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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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The Rapid Small Scale Oxidation Test (RSSOT)
ASTM D 7525 - for Spark Ignition Fuel (Gasoline)
ASTM D 7545 - for Middle Distillate Fuels
is a new method to evaluate the storage stability with the advantages of an automatic instrument.
The PetroOXY performs a massive reduction of testing time, compared to some other oxidation and storage stability test methods. This analyzer needs only a small sample and will provide the result within a few minutes, with high repeatability.
Suitable for: Gasoline (ASTM D 7525), Diesel / Biodiesel / FAME (ASTM D 7545), Grease, Oil, Food, Cosmetics etc.
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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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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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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 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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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 is the SCHOTT® Instruments Lab series of pH and conductivity meters from SI Analytics. 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 by SI Analytics. 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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The series FMC -5000 /VQ are field mounting 2 or 3 chemical variables, with relationship capabillity betwen each. They have direct input for chemical sensors and they give the control signal in the field, at the same time, they transmit the data by RS-485 Modbus. In option, communication by Radio or Ethernet networks, cable or WiFi mode, is possible through “gateway” adapters RMT, EMT or WMT-1000.
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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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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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Portable digital physicochemistry NEOTEK PONSEL
pH Redox, temperature, Disolved Oxygen, Turbidity, Conductivity
Always reliable measurements :
-Autocheck of the probe
-Probe status always displayed
Simplicity :
-Plug your probe and your system is immediatly ready to measure without verification
-Interchange your probe pH/ORP.T, Turbidity, Oxygen, conductivity...
High performances:
-Watertight terminal IP68 for field and laboratory use
-100 000 data memory
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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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CarboQC
CarboQC is a dissolved carbonation meter and gives you fast, accurate and reliable determination of carbon dioxide in beverages. If combined with the PFD Filling Device, sample is taken directly from the package into the measuring chamber of CarboQC - with no loss of any carbon dioxide during sample transfer.
Accurate and traceable CO2 measurement
* One instrument suitable for lab and at-line applications
* No influence of dissolved air (oxygen and nitrogen)
* Highly accurate absolute pressure sensor, no weather and sea level influence
* No adjustment with CO2 standards necessary
* Suitable for pressures of up to 10 bar (145 psi)
High-quality performance
* Simple and easy operation
* Data memory for 99 measurements
* Battery stack quickly rechargeable for flexible operation
* Two RS-232 interfaces for transferring measuring results to a printer or PC
* Filling, rinsing and measuring by pressing only one button
* Splash-proof, lightweight plastic housing
* Minimum bench space required
Fast and easy handling directly from the package - no degassing required!
* Combination with DMA 4100/4500/5000 for simultaneous determination of the CO2 content and density/Brix (PBA-S)
* Combination with Soft Drink Analyzer 2P for additional determination of Brix actual/Brix fresh/degree of inversion (PBA-SI)
* Combination with DMA 4500/5000 and Alcolyzer Plus Beer for additional determination of the alcohol content (PBA-B)
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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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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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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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Micro Processor Base Salinity Meter ( SM-850)
Model SM-850 Features:
_Portability and simplicity one-hand operation
_Dual display Salinity and Temperature
_Automatic Temperature Compensation
_Average calculation, interval measuring, gram-conversion
_Use highly accurate NTC temperature sensor
_Auto power off function
_CE-Mark approval
Specifications:
Low battery indication: The "Battery symbol " is displayed when the
battery voltage drops below the operating level.
Operating environment: 0 C to 50C, <75% R.H..
Storage environment: -20C to 60 C, 0 to 80% R.H.
with battery removed from meter.
Accuracy: Stated accuracy at 23 C +/- 5 C, <75% R.H..
Dimensions: 167mm(H) x 48mm(W) x 24mm(D).
Weight: Approx. 330g. (including probe and battery)
Temperature:
Sensor: Thermistor temperature sensor
Range: -20 C to 60C, -4 F to 140F
Resolution: 0.1 C / 0.1 F
Accuracy: +/-0.5 C ,0 C to 45 C;
+/-1 °C -20 C to 0 C, 45 C to 60 C;
+/-1 F : 32 F to 113F
+/- 2 F:-4 F to 32 F, 113 F to 140 F
Relative Salinity:
Relative Salinity:
Range: 0.1% to 10%
Temperature compensation: -5 C to 60C, Automatic Accuracy:
0% to 0.9% (+/- 0.1)
1.0% to 1.9% (+/- 0.2)
2.0% to 2.9% (+/- 0.3)
3.0% to 4.9% (+/- 0.5)
5.0% to 7.9% (+/- 1.0)
8.0% to 10.0% (+/-1.5, depend on the way of measuring)
Applications:
Water monitoring, Liquid Foods, Beverage
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Optical DO sensor without calibration nor maintenance.
Thanks to its Modbus RS485 output, this sensor is able to be connected directly to automates, datloggers or remote systems.
