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The oxidation stability of biodiesel can easily be determined with the 873 Biodiesel Rancimat from Metrohm, a modern and reliable instrument with a 3 years’ warranty. In addition to reliable hardware and easy operation, it offers all the comfort to be expected from a PC-controlled instrument.
The method: oxidation stability according to EN 14112
The determination of the oxidation stability according to EN 14112 is an accelerated oxidation test. The sample is held in a sealed reaction tube at a constant temperature of 110 °C while a continuous flow of air is passed through the sample. The fatty acid methyl esters (FAME) in the sample are oxidized to peroxides as the primarily oxidation products. After some time, the fatty acids are completely decomposed into the secondary oxidation products. In addition to volatile organic compounds, these are low-molecular organic acids, mainly formic and acetic acids. An air flow transports them to a measuring vessel containing distilled water as the absorption solution.
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PetroOXY
Automatic Rapid-Oxidation-Stability Test of FAME
a new method to evaluate the storage stability of liquid fuels and offer the opportunity of an automatic instrument.
Both, the method and the instrument are designed in a way that they do not exceed the average test-time of other methods specified for releasing a fuel from any production facility or other storage.
Suitable for: Biodiesel, Biofuel, Diesel, Gasoline, Motor Fuel, Motor Gasoline
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Details
Products: Meters
Parameters: pH ORP
K100 W PR
Art.-No.: 105000K
User-friendly controller for pH/ORP, wall-mounting enclosure
Series:K100
Delivery time: 2 days
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WALL MOUNTING INSTRUMENTS
with one "ON or OFF" threshold and one output function 4 - 20 mA :
- pHM 200 : pH meter
- CM200 : conductivity-meter
- OXYM200 : oxymeter
- CLM200 : chlorometer
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Biochemical oxygen demand BOD determination is still one of the most important parameters in water resource management. It can be used to evaluate the impact of biodegradable substances in waters and waster water. With its OxiTop® systems, WTW offers a unique, modular and mercury-free instrument system. It is not only suitable for BOD determination, but also for measuring biodegradability and depletion.
In the course of growing environmental consciousness, microbiological degradability tests have become increasingly important. These can be, for example, soil surveys from waste sites or environmental impact surveys for new chemical substances. The necessary respiration measurements for anaerobic or aerobic degradation can be easily carried out using the OxiTop®-C systems with excellent analysis. WTW offers a wide range of application specific packages with appropriate sample vessels.
The advantages of OxiTop® and OxiTop® Control: simple operation, improved controllability and non-toxicity, and measuring ranges of up to 400 000 mg/l BOD (with OxiTop® Control OC 110). As the measured pressure is automatically converted the values can be directly read as mg/l BOD
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The system: for pH, cond. and O2 - reliable, flexible, simpler than ever
High Quality Digital - HQD-meter
means complete, coordinated, stable meters with practical accessories and intelligent electrodes. What makes HQD special is the newly developed INTELLICAL electrodes, which store all relevant characteristic parameters in digital form.
- Digital INTELLICAL electrodes and metes are interchargeable (Mix Match principle).
- Digital INTELLICAL electrodes are recognised automatically.
- The calibration data is stored in the INTELLICAL electrodes, and the control intervals can be programmed to enable application - specific status checks.
- All INTELLICAL electrodes with integrated temperature sensor.
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- Multiparameter measurements
- Quick calibration in each mode
- 2 sensor inputs (pH and conductivity/dissolved oxygen)
- 199 results stored
-You can read your results at a glance on the large backlit LCD.
-Store your results automatically with the date and time.
-Follow a user-friendly icon-based menu.
-Use colour-coded bottles for error-free calibration.
-Give your electrodes a new lease of life with a single click thanks to the cartridge concept.
-Built-in RS232 connection to document and archive measurements results onto a PC
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The inoLab® benchtop meters of WTW, Weilheim, Germany, have been relaunched in April 2004. Now, an appropriate meter is available for almost every application :
1) Easy-to-operate, reliable, with big, bright display, battery or mains operated: inoLab® 720 series for pH/ORP, conductivity, dissolved oxygen (Multi 720).
