Products & ReviewGeneral Lab

917 Coulometer with generator electrode with diaphragm

Name: 917 Coulometer with generator electrode with diaphragm
Rating: 4.7 (1 reviews)

Metrohm AGAvailable: Worldwide

The 917 Coulometer is a compact titrator for coulometric water determination in accordance with Karl Fischer. ''Reduced to the max'' – operating module, stirrer and pump are integrated in the 917 Coulometer for rapid reagent replacement. This saves a great deal of space on the laboratory table. Recommended measuring range: 10 µg…200 mg absolute water Coulometry is the ideal method for water content determination in liquids…

4.7/5.0

|1 Review|Write your own Review

Request Pricing

Receive your quote directly from the manufacturer.

Reviews

Reviews
Description

Average Rating 4.7

|1Scientists have reviewed this product

Ease of Use

After Sales Service

Value for Money

Write your own review

Quick and easy!

Average Rating 4.7

Application Area:

Analyze the Watercontent in Oil Samples or in Biodiesel.

The Instrument is very easy to handle. The Instruction for the Instrument is simple, its a low chance to make any mistakes. The stirrer should always stir the solution, that's the most impost rant thing! When the stirrer doesn't run, the diaphragm gets a Iod layer. It takes about 1-4 minutes to get results!

Review Date: 1 Dec 2023 | Metrohm AG

Recommended measuring range: 10 µg…200 mg absolute water
Coulometry is the ideal method for water content determination in liquids, solids and gases in the trace range. In addition, coulometry is an absolute method and thus no titer determination is necessary.

The 917 Coulometer now also fulfills FDA Regulation 21 CFR, Part 11. This means you are always on the safe side when it comes to audits.

