With the PMA2143 thermopile radiant fluxes can be measured. It is sensitive to radiation from 0.2 to 50 µm, and has a field of view of 10°. It brings the unsurpassed features and high accuracy of this class of instruments into the price range of photovoltaic detectors.

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U.S.Pat.5,946,641

U.S.Pat.5,790,432

FEATURES

• Flat spectral response from 0.2-50 µm
• Portable
• Hermetic enclosure
• Min/Max tracking
• Dose integration
  

APPLICATIONS

• Flat spectral response measurements
• Control of ovens
• Demonstration
• Reference measurements
• IR applications
  

> Detectors need to be used with a Radiometer

> Analog version of this detector can be used with any 0 to 5 VDC or 4 to 20mA recording device

The sensor is a high quality blackened thermopile assuring flat spectral response throughout the entire spectrum. The thermopile is a thermal detector and responds to the total power absorbed. Irradiance measurements are easily affected by convection and radiant losses to the environment. Therefore, the detector can be
shielded by a glass window. By using the window, the spectral range is limited to 0.3 to 3 µm.

Specifications

• Spectral response 0.2-50µm without window, 0.3-3µm with window
• Field of view 10°
• Sensitivity 20-40 µV/W/m² on window, 0.1 µV/µW on absorber, 1.10 times higher without window
• Max Irradiance 2000 W/m²
• Absorber/detector surface area 12mm
• Response time 30 seconds
• Operating environment -40 to 175 °F (-40 to +80 °C), outdoors
• Non linearity (50mv)3%
• Diameter 1.48", 37.6mm
• Length (without connectors) 4.0", 101.6mm
• Height (with 160mm rod) 7.75", 196.9mm
• Cable 15ft, 5m
• Weight 16.5 oz. (500 grams)

Analog versions of this detector are available See PMA1143

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