Suitable Industries for Application of Visible Spectrophotometer :

•     Water & Wastewater (Municipal and Industrial)
•     Boilers & Cooling Towers
•     Chemical Industries
•     Educational Institutes
•     Agriculture,
•     Aquaculture & Aquariums
•     R & D and more

Specifications :
Wavelength Range340 to 900 nm Wavelength Resolution1 nm Wavelength Accuracy±1.5 nm Measurement Modes Transmittance (% T), absorbance (abs), concentration with choice of units (ppm, mg/L, ppt, °f, °e, ppb, meq/L, μg/L, PCU, P fund, pH, dKH, °dH, meq/kg or no measurement unit)Wavelength Selection automatic, based on the selected method (editable for user methods only)Light Source tungsten halogen lamp Optical System split beam sample and reference light detectors Wavelength Calibration Internal, automatic at power-on, visual feedback Stray Light<0.1 % T at 340 nm with NaNO2Spectral bandwidth5 nm (full width at half maximum)Sample Cell16 mm round, 22 mm round, 13 mm vial, 10 mm square, 50 mm rectangular (with automatic detection)Programs (Factory/User)Up to 150 factory (85 pre-loaded); up to 100 user developed Data Points Stored Up to 9999 measured values Export Capability.csv file format, .pdf file format Connectivity(1) USB - A (mass storage host); (1) USB - B (mass storage device)Battery Type / Life3000 measurements or 8 hours Power Supply15 VDC power adapter; 10.8 VDC Li-Ion rechargeable batteryEnvironment0 to 50 °C (32 to 122 °F); 0 to 95% RHDimensions155 x 205 x 322 mmWeight3 kg (6.6 lbs)Ordering InformationHI-801 is supplied with 22 mm sample cuvette and cap (4), 10 mm square, 13 mm round and 16 mm round cuvette adapters, cloth for wiping cuvettes, scissors, USB cable, lithium ion rechargeable battery, 115VAC to 15VDC power adapter, USB drive, instruction manual, and instrument quality certificate.

Details :

• Hanna Instruments offers a wide variety of pH electrodes that are designed for many different applications. The type of glass used for sensing pH, bulb shape, body material, type of junction, type of reference and electrolyte used are just some of the design considerations.
• The HI1131BP uses high temperature (HT) glass, spherical bulb, glass body, single ceramic frit, double junction and is refillable with 3.5M KCl.
• High Temperature Glass Formulation -The measurement of pH at very high temperatures is detrimental to the sensitive glass bulb and will shorten the life of it. A pH electrode with general purpose (GP) glass will have a resistance of 100 megaohms at 25oC while the resistance of HT glass is around 400 megaohms at 25oC. As the HI1131BP is used at elevated temperatures the resistance decreases to approach the that of GP glass. The HI1131BP is suitable to use with samples that measure from 0 to 100oC.
• Spherical Glass Tip -The spherical bulb is for general purpose use. Other tip shapes include conic for penetration and flat tip for surface measurements.
• Glass Body - The glass body is ideal for laboratory use. The glass is resistant to many harsh chemicals and is easily cleaned. The glass body also allows for a fast transfer of heat to the internal reference electrolyte. The mV generated by the reference cell is temperature dependent. The faster the electrode reaches equilibrium, the steadier the reference potential.
• Single Ceramic Double Junction Reference -The HI1131BP is a double junction design. pH electrodes are available as single junction or double junction. See below for a complete description of the differences. The junction also known as a salt bridge is necessary component of the electrical circuit. The movement of ions must flow through the junction for a steady reading. The outer reference has a single ceramic frit. The ceramic is a porous material that is easily fused with the glass body and has a similar expansion coefficient. A single ceramic junction has a flow rate of 15-20 μL/hour. Other junction types are available with higher flow rates and made with different materials.
• Refillable - The HI1131BP is a refillable probe. Since it is a double junction pH electrode the fill solution is the HI7082 3.5M KCl. This solution does not contain any silver as with single junction electrode. The absence of silver will prevent any silver precipitate from forming at the junction surface and clogging it. Clogging of the junction will result in drifty and erratic readings. 
• BNC Connector -The HI1131BP uses a BNC connector. This type of connector is universal in that it can be used on any pH meter that has the female BNC probe input. Other type of connectors include DIN, screw type, T-type, and 3.5mm to name a few. These types of connectors tend to be proprietary for a particular type of meter and are not interchangeable.