2) Precise, communicative, with datalogger, memory, digital/analog RS 232 interface, printer (optional), GLP supporting: inoLab® 730 for pH/mV, dissolved oxygen, conductivity.
3) Enhanced methods for ISE measurement, menu-driven, backlit graphic display: inoLab® 735 pH/ION.
4) Communicative, high-performance, PC-controllable meters with enhanced possibilities like digital recorder or user administration: inoLab® 740 series, for all parameters, additionally BOD-measuring system.
5) Outstanding performance for special tasks in highly demanding applications: inoLab® pH/ION/Cond 750 with two high-impedance inputs, simultaneous measuring of three parameters (2 times pH or ISE or ORP and conductivity), PC-controllable, individual determination of conductivity temperature coefficients. Datalogger, memory, interface included. With user administration and password protection.
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Thermo Fisher Scientific offers a comprehensive range of Russell pH electrodes and electrochemical sensors. The full range of products includes meters, electrodes and ancillaries for the measurement of pH, ORP, conductivity, dissolved oxygen and specific ions. Water test strips and kits complement the range of products for the potable water and environmental testing markets. Thermo Fisher Scientific is committed to providing the best instrumentation for a wide array of laboratory analyses.
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Every industrial, commercial or natural water source contains dissolved solids or salts. These impurities contribute to the scaling and corrosion of equipment, affect industrial and commercial processes and contribute to poor taste and other deficiencies in drinking water.
The redesigned TechPro IITM TP1 (formerly AR1 - TDS/COND/TEMP) and TPH1 (formerly ARH1 - TDS/COND/pH/Temp) models include greatly improved features and performance. Features to include advanced microelectronics, easy keypad calibration, memory and a waterproof enclosure
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Precise measurement is a product of the optimal interaction between electrode, calibration and meter. The obvious next step for us has been to develop meters to perfectly match our electrodes and buffer solutions. The result: The new Lab series of pH and conductivity meters from SCHOTT Instruments. These instruments are setting new standards for electrochemical measurement.
pH-meter Lab 850
The Lab 850, our “starter” model in the new series, comes with the advanced measuring algorithm specially adapted to SCHOTT Instruments’ electrodes. The result is a calibration and measurement in usual precision – but in a much shorter time!
pH-meter Lab 860 and conductivity meter Lab 960
Whether conventional via RS232 or modern via USB slave – both interfaces to the PC are integrated in the Lab 860 and Lab 960. No adapter is required.
pH–meter Lab 870 and conductivity meter Lab 970
The quality controller’s dream: A measuring instrument automatically recognizes the electrode! The new sensors with unique identification send their specific data to the measuring instrument … wireless! Thus the Lab 870 and Lab 970 always use the correct calibration for the identified sensor and help you to avoid errors in measurement.
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Whether for testing in the laboratory, pilot plant or production, the YSI 7100 MBS is a powerful, upgradable Multiparameter Bioanalytical System with core features that make this platform a productivity tool for today and into the future.
The unit builds upon the accuracy and precision of YSI's proven sensor technology with improvements in efficiency, flexibility, and intelligence.
Capable of measuring six distinct parameters simultaneously, the system can be customized with up to three sensor modules-each containing up to two chemistry sensors. Existing chemistries include the following:
Glucose-Sucrose-Lactate-Glutamate-Glutamine-Ethanol-Methanol-Ammonium-Potassium-Galactose
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HEITOLAB MPC 350 Multiparameter:
- multiparameter with microprocessor. It ensures the continuous measurement of four parameters : pH, redox, conductivity, temperature
- one analog output 4 - 20 mA for each parameter and one RS 232 digital output.
