GOKO MANUFACTURERS(INDIA)

AN ISO 9001:2008 COMPANY

Spectrometers-Polarimeters

 

‘GOKO’ PRECISION SPECTROMETERS

Goko precision spectrometers has higher accuracy and trouble free workmanship, all mechanical and optical parts precisely manufactured and assembled.

The 360deg fine graduated scale has every 10th line numbered and is fixed on rotatable table, the collimator tube with slit fixed on base. The telescope fixed on table and movements is completely independent and has lock screw and slow movement knobs, so that movement can be read to 30sec. of arc with the help of double verniers which mounted at 180deg to each other.

Both collimator and telescope have rack & pinion focusing system and fitted with achromatic color corrected objectives.

Collimator : Fitted with fine quality adjustable slit
Telescope : Fitted with Ramsden eye piece 10x with cross hair
Prism table : Rotatable and adjustable in height and have greeting holder & prism clamp
Standard Accessories : Prism Holder, Grating Holder, Reading magnifier, Dust cover, Instruction manual. Plywood box packing.

Model  
SP- 6 with 6” scale and 1 minute vernier and pre-aligned telescope, collimator
SP - 6 Delux with up – down motion for alignment of telescope and collimator
SP- 7 with 7” scale and 30 Seconds vernier and pre-aligned telescope, collimator
SP- 7 Delux with up – down motion for alignment of telescope and collimator
SP- 7A with 7” scale and 20 Seconds vernier and pre-aligned telescope, collimator
SP- 7A Delux with up – down motion for alignment of telescope and collimator
SP- 9 with 9” scale and 30 Seconds vernier and pre-aligned telescope, collimator
SP- 9 Delux with up – down motion for alignment of telescope and collimator
SP- 9A with 7” scale and 20 Seconds vernier and pre-aligned telescope, collimator
SP- 9A Delux           with up – down motion for alignment of telescope and collimator

Spectrometer Accessories

1. 35W Sodium Light Source
2. 120w/80w Mercury Light Source
3. Spectral Tubes , Helium, Neon, Hydrogen, Argon with power supply
4. Diffraction Grating 15,000 LPI
5. Double Refraction Prism 15x15mm, 20x20mm, 25x25mm
6. Quartz Prism 15x15mm, 20x20mm, 25x25mm
7. Crown Glass Prism 32x32mm / 38x38mm
8. DF Glass Prism 32x32mm / 38x38mm
9. EDF Glass Prism 32x32mm / 38x38mm
10. DEDF Glass Prism 32x 32x32mm / 38x38mm
11. Hallow Prism 32x32mm / 38x38mm

‘GOKO’ LABORATORY POLARIMETER
Model : POL - 220

Designed for quick and accurate determination of optical rotation of Sugar, Invert sugar, Salts, Medicines, Syrups etc. in higher accuracy. Instrument suitable for testing and quality control of products during manufacturing process, and for higher education institutions. A highly sensitive instrument consists of half shade device workable on sodium light source.

Body Aluminium metal heavy body rigid in construction
Workable tube length 200mm
Measuring scale 0 to 360 circular scale divided in single degrees, every 10th line numberd and every 5th line extended with 0.05 vernier reading
Sugar scale -0 to 30 and +0 to 130º divided in single degrees, every 10th line numberd and every 5th line extended
Scale housing Consists of upper eyepiece for scale focusing and reading and lower eyepiece for half shade device focusing
Light source 35w Sodium lamp with suitable transformer, Input 220-230v AC, 50Hz.
Sample tubes 100mm, 200mm, (One each) made from Borosil thick wall glass with Brass holders
Standard Accessories sodium light lamp 35w and transformer , 2 sample tubes, dustcover, instruction / working manual.
Packing Plywood box. Weight 15kg approx.

‘GOKO’ RESEARCH POLARIMETER
Model : POL - 400

Body Aluminium metal heavy body rigid in construction
Workable tube length 400mm
Measuring scale 0 to 360 circular scale divided in single degrees, every 10th line numberd and every 5th line extended with 0.05 vernier reading
Sugar scale -0 to 30 and +0 to 130º divided in single degrees, every 10th line numberd and every 5th line extended
Scale housing Consists of upper eyepiece for scale focusing and reading and lower eyepiece for half shade device focusing
Light source 35w Sodium lamp with suitable transformer, Input 220-230v AC, 50Hz.
Sample tubes 100mm, 200mm, 400mm (One each) made from Borosil thick wall glass with Brass holders
Standard Accessories sodium light lamp 35w and transformer , 3 sample tubes, dustcover, instruction / working manual.
Packing Plywood box. Weight 15kg approx.