Product Overview

917 Coulometer with generator electrode with diaphragm

Metrohm AG

4.7/5.0

|1 Review

Request Pricing

Links

Metrohm AG Manufacturer Website

Featured products

Request Quote for All Products

901 Titrando for Karl Fischer Titration
Metrohm AG
901 Titrando - The Karl Fischer Titrando for the modern titration laboratory Thanks to its modular concept the Titrando System can be optimally adapted to any application. It meets the requirements of FDA Regulation 21 CFR Part 11. Profit from its intelligence and multiple communication options (USB, RS 232C, Remote)!In addition to the Karl Fischer mode (KFT), this high-end titrator also includes the SET mode, which means that titrations can be carried out to a predefined endpoint. "ITrode ready": The high-resolution, galvanically separated measuring interface - now also with additional digital measuring input for intelligent electrodes «iTrodes» - means that it is also possible to make high-precision pH measurements Transparent operation – thanks to specially adapted dialogs, the Titrando accelerates method development and simplifies routine operation. The large color screen of the Touch Control informs you about the instrument condition and offers uniquely comfortable operator guidance. For operation via a PC the appearance is exactly the same. Numerous worked-out methods and titration examples make familiarization easier. Method templates and calculation formula templates are available for developing your own methods. Extended titration and evaluation parameters open up new applications. More intelligence: The Data Chip of the Dosing Unit contains all important titrant data. Thanks to the sophisticated Liquid Handling, automatic reagent exchange is now also possible in volumetric KF titration. The 901 Titrando works with Dosing Units, which are ideal for handling KF reagents. Parallel titration – a Titrando can work with two titration cells at the same time (requires tiamo).
(17)
902 Titrando – pH STAT Titrator and Synthesis Controller
Metrohm AG
The 902 Titrando expands the Titrando system by adding the modes pH STAT titration and controlled dosing. STAT titration The determination of the activity of an enzyme or the monitoring of the release kinetics of antacid drugs requires a titrator that rapidly adjusts a predefined pH value and keeps it constant over a long time period. The 902 Titrando's controller has been optimized for this task and is among the best available on the market. Tandem dosing is a new feature offered by the 902 Titrando. To avoid a break in dosing when the buret is refilled, a second buret takes over the dosing operation without any interruption. This means that fast reactions and those that have a high reagent consumption can be monitored without any loss of accuracy.Controlled dosing The tasks to be performed in the synthesis laboratory differ from those in titration. Typical synthesis work involves maintaining constant a pH value or performing a multiple dosing operation under strictly defined conditions: A preset volume has to be added to a solution during a given time span. During the controlled dosing procedure, the parameters pH (or potential) and temperature are continuously monitored and registered. This results in a complete documentation of the synthesis sequence. Dosing can also be carried out continuously in the tandem mode with two Dosinos. Compatible with all existing sensors Despite its new digital measuring interface and intelligent sensors, the Titrando with combined analogue and digital measuring amplifier also supports conventional sensors. This consists of one high-impedance and one polarised measuring input, a separate reference input and an input for a Pt 1000 or NTC temperature sensor. The resolution of the inputs is 0.1 mV or 0.001 pH. Up to two galvanically separated measuring interfaces can be installed. A new feature of the 902 Titrando is its ability to perform control tasks. External instruments can be controlled by means of freely programmable TTL signals or by communication via RS 232 interface. This opens up the possibility of remotely controlling external heating or cooling apparatus, pumps or similar devices.
(0)
855 Robotic Titrosampler – High-performance titration automation with minimal footprint
Metrohm AG
The 855 Robotic Titrosampler combines the highest quality standards in titration – based on the Titrando technology – with top-performance automation.
(7)
859 Titrotherm
Metrohm AG
Thermometric titration is a very versatile determination method and an ideal complement to potentiometric titration. In principle it is suitable for any reaction that produces a sufficiently large temperature change in the sample solution. It is particularly suitable for applications for which no suitable potentiometric sensor is available, for which no suitable reference electrode is available, in which the sample affects the indicator electrode or destroys it, for which no solvent is available that is suitable for potentiometry. The 859 Titrotherm combines innovative sensor technology with Metrohm's titration know-how. The temperature sensor based on semiconductor technology (thermistor), has a short response time of 0.3 s and a high resolution of 10-5 K. This makes the Thermoprobe the ideal sensor for thermometric titration, as it can follow any change in temperature quickly and accurately. Metrohm's Dosino technology has defined a new standard for volumetric titration. The Dosing Unit with its drive motor is mounted on the reagent bottle and thus guarantees maximum precision with minimum space requirements. The clearly laid out Titrotherm software allows adaptation of the screen view to the particular method parameters and thus provides rapid access to important commands or parameters. The endpoints are determined by calculating the first and second derivatives of the titration curve; by means of additional optimization parameters, the reproducibility can be improved even further.
(1)
870 KF Titrino plus
Metrohm AG
An easy-to-use, precise and reliable Karl Fischer titrator. The favorably priced 870 KF Titrino plus is Metrohm’s new Karl Fischer titrator for volumetric water determinations. It can be used to determine water contents from a few ppm up to 100% reliably and accurately in solid, liquid and gaseous samples. With its operating interface designed for routine users, the 870 KF Titrino plus is so easy to use that it only requires a short familiarization period. Because of its robustness, it is also the ideal titrator for routine determinations. The advantages of the new 870 KF Titrino plus at a glance: • Straightforward installation • Easy operation thanks to predefined methods • Excellent precision thanks to the high-resolution measuring input • Live curve for recognizing side-reactions • Overflow protection for increased operating safety • Compact USB printer as an option
(1)
869 Compact Sample Changer
Metrohm AG
The 869 Compact Sample Changer allows rapid and very easy automation of small sample series. With a total of 12 positions, a variety of titrations can be carried out fully automatically with the electrodes being cleaned or conditioned between determinations. The large and clearly arranged display keeps you updated on the status of the sample series. Urgent samples can be preferentially analyzed at any time. Laboratory space is both scarce and expensive – the footprint of the 869 Compact Sample Changer is similar to that of an analytical balance. The advantages of the 869 Compact Sample Changer at a glance: • Economical automation • Space-saving; 11 sample positions • Different method templates • Easy operation
