Water kits supply I931 User manual

I931 Benchtop Ion Meter

Features:

High accuracy ion meter is capable of connecting with a variety of ion selective

electrodes.

2 to 5 points calibration from low to high concentrations.

Direct ion concentration readout simplifies the elaborate measurement process.

Selectable multiple concentration units, including the ppm, mg/L and mol/L.

Automatic Temperature Compensation ensures accurate measuring result.

Stability indicator automatically shows current measurement status.

Auto-Hold function freezes stable reading for easy viewing and recording.

mV measurement mode allows user to check performance of the ion selective

electrode.

Automatic electrode diagnosis shows the slope of sensor.

Help message as a operational guide that helps you quickly using the meter.

System menu can be used to set 8 parameters, including the concentration unit,

number of calibration points, stability condition, resolution, auto-hold, etc.

Reset feature automatically resumes all settings back to factory default options.

Expanded memory stores and recalls up to 500 readings.

Stored data can be transferred into computer by USB communication interface.

•

Ion Concentration Range

Ion Concentration Accuracy

mV Range

mV Accuracy

Temperature Range

Temperature Accuracy

Calibration Points

Temperature Compensation

Hold Function

Stability Conditions

Memory

Output

Power Requirements

Dimensions

Weight

0.001~19999ppm, mg/L, mol/L (Depending the measuring range of ion selective electrode)

±0.5% F.S (Monovalent), ±1% F.S (Divalent)

-1999.9~1999.9mV

±0.2mV

0~105°C, 32~221°F

±0.5°C, ±0.9°F

2~5 points (0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000ppm, mg/L, mol/L, mmoL/L)

0~100°C, 32~212°F, Manual or Automatic

Low or High

Stores up to 500 data sets

I931

USB Communication Interface

DC5V, using AC adapter, 220VAC/50Hz

210(L)×188(W)×60(H)mm

1.5kg

Includes:

Meter, Electrode arm, Temperature probe, USB cable and power adapter.

Ion Selective Electrode and calibration standards (to be chosen by the user according

to user's analytical needs)

Specifications:

Calibration Due 0 to 31 days

Manual or Automatic

Model

www.water-kits.fr

WATER KITS SUPPLY

Tél : +33(0) 5 62 95 17 94

Email: [email protected]

Téléport 5 - 62590 Juillan - France

Web : www.water-kits.fr

I931 Benchtop Ion Meter

Introduction

Thank you for selecting the I931 benchtop ion meter. This manual provides a step-by-step guide to help you operate the meter, please carefully read the

following instructions before use.

Unpacking the Meter

Before unpacking, ensure that the current work environment meet following conditions.

●Relative humidity is less than 80%.

●Ambient temperature is greater than 0oC and less than 60oC.

●No potential electromagnetic interference.

The following list describes the standard accessories of the meter. After the unpacking, please check all accessories are complete. If any are damaged or

missing, please contact nearest distributor.

ACCESSORIES:

●Temperature Probe

●USB Cable

●DC5V Power Adapter

I931 Benchtop Ion Meter

Display

I931 benchtop ion meter is equipped with a clear and bright LCD display that used to show measured values, mode indicators and help message. The

following table describes the meaning of each indicator.

INDEX:

Measurement mode indicator:

Indicates meter is in the measurement mode

Stable indicator:

Indicates the measured value has stabilized

Calibration mode indicator:

Indicates meter is in the calibration mode

Hold indicator:

Indicates the displayed value has been frozen

Setup mode indicator:

Indicates meter is in SETUP mode

Calibration Due Reminder:

Prompts user to calibrate the meter regularly

Memory mode indicator:

Indicates data is stored into memory

Automatic Temperature Compensation:

Indicates meter is in the temperature compensation mode

I931 Benchtop Ion Meter

Keypad

The meter has a succinct membrane keypad, names and symbols describe the each function key controls.

MEAS|

●Power the meter ON/OFF.

●Freezes the measured value on the display, press the key again to resume measuring.

●In the calibration or temperature setting mode, exits current mode and returns to measurement.