- conductivity : 6 measuring ranges with automatic or manual range change: 200 mS, 20 mS, 2 mS, 200 µS, 20 µS, 2 µ S
- temperature compensation : automatic if a Pt 100 probe is plugged in
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One high accuracy multi-range sensor measures four parameters (Conductivity, TDS, Salinity and Temperature)
* Autoranging meter offers 3 ranges to measure from pure water to salinity solution to waste, boiler and cooling water using the same conductivity cel
* 6 selectable units of measure:
µS, mS, ppm, ppt, mg/L, and g/L
* Internal memory stores up to 15 labeled readings for easy recall
* Adjustable Conductivity to TDS ratio factor from 0.4 to 1.0
* Self calibration on power up
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The new CarboQC from Anton Paar is a portable, robust measuring instrument for the determination of dissolved CO2 in beverages. The analysis is based on the patented Multiple Volume Expansion method to eliminate the influence of other dissolved gases such as air or nitrogen. The instrument is highly accurate, simple to operate, requires low sample volumes and provides rapid results.
Be it soft drink production, brewing industry, mineral water production, wine or even sparkling wine production, the CarboQC allows the precise measurement of the CO2 content in less than two minutes.
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Four-digit display for full 9999 readings with autoranging capability up to 200 ppt/200 mS
Powerful microprocessor-based surface-mount circuitry
Display prompts for simple pH calibration
Real Time Clock
Memory for 100 readings with Date & Time Stamp
Factory-calibrated with NIST traceable solutions, each PoolPro may be supplied with both certification of traceability & NIST traceable solutions for definitive calibration
pH/ORP Sensor protective cap
Fully automatic temperature compensation
Auto-shutoff maximizes the life of the single 9V battery to more than 100 hours/5000 tests
Non-volatile microprocessor provides data back-up, even when the battery is changed; this assures all calibrations and memory data are retained
Extended life pH/ORP sensor is user-replaceable in the field
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Microprocessor-controlled instrument amplifier with integrated controller for water analysis of:
pH
Redox
Ion concentration
Electrolytic conductivity (conductive and inductive)
Active chlorine concentration
Total chlorine concentration
Chlorine dioxide concentration
Oxygen concentration
Ozone concentration
Hydrogen peroxide concentration
Features:
Backlit 2-line alphanumeric LC display with measuring units
Clear text human-machine interface with only 5 touch keys
Password protection against unauthorized operation
Temperature compensation manual or via Pt 100 / 1000 / NTC 22 kOhm (3-wire)
Galvanic separation of inputs and outputs
2 analog outputs, user configurable
Integrated controller with 2 switching points
2 limit switches with time-delay, allocated to alarm relay
Display of operating and status messages
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Dissolved Oxygen Probes
Select from a full range of Orion Dissolved Oxygen Probes for both field and laboratory applications.
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Membrane covered galvanic
oxygen sensor
• Temperature compensation
• Up to 6 months usage of membrane
• High signal resolution
• Rapid response
• Waterproof sensor (IP 68 – 2 bar)
• Incl. calibration vessel OxiCal®-SL
• Membrane leakage monitoring
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HI 2300 performs EC, TDS (Total Dissolved Solids), percentage of NaCl and temperature measurements. The auto-ranging feature for EC and TDS measurements automatically sets the resolution suitable to the tested sample.
All measurements can be temperature compensated at 20 or 25°C and the compensation coefficient is selectable by the user. The automatic temperature compensation can also be disabled for measuring the actual conductivity value. The stability indicator on the LCD ensures accuracy.
Conductivity readings are performed by applying an alternate current to the 4-ring probe which creates a variable voltage directy proportional to conductivity.
The GLP feature allows users to store and recall data about system status.
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Concentration measurement (System Aquasant-MT)
The concentration measuring system measures the product concentration of organic product mixtures with one variant, taking also in account the product temperature. Surveillance of chemical reactions directly in the production line (Determination of the end point).
