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Physics > Metereology
 
ANEMOMETER CUP COUNTER TYPE   (1833)

A 3 Cup wind Anemometer coupled with a mechanical counter housed in a cast Al. box giving the total wind run. Cups made of non corrosive metal/plastic. As per meteorological Dept. Specifications.



ANEMOMETER –VANE TYPE (ELECTRICAL)   (1834)

100mm dia. vane is mounted in Aluminium Ring coupled with Eddy current generator motor, the output of which is directly proportional to the wind speed. The wind  velocity in mtr/sec can be read on a analogue meter in a remote placed console.


ANEMOMETER 3 CUP TYPE (ELECTRICAL)   (1835)

A 3 Cup type Anemometer mounted on a vertical axle, coupled with Eddy current generator motor, the output of which is directly proportional to the wind speed. The wind  velocity in mtr/sec can be read on a analogue meter in a remote placed console.


ELECTRICAL WIND VELOCITY/DIRECTIONAL INDICATOR   (1836)

Remote mounting type. A complete instrument with remote mounting facility to show the wind velocity and wind direction on a display unit which can be kept in a separate hut 30m remote cable. With or without mounting structure.


ANEMOMETER DIGITAL (HAND HELD)   (1837)

A low friction rotating vane anemometer and its rotation is sensed by an infrared light beam which adds no friction. The resulting signal is processed by microprocessor assures maximum possible accuracy and provides special functions and features using RTC chip & Memory having small package. A special 16X2 digit Alphanumeric intelligent display is used for extra resolution and provides excellent viewing contrast in bright sunlight with back light. Suitable for most generameasurements in heating, ventilating and air conditioning applications. Direct reading of air velocity-no separate timer required. Supplied in carrying case. Powered by 9V PP3 battery. Direct reading in meter/second.
Specifications:
Sensor:Low friction rotating vane.
Display update: 1 second.
Average Time: User selectable (up to 120 seconds)
Resolution: 0.01 m/s
Range: 0.2 to 40 m/s
Threshold: 0.2 m/s
Battery: V PP3 battery, 3V lithium coin cell (CR2032)



WEATHER STATION, SIMPLE FORM   (1838)

Compromising a self assembly weather screen with one wind vane and one Anemometer, a wet and dry bulb hydrometer, a maximum and minimum at all 4 sides, front openable hinged with chain, painted white. Dimensions 200x175x125mm HxWxD. The above list does not include the entire range of instruments available, please feel free to request other items throughout this field.


SUNSHINE RECORDER   (1839)

Campbell-stokes pattern, for the self recording of duration of Sunshine from Sunrise to sunset of the day. This is a tropical pattern suitable for use in the latitudes 5º South to 45º North. Bowl made of Tin Bronze surface finished black painted and hard Lacquer, with cut glass sphere mounted concentrically in a section of the spherical bowl, the diameter of which is such that when the instrument is exposed to sun rays they are sharply focused on a card held in the grooves of the bowl, the focused sunray’s burn a trace on the recording card which has a time scale printed on it. The length of the burn indicates the period of bright Sunshine during the day. Complete in a wooden box with recording cards for one year.


PYRANMOMETER, THERMO-ELECTRICAL   (1840)

The pyranmometer is used to measure total (beam plus diffuse) solar radiation.   The precision spectral pyranometer being used has a black thermopile sensor protected by two concentric hemispherical optically ground covers. The detector is independent of wavelength of radiation over the solar energy spectrum


RAIN GAUGE   (1841)

This is symon type ordinary rain gauge. The outer body is made entirely of light, right and robust Fiber glass reinforced polyester. The collector is fitted with non rusting gunmetal rim. Complete with rain collecting bottle and rain measuring cylinder. Cap: (a) 100cm sq. collecting area. (b) 200 cm sq. collecting area.


RAIN RECORDER AUTOMATIC   (1842)

This is Symon type ordinary rain gauge. The outer body is made entirely of light, rigid and robust Fiber glass reinforced polyester. The collector is fitted with non-rusting gunmetal rim. Complete with rain collecting bottle and rain measuring cylinder.
Cap : (a) 100 cm sq. collecting area. (b) 200 cm sq. collecting area.



