	SQ-640-SS	SQ-642-SS	SQ-644-SS	SQ-645-SS	SQ-646.	SQ-647-SS
电源供应	自我支持	5 to 24 V DC	12到24 V DC	5.5至24 V DC	5 V USB电源	5.5至24 V DC
电流消耗	-	12 V is 57 µA	Maximum of 20 mA	12 V is 57 µA	记录时61 mA	1.4 mA（静止），1.8 mA（活跃）
灵敏度	1 mV per µmol m^-2s^-1	12.5 mV per µmol m^-2s^-1	0.08 mA per µmol m^-2s^-1	25 mV per µmol m^-2s^-1	-	-
Output Type	0 to 200 mV	0 to 2.5 V	4到20 mA	0 to 5 V	USB	SDI-12
解析度	-	-	-	-	0.1 µmol m^-2s^-1	-
Calibration Factor	1μmol米^-2s^-1每个mv.	0.08 µmol m^-2s^-1每个mv.	12.5μmolM.^-2s^-1每马	0.04 µmol m^-2s^-1每个mv.	Custom for each sensor and stored in the firmware	Custom for each sensor and stored in the firmware
Calibration Uncertainty	± 5 %	± 5 %	± 5 %	± 5 %	± 5 %	± 5 %
测量范围	0 to 200 µmol m^-2s^-1	0 to 200 µmol m^-2s^-1	0 to 200 µmol m^-2s^-1	0 to 200 µmol m^-2s^-1	0 to 200 µmol m^-2s^-1	0 to 200 µmol m^-2s^-1
Measurement Repeatability	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %
Long-term Drift per Year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year
Non-linearity	Less than 1 % (up to 400 µmol m^-2s^-1)	Less than 1 % (up to 400 µmol m^-2s^-1)	Less than 1 % (up to 400 µmol m^-2s^-1)	Less than 1 % (up to 400 µmol m^-2s^-1)	Less than 1 % (up to 400 µmol m^-2s^-1)	Less than 1 % (up to 400 µmol m^-2s^-1)
响应时间	Less than 1 ms	Less than 1 ms	Less than 1 ms	Less than 1 ms	软件更新每秒	Less than 0.6 s
视野	180°	180°	180°	180°	180°	180°
光谱范围	340至1040 nm±5 nm（波长响应大于最大值的50％）	340至1040 nm±5 nm（波长响应大于最大值的50％）	340至1040 nm±5 nm（波长响应大于最大值的50％）	340至1040 nm±5 nm（波长响应大于最大值的50％）	340至1040 nm±5 nm（波长响应大于最大值的50％）	340至1040 nm±5 nm（波长响应大于最大值的50％）
定向（余弦）响应	± 2 % at 45°; ± 5 % at 75° zenith angle	± 2 % at 45°; ± 5 % at 75° zenith angle	± 2 % at 45°; ± 5 % at 75° zenith angle	± 2 % at 45°; ± 5 % at 75° zenith angle	± 2 % at 45°; ± 5 % at 75° zenith angle	± 2 % at 45°; ± 5 % at 75° zenith angle
Azimuth Error	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %
Tilt Error	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %	Less than 0.5 %
Temperature Response	-0.11±0.04％/每C	-0.11±0.04％/每C	-0.11±0.04％/每C	-0.11±0.04％/每C	-0.11±0.04％/每C	-0.11±0.04％/每C
日常生活中的不确定性	不到5％	不到5％	不到5％	不到5％	不到5％	不到5％
住房	阳极氧化铝机身用丙烯酸漫射器	阳极氧化铝机身用丙烯酸漫射器	阳极氧化铝机身用丙烯酸漫射器	阳极氧化铝机身用丙烯酸漫射器	阳极氧化铝机身用丙烯酸漫射器	阳极氧化铝机身用丙烯酸漫射器
IP Rating	IP68	IP68	IP68	IP68	IP68	IP68
Operating Environment	-40到70 c;0至100％相对湿度;可以在水中浸入30米的深处	-40到70 c;0至100％相对湿度;可以在水中浸入30米的深处	-40到70 c;0至100％相对湿度;可以在水中浸入30米的深处	-40到70 c;0至100％相对湿度;可以在水中浸入30米的深处	-40到70 c;0至100％相对湿度;可以在水中浸入30米的深处	-40到70 c;0至100％相对湿度;可以在水中浸入30米的深处
Dimensions	30.5 mm diameter, 37 mm height	30.5 mm diameter, 37 mm height	30.5 mm diameter, 37 mm height	30.5 mm diameter, 37 mm height	30.5 mm diameter, 37 mm height	30.5 mm diameter, 37 mm height
电缆的质量(5米)	140克	140克	140克	140克	140克	140克
Warranty	4 years against defects in materials and workmanship	4 years against defects in materials and workmanship	4 years against defects in materials and workmanship	4 years against defects in materials and workmanship	4 years against defects in materials and workmanship	4 years against defects in materials and workmanship