start in the measurement mode it was in when
last switched off.
CAL /
MEAS
Toggles between Calibration and Measurement mode.
NOTE: Temperature calibration is available from conductivity/TDS calibration mode.
HOLD HOLD - Activates/Deactivates freezing of the reading while in measurement mode.
MI/▲
MR/▼
In Measurement mode: Press MI/▲to store values with its corresponding temperature values in the
memory. Press MR/▼to retrieve data from memory.
In Calibration mode: Press to scroll calibration values.
In SETUP mode: Press to scroll setup subgroup.
SETUP SETUP- Activates the setting menu for customizing the meter
MODE MODE Selects the measurement or calibration mode
ENTER /
RANGE
ENTER: Press to confirm values in Calibration mode and selections in SETUP mode.
RANGE: Press to enter manual ranging function.
3

3 PREPARATION
3.1 Conductivity Electrode Information
Your meter includes a conductivity electrode (Part No: ECCONSEN91W/ 35608-50) Ultem / Stainless Steel electrodes
with an electrode constant of K = 1.0. This conductivity / TDS electrode features a built-in temperature sensor for
Automatic Temperature Compensation (ATC). Wetted parts include:
•Polyetherimide PEI (Ultem®)
•Polybutylene Terephthalate PBT (Valox®)
•Stainless Steel (SS 304)
The removable protective plastic electrode guard is meant for simple periodic maintenance and it must be kept
in tact during measurement and calibration. Always immerse the electrode beyond upper steel band.
Note: DO NOT remove the protective electrode guard during measurement and calibration as it may affect your
readings.
Note: We recommend that you do not submerge the electrode above the protective yellow cap. You can
submerge the cable for brief periods of time, not continuously.
3.2 Connecting the electrode to the meter
1. Insert the 6 pin female connector of the electrode to the 6 pins male connector on the meter.
Rotate the locking ring clockwise until it locks.
2. To remove the electrode, simply rotate the connector’s locking ring counterclockwise and pull away gently
for a complete removal.
Immerse
probe beyond
upper steel
band
CAUTION: Do not pull on the electrode cord to avoid internal wire breakages.
3.3 Connecting the AC/DC Adapter
The AC/DC adapter must be unplugged. Ensure that main voltage matches the adapter. Slide the AC/DC adapter jack
into the socket marked DC of the meter. AC/DC adapter specifications: Input Voltage: 110 or 220 V • Output Voltage: 9
VDC • Current: 500 mA.
NOTE: Ensure the input voltage matches your adapter before connection.
3.4 Connecting the Electrode Holder
This meter’s base plate has a side metal bar for a swivel electrode holder. The holder can be mounted on either right or
left side of the meter.
To position the electrode arm:
Use a screwdriver to remove the screw holding the side bar. Line up the side bar with the second screw slot. Use the
earlier removed screw to secure the side bar.
To install the electrode arm to the meter:
Align the slot of the arm with the metal rod at the metal side bar. Push it down until it fully sits into position.
4

4 CALIBRATION
4.1 Important Information on Meter Calibration
Your meter has five measuring ranges. You have an option of calibrating your meter in a single point calibration for all
the five ranges or for better accuracy; you can calibrate one point in each of the measuring ranges (up to five points).
When you perform a single point recalibration, the old calibration will be replaced by the new one even if the new
calibration is done in a different range from the old calibration. For example, if you have previously calibrated at 1413 µS
in 0 to 2000 µS range, and you recalibrate at 12.88 mS in 0 to 20.00 mS range, the new calibration will override the
previous calibration in 0 to 2000 uS range.
In the case of multi point calibration, when you perform a multi point recalibration, old calibrations are replaced only on a
range basis. For example, if you previously calibrated at 1413 µS in 0 to 2000 µS range and you recalibrate at 1500 µS
(also in 0 to 2000 µS range), the meter will replace only the old calibration data (1413µS) in that range. The meter will
retain all calibration data in other ranges. To completely recalibrate your meter, or when you use a replacement
electrode, it is best to clear all calibration data.
4.2 Preparing the Meter for Calibration
Before starting calibration, make sure you are in the correct measurement mode. For best results, select a standard
value close to the sample value you are measuring.