GroLine Cleaning Solution
Maintaining a clean pH electrode is vital for not only in getting an accurate pH measurement but also ones that are drift free. Any coating to the sensitive glass bulb or clogging of the junction will impede the electrical circuit resulting in erratic and misleading readings. GroLine cleaning solution ensures the maximum performance from the pH electrode to provide readings that you can depend on.

GroLine Storage Solution
All glass pH electrodes need to be stored properly to guarantee an accurate calibration and to protect the pH electrode from premature failure. A few drops of storage solution will maintain the hydrated layer on the glass bulb and prevent the reference junction and electrolyte from drying out. GroLine storage solutions are specifically formulated to accomplish the task and maximize the life of the pH electrode.

Right Size, Right Price
GroLine calibration cleaning and storage solution is available in convenient 230 ml bottle size.

Quick Cal Dual-Purpose Calibration Solution
With GroLine Quick Cal solution only one solution is needed to calibrate both pH and conductivity. This dual-purpose calibration solution is used with compatible meters with the Quick Cal mode or with pH and conductivity meters that calibrate to pH 6.86 and 5.00 mS/cm, respectively.

Supplied with Certificate of Analysis
All GroLine pH and Conductivity/TDS standards in a 230 ml bottle are supplied with a Certificate of Analysis (COA). The COA contains the information regarding the traceability of the solution to NIST traceability standard. Information includes Standard Reference Material (SRM) used for calibration, lot number, and date of production.

Right Size, Right Price
GroLine calibration solution is available in convenient 230 ml bottle size due to the frequency of use. Infrequent use would include users that calibrate and measure on a weekly or monthly basis. With infrequent use it is important that the solution be used within six months of opening the bottle. After that it should be changed out since the measurements will only be as good as the calibration solution, which degrades over time. For added convenience, the Quick-Cal Solution is also available in 20 ml sachets.

Details

• Ideally, when performing electrochemistry measurements, the sample being tested should be stirred. The use of a magnetic stirrer allows for proper mixing and the sample to be homogenous in consistency and temperature. The stirring of the sample also helps speed up the response time for a sensor to achieve a stable reading.
• Compact & Cost-Effective - The HI190M-2 mini-magnetic stirrer is compact and lightweight, allowing for easy handling in the laboratory environment. Limited area on laboratory benchtops is no longer a concern with this durable, space-saving stirrer. Power-indicating LED lights also assure users at a distance that the stirrer is in operation. The durable plastic covering will resist harmful effects of accidentally spilled chemicals. The HI190M-2 magnetic mini-stirrer is cost-effective for the customer that does not need the added expense of a heating element. The advanced design incorporates electronic controls that allow the user to easily regulate the speed with great precision.
• Speedsafe™ - Often in the lab, a sample is removed from a stirrer before the speed is adequately reduced. Normally this would cause the internal motor to accelerate until it is damaged. To control the speed from changes in viscosity or removing of the load the HI190M-2 magnetic mini-stirrer incorporates the Speedsafe™ mechanism. With Speedsafe™, a speed sensing device (opto-sensor) is coupled with an FVC (frequency voltage converter) to monitor the stirring speed. As the speed reaches a preset maximum level, the speed limiter shuts down the VCO (voltage-controlled oscillator) to slow down the motor speed. This ensures that when the load is suddenly removed from the stirrer, the motor will not accelerate to such a high speed that will be hazardous to both the user and the stirrer; a feature not commonly found in conventional stirrers.
• Fuse Protection - For safety, in the event of a short circuit, the HI190M-2 is equipped with a replaceable fuse. The circuitry of the HI190M-2 is grounded to the case for additional protection