SEISMOGRAPH MODEL   (1843)

Earthquake shock waves are recorded in the same manner as demonstrated by this model, by mounting the model to a table and vibrating it, earthquakes can be simulated and recorded. The recording pen is attached to a weight suspended from a support which moves with the vibrations while the recorder remains stationary because of its inertia.


BAROMETER, ANEROID   (1844)

With 100mm dial graduated 28 to 31 inch of mercury and 960 to 1060 millibars. With plated bezel, cover glass and index plastic approx. 16cm diameter.



BAROMETER, ANEROID DEMONSTRATION   (1845)

Instruments construction of this Barometer is like Cat No 3170 but enclosed in a transparent synthetic case for demonstration purpose. Air tight sealed all round, a pressure bulb is provided to force the movements for educative demonstration.


MERCURIAL BAROMETER (FORTIN TYPE)   (1846)

The Fortin Type Barometer consists of a long glass tube sealed at one end and filled with mercury. The tube is inverted so that the open end is submerged in a cistern of mercury. The height of the mercury in a tube is a mercury of the atmospheric pressure acting on the mercury in the cistern. Reading are taken by first adjusting the mercury level in the cistern to a zero point and then moving a vernier to the top of the mercury column.



MERCURY BAROMETER KEW PATTERN   (1847)

The Kew Type Barometer consists of a long glass tube sealed at one end and filled with mercury. The tube is inverted so that the open end is submerged in a cistern of mercury. The height of the mercury in a tube is a mercury of the atmospheric pressure acting on the mercury in the cistern. Reading are taken by first adjusting the mercury level in the cistern to a zero point and then moving a vernier to the top of the mercury column.


EVAPORATION PAN   (1848)

Standard Weather Service Type for evaporation measurements normally insulted on a wooden platform on the ground grassy location. Complete with stilling well, measuring cylinder & thermometer. Optional: Hook gauge.


SOLAR FAN   (1849)

This working model is in a two parts box. The part with solar cells is placed in sunlight and fan portion is kept in shade or class room. The solar energy gets converted into electrical energy, which in turn energies the fan. Thus conversion of solar energy into electrical energy and then mechanical energy.


SOLAR BULB   (1850)

Working model in two parts box, one part with solar cell and other is with bulb(L.E.D.) The part with solar cell is placed in sunlight and the bulb with glow. Thus conversion of solar energy into electrical energy.



STANDARD THERMOMETER   (1851)

The Standard  Mercury Thermometer is 10.5 inches long  and is mounted on a stainless steel back.  Stainless steel support, to mount the thermometer, at  the proper distance from a wall.
Ranges:
a. –40°C to +55°C.
b. – 40°F to 130°F
Accuracy: ±0.15°F above 32ºF.


GLOBE THERMOMETER   (1852)

The Globe Thermometer is used in studies to determine heat stress. A 6-inch- diameter hollow copper sphere is painted with a matte black paint to absorb the radiant heat from surrounding objects. After a time lag, the temperature at the center of the sphere is a measure of the radiant heat. A thermometer inserted through a rubber stopper indicates This temperature from 0ºC to 100ºC (0.5º graduations). supplied with a heavy stand and a mounting support.


MAX-MIN THERMOMETER COMBINED   (1853)

A U-Shaped thermometer tube of the six pattern, magnifying lens tube have special metal indicies for registering highest and lowest readings. These are reset by a small magnet.
Range: -20ºF to 120ºF
-20ºC to 55ºC


MAXIMUM THERMOMETERS (METEOROLOGICAL PATTERN)   (1854)

A mercury in glass instrument with a constriction in the bore between bulb and the beginning of the scale. Thermometer is mounted on a teak wood mount with plastic scale. The bulb side is protected with bras frame. A two key hole mounting strip of brass is provided . Range: -35ºC to 55ºC


MINIMUM THERMOMETER (METEOROLOGICAL PATTERN)   (1855)

Alcohol in glass with special metal index mounting details as above. Range:  40º to 50ºC