4.3 Temperature Calibration
Your electrode features a built-in temperature sensor which is factory calibrated. Calibrate your sensor only if you
suspect temperature errors may have occurred over a long period of time or if you have a replacement electrode.
1. Connect the electrode.
2. Switch the meter on. ATC will appear at the bottom right-hand corner of the LCD.
3. Press MODE to select conductivity or TDS mode.
4. Press CAL/MEAS. The CAL indicator appears.
5. Press MODE to enter temperature calibration mode.
6. Dip the electrode into a solution of known temperature (i.e. a temperature bath). Allow time for the built-in temperature
sensor to stabilize.
7. Scroll with MI/ or MR/ to set the correct temperature value (i.e. the temperature of the temperature bath). Maximum
offset value is 5.0 °C.
8. Press ENTER to confirm. The meter will be calibrated and return to measure mode.
Note: To exit without confirming the temperature calibration value, press CAL/MEAS.
ed to carry out a conductivity / TDS
.4 Automatic or Manual, Single or Multi point Calibration (P5.0)
ctivity / TDS calibration. In the automatic
e.
ual cal can be used. You can manually input the appropriate values as
.4.1 Selection of Automatic or Manual Calibration (P5.0)
ode only, manual calibration is applicable in both
/▼until you view parameter P5.0 (ACAL).
/▼to select. “YES” activates automatic calibration, “NO” activates manual calibration.
e to return to measurement mode.
.4.2 Selection of Single or Multi Point Calibration (P5.1)
Note: If the ATC does not light up, see SETUP menu Program P3.3 to switch it on.
Note: Since temperature affects the accuracy of conductivity / TDS, it is recommend
calibration after a temperature calibration is done.
4
You can either choose automatic conductivity calibration or manual condu
calibration mode, the meter automatically detects and verifies the appropriate known calibration standards solutions
before accepting these particular calibration standards as one of its calibration values in a specific measurement rang
The known calibration standards used for automatic calibration are:
At 25.0°C : 84µS , 1413µS , 12.88mS , 111.8mS
At 20.0°C : 76µS , 1278µS , 11.67mS , 102.1mS
In the man ibration, non-standard calibration values
your desired calibration standards in each specific range.
4
Automatic calibration is applicable in conductivity measurement m
conductivity and TDS mode. Only from the conductivity measurement mode;
1. Press SETUP.
2. Press MI/▲or MR
3. Press ENTER
4. Press MI/▲or MR
5. Press ENTER to confirm.
6. Press CAL/MEAS key twic
4
Single point calibration lets you have a single calibration factor for all five ranges by calibrating one point in either one of
the ranges, this factor is applied to all the five ranges.
Multi point calibration gives better calibration accuracy by letting you calibrate in each of the five ranges, this calibration
factor would only be applicable in the particular range where the calibration is done.
5

1. Repeat steps 1 to 5 from P 4.4.1. (display shows SPC)
2. Press MI/▲or MR/▼to select. “YES” activates single point calibration, “NO” activates multi point calibration.
ation Only)
on standard.
:
3. Press ENTER to confirm.
4. Press CAL/MEAS to return to measurement mode.
5.
4.5 Automatic Calibration (For Conductivity Calibr
This procedure describes the method for calibration to a 1413 µs calibrati
Note select automatic or manual calibration as described in p 4.4.1
Note: select single -or multi point calibration as described in p 4.4.2
Note: To exit without confirmation, press CAL/MEAS to go back to measurement mode.
mount of calibration standard.
e the electrode tip beyond the upper steel band. Stir the
ation standard value.
6.
tep 1 to 6 for every calibration point in each measuring range using the known
libration)
ard.
:
1. If necessary, the MODE to select conductivity mode.
2. Rinse the electrode with de-ionized water or a rinse solution, then rinse with a small a
3. Dip the electrode into the calibration standard. Immers
electrode gently to create a homogeneous sample. Allow time for the reading to stabilize.
4. Press CAL/MEAS to enter calibration mode. The CAL indicator will appear in the upper corner of the display. The
primary display shows the current measured value, the secondary display shows the calibr
5. Wait for READY to appear
Press ENTER to confirm. The meter will now return to the measurement mode.