(0)
860 KF Thermoprep
Metrohm AG
Thermal sample preparation in Karl Fischer titration. For various reasons many substances are not suitable for a direct Karl Fischer titration: – They release their water only slowly – The water is released at high temperatures only – The substances are poorly soluble in alcohols – They undergo side reactions with KF reagents – They contaminate the titration cell or the electrodes By using the KF oven method the above-mentioned problems can be avoided. The substance under investigation is heated in a hermetically sealed vial in the oven. The water vapor released is transferred to the titration cell by a carrier gas. This means that no noxious solubilizers have to be used, side reactions as well as matrix effects are absent and the contamination of the titration cell is avoided. Depending on the sample’s water content, the determination can be carried out either by coulometric or volumetric Karl Fischer titration.
(1)
856 Conductivity Module
Metrohm AG
The 856 Conductivity Module is the new conductivity meter from Metrohm. It measures with state-of-the-art conductivity measuring cells – five-ring measuring cells. They achieve high linearity without platinization of the cell and are maintenance-free. The five-ring cells also yield accurate measurement data irrespective of the immersion depth. Broad range of applications The 856 Conductivity Module is versatile and can be used: - to extend a Titrando with an additional measurement input for pH or ion measurement - as an integrated conductometer in conjunction with the software packages PC Control or tiamo™ (from version 2.0) - as a stand-alone conductometer together with the 840 Touch Control operating unit - as a fully automated conductometer combined with the 814 USB Sample Processor or 815 Robotic USB Sample Processor XL Thanks to the galvanically separated measuring input, pH and conductivity measurements can now be performed simultaneously in the same sample vessel. Regardless of the application – measurements always meet GLP and FDA requirements. For use with the latest conductivity measuring cell technology The 856 Conductivity Module’s new five-ring conductivity measuring cells provide a wide linear measuring range. In contrast to four-ring cells, the electrode can be fully immersed in the sample solution. In a stirred solution, this results in faster mixing within the measuring cell. Thanks to the removable cap, the conductivity measuring cells are very easy to clean. Plug-and-play functionality for numerous peripheral devices Two USB and four MSB ports make the 856 Conductivity Module incredibly flexible. Plug-and-play functionality means the user can connect a multitude of devices: - printers, sample changers, barcode readers, etc. - up to four stirrers and four 800 Dosinos
(1)
888 Titrando/ 890 KF Titrando
Metrohm AG
With the 888 Titrando for potentiometric titration and the 890 Titrando for Karl Fischer titration, Metrohm opens up the Titrando world for the price-conscious customer. Both instruments have been designed for routine analysis in titration laboratories and are aimed at all those who, with a restricted budget, nonetheless make the highest of demands in terms of usability, data management and automation, as well as traceability of analysis results.
(9)
815 Robotic USB Sample Processor XL
Metrohm AG
The highly efficient Robotic USB Sample Processor XL with two stations and four pump connections carries out complex laboratory automation tasks in combination with a Titrando. Together with the Swing Head the capacity is increased, for example, to 100 x 75 mL samples. The daisy-chain function of the MSB connections allows the direct control of Dosinos for «extended liquid handling» and/or of stirrers; including control cable. For rinsing the titration vessels and electrodes and for aspirating off the titrated solution up to four external peristaltic or membrane pumps can be connected. The methods are programmed with the handy Touch Control or PC-controlled - with the tiamo titration software. • Large sample volumes and large numbers of samples • Parallel operation • Automated liquid handling - pipetting • Karl Fischer automation • Automatic sample preparation • Two external titration stations
(0)
862 Compact Titrosampler
Metrohm AG
Compact and economic device for the automatic determination of dynamic (DET) and monotonic (MET) titrations with automatic equivalence point detection as well as SET endpoint titration. Compact and economic titration automat Easy installation and controlling Intelligent dosing unit with monitoring of the titrant as option Highest precision thanks to high resolution measuring interface Live curve Compact USB printer as option
(0)
851 Titrando Coulometer
Metrohm AG
The coulometric Karl Fischer Titration is the method of choice for low level water determinations (10 μg … 10 mg absolute water content) in liquid, solid and gaseous samples. As it is an absolute method a titer determination is not necessary. With the 851 Titrando coulometric titrations are carried out straightforwardly and quickly.
(2)
852 Titrando
Metrohm AG
Coulometer including generator electrode without diaphragm and complete volumetric titration cell. The coulometric Karl Fischer Titration is the method of choice for low level water determinations (10 μg … 10 mg absolute water content) in liquid, solid and gaseous samples. As it is an absolute method a titer determination is not necessary. With the 852 Titrando coulometric as well as volumetric Karl Fischer titrations are carried out straightforwardly and quickly.
(1)
900 Touch Control – Titration was Never Easier
Metrohm AG
The 900 Touch Control features a brilliant touch screen providing for a stunning visual experience and, due to the device’s network capability, a full range of laboratory data communication possibilities is available.
(0)
916 Ti-Touch Compact Titrator for Routine Analysis
Metrohm AG
"Reduce to the max" – this is the principle of the Ti-Touch. The compact titrator offers many features for routine analysis: Maximum system integration Buret, stirrer, dosing system and control module are in a single unit. Plug-and-play All system components are instantly recognized and ready for use. Personalized Touch-screen for fast method start Up to 14 methods can each be linked to a favorite icon on the touchscreen. Methods start at a single touch. Straightforward automation Up to 100 samples can be determined unattended. Incorrect results excluded All system components as well as measured results are monitored. Save and print data – without PC USB interface for printer, USB stick or barcode reader. Direct access to intranet and LIMS – without PC Save methods and results directly in your intranet or LIMS. Paperless PDF reports Generate forge-proof PDF reports and save them on a USB stick or in the intranet. The compact titrator comes in three versions: 916 Salt Ti-Touch 916 Oil Ti-Touch 916 Food Ti-Touch
(7)

