SMIS Instrumentation

The pyranometer is based on a thermopile sensor. The thermopile
sensitive surface is coated with a black matt paint, which allows the pyranometer not
to be selective at different wave lengths. The pyranometer spectral range is
determined by the transmittance of the two glass domes type K5.
Radiant energy is absorbed by the thermopile black surface, creating a difference of
temperature between the center of the thermopile (hot junction) and the pyranometer
body (cold junction). Thanks to the Seebeck effect, the difference of temperature
between hot and cold junction is converted into a Difference of Potential.
In order to grant the thermopile a proper thermal insulation from the wind and to
reduce the sensitivity to thermal irradiance, the pyranometer is equipped with two
concentric domes having a diameter of 50mm and 30mm, respectively. The domes
protect the thermopile from the dust, which, laying down on the black surface, might
change spectral sensitivity.
The shadow ring prevents the direct solar radiation to reach the sensor the whole day
long, so that only the diffuse solar radiation will be measured. Because the elevation
of the sun changes day by day, it is necessary to change the height of the shadow ring
every two days.

Second Class Pyranometer

Hand Held Ultrasonic flow meter

Environmental Measuring Instruments - Data Loggers and Digital Measuring Equipments Manufacturer... Manufacturer and Supplier of Environmental Measuring Instruments, Data Loggers and Digital Measuring Equipments offered by SMIS Instrumentation, Bengaluru, Karnataka, India.

Ultrasonic flowmeter ufm 2001 This low cost clamp on ultrasonic flowmeter is ideal for long-term deployment for flow measurement and closed-pipe applications, such as liquid process contr...

Wind speed sensor ws120 4 20m a Wind Speed Sensor Model No: WS120 Specifications Cable Color Code Brown : + 24 VDC Black : GND Yellow : 4 -20mA

Environmental Measuring Instruments - Electronic Transmitters and Data Loggers Supplier and... Supplier and Trader of Environmental Measuring Instruments, Electronic Transmitters and Data Loggers offered by SMIS Instrumentation, Bengaluru, Karnataka, India.

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wireless weatherstation

Specification:
Display: 3 digits, big LCD, max display 1999.
4 ranges: 200 Lux, 2000 Lux, 20,000 Lux, 200,000 Lux.
For 20,000 Lux range, the reading need to times 10, then will be correct.
For 200,000 Lux range, the reading need to times 100, then will be correct
Accuracy: ≤10,000 Lux:± 4% rdg 0.5%f.s
≥10,000 Lux: ±5% rdg 10.
(Accuracy tested by a standard parallel light tungsten lamp of
2856K temperature)
Repeatability: ±2%.
Temperature characteristic: ±0.1%/ ˚C
Sampling rate: 2 times/s.
Sensor: photo diode and filter.
Operation Environment: 0 to 40˚C ( 32˚F to 104˚F) 0 to 70% RH
Storage Environment: -10˚C to 50˚C (14˚F to 140˚F) 0 to 80% RH
Overload Display: Top Digit shows’’1’’.
Battery: 9VDC
Battery Life: Continuous 200housr (alkaline Battery)
Size: 100x60x27mm (Sensor)
130x95x30mm (Meter)
Weight: 300g
Accessories: Manual, Battery, Black Pouch