PPFFR QUANTUM SENSOR - AQPL-UV912.

The AQUAMATIC Underwater PPFFR Quantum Sensor is used for measuring Photosynthetic Photon Flux Rate (PPFFR) in aquatic environments.

A specially designed photodiode and a filter are built in to the sensor for linear energy response between 400 and 700 nm having a slope of 1% per 7 nm which is the ideal PPFFR sensitivity for researching primary productivity.

Features include a rugged and waterproof construction for measurements in air, freshwater and saltwater, input from all directions, linear energy response with wavelength, equal response to photons between 400 and 700 nm, fast reaction time and small dimensions. Available with two types of underwater connector.

SPECIFICATIONS
Quantum Range : 0 - 10.000 mE/sec./m².
Linear output : 0.3 nA - 30 mA.
Accuracy : + 7% in air.
Sensitivity, water : 4.5 mA per 1.000 mE/sec./m².
Sensitivity, air : 7.3 mA per 1.000 mE/sec./m².
Depth : 500 psi or 340 dBar.
Linearity : + 1% over Quantum Range.
Dark Current : 0.3 nA at 25^o C.
Response time : 3 m sec. - 63 %
Temperature coefficient : 0.2% / ^o C. - linear.
Repeatability : + 0.1 %
Stability : Drift less than + 2% over 1 year.
Cosine Correction : Optimized by Pyrex Glass diffuser.
Angular Response : Less than + 5% error up to + 90^o from vertical.
Azimuth Response : Less than + 4% error over 360^o at 90^o from vertical.
Vibration & Shock : Limited by the Pyrex Glass diffuser.

PHYSICAL INFORMATION
Total length : 108.5 mm. ( 4.27 inches). + type of connector.
Globe diameter : ø 64.3 mm. ( 2.53 inches).
Housing diameter : ø 31.5 mm. ( 1.24 inches).
Weight : 150 grams ( 0.33 lbs).
Material Globe : Pyrex Glass.
Material Housing : Brass with Cu, Cr, Ni, and plastic.
Temperature : -40^o C to +80^o C storage and operation.
Connector - "MALE" : SUBCONN MINI BHM2M or 2 pin connector with 7/16*20UNF thread.
Cable - FEMALE connector : SUBCONN MINI ILM2F or eg. 2222UWB.
Mounting : Three times 3 mm. thread on diameter 26.3 mm.

AQUAMATIC, Ellebrinken 99, 8520 Lystrup, Denmark, Phone: +45 86 17-31-44,
E-mail: aquamatic@aquamatic.dk