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The TP-4501 is a unique detector head designed for use with the X11 or X12 hand-held optometer to measure on-site lighting conditions in greenhouses, plant growth studies, soil and seed science.

The compact detector houses four different detectors:

  • Yellow: PAR measures the photonsynthetically effective radiation in the 400 to 700 nm wavelength range actinic for plant growth
  • Blue: Measures the phototropism effective radiation within the 320 to 500 nm wavelength range actinic for directional plant growth
  • Red: Measures the photomorphogensis effective radiation within the 560 to 900 nm wavelength range actinic for plant growth formation
  • Green: Photometric V(λ) measures the illuminance which specifies the ambient lighting condition

Traceable Calibration

Calibration of the detector responsivity is performed by the Gigahertz-Optik GmbH calibration laboratory for optical radiation measurements quantities. As with all light detectors supplied by Gigahertz-Optik calibration of absolute detector responsivity as well as detector individual measured relative spectral responsivity data is included.

TP-4501 Typical Spectral Responsivity
Specification
TP-4501 (Sensor 1)
Spectral Function

Photometric

Typical Responsivity

40 pA/lx

Imax

1 mA

TP-4501 (Sensor 2)
Spectral Function

PAR eff400-700nm

Typical Responsivity

0.1pA/µmol·m-2·s-1

Imax

1 mA

TP-4501 (Sensor 3)
Spectral Function

Phototropism eff320-500nm

Typical Responsivity

2pA/µmol·m-2·s-1

Imax

1 mA

Input optics

Cosine Diffuser 11 mm Ø

Miscellaneous
temperature range

(5 - 40) °C

Cable Length

2 m

Plug Types

-4

Type Description File-Type Download
Datasheet TP-4501 PDF
Produktname Product Image Description Show product
X1 Four-channel USB optometer designed for mobile use.

Features: Compact device for use with all photometric, radiometric, colorimetric, plant-physiologic and photo-biologic measurement heads from Gigahertz-Optik. USB interface. Battery operation or power supply USB.
Article-Nr Modell Description Request / Compare
Product
15296072 TP-4501 (-4 Connector)

Detector, Calibration Certificate

Re-calibration
15300580 K-Si-SR

Calibration of relative spectral responsivity from 250 nm to 1100 nm

15300465 K-TP4501-I

Recalibration with Calibration Certificate


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