Dwyer AVU系列 風(fēng)速變送器

最适用(yòng)于樓宇自(zì)動化系統的AVU系列風(fēng)速變送器能(néng)廣泛地用(yòng)于暖通空(kōng)調系統進行風(fēng)速測量和(hé)控制，特别是用(yòng)于建築物能(néng)量管理(lǐ)系統。AVU的精度爲5%，價格低(dī)，有六種量程範圍供選擇，可輸出4-20MA或0-10VDC。

AVU的工(gōng)作(zuò)原理(lǐ)是用(yòng)兩個溫度傳感元件測量被風(fēng)帶走的熱量，然後計(jì)算(suàn)出風(fēng)速。采用(yòng)了(le)特别設計(jì)，能(néng)夠精确測量，不會(huì)産生漂移。

應用(yòng)：

1 進風(fēng)和(hé)排風(fēng)監測

2 潔淨室系統

3 醫(yī)護室

Service: Clean Air And Compatible, Non-Combustible Gases.

Accuracy: ±5% Of Full Scale.

Response Time (90%): 5 Sec (Typical).

Temperature Limits: 32 To 122°F (0 To 50°C).

Humidity Limit: 0-90% RH, Non-Condensing.

Power Requirements: -A Models 24 VDC +10% - 15%; -V Models 24 VDC Or 24 VAC +10% - 15%.

Output Signal: -A Models 4-20 MA Current Loop; -V Models 0-10 VDC.

Loop Resistance: (-A Models ) 700 Ohms.

Current Consumption: 60 MA + Output Current.

Maximum Start Up Current: 85 MA; 10 V.

Output Current Limit: (-V Models) >10 MA.

Electrical Connections: Screw Terminal. Cable Gland For 4-8 Mm Wire (16 Gauge Wire).

Enclosure Rating: NEMA 6 (IP67) Except Sensing Point.

Probe Dimensions: 9.45 X .75" (240 X 19 Mm).

Mounting Orientation: Unit Not Position Sensitive. Probe Must Be Aligned With Air Flow.

Weight: 8.8 Oz (250 G).

Agency Approvals: CE.

ACCESSORIES:

NISTCAL-AV1 - NIST Traceable Calibration Certificate For Air Velocity Thermal Anemometer Meters.