产品介绍：
650系列 温度变送器价格低，尺寸小，广泛地用于暖通空调系统和其它工业场合中需要多点监测温度的地方。可任意正向或反向连接12-35 VDC电源。特别适合用于远程监测水和空气温度的场合。三种型号都在工厂校准达到0.3%的精度，0.25%的线性度，温度低端为4mA，高端为20mA，可校准的范围见产品说明书。
nput: Silicone-junction transistor.
Output Signal: 4 to 20 mA DC.
Power Requirements: 12 to 35 volts DC.
Accuracy: ±0.3% FS @ 20°C (68°F).
Linearity: Within 0.25% of span.
Thermal Drift: Less than 0.5% of span over ambient temperature range of 0 to 50°C (32 to 122°F).
Probe Construction: 6" long, 0.25" O.D. Type 304 SS.
Temperature Limits: Ambient: 0 to 70°C (32 to 158°F).
Temperature Limits (Probe): 204°C (400°F).
Probe Cable Length: 7 ft (2.1 m).
Voltage Stability: Output error less than 0.01% of span over the specified supply voltage range.
