Equipment

300 W programmable DC electronic load – Keysight Technologies

The Keysight N3304A is a 300 W (0-60A, 0-60V) electronic load module for use in either the N3300A or N3301A electronic load mainframe in system applications. The N3304A load module is fast and accurate, for programming in constant current, constant voltage, or constant resistance modes, or for making voltage, current or power measurements. The N3304A can also digitize waveforms.
Testing multiple output dc power supplies and dc-dc converters can be very time consuming if each output must be tested sequentially. If measurements are being made through a MUX using one DMM, this is what will happen. Using the built-in measurement capabilities of the N3300A electronic loads, all outputs can be measured simultaneously. Alternatively, multiple single output power sources can be tested simultaneously.
A single GPIB address is all you need for complete control and read-back of the N3304A load module within a single N3300A or N3301A mainframe. The N3304A electronic load provides fast operation and the accurate programming and read-back needed for high-volume DC power supply test systems.

Location: MSB 147
Faculty-in-charge: Prof. R. Raghunathan
For further details: S. R. Suseendiran

3D Printer- Miicraft plus

This SLA-based DLP pico 3D printer, offers the resolution as high as 30 microns by Z-axis and 56 microns by XY-plane to meet your delicate designs’ requirement. This is used to make mill fluidic devises or moulds for milli/micro fluidic devises. This equipment uses an acrylic material to fabricate the devise which cures in UV light.

Location: MSB 147
Faculty-in-charge: Prof. R. Raghunathan
For further details:Arun Sankar E M

850e fuel cell test station – Scribner Associates Inc.

The 850e is ideal for single-cell and short-stack fuel cell research and university programs, and the powerful FuelCell^® software package is included for controlling station operation. The model 850e Multi-Range Fuel Cell Test System is a complete test station for operation and measurement of PEM/DMFC fuel cells. The 850e combines a computer-controlled instrument (multiple current-range programmable electronic load, fuel and temperature controls, and data acquisition functions) with fuel handling hardware in an integrated bench-top unit. The 850e may be used with a single-cell or small stack, a host computer, and reactant and purge gas supplies.

Location: MSB 147
Faculty-in-charge: Prof. R. Raghunathan
For further details: S. R. Suseendiran

Brabender® Plasticorder® – Mixer

The Brabender®Plasticorder®is a torque rheometer for all kinds of process-technical investigations or processing tasks in laboratories and simulation for polymers. At PECS, we have a Brabender®Plasticorder®LabStation (drive) connected with a Measuring Mixer W50. This combination serves purpose for the optimizing processing properties of thermoplastics, thermosets, elastomers, fillers, pigments and more plastic and plastifying materials.

Specifications:

Brabender ®Plasticorder ®Labstation

Power	16 kW
Measuring Range	400 Nm
Torque Deviation	0.15 %
Speed Range	0.2 – 350 rpm
Temperature zones	8 zones

Measuring Mixer W50

Volume of the mixer	55 cm³
Maximum torque	200 Nm
Maximum Temperature Range	200 – 500 ⁰C
Application	Thermoplastics

The user-optimized WINMIX software is used for the evaluation of the results according to the latest standards. For more details: www.brabender.com

Centrifuge 5702 – Eppendorf

The 5702 family of low speed, general purpose centrifuges was especially designed to meet the requirement of low- to mid-throughput clinical research and cell culture labs. They are compact in design so that one can fit comfortably on every lab bench, quiet in operation to benefit your work environment, and provide 6 different rotor options to accommodate any type of tube.

Location: MSB 147
Faculty-in-charge: Prof. R. Raghunathan
For further details: S. R. Suseendiran

Compression Molding

Model: Kelachandra Hot Press
Molding is the forming process. Compression Molding is a method of molding in which the molding material, generally preheated, is first placed in an open, heated mold cavity. The mold is closed with a top force or plug member, pressure is applied to force the material into contact with all mold areas, while heat and pressure are maintained until the molding material has cured.
It is followed by two steps: Preheating and then Pressurizing.
It is generally used for thermosetting plastic.
Faculty in-charge: Susy Varughese
Student in-charge: Indu Chanchal Polpaya

Densitometer

Density meter is instrument used measure density of suspensions, liquids e.g. colloidal suspension, crude oil etc. We have installed Anton Paar DMA 4500M densitometer. It can measure density of sample at different temperature. Instrument works on the principle of tuning fork.

