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pH/Cond meter SevenDirect SD23 Pure H2O

Straight to the point.SD23 pH/conductivity meter with InLab Pure-Pro ISM pH/temperature sensor and InLab 741 ISM conductivity/temperature sensor for measurements in pure water. Includes an efficient electrode arm.

Mastered in no time

Large color touchscreen provides direct measurement and easy data entry. Instructions guide users through the sensor calibration process.

Tracks your records

The instrument stores data like timestamp, sample and sensor ID with every measurement and prints or exports records automatically.

Tough enough

Closed connector compartment and replaceable cover keep the instrument safe from dust and spills, even with sensors attached (IP54 in-use).

Material No.: 30671568

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Specifications - pH/Cond meter SevenDirect SD23 Pure H2O
Parameter
 Conductivity
pH
ORP
Channel
 Dual-channel
Version kit
 Ready-to-measure kit
Sensor
 InLab® 741-ISM
InLab Pure Pro-ISM
pH resolution
 0.1
0.01
0.001
pH accuracy (±)
 0.002
Conductivity measuring range
 0.001 μS/cm – 2000 mS/cm
Conductivity resolution
 0.001 – 2
Conductivity accuracy (±)
 0.5 %
mV resolution
 1
0.1
mV accuracy (±)
 0.1
Temperature Range
 -30 °C – 130 °C
Temperature resolution
 0.1 °C
Temperature accuracy (±)
 ±0.1 °C between 0 °C and 100 °C
Ease of Use
 Touch screen
Calibration Support
Guided Verification
Simple Methods
Multilingual Menu
Security and compliance
 GLP
User management
Memory size
 2000 standard measurements
Data Transfer
 PC
Printer
USB stick
Flexibilty and modularity
 Stirrer
Barcode reader
Protection Rating
 Watertight and dustproof (IP54)
Sensor Included
 Sensor for pure water
Display Type
 7" Color TFT
Meter Type
 Benchtop Dual-Channel
mV measuring range
 -2000..2000 mV
Dimensions
 195x205x65 mm
Weight
 850 g
Connectors
 BNC
RCA / Cinch
Mini-DIN (conductivity)
USB A (x2)
USB B
Mini-DIN (for stirrer)
Compatible with Intelligent sensor management (ISM)
 Yes
Portable Meter
 No
Product Line
 SevenDirect

Pure water specialist sensors

InLab Pure-Pro ISM and InLab 741-ISM are specialist sensors for pH, temperature and conductivity measurements in pure water. They are specifically designed to achieve high accuracy in this challenging sample.

Electrode arm for efficient operation

The EasyPlace electrode arm makes placing the sensor in the sample or buffer container easy. Dedicated positions for cleaning and storage support correct sensor handling. Vertical and horizontal movements facilitate precise positioning, even with one hand.

Protect critical settings

A two-level user management protects the most important settings. Operators retain the flexibility to individually set preferences like language and screen brightness.

Display adapts to your needs

View detailed measurement information on one measurement screen – or focus on the result only and maximize readability with the uFocus mode.

Two Parameters in One Device

Measure pH and conductivity with one instrument – simultaneously or separately as the application requires.

Documentation

Datasheets

SevenDirect Datasheet
Datasheet: SevenDirect pH/Cond/Ion Meters
In this datasheet you will learn how SevenDirect™ benchtop meters provide accurate pH, ion, and conductivity measurements, combined with ease of use,...
SevenDirect SD20 Datasheet
Datasheet: SevenDirect SD20 pH/mV Meters
In this datasheet you will learn how SevenDirect™ SD20 meters provide accurate pH and ORP measurements, combined with ease of use, data handling optio...
SevenDirect SD23 Datasheet
Datasheet: SevenDirect SD23 pH/Conductivity Meters
In this datasheet you will learn how SevenDirect™ SD23 meters provide accurate pH and conductivity measurements, combined with ease of use, data handl...
SevenDirect SD30 Datasheet
Datasheet: SevenDirect SD30 Conductivity Meters
In this datasheet you will learn how SevenDirect™ SD30 meters provide accurate conductivity measurements, combined with ease of use, data handling opt...
SevenDirect SD50 Datasheet
Datasheet: SevenDirect SD50 pH/Ion Meters
In this datasheet you will learn how SevenDirect™ SD50 meters provide accurate pH and ion concentration measurements, combined with ease of use, data...

Manuals

SevenDirect SD20 Reference Manual
Reference Manual: SevenDirect SD20 pH/mV Meters
This reference manual provides full instructions and technical guidance for safe and correct usage of the SevenDirect™ SD20 pH/mV meters.
SevenDirect SD30 Reference Manual
Reference Manual: SevenDirect SD30 Conductivity Meters
This reference manual provides full instructions and technical guidance for the safe and correct usage of the SevenDirect™ SD30 conductivity meters....
SevenDirect SD23 Reference Manual
Reference Manual: SevenDirect SD23 pH/Cond Meters
This reference manual provides full instructions and technical guidance for safe and correct usage of the SevenDirect™ SD23 pH/conductivity meters.
SevenDirect SD50 Reference Manual
Reference Manual: SevenDirect SD50 pH/Ion Meters
This reference manual provides full instructions and technical guidance for safe and correct usage of the SevenDirect™ SD50 pH/ion meters.
SevenDirect Quick Guide
Quick Guide: SevenDirect pH/Cond/Ion Meters
This quick set up guide provides a brief instruction about how the SevenDirect™ meters should be installed, connected, commissioned, and maintained.