Measuring principle: High resolution impedance measurement
Fast product temperature measuremnt
Adaptive automatic temperature linearization
Concentration measurement
digital (Relay output) pre-alarm/alarm
analog (0/4 - 20 mA) programmable
RS-232-interface and visualization software for parameterization, online data input or data evaluation from the memory
Self controlled measuring circuit
Hazardous area version
II (2) G [EEx ia] IIC ; SEE 99 ATEX 2469; CE 0499 EMV STS 024 CE
Sample of concentration measurements of organic mixtures with one variant
Ethyl alcohol (Ethanol) in 1-propanol
Ethyl alcohol (Ethanol) in toluene
Water content in isopropanol
Acetic anhydrid in acetic acid
0-1 % water in formic acid
15 - 20 % N-Bulitium in toluene
0-10 % ethyl alcohol (Ethanol) in demin. water 1-7 µS
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The total TDS is a mass estimate and is dependent on the mix of chemical species as well as the concentration while conductivity is only dependent on the concentration of chemical species. Some applications require the measurement of Total Dissolved Solids (TDS) in mg/L, parts per million (ppm) or parts per thousand (ppt). The TDS concentration can be obtained by multiplying the conductivity
value with a factor which is empirically determined. Eutech offers meters that allow the direct reading
of TDS values. These include the TDSTestr™ series, EcoScan TDS 6, CyberScan Standard Portables CON 11, CON 110 and Waterproof Portable CON 410. Bench meters for advanced level laboratory research are the CyberScan CON 510, CON 1500 and colour touchscreen research-grade CON 6000.
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OX60
WPA's OX60 meter is based on proprietary Application Specific Integrated Circuit (ASIC) design and uses a new low cost 12mm diameter galvanic DO probe that is easy to use. This compact meter is ideal for indoor and outdoor applications.
OX100
The OX100 Dissolved oxygen meter is designed to overcome the traditional problems with field calibration and lack of reliability associated with many DO instruments.
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DO stands for Dissolved Oxygen, which is the measure of amount of gaseous oxygen dissolved in a solution. In theory, the amount of DO in a solution is dependent on 3 factors, namely temperature, salinity and atmospheric pressure. The measurement of DO requires a special DO electrode that is made up of an anode, a cathode, electrolyte solution and a gas permeable membrane.
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The YSI 5300A Biological Oxygen Monitor is ideal for a variety of teaching and research applications in the laboratory. The 5300A measures oxygen consumption and evolution in a variety of samples including respiration, oxidative activity, and cellular metabolism studies.
The 5300A utilizes Clark-type polarographic oxygen probes immersed in magnetically-stirred sample chambers, and produces oxygen uptake or evolution curves in two to 15 minutes. This two-channel instrument offers simultaneous display, recorder outputs, and RS-232 serial output for monitoring the results of each evaluation of samples.
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Measurement and control instrument for dissolved oxygen
- Easy and safe operation by plain text menu guidance
- Safety by password function
description
The K 100 (W) O2 is a sophisticated single-channel instrument for measuring and control dissolved oxygen. Additionaly temperature measurement of the measuring media is possible. The instrument is available in a panel mounted housing (K100 O2) and in a wall mounted housing (K 100 W O2).
applications
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Model HPM 4/6 portable vacuum meters are compact, hand-held, digital display, battery operated control units. When combined with the Hastings Instruments rugged thermopile sensors, they become vacuum instruments designed for portability and ease of use in applications where AC power is not readily available.
The lightweight control units operate with a standard 9 volt battery, and are available for display in units of Torr or mbar. Additionally, they can be calibrated to an individual sensor or set for average sensor output to test many different sensors of the same type. They are switchable to offer display for both the DV-6 (0.001 to 1 Torr) and the DV-4 (0.01 to 20 Torr) sensors without re-calibrating. These sensors are rugged, noble metal sensors which are resistant to corrosion and can be ordered with a variety of system connections to meet your system's requirements such as VCR(R), KF 16, KF 25, Glass, MiniConflat™, etc.
VCR is a registered trademark of Cajon Company.
MiniConflat is a trademark of Varian Associates, Inc.
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