RAIN RECORDER AUTOMATIC 3153
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.
RAINFALL SENSOR 3156
Sensor: Tipping-bucket of brass
Orifice: 200mm
Output: 0.5mm amount of rainfall per tip
Switch: Read switch (contract time 0.1 second)
Contract rating: 1 ADC max., 250Volt DC max.
Accuracy: Within 2% (100mm/hr.)
Size: Height 450mm X Dia 200mm
Weight: 3.5 kg
SEISMOGRAPH MODEL 3165
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 3170
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 3171
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). 3174
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 3175
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 3184
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.
WATER LEVEL RECORDER, AUTOMATIC, FLOAT TYPE 3197
Normally installed in conventional stilling wells on river/stream bridges to
record water level of the river/stream on a continuous strip chart driven
by a spring wound clock mechanism.
Also available:
METEOROLOGICAL WEATHER STATION
With up-to 5 parameters Digital or Analogue Data Loger.
WATER CURRENT METERS
and a wide range of HYDROLOGICAL EQUIPMENTS.
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