Know-how

Efficient and Safe pH Measurements
Efficient and Safe pH Measurements
Ensure efficient and safe pH measurements with our 7 tips and tricks to improve your work environment.
pH Theory Guide
pH Measurement Theory Guide
Learn the important concepts of pH theory and measurement practices. Download the guide for free!
Conductivity Theory Guide
Conductivity Measurement Theory Guide
Learn the important concepts of conductivity theory and measurement practices. Download the guide for free!

Accessories

pH Accessories for Meters and Sensors

Electrode Arm EasyPlace Complete
The EasyPlace electrode arm supports efficient measurement and calibration. With perfect vertical movement, spillage risks are minimized. Includes parking beaker, parking beaker insert and sachet holder.

Material No.: 30671569

Magnetic Stirrer EasyMix
Magnetic stirrer EasyMix for use with SevenDirect meters. The EasyMix can be controlled manually or automatically by the SevenDirect meter.

Material No.: 30671570

Power supply 18W
18 W Power supply; Does not include country-specific plug (order plugs separately with article number 30671583)

Material No.: 30671580

Plug Set power supply 18W
Set of country-specific plugs for Power supply 18 W (30671580)

Material No.: 30671583

Protective cover SevenDirect
Replaceable protective cover for SevenDirect meters

Material No.: 30671529

pH Software and Automation

License EasyDirect pH
EasyDirect pH Software License

Material No.: 30323214

Consumables

Conductivity Standards

Cond Standard 12.88mS, 250mL
Amazing solutions

Material No.: 51350094

Cond stand. 12.88 mS/cm, sachets 30x20mL
Sachets for Effective Calibration

Material No.: 51302050

Cond standard 84 µs/cm, 250 mL
Amazing solutions

Material No.: 51302153

Cond standard 500 µs/cm, 250 mL
Amazing solutions

Material No.: 51300170

Cond Standard 1413µS, 250mL
Amazing solutions

Material No.: 51350092

Cond stand. 1413 uS/cm, sachets 30x20mL
Sachets for Effective Calibration

Material No.: 51302049

Laboratory Conductivity Sensor

Cond probe InLab 731-ISM
A 4 graphite poles conductivity cell with integrated temperature probe and ISM. Designed for general applications like standard and high conductivity samples.

Material No.: 30014092

Cond probe InLab 741-ISM
A 2 steel poles conductivity cell with integrated temperature probe and ISM. Ideal for low conductivity range samples like pure water and ultra pure water.

Material No.: 30014094

Laboratory pH Buffer

Technical buffer pH 4.01 250mL Bottle
Reliable All-rounders

Material No.: 51350004

Technical buffer pH 7.00 250mL Bottle
Reliable All-rounders

Material No.: 51350006

Rainbow I (3 x 10 sachets 20 mL)
Sachets for Effective Calibration

Material No.: 51302068

Rainbow II (3 x 10 sachets 20 mL)
Sachets for Effective Calibration

Material No.: 51302080

Bottle Rainbow Kit 1, 6x250mL
Reliable All-rounders

Material No.: 30095312

Bottle Rainbow Kit 2, 6x250mL
Reliable All-rounders

Material No.: 30095313

Laboratory pH Sensor

pH Sensor InLab® Routine Pro-ISM
A glass-body, combination pH electrode with integrated temperature sensor, MultiPinTM head and ISM. Designed for general laboratory applications; fast and highly chemical resistant.

Material No.: 51344055

pH Sensor InLab® Max Pro-ISM
A glass-body, combination pH electrode with integrated temperature sensor, MultiPinTM head and ISM. Designed for general laboratory applications; highly reproducible and fast.

Material No.: 30248830

pH Sensor InLab® Science Pro-ISM
A glass-body, combination pH electrode with integrated temperature probe, MultiPinTM head, bridge electrolyte and movable glass sleeve junction. Designed for difficult applications like organic solvents, emulsions and protein containing samples.

Material No.: 51344072

pH Sensor InLab® Expert Pro-ISM
A combination pH electrode with integrated temperature probe, PEEK shaft, fixed cable and ISM. Designed for general applications in the lab and outdoor; robust and low maintenance.

Material No.: 30014096

pH Sensor InLab® Micro Pro-ISM
A glass-body, micro combination pH electrode with integrated temperature sensor, MultiPinTM head and ISM. Ideal for measuring in very small vessels like test tubes, vials and cuvettes.

Material No.: 51344163

pH Sensor InLab® Viscous Pro-ISM
A glass-body, combination pH electrode with integrated temperature probe, SteadyForceTM and a MultiPinTM head. Designed for viscous samples like cosmetics, paints and glue.

Material No.: 51343151

pH Sensor InLab® Pure Pro-ISM
A glass-body, combination pH electrode with integrated temperature probe, MultiPinTM head, bridge electrolyte and a fixed glass sleeve junction. Designed for ion-weak-samples like ultra-pure water, deionized water

Material No.: 51344172

pH Electrolytes and Maintenance Solutions

All-in-One Kit 1, 6x250mL
This kit contains a 250 mL bottle of the following items: technical pH buffers pH 4.01, pH 7.00, pH 9.21, 3 mol/L KCl electrolyte, pepsin cleaning solution and InLab storage solution.

Material No.: 30095314

All-in-One Kit 2, 6x250mL
This kit contains a 250 mL bottle of the following items: technical pH buffers pH 4.01, pH 7.00, pH 10.00, 3 mol/L KCl electrolyte, pepsin cleaning solution and InLab storage solution.

Material No.: 30095315

Software

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pH/Cond meter SevenDirect SD23 Pure H2O