Multi point calibration: repeat s
calibration solutions until all points have been calibrated.
.6 Manual Calibration (For Conductivity & TDS Ca4
This procedure describes calibration to a 12.00 mS calibration stand
Note select automatic or manual calibration as described in p 4.4.1
Note: select single -or multi point calibration as described in p 4.4.2
Note: To exit without confirmation, press CAL/MEAS to go back to measurement mode.
value in the upper display to the calibration
Mul on: repeat step 1 to 3 for every calibration point in each measuring range using the calibration
onductivity standards & adjusting TDS factor
n calibrate by using the
o the meter. For more information
Note: Ensure you set the correct TDS factor before TDS calibration..
1. Repeat step 1 to 4 from p 4.5
2. Wait for the value to stabilize and press MI/▲or MR/▼, adjust the
standard used.
3. Press ENTER to confirm and return to measurement mode.
ti point calibrati
solutions until all points have been calibrated.
.7 TDS Calibration4
.7.1 Calibrating TDS with c4
Instead of calibrating for TDS directly using TDS calibration standard solutions, you ca
conductivity calibration method and enter the appropriate TDS conversion factor int
regarding TDS Conversion Factor determination, please refer to our website: www.eutechinst.com
4.7.2 Setting the TDS Conversion Factor (P3.4)
The factory default setting for TDS conversion factor is 0.5.
accura by setting the TDS factor prior to calibration.
If your solution has a different TDS factor, you can improve
cy
P3.0 (COF)
peatedly until you view P 3.4 (tdS).
S conversion factor.
mode.
.
ett e TDS mode.
this time using the TDS calibration standards.
± 40% from the default setting. If your measured value differs by more than ±
1. Press MODE to select TDS mode.
2. Press Setup.
3. Press MI/▲or MR/▼until you view
4. Press ENTER re
5. Press MI/▲or MR/▼to select your calculated TD
6. Press ENTER to confirm and return to measurement
7. Press the CAL/MEAS key to return to measurement mode.
4.7 3 Calibrating for TDS using TDS standards
After s ing the correct TDS Factor, you can calibrate in th
1. Press MODE to select the TDS mode.
2. Follow the instructions in p 3.6 for the rest of the calibration process,
Note: You can offset the TDS reading up to
40%, clean or replace electrode as needed.
6

5 MEASUREMENT
5.1 Temperature Compensation
This meter can take measurements with automatic (ATC) or manual (MTC) temperature compensation. Factory default is
ATC on. For ATC, attach the conductivity/TDS electrode to the meter. The ATC indicator will light on the LCD.
If the conductivity/TDS electrode is not properly attached to the meter or it has been damaged, the ATC indicator will
blink and the temperature display will show “Ur”. If the ATC indicator does not light and the temperature display shows a
reading, the meter might be in MTC mode.
5.1.1 Selecting Temperature Compensation mode (P3.3)
1. Press SETUP
2. Press MI/▲or MR/▼until you view P3.0 (COF)
3. Press ENTER repeatedly until you view P 3.3 (ATC).
4. Press ENTER. The upper display shows “ATC” and the lower shows “YES” or “NO”.
5. Press MI/▲or MR/▼to select: “YES”, ATC is on or “NO”, ATC is off.
6. Press ENTER to confirm selection.
7. Press CAL/MEAS to return to measurement mode.
8.
5.1.2 Setting manual temperature compensation value
MTC enables you to enter the temperature value of your sample into the meter. Select any temperature between 0 and
100°C (32 to 212 °F). This is the value at which the readings will be temperature compensated. Default value is 25.0 °C.
1. Set temperature mode to MTC (p 4.1.1) and go through step 1 to 7.
2. Press CAL/MEAS. The CAL indicator will appear above the primary display.
3. Press MODE.
4. Press MI/▲or MR/▼to offset the temperature to your preferred settings.
5. Press ENTER to confirm
Note: To exit this program without confirming the MTC value, press CAL/MEAS.
5.2 Taking Measurements
1. Rinse the electrode with de-ionized or distilled water before use. Shake or air dry. To avoid contamination or dilution
of your sample, rinse electrode with a small volume of your sample liquid.
