SQ-522-SS Modbus Digital Output Full-spectrum Quantum Sensor

$488.00

The SQ-522-SS sensor outputs a digital signal using Modbus RTU protocol over RS-232 or RS-485. The sensor incorporates a rugged, self-cleaning sensor housing design, anodized aluminum body with acrylic diffuser, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. Typical applications include PPFD measurement over plant canopies in outdoor environments, greenhouses, and growth chambers, and reflected or under-canopy (transmitted) PPFD measurements in the same environments. Quantum sensors are also used to measure PAR/PPFD in aquatic environments, including salt water aquariums where corals are grown.

 

FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS

• Product Manual

• Specification Sheet

• Technical Drawing

 

MORE INFORMATION ON APOGEE FULL-SPECTRUM QUANTUM SENSORS >> click here

 

How is the SQ-522 different from previous Apogee quantum sensors?

The SQ-522 is a full spectrum quantum sensor with a spectral range of 389 to 692 nm ± 5 nm, which can be seen in the graph below. This improved spectral response increases the accuracy of LED measurements.
SQ-500 & SQ-100 Spectral Response
Where is the SQ-522 used?

The SQ-522 is used to measure incoming PPFD measurements in outdoor environments, greenhouses, growth chambers, and aquariums.
Full Description
Where to Buy

The SQ-522-SS sensor outputs a digital signal using Modbus RTU protocol over RS-232 or RS-485. The sensor incorporates a rugged, self-cleaning sensor housing design, anodized aluminum body with acrylic diffuser, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. Typical applications include PPFD measurement over plant canopies in outdoor environments, greenhouses, and growth chambers, and reflected or under-canopy (transmitted) PPFD measurements in the same environments. Quantum sensors are also used to measure PAR/PPFD in aquatic environments, including salt water aquariums where corals are grown.

 

FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS

• Product Manual

• Specification Sheet

• Technical Drawing

 

MORE INFORMATION ON APOGEE FULL-SPECTRUM QUANTUM SENSORS >> click here

 

How is the SQ-522 different from previous Apogee quantum sensors?

The SQ-522 is a full spectrum quantum sensor with a spectral range of 389 to 692 nm ± 5 nm, which can be seen in the graph below. This improved spectral response increases the accuracy of LED measurements.
SQ-500 & SQ-100 Spectral Response
Where is the SQ-522 used?

The SQ-522 is used to measure incoming PPFD measurements in outdoor environments, greenhouses, growth chambers, and aquariums.
Current Stock:
Input Voltage Requirement 5.5 to 24 V DC Average Max Current Draw RS-232 quiescent 36.87 mA, active 37.06 mA; RS-485 quiescent 37.37 mA, active 42.30 mA Calibration Uncertainty ± 5 % Measurement Repeatability Less than 1 % Long-term Drift Less than 2 % per year Non-linearity Less than 1% (up to 4000 µmol mˉ² sˉ ¹) Spectral Range 389 to 692 nm ± 5 nm (wavelengths where response is greater than 50 % of maximum) Spectral Selectivity Less than 10 % from 412 to 682 nm ± 5 nm Directional (cosine) Response ± 2 % at 45˚, ± 5 % at 75˚ zenith angle Temperature Response -0.11 ± 0.04 % per C Operating Environment -40 to 70 C, 0 to 100 % relative humidity, can be submerged in water up to depths of 30 m Dimensions 30.5 mm diameter, 37 mm height Mass (5 m of cable) 140 g Cable 5 m of two conductor, shielded, twisted-pair wire; additional cable available in multiples of 5 m; santoprene rubber jacket; pigtail lead wires Warranty 4 years against defects in materials and workmanship