902 Titrando – pH STAT Titrator and Synthesis Controller

Metrohm AG

The 902 Titrando expands the Titrando system by adding the modes pH STAT titration and controlled dosing. STAT titration The determination of the activity of an enzyme or the monitoring of the release kinetics of antacid drugs requires a titrator that rapidly adjusts a predefined pH value and keeps it constant over a long time period. The 902 Titrando's controller has been optimized for this task and is among the best available on the market. Tandem dosing is a new feature offered by the 902 Titrando. To avoid a break in dosing when the buret is refilled, a second buret takes over the dosing operation without any interruption. This means that fast reactions and those that have a high reagent consumption can be monitored without any loss of accuracy.Controlled dosing The tasks to be performed in the synthesis laboratory differ from those in titration. Typical synthesis work involves maintaining constant a pH value or performing a multiple dosing operation under strictly defined conditions: A preset volume has to be added to a solution during a given time span. During the controlled dosing procedure, the parameters pH (or potential) and temperature are continuously monitored and registered. This results in a complete documentation of the synthesis sequence. Dosing can also be carried out continuously in the tandem mode with two Dosinos. Compatible with all existing sensors Despite its new digital measuring interface and intelligent sensors, the Titrando with combined analogue and digital measuring amplifier also supports conventional sensors. This consists of one high-impedance and one polarised measuring input, a separate reference input and an input for a Pt 1000 or NTC temperature sensor. The resolution of the inputs is 0.1 mV or 0.001 pH. Up to two galvanically separated measuring interfaces can be installed. A new feature of the 902 Titrando is its ability to perform control tasks. External instruments can be controlled by means of freely programmable TTL signals or by communication via RS 232 interface. This opens up the possibility of remotely controlling external heating or cooling apparatus, pumps or similar devices.

(0)

Product Overview

917 Coulometer with generator electrode with diaphragm

Links

Featured products

901 Titrando for Karl Fischer Titration

902 Titrando – pH STAT Titrator and Synthesis Controller

855 Robotic Titrosampler – High-performance titration automation with minimal footprint

859 Titrotherm

870 KF Titrino plus

869 Compact Sample Changer

860 KF Thermoprep

856 Conductivity Module

888 Titrando/ 890 KF Titrando

815 Robotic USB Sample Processor XL

862 Compact Titrosampler

851 Titrando Coulometer

852 Titrando

900 Touch Control – Titration was Never Easier

916 Ti-Touch Compact Titrator for Routine Analysis

901 Titrando for Karl Fischer Titration

902 Titrando – pH STAT Titrator and Synthesis Controller

855 Robotic Titrosampler – High-performance titration automation with minimal footprint

859 Titrotherm

870 KF Titrino plus

869 Compact Sample Changer

860 KF Thermoprep

856 Conductivity Module

888 Titrando/ 890 KF Titrando

815 Robotic USB Sample Processor XL

862 Compact Titrosampler

851 Titrando Coulometer

852 Titrando

900 Touch Control – Titration was Never Easier

916 Ti-Touch Compact Titrator for Routine Analysis