2. Press ON to switch on meter.
3. Dip the electrode into the sample. When dipping the electrode into the sample, ensure that the liquid level is above
its upper steel band. Stir the electrode gently in the sample to create a homogenous sample.
4. Allow time for the reading to stabilize.
5. Press MODE to toggle between conductivity and TDS readings (if necessary).
5.3 HOLD Function
Lets you freeze the display and hold the measured value.
1. Press HOLD/ENTER to hold a measurement. “HOLD” will appear on the display.
2. Press HOLD/ENTER again to release the held value.
Note: If the meter is shut off the HOLD value will be lost. For longer storage, use the memory functions.
5.4 Selection of READY and Auto HOLD function (P3.1)
The “READY” display indicates the measurement stability during a measuring process.
The Auto HOLD function lets the meter to “hold” your measurement when it is stable for more than 5 seconds. Press
MI/▲to store reading into the memory. Press the HOLD key to release the display and access other functions. From
measurement mode:
1. Press SETUP.
2. Press MI/▲or MR/▼until you view P3.0 (COF)
3. Press ENTER to select P3.1, upper display shows “rdY”.
4. Press MI/▲or MR/▼to select the configuration you require (left display).
a. “ON” activates the READY function.
b. “OFF” deactivates the READY function.
c. “ON” and “HOLD” activates the Auto HOLD function.
5. ENTER to confirm selection.
6. Press CAL/MEAS twice to return to measurement mode.
5.5 Ranging settings and options
Your meter automatically selects the range in which your readings appear. The manual ranging function lets you select
the specific range you want to work in:
Meter range symbol Conductivity range TDS range
r1 0 – 20.00 µS/cm 0 – 10.00 ppm
R2 0 – 200.0 µS/cm 0 – 100.0 ppm
r3 0 – 2000 µS/cm 0 – 1000 ppm
7

r4 0 – 20.00 mS/cm 0 – 10.00 ppt
r5 0 – 200.0 mS/cm 0 – 100 ppt
5.5.1 Selecting manual or auto ranging
1. Press RANGE while in measurement mode. Display will show either “r1” to “r5”, indicating the range you are in. The
range selected will appear and “MEAS” blinks.
2. Press RANGE, until desired range is selected.
3. To re-select the auto-ranging, repeatedly press RANGE until “MEAS” stops blinking.
Note: If the measured value is higher than the range selected, “Or” will appear. Press RANGE until the correct range is
selected.
Note: The meter resets to the Auto-ranging once it is turned off. Manual ranging needs to be reset each time you turn the
meter on.
6 MEMORY FUNCTION
The meter stores up to 50 sets of data. Sets include conductivity, TDS and temperature.
6.1 Memory Input
1. Press MI/▲during measurement to input data into the memory. MEM, “StO” and memory number will appear for a
moment.
2. If necessary, measure the next sample solution and press MI/▲key to input the next data into the memory.
Note: If the memory is full the first value stored will be overwritten.
6.2 Memory Recall
1. Press MR/▼once to retrieve the last reading stored.
2. Press ENTER to recall the reading
3. Press ENTER to return to the next memory location screen.
4. Press MI/▲or MR/▼to scroll to a specific memory location, press ENTER to select.
5. Press CAL/MEAS to exit Memory Recall.
Note: Readings stored in memory are retained even if the unit is turned off.
7 OTHER FUNCTIONS
7.1 Selection of °C or °F (P3.2)
1. Press SETUP.
2. Press MI/▲or MR/▼until you view P3.0 (COF)
3. Press ENTER until you view parameter P3.2 (C).
4. Press MI/▲or MR/▼to select between °C and °F.
5. Press ENTER to confirm selection.
6. Press CAL/MEAS to return.
7.2 Viewing calibration data (P1.0)
1. Press SETUP.
2. Press MI/▲or MR/ until you view parameter P1.0 (CAL).
3. Press ENTER repeatedly to view the previous calibration data on each of the five measuring ranges.
4. When you have scrolled through all calibration data, you will automatically return to the subgroup menu.
5. Press CAL/MEAS key to return to the measurement mode.
Note: If there is no calibration data at a particular point, the primary display will show “----“.