Important Specifications:

Measuring Range

Density: 0 g/cm³ to 3 g/cm³

Temperature: 0 °C to 95 °C (32 °F to 203°F)

Pressure: 0 to 10 bar (0 to 145 psi)

Accuracy

Density: 0.00005 g/cm³

Temperature: 0.03 °C/0.05 °F

Minimum Sample amount

approx. 1 mL

Differential Scanning Calorimetry

Differential Scanning Calorimetry (DSC) measures the temperatures and heat flows associated with transitions in materials as a function of time and temperature in a controlled atmosphere.These measurements provide quantitative and qualitative information about physical and chemical changes that involve endothermic or exothermic processes, or changes in heat capacity.
What Can we measure using a DSC ?

Glass transitions
Melting and boiling points
Crystallization time and temperature
Percent Crystallinity
Heats of fusion and reactions
Specific heat
Oxidative/thermal stability
Rate and degree of cure
Reaction kinetics
Purity

Technical specifications
The DSC in our lab is from TA instruments Q2000 series.It includes advanced Tzero technolgy, advanced MDSC, direct Cp measurement and platinum software. The hardware includes full VGA touch screen, user replaceble Tzero cell and full range cooling accessories.Following gives the details of the instrument perfomance.

Temperature range	Ambient to 725 ºC
with cooling accessories	-180 ºC to 725 ºC
Temperature precision	+/- 0.01 ºC
Temperature accuracy	+/- 0.1 ºC
Calorimtric reproducibility (indium metal)	+/- 0.05%
Calorimtric precision (indium metal)	+/- 0.05%
Dynamic mesurement range	>+/-500mW
Baseline Curvature (Tzero; -50 to 300 ºC)	10µW
Baseline reproducibility with Tzero	+/-10µW
Sensitivity	0.2µW
Indium height / width (mW/ºC	60ºC

Faculty In-charge: Susy Varughese
Student In-charge: Jacob John

Dynamic Light Scattering – DLS

Horiba Partica LA 950

Technical Specifications

Measurable size range : 10nm – 3,000 (3mm)

Sample type : Wet and Dry (POWDERS, SUSPENSIONS,AND EMULSIONS)

Accuracy: +/- 0.6% of standard tolerance on polystyrene latex standards

Light Source: 5 mW 650 nanometer red laser diode and 3 mW 405 nanometer blue light emitting diode (LED)

Detectors: 87 detector high-resolution silicon photodiode array

75 detectors for forward/low-angle light scattering

12 detectors for high-angle and backscatter light scattering

Horiba Nanopartica SZ-100

Technical Specifications

Laser Source : DPSS 532 nm, 10 mW Class I

Temp control range: 1-90℃ for particle size, 1-70℃ for zeta potential

Operating temp and humidity: 15-35℃, Relative humidity = 85% or less, no condensation

Particle Size: DLS technique

Measurable Size Range Particle Diameter: 0.3 nm to 8 microns

Concentration Lower Limit: 0.1 mg/ml and lesser

Upper Limit: 40 wt% depending on sample

Sampling volume 12 microL to 4mL depending on sample

Zeta Potential: Laser doppler electrophoresis technique

Measurable range -200 mV to +200 mV

Sampling volume 100 microL for Disposable cell

Molecular Weight: Static Light scattering Debye plot technique

Measureable Range Mw: 1×10³– 2×10⁷ g/mol
Sampling volume atleast 5 different concentration samples

Expanded plasma cleaner-Harrick plasma PDC 002

Plasma cleaning is the process of removing all organic matter from the surface of an object through the use of an ionized gas called plasma. This is generally performed in a vacuum chamber utilizing oxygen or argon gas. We use this equipment to clean the surface of PDMS devises and bond PDMS/PDMS or PDMS/ Glass surfaces.