WET AND DRY BULB THERMOMETER COMBINED (HYGROMETER)   (1856)

Two same scaled mercury filled thermometers, fitted on the base. One of these bulbs covered with cotton sleeves dipped in water contained in plastic water bottle with reading of two thermometers and temperature table the humidity is found. Range: -10 to 55ºC



WET BULB THERMOMETER (METEOROLOGICAL PATTERN)   (1857)

Mercury in Glass, without Constriction, fitted on Teak wood mount with plastic scale. Range: 35ºC  to 55ºC



DRY BULB THERMOMETER (METEOROLOGICAL PATTERN)   (1858)

Mercury in glass, without construction, fitted on teak wood mount with plastic scale. Range: -35ºC to 55ºC


WHIRLING PSYCHROMETER   (1859)

For measuring Humidity. Comprises a set of wet & dry bulb thermometers with lens front stem, engraved mounted on boxwood frame with water reservoir, handle for whirling. Complete with humidity table, in sling leather case.


HUMIDITY DIAL (HAIR HYGROMETER)   (1860)

Humidity Dial is a precision hygrometer, featuring a sensitive and reliable Durotherm humidity element. The easy to dial ranges from 0 to 100% RH with graduation of 2% RH with graduation of 2%RH. It is enclosed in a brass case with a pre-drilled mounting flange. The case has many openings to assure sufficient air flow to the measuring element.


THERMOGRAPH   (1861)

The thermograph is the instrument of choice for recording ambient temperature indoors or out. An aged bimetal strip expands and contracts with changing temperature. This movement is transferred  to the pen through a counter balanced mechanical linkage. A span of 60º or 110ºF can be measured, and the span can be easily adjusted for different reasons. The instrument is constructed of corrosion-resistant materials. The bases cast aluminum , and all internal parts are stainless steel or chrome plated brass air move freely around the sensor through large slots in the case.


THERMO-HYGROGRAPH   (1862)

Thermo-hygrograph is a precious, self –contained instrument that measures and records ambient temperature and relative humidity simultaneously on a double scale chart. This instrument is ideal for measurements in laboratories, computer room or agricultural areas. The Thermo-hygrograph employs an aged bimetal strip which distorts with changes in the temperature. This distortion is magnified through a lever system which moves a pen arm over the upper half of the 7 –inch high chart. The response is linear .Temperature is recorded over a 60°C or 110°C span. A specially treated bundle of human hair is used to measure relative humidity over the full range of 0 to 100%.



EARTH/SOIL THERMOMETERS   (1863)

For measuring earths temperature at depths from surface down to 1m. It has the advantage that Readings can be taken without disturbing the thermometer. Thermometer is mercury in glass with its stem bent at 30º just below the scale. The lower portion is placed vertically in the earth with bulb at the required depth. Range: -10ºC  to 55ºC  Depths available 5cm, 10cm, 20cm, 30cm, 50cm and 1m



STAND FOR THE ABOVE 1864   (1864)

A metal stand made of thick soil thermometer gauge MS strip fixed with two clamps to hold the thermometer in position. Lower part can be inserted into the soil.


THERMOMETER SCREEN (STEVENSON'S)   (1865)

For use with four meteorological thermometers for their protection against Radiation and precipitation. The screen is a rectangular box made from seasoned wood. With all its 4 sides double louvered and provided with hinged front door. The roof is double and the bottom consists of overlapping boards separated by an air space. All 4 thermometers can be fixed inside the screen on the frame work provided inside it. Painted white with chlorinated rubber base paint. Conforms to "Globe" Specification.



WIND VANE   (1866)

A heavy duty wind vane compromising a balanced vane rotating through a double ball bearing axle made of s.s. All the directional arms can be detached, fitted on a heavy cast Al. Base with 1 1/2" Galvanised pipe. Epoxy painted to sustain weather hazards.


WIND VANE   (1867)

A small version of the above wind vane with all parts of s.s. Vane made of Al. and direction letters are also of cast Al. painted stove enameled.


WIND VANE   (1868)

Simple form for use in schools and labs, Height around 18", two ball bearings type for minimum resistance.




 
 
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