7.3 Viewing Electrode Data (P2.0)
1. Press SETUP.
2. Press MI/▲or MR/▼until you view parameter P2.0 (ELE).
3. Press ENTER repeatedly to view the effective cell constant for each range.
4. When you have scrolled through all the electrode data, you will automatically return to the subgroup menu.
5. Press CAL/MEAS to return to measurement mode.
7.4 Reset to factory defaults (P7.0)
Resets all settings to the factory default.
1. Press SETUP.
2. Press MI/▲or MR/▼until you view parameter P7.0 (rSt).
3. Press ENTER.
4. Press MI/▲or MR/▼to select: NO retains current settings or YES clears all calibrations and its data.
5. Press ENTER to confirm and return to subgroup menu.
6. Press CAL/MEAS to return to measurement mode.
8

7.5 Setting the temperature coefficient (P4.1)
The temperature coefficient is the amount of change in conductivity per degree of temperature; it is expressed in percent
per °C. Entering the exact temperature coefficient of your solution lets you accurately compensate temperature for
almost any solution. You can adjust 0.0 to 10.0 % per °C. Meter default is 2.1% per °C. By setting the temperature
coefficient to 0.0%, the meter will not apply any compensation but will display actual temperature.
1. Press SETUP
2. Press MI/▲or MR/▼until you view parameter P4.0 (tPr).
3. Press ENTER to select P4.1 (display shows “t.CO”).
4. Press ENTER.
5. Press MI/▲or MR/▼to select the temperature coefficient of your solution.
6. Press ENTER to confirm and return to subgroup menu.
7. Press CAL/MEAS twice to return to the measurement mode.
8.
7.6 Setting the normalisation temperature (P4.2)
Your meter will normalize its conductivity measurements to a standard temperature that you can select. You can adjust
the normalization temperature from 15°C to 30°C (59 to 86 °F). Meter default is 25.0°C (77 °F).
1. Press SETUP.
2. Press MI/▲or MR/▼until you view parameter P4.0.
3. Press ENTER three times to select P4.2 (display shows “t.nr”).
4. Press ENTER.
5. Press MI/▲or MR/▼to set the normalization temperature.
6. Press ENTER to confirm and return to subgroup menu.
7. Press CAL/MEAS to return to measurement mode.
8.
7.7 Selection of cell constant (P6.0)
The meter lets you select a cell constant of K = 1.0, 10, or 0.1. The cell included with your meter has a cell constant of
K=1.0.
1. Press SETUP.
2. Press MI/▲or MR/▼until you view parameter P6.0.
3. Press ENTER.
4. Press MI/▲or MR/▼to select the cell constant between K = 1.0, 0.1, or 10.
5. Press ENTER to confirm selection and return to the subgroup menu.
6. Press CAL/MEAS to return to measurement mode.
8 ERROR MESSAGES
Error message Indicates Possible cause Corrective action
ERR. Wrong keypad
input
Wrong input in selected
mode
Release key. Select valid operations
depending on mode
CAL & Err
annunciators on /
Buffer and electrode
indicators blink
Calibration error
Wrong value input at
calibration.
Dirty probe
Check your input value, clean probe. See
Calibration sections
9 TROUBLESHOOTING
Problem Possible cause Solution
No display
a) AC outlet not switched on.
b) AC adapter socket not inserted
properly
a) Switch on power supply.
b) Re-insert AC adapter socket.
Unstable readings
a) Air bubbles in electrode.
b) Dirty electrode
c) Electrode not deep enough in
sample
d) External noise pickup or
induction caused by nearby
electric motor
e) Electrode guard not attached
a) Tap electrode to remove bubbles, move electrode away
from bubbles present in sample
b) Clean electrode, recalibrate
c) Make sure sample entirely covers the electrode sensors
d) Move or switch off interfering motor.
e) Attach electrode guard
“Or” on upper
display
a) Probe is shorted.
b) Probe is in too-high solution for
measurement range.
a) Test probe.
b) Use different solution or select different range.
Not calibratable a) Dirty/Oily probe
b) Incorrect probe cell constant
A. Clean
B. Replace and use correct probe.
Slow response a) Dirty / Oily electrode a) Clean electrode
9