‘GOKO” BIQUARTZ POLARIMTER
Model : POL - 200

Biquartz system polarimeter suitable for measure the optical rotation per cm. OR per mm thickness of solution as cane sugar to find out relation between concentration and rotation in polarized light. The instrument quite suitable to Pharmacy Colleges, Science college for education and training of students. The Biquartz device work on sodium light as well as on day light source (Ordinary bulb light).

Body with maximum brass parts and rigid in construction
Workable tube length 200mm
Measuring scale 0 to 360 circular scale divided in single degrees, every 10th line numberd and every 5th line extended
Vernier least count 1/10 = 6 minute with slow motion mechanism and lock handle
Analyser and Polariser Made of Imported polaroid
Shade Device Made from natural quartz crystal
Stand C.I. caste stand adjustable in height
Sample tube 200mm made from Borosil thick wall glass with brass holders
Standard Accessories sample tube, dustcover, instruction / working manual
Packing Thick cardboard box. Weight 6.0kg approx

‘GOKO’ ABBE REFRACTOMETER
Model : RL -1

Designed for quick and accurate measuring system by using few drops of sample, suitable for industries which is manufacturing Soft Drinks, Sugar, Paraffins, Waxes, Oils,Glue, Gums, Animal & Plant Fats, Glycerin, Alcohol etc.

Stand / Body One-piece Alunimium die caste body
Measuring scales Refractive index nD 1.300 to nD 1.700 Brix scale 0 to 95% ( Single degree graduation )
Temperature reading On mercury filled thermometer 0 – 70 deg.C.
Standard Accessories Mercury thermometer, Standard glass plate, Contact solution, Instruction / working manual in English.
Packing Plywood box. weight 7.5kg approx

‘GOKO’ ABBE REFRACTOMETER
Model : RL -1A

Stand / Body One-piece Alunimium die caste body
Measuring scales Refractive index nD 1.300 to nD 1.700 Brix scale 0 to 95% ( Single degree graduation )
Temperature reading On mercury filled thermometer 0 – 70 deg.C.
Light Source 35W sodium Lamp with transformerand Lamp housing
Standard Accessories Mercury thermometer, Standard glass plate, Contact solution, Instruction / working manual in English.
Optional Water Bath with water circulating pump
Packing Plywood box

HAND REFRACTOMETERS

Model – A Range 0-32%
Model – B Range 28 – 62%
Model – C Range 58 – 92%

‘GOKO’ NEWTON RING MICROSCOPE
Model : NRM

Stand / Body Duly machined heavy rigid C.I. cast body
Movement Travelling microscope with XYZ axes movement
Horizontal Scale ½ mm graduated with every centimeter numbered
Least Count Micrometer head least count 0.001cm
Fine Focusing Microscope fine focusing by rack and pinion system
Objective Achromatic high resolution FL 75mm
Eyepiece 10x with cross hair
Newton Ring Assembly Consisting of optically plane glass plate and 100cm plano-convex lens mounted in frame with pressure screws system. An adjustable plane glass inclined at 45° so that light fall properly on Newton ring apparatus
Packing Plywood box with lock and key
Optional Sodium Light Source

‘GOKO’ TRAVELLING MICROSCOPE
Model : TM – 220 Horizontal and Vertical Motion

C.I. cast heavy base / platform, Vee-Top surface is fine machined on CNC machine and fitted with white Perspex sheet it has three leveling screws (one is fixed) and take a kinetically mount horizontal carriage, which supports vertical column. The carriage has vernier and a magnifier for reading.

The vertical column has take kinetically mounted carriage which is mounted the microscope. It can be fitted to either side of the vertical column to suit the user’s preference and can be set to the horizontal or vertical position.

Both carriages have locking screws, releasing which enables free manual movement of the carriages. Fine adjustment is by means of the fine screw thread with large dia Knob at the end of each side

Horizontal Scale 1/2mmx220mm graduated SS scale with every centimeter numbered
Vertical Scale 1/2mmx150mm graduated SS scale with every centimeter numbered
Microscope Main tube has a side arm which attached to the vertical carriage
Objective Achromatic of high resolution FL.75mm.
Eyepiece 10x with cross hair
Vernier Least Count 0.001cm
Accessories One reading magnifier, Dust cover, Instruction manual
Packing plywood box weight 12.0kg approx

‘GOKO’ DELUX TRAVELLING MICROSCOPE
Model : TM – 260 Horizontal, Vertical and Traverse (3 Motion)

Horizontal Scale 1/2mmx220mm graduated SS scale with every centimeter numbered
Vertical Scale 1/2mmx170mm graduated SS scale with every centimeter numbered
Traverse Scale 1/2mm x 50mm graduated scale, 25mm movement
Vernier Least Count 0.001cm