Dwyer AVU系列 風速變送器

于樓宇自動化系統的AVU系列風速變送器能廣泛地用于暖通空調系統進行風速測量和控制，特別是用于建筑物能量管理系統。AVU的精度為5%，價格低，有六種量程范圍供選擇，可輸出4-20MA或0-10VDC。

AVU的工作原理是用兩個溫度傳感元件測量被風帶走的熱量，然后計算出風速。采用了特別設計，能夠精確測量，不會產生漂移。

應用：

1 進風和排風監測

2 潔凈室系統

3 醫護室

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.