MODE|oC

●Toggles between ion concentration and mV measurement modes.

●Press and hold the key to enter temperature setting mode.

CAL|

●Press the key to enter the calibration mode.

●Press and hold the key to enter the setup menu.

MI|

●Press the key to store current measured value.

●Press key in setup mode to scroll up through menu.

●Press key in temperature setting mode to increase the setting values.

MR|

●Press the key to view calibration report or stored data.

●Press key in setup mode to scroll down through menu.

●Press key in temperature setting mode to decrease the setting values.

ENTER

●Confirms the calibration, setting value or displayed option.

●Press and hold the key to turn On/Off the backlight.

I931 Benchtop Ion Meter

Connectors

I931 benchtop ion meter provides 4 connectors for connecting the various types of sensors. Listed in the below table are the details of these

connectors.

INDEX:

NO.

CONNECTOR

FUNCTION

ISE

For connecting the Ion Selective Electrode

ATC

For connecting the temperature probe

REF

For connecting the reference electrode

USB/

For connecting the USB cable and DC5V power adapter

Connecting the Electrode Holder

The meter comes with an easy-to-use holder for mounting a variety of Ion Selective Electrodes and temperature probe. If necessary, please follow the steps

below to install the electrode holder.

1. The base of the electrode holder with an irregular round hole.

2. The electrode arm has a plastic rod.

COND REFpH/ISE DOATC USB/

Plastic Rod

I931 Benchtop Ion Meter

3. Insert the plastic rod into the irregular round hole and swivel the electrode arm 90o. Electrode holder is now ready to swing into desired position.

ADJUSTMENT OF ELECTRODE ARM:

After installation, if the electrode arm automatically rises or falls, you need to adjust the screws until arm locate at any position.

1. Remove the plastic cover from the electrode arm.

2. Use the screwdriver to tighten the screw moderately.

3. Insert the plastic cover to previous position. Installation is completed.

Connecting the Electrode

1. Take out the Ion Selective Electrode from the packaging. Follow the steps below to place the electrode into left or right sides of the electrode arm.

2. Insert the BNC connector into the corresponding connector socket. Rotate and push the connector clockwise until it locks. After connection is completed,

DO NOT pull on the sensor cord. Always make sure that the connector is clean and dry.

Screws

A. Insert the electrode

B. Hook up the cord

C. Hook up the cord

I931 Benchtop Ion Meter

Prior to Use

●Remove the protective cap from the bottom of the Ion Selective Electrode.

●Soak the electrode in the diluted standard solution (e.g., 100ppm) for at least 10 minutes.

Power On/Off

●Press MEAS key to turn on the meter, the display shows measured values, mode indicators and help messages.

●Press and hold the MEAS key for 3 seconds, the meter will turn off.

●If you do not press any key within the specified time period, the meter will turn off automatically.



To disable the auto-off function, please read the SETUP MENU section.

I931 Benchtop Ion Meter

Setup Menu

I931 benchtop ion meter contains an integrated setup menu that allows you to customize each displayed option to meet measurement requirements.

PARAMETER

DESCRIPTION

OPTIONS

DESCRIPTION

DEFAULT

Measurement Unit:

Sets the default ion concentration and temperature

units.

ppm

Parts per million

●

mg/L

Milligrams per liter

mol/L

Moles per liter

Degrees Celsius

●

Degrees Fahrenheit

Calibration Points:

Select the number of calibration points.

2 points

●

3 points

4 points

5 points

Ion Valence:

Select the ion valence of sensor.

Monovalent

●

Divalent

Stable Criteria:

Sets the stability criteria for measurement.

When the “LO” option is enabled, measuring value

will stabilize quickly, but reading is less accurate.

When the “HI” option is enabled, measuring value

will stabilize slowly, but guarantees high accuracy.

Low

●

High

Auto-Hold:

When the auto-hold function is enabled, the meter

will automatically sense a stable end-point reading

and freeze it.

