AQT530 specifications

Table 1. AQT530 measurement performance – gases
Property	NO₂	NO	O₃	CO
Concentration range	2000 ppb	2000 ppb	2000 ppb	10 000 ppb
Detection limit	5 ppb	5 ppb	5 ppb	10 ppb

Table 2. AQT530 field performance – gases
Property ¹	NO₂ ²	NO	O₃ ²	CO
Correlation with reference ³	R²: 0.80	R²: 0.75	R²: 0.80	R²: 0.85
Accuracy ⁴	5 ppb	15 ppb	6 ppb	183 ppb
Unit‑to‑unit correlation ⁵	R²: 0.98	R²: 0.96	R²: 0.95	R²: 0.97
Precision ⁵	3 ppb	3 ppb	4 ppb	25 ppb

Table 3. AQT530 measurement performance – particles
Property	PM_2.5	PM₁₀
Size range ⁶	0.6 … 2.5 μm	0.6 … 10 μm
Concentration range ⁷	0 … 1000 μg/m³	0 … 2500 μg/m³
Detection limit	0.1 μg/m³	0.1 μg/m³
Accuracy ⁸	5 %	6 %
Precision ⁸ ⁹	2 %	2 %

Table 4. AQT530 field performance – particles
Property ¹⁰	PM_2.5	PM₁₀
Correlation with reference ¹¹	R²: 0.65	R²: 0.75
Accuracy ¹²	9 μg/m³	13 μg/m³
Unit‑to‑unit correlation ¹³	R²: 0.97	R²: 0.97
Precision ¹³	2 μg/m³	3 μg/m³

Table 5. AQT530 operating environment
Property	Description/Value
Operating environment	Outdoor use
Use in wet location	Yes
Operating temperature	−30 … +40 °C (−22 … +104 °F) ¹⁴
Storage temperature	+20 … +25 °C (+68 … +77 °F)
Operating humidity	15 … 100 %RH, non‑condensing ¹⁵ ¹⁶
Storage humidity	20 … 75 %RH
Operating pressure	800 … 1150 hPa
IP rating	IP65: Dust-tight. Protected from water jets from any direction. ¹⁷

Table 6. AQT530 powering
Property	Description/Value
Operating voltage	10 - 25 V DC, max. 1 A at 10 V DC ¹⁸
Power consumption, max. peak ¹⁸	10 W
Power consumption (average with default settings)
Gas and particle measurement	1.8 … 4.4 W ¹⁹
Gas measurement	1.4 … 3.8 W ²⁰
Particle measurement	1.7 … 2.0 W ²¹

Table 7. AQT530 data connection specifications
Property	Description/Value
Data output	Modbus® ASCII, Modbus® RTU, ASCII CSV
Serial data interface	RS‑485
Maintenance interface ²²	RS‑232

Table 8. AQT530 mechanical specifications
Property	Description/Value
Dimensions (H × Ø)	335 × 133 mm (13.19 × 5.24 in)
Weight, with mounting kit	2.4 kg (5.29 lb)
Color, radiation shield	White (RAL9003)
Material, base module	Anodized aluminum
Material, radiation shield	Polycarbonate (PC)
Power and data connector	Standard 8‑pin M12 male

Table 9. AQT530 compliance
Property	Description/Value
EU directives and regulations	EMC Directive (2014/30/EU) REACH Regulation (EC 1907/2006) RoHS Directive (2011/65/EU) amended by 2015/863
EMC immunity ²³	EN 61326‑1, industrial environment
EMC emissions	CISPR 32 / EN 55032, Class B
Cold	IEC 60068‑2‑1
Dry heat	IEC 60068‑2‑2
Damp heat	IEC 60068‑2‑78
Eye safety	IEC 60825‑1:2014 Class 1 laser product
Compliance marks	CE, China RoHS, FCC, RCM, UKCA

¹ All values are based on 1‑hour averages with factory calibration, no linear correction applied. Values are obtained from global field testing in major climate zones against reference instruments. The values represent typical values and may be different based on the location.

² At 10 V/m RF field test, the presence of electromagnetic interference in the range of 800 … 900 MHz may cause additional deviation for NO₂ and O₃.

³ Typical R² against a reference grade instrument derived from field tests globally.

⁴ Mean absolute error against reference.

⁵ Mean absolute difference of AQT530 reading from average reading of AQT530s.

⁶ Spherical equivalent size of DEHS particles. Lower detection limit of 0.6 μm defined as 50 % detection efficiency for DEHS particles.

⁷ Specified with ISO 12103‑1, A1 ultrafine test dust.

⁸ Measured against a certified reference grade instrument at room temperature using Arizona dust equivalent (ISO 12103-1, A1 Ultrafine test dust). PM_2.5 measured at 150 μg/m³ and PM₁₀ at 1300 μg/m³. Accuracy and precision are defined with 2 standard deviations.

⁹ Unit-to-unit variation. Defined as difference of AQT530 reading from average reading of AQT530s.

¹⁰ All values are based on 1‑hour averages with factory calibration, no linear correction applied. Values are obtained from global field testing in major climate zones against different reference equivalent methods. The values represent typical values and may be different based on the location and reference instrument. Majority of particle mass within size range.

¹¹ Typical R² against a reference grade instrument derived from field tests globally.

¹² Mean absolute error against reference.

¹³ Mean absolute difference of AQT530 reading from average reading of AQT530s.

¹⁴ Optimal performance at −10 … +30 °C (−14 … +86 °F).

¹⁵ Optimal performance at 15 … 90 %RH. Operation in low-humidity environments may weaken the gas measurement performance. Operation in high-humidity environments may weaken the particle measurement performance.

¹⁶ Water uptake of particles may result in PM overestimation. In most cases this is indicated by the sensor.

¹⁷ Specified for gas measurement device only.

¹⁸ Humidity management active, particle measurement active, temperature < 0 °C (32 °F).

¹⁹ Maximum consumption when humidity > 85 %RH, temperature < 0 °C (32 °F), default particle measurement cycle.

²⁰ Maximum consumption when humidity > 85 %RH.

²¹ Maximum consumption when temperature < 0 °C (32 °F), default particle measurement cycle.

²² Recommended Vaisala USB maintenance cable kit (253163SET).

²³ At 10 V/m RF field test, the presence of electromagnetic interference in the range of 800 … 900 MHz may cause additional deviation for NO₂ and O₃.

AQT530 specifications - BWS500

BWS500 Technical Specification