美国Dwyer 热风速计8912

8912系列叶片式热风速计可测量风速、风量、温度、湿度和热量。1.7英寸（44 Mm）宽屏显示，清晰易读，可选风速单位英尺/分、米/秒、节、米/小时、千米/小时。此外，还可测量相对湿度、湿球温度、露点和热量，内置的传感器用来记录环境温度，单位为华氏度或摄氏度。8912系列主要功能包括数据保持，记录同一个点的*小、*大和平均读数，RS232接口设置。特有的分离式探头，根据需要可方便更换。可记录和平均2个小时的数据，同时显示连续运行的平均水平。每个产品均包含坚固的便携式外壳、4个AAA等级的电池、校准数据记录、安装手册，是暖通空调检测、能量审计和平衡应用理想的小巧型测量仪。

AIR VELOCITY
Range: 188 to 6299 ft/min (0.6 to 32 m/s).
Accuracy: ±5% of reading or last significant digit (whichever is greater).
Resolution: 0.1 ft/min (0.1 m/s).
Response Time: 1 second.

TEMPERATURE
Range: -4 to 140°F (-20 to 60°C).
Accuracy: ±1°F (±0.6°C).
Resolution: 0.1°F/°C.
Response Time: 60 seconds.

RELATIVE HUMIDITY
Range: 0 to *.
Accuracy: ±3% @ 25°C from 10 to 90% RH. Outside this range: ±5%.
Resolution: 0.10%.
Response Time: 60 seconds.

AIR VOLUME
Range: 0 to 99999 (CFM or m3/s).
Accuracy: ±5% of reading or last significant digit (whichever is greater).
Resolution: 0.1 (0 to 9999.9) or 1 (10000 to 99999).
Response Time: 1 second.

WET BULB
Range: -7.6 to 158°F (-22 to 70°C).
Resolution: 0.1°F/°C.