SDX
压力式水位计
Stevens SDX（压力式水位计）是一款压力式模拟传感器，提供精准的测量结果，对于大多数水位测量用户来说，这款传感器比较经济实惠。
耐冲击和防腐蚀的II类PVC外壳与密封的电子元件，使SDX在水中或大多数恶劣的液态环境中也能非常持久耐用，而不被损坏。若需要将传感器置于易损坏条件下进行水位测量时，SDX是解决这一问题的最佳选择。
SDX可根据用户指定长度配备导气线缆。通过通风口为传感器提供大气参数，确保在水位测量时达到最高精度。
SDX的模拟输出信号为4~20 mA。与现有的供电和数据采集器兼容，远程监测站安装配置方便，便于数据采集。
传感器外壳设计为管状带螺纹设计，便于将SDX稳固安装在管道、槽口或其他部件之上。
- 具有坚固的外壳，完全密封的电子元件，可防止被冰冻损坏
- 结构紧凑
- 满量精度：±0.25%
- 模拟输出（4~20 mA）
- 开口型线缆，两根，具有排水口
- 加重型铜质防风锥
可选干燥管
SDX是一款“Wet-Wet”设计传感器。在防止SDX线缆导气管不被阻塞完成气压补偿方面起着重要作用，压力传感器和内部电子元件均不会被进入导气管的凝结物或水蒸气损坏。为了达到最佳效果，Stevens推荐使用干燥管
What's the Easiest and Quickest Way to Start Collecting Data and Access it Anywhere?
The Answer's in the Cloud.
eTracker is a cellular modem and "virtual" cloud-based data logger in one (meaning you don't need to install a separate data logger). Simply connect your sensor and a power source to eTracker and you're done. Configure (or reconfigure) anytime from any Internet-connected device, and use Stevens-Connect to retrieve your data, or forward it to your favorite software system.
技术参数
Power requirements |
9 - 30 VDC |
|---|---|
|
Output |
4-20 mA current signal, linearly corresponding to range |
|
Operating temperature |
-40° F to 185° F (-40° C to 85° C) |
|
Compensated temperature |
32° F to 122° F (0° C to 50° C) |
|
Linearity |
0-2.5 ft range: 0.2% max. |
|
Repeatability & hysteresis |
Typical: ± 0.2% span |
|
Reverse polarity protection |
Built into sensor |
|
Overpressure |
0-2.5 ft: 20 psi max. |
|
Shock |
Qualification tested to 150 g |
|
Wiring |
Red: power |
|
Pipe threading |
1/2-14 straight pipe thread (back of sensor housing near cable) |
|
Physical size |
4.00" L x 0.84" dia. (101.6 mm L x 21.33 mm dia.) |
|
Weight |
Probe: 2.37 oz (61.19 g) |
Stevens Water Monitoring Systems, Inc. | Portland, OR, USA