Fields of application : Fishfarming, wastewater, natural water, seawater
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ATI Model Q45D Dissolved Oxygen monitor provides reliable oxygen measurement and reduced maintenance costs. The galvanic dissolved oxygen sensor uses a rugged 5 mil Teflon membrane to resist mechanical abrasions and tears. The membrane serves as a barrier to allow molecular oxygen to diffuse into the reaction cell where it is reduced, producing a small current which is proportional to oxygen concentration. To keep the dissolved oxygen system nearly maintenance free, an optional Auto-Cleaner can be included to remove those materials that build up on the sensor membrane. The cleaning cycle is user selectable to maximize the cleaning effectiveness.
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Developed to meet all field and laboratory requierements, the Digital ODEON instruments combine the versatility of an easy-to-use, easy-to-read handheld unit.
Rugged, reliable and IP-67 waterproof, the ODEON measures dissolved oxygen with the new ODO optical probe, pH,ORP, conductivity, temperature, and turbidity.
Thanks to PONSEL plug and play digital probes, autodiagnostic and calibration data inside, you just have a total confidence in your readings. just measure !
You need a simple and robust mono-parameter instrument, purchase a ODEON Classic with one ultra low power probe (pH/ORP/T, DO, Conductivity or Turbidity)
You need a versatile instrument ? Purchase a ODEON OPEN ONE ! Thanks to the Open Technology, your one channel system will accepte all PONSEL probe.
Your application require simultaneously parameters from 2 probes, purchase the ODEON X
Available:
ODEON Classic line
ODEON Open line
ODEON X Line
ALWAYS READY TO MEASURE : Digital plug and play probes
ALWAYS CONFIDENCE : Autodiagnostic, status always displayed, GLP compliance
SIMPLICITY : Huge display and intuitive menus
HIGH PERFORMANCES : Mono/Multiparameters - 8 Mo Memory (100 000 datas),
FIELD INTRUMENTATION : IP67
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Measurements of dissolved oxygen (DO) in industrial processes serve to control the oxygen concentration, optimize the process and yield. Besides inline measurement the off- or near-line measurement system is often used for control at different sites with a compact portable transmitter/sensor system with data-logger, sampling device and interface to download stored measurement values.
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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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Speedmax 400i
Speedmax® is an inline speed of sound measuring instrument for online determining of the concentration of liquid media. Speedmax® is especially suited for measuring dynamic processes in closed pipes of an automation environment. With the measured speed of sound and the temperature of the medium the current concentration of medium can be determined on basis of well known speed of sound curves.
Speedmax® is especially suited for quality assurance, to control continuous processes and min./max.limits in pipes. All parts having contact to the medium are PFA (New Teflon). Therefore Speedmax® can be used for very alkaline, very toxic and/or very aggressive media like concentrated acids and leaches. The measuring values of speed of sound and temperature are measured from outside through the measuring pipe. Process connections are free of seals using flare technology or NPT-screwing.
The design of the pipe minimizes dead volumes over the whole geometry. For output of measuring values a current output, limit outputs and a RS 485 interface are available.
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Walchem’s WCU410 Copper Controller and WNI Nickel Controller are optoelectronic on-line analyzers that measure the actual concentration of copper or nickel in solution. They are used in a variety of applications including electroless plating baths and microeth baths (including oxide-replacement types).
The WCU410 may be switched from electroless copper to microetch via the menu, eliminating the need for a second controller. It reduces the need for manual titration, improves yield, and in microetch applications improves productivity by reducing the frequency of bath change-outs.
The WNI410 is available as nickel-only, or with a pH control option which may be added in the field. Two separate pump outputs for nickel and reducer and another for pH are used, each of which is capable of totalizing either pump on-time, volume pumped, or metal turnovers.
Integrated datalogging is available to validate system performance. A USB memory stick is all that’s needed to extract data and event logs that include copper or nickel measurements, and relay status. Download logs from the USB stick to a PC at your convenience. It couldn’t be easier!
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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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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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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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Hach LDO™
Since 2002, Hach has established itself as the premier provider of Luminescent Dissolved Oxygen technology, and only Hydrolab Series 5 sondes feature Hach LDO technology – designed, manufactured, and supported by Hach in Loveland, Colorado.
Features:
- No membranes
- Calibrations that last
- Superior accuracy
- Compact housing allow complete integration into any sonde – DS5X, DS5, or even MS5
Benefits:
- Calibrations that last without drift means that deployments will last longer, reducing frequency of trips to the field for maintenance, saving you time and money
- No membranes so concerns about air bubbles, 24-hour membrane relaxation, and the art of maintenance are a thing of the past
- Does not consume oxygen so passive fouling will not affect DO readings
- Best accuracy because solid, defendable data is the ultimate goal
- Designed, manufactured, and supported by Hach Environmental, the experts in LDO technology, so all your questions can be addressed locally
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