Enable

Disable

●

Auto-Power Off:

When the auto-off power is enabled, if you do not

press any key within a specified time period, the

meter will automatically turn off.

10 minutes

20 minutes

30 minutes

Disable

●

Calibration Due:

When calibration due reminder is enabled, if you do

not recalibrate meter within a specified time period,

the meter will automatically show indicator.

…

1 to 31 days

Disable

●

I931 Benchtop Ion Meter

Date and Time:

Sets the date and time of the meter.

---

Clear stored data:

Clear all stored data.

Enable

Disable

●

Reset:

Reset function allows user to restore the meter

back to factory default parameters. When this

function is enabled, all calibration values and

selected parameters will be lost or reset.

Enable

Disable

●

SETTING THE DEFAULT PARAMETERS:

1. Press and hold the key for 3 seconds, the meter enters setup menu, the display shows selectable parameter and page number.

2. Press or key to scroll through menu, select the parameter you want to set (Refer to Setup Menu section).

3. Press ENTER key to confirm, the display shows an option in the submenu.

…………Parameter

…………Page number

I931 Benchtop Ion Meter

4. Press or key to select the desired option.

5. Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.

EXIT THE SETUP MENU:

During the setup mode, if you want to exit setup menu, press MEAS key, the meter will return to measurement mode immediately.

…………Parameter

…………Option

I931 Benchtop Ion Meter

Setting the Date and Time

I931 benchtop ion meter has a real time clock that is used to time-stamp stored measured value and calibration data. Follow the steps below to set the

date and time during the first use.

1. Press and hold the key for 3 seconds to enter the setup menu.

2. Press or key until the display shows “Date” option.

3. Press ENTER key to confirm, the meter shows current year.

4. Press or key to set the year.

5. Press ENTER key to confirm, the meter shows current date and time ((Format: mm-dd, hh-mm)

…………Year

…………Format: Month - Day

…………Format: Hour - Minutes

I931 Benchtop Ion Meter

6. Press or key to set the date and time.

7. Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.

Selecting the Calibration Points

I931 benchtop ion meter supports ion concentration calibration up to 5 points with minimum of 2 points, available calibration points include the

following options.

MEASUREMENT UNITS

CALIBRATION POINTS

ppm

0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000

mg/L

0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000

mol/L

0.001, 0.01, 0.1, 1, 10

mmol/L

0.001, 0.01, 0.1

If you need to modify the number of calibration points, please follow the steps below.

1. Press and hold the key for 3 seconds to enter the setup menu.

2. Press key, the display shows “CAL/P-02” (Calibration Point) option.

3. Press ENTER key to confirm, the meter enters the setting mode.

4. Press or key to select the number of calibration points.

5. Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.

I931 Benchtop Ion Meter

Selecting the Ion Valence

The meter is capable of connecting a variety of ion selective electrodes. For the divalent ions, you need to set the ion valence before calibration or

measurement.

1. Press and hold the key for 3 seconds to enter the setup menu.

2. Press key, the display shows “ION/P-03” (Ion Valence) option

3. Press ENTER key to confirm, the meter enters the setting mode.

4. Press or key to select the ion valence.

5. Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.

I931 Benchtop Ion Meter

Selecting the Concentration Unit

I931 benchtop ion meter is capable of using the mg/L, ppm or mol/L as measurement unit of concentration. The factory default is ppm. If you need to

convert measurment unit, the meter must be recalibrated.

1. Press and hold the key for 3 seconds to enter the setup menu.

2. Press key, the display shows “UNIT” option.

3. Press ENTER key to confirm, the meter enters the setting mode.

4. Press or key to select the desired concentration unit (ppm, mg/L, mol/L).

5. Press ENTER key to confirm, the “CAL” indicator will flashing uninterruptedly indicating that the meter is waiting for calibrating.

6. Press CAL key to enter the calibration mode or MEAS key to cancel option.

I931 Benchtop Ion Meter

Temperature Compensation

In order to get accurate measuring results, you need to enable the manual or automatic temperature compensation before measurement or calibration.

AUTOMATIC TEMPERATURE COMPENSATION:

●Place the temperature probe into the circular hole of electrode arm.

●Insert the connector of temperature probe into corresponding connector socket (Marked “ATC”).

●The “ATC” indicator will show on the display, the meter is now switched to automatic temperature compensation mode.

MANUAL TEMPERATURE COMPENSATION:

1. DO NOT connect the temperature probe to meter.

2. Press and hold the oC key for 3 seconds to enter temperature setting mode.

3. Press or key to set the temperature value of sample.

4. Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.



In the temperature setting mode, press or key once, the setting value will increase or decrease by 0.1. Press and hold the or key, the setting

value will increase or decrease by 1.

I931 Benchtop Ion Meter

Ion Concentration Calibration

To obtain accurate measurement results, we recommend that you perform ion calibration and measurement at same temperature. If you are not calibrate

the meter or calibration is not successfully, the display will always show "0.000".

1. Press MODE key until the meter shows indicator.

2. Press CAL key, the meter shows 0.001ppm (or mg/L, mol/L, mmol/L).

3.If necessary, press or key to select the desired calibration point (e.g., 0.01ppm).

4. Rinse the Ion Selective Electrode with distilled water, then rinse with a small amount of ion standard solution.

5. Dip the electrode into corresponding calibration solution. Stir the sensor gently to create a homogenous solution.

I931 Benchtop Ion Meter

6. Press ENTER key to confirm, “Calibration” indicator begins flashing. Wait for the measured value to stabilize, the display shows “0.1/CAL2”. The meter

prompts you to continue with second point calibration.

7. Rinse the Ion Selective Electrode with distilled water. Dip the electrode into corresponding calibration solution. Stir the sensor gently.

8. Press ENTER key, “Calibration” indicator begins flashing. Wait for the measured value to stabilize, the display shows “1/CAL3”. The meter prompts you to

continue with third point calibration.

9. Repeat steps 7 to 8 above until the display shows “END”, the meter returns to measurement mode automatically. Calibration is completed.

EXIT THE CALIBRATION:

During the calibration process, if you want to exit calibration, press MEAS key, the meter will return to measurement mode immediately.



I931 Benchtop Ion Meter

Ion Calibration Report

This program lets you check the slope of the Ion Selective Electrode.

1. Press MR key in the ion measurement mode, the meter shows “LOC/P-01”.

2. Press or key until the display shows “ELE/P-02” (Electrode Diagnosis).

3. Press ENTER key to confirm, the meter shows the last calibration date (Format: mm-dd).

4. Press key, the meter shows calibration point and its slope.

5. After the browsing, press MEAS key to exit the current mode.

……….Calibration Point

……….Slope

I931 Benchtop Ion Meter

Temperature Calibration

During the measurement, when automatic temperature compensation is enabled, if the temperature reading displayed differs from that of an accurate

thermometer, you need to calibrate the meter.

1. Press and hold the oC key for 3 seconds to enter temperature calibration mode, the display shows current temperature reading.

2. Press or key to set the temperature value.

3. Press ENTER key to confirm. Calibration is completed.

Ion Concentration Measurement

1. Press MODE key until the meter shows indicator.

2. Rinse the Ion Selective Electrode thoroughly with distilled water. Dip the electrode into the sample solution.

3. If your sample is belong to low concentration liquids or some interfering ions are present in the solution, we suggest you that adding the Ionic Strength

Adjuster into the sample solution.

4. Stir the sensor gently. Wait for the reading to stabilize, record the measured value on the display.

mV Measurement

Press MODE key until display shows measurement unit “mV”. Rinse the electrode thoroughly with distilled water. Dip the electrode into the sample solution.

Wait for the measured value to stabilize, record the reading on the display.

Hold Function

I931 benchtop ion meter contains two data hold modes. When the Auto-Hold function is enabled, the meter will automatically sense a stable endpoint

reading and freeze it, “HOLD” indicator appears on the display. If the Auto-Hold function is disabled, press key, the meter will immediately freeze currently

displayed value. Press the key again to resume measuring.