856系列压力变送器/ 传感器
工业压力传感器
特性...
- 0-2到0-10,000psi压力范围
- 电压或电流输出
- NEMA 4/IP65带零位调节和跨程调节
概况/设计原则:
856系列压力传感器设计应用于NEMA 4/IP65防护等级的测量,采用铸铝外壳。这种坚固的外壳设计可抵抗外部作用,例如冲击、振动、温度及电磁干扰、射频干扰等。17-4PH不锈钢感应元件可在腐蚀性介质中使用。一个½"线状导管用于电气传输,可移动盖子使得终端接线简单易行.
工作原理:
Gems Sensors & Controls公司**技术的变电容传感器具有一个绝缘电极板,固定在传感器薄膜的中心,构成可变电容。当压力升高和降低时,电容随之变化。电容的变化被检测到并通过Gems的ASIC电路转换为线性模拟信号,产生一个和实际压力成比例的信号输出.
典型应用:
-
过程控制
-
化学处理
-
农业灌溉
-
天然气管道
-
谷物加工
-
工业压力监测
Specifications Input Pressure Range
0-10,000 psig (0-700 bar)
Proof Pressure
See ordering chart
Burst Pressure
See ordering chart
Fatigue Life
>1 million cycles
Performance Supply Voltage (Vs)
9-30 Vdc
Long Term Drift
0.5% FS/year
Accuracy <25 psi
±0.25% FS
Accuracy >=25 psi< /P>
±0.13% FS
Thermal Error Zero <25 psi
±0.02% FS/°F (±0.036% FS/°C)
Thermal Error Zero >=25 psi< /P>
±0.01% FS/°F (±0.018% FS/°C)
Thermal Error Span
±0.015% FS/°F (±0.027% FS/°C)
Compensated Temperature
-4°F to +176°F (-20°C to +80°C)
Operating Temperatures
-40°F to +260°F (-40°C to +125°C)
Storage Temperatures
-40°F to +260°F (-40°C to +125°C)
Zero Tolerance
.5% of span (adjustable)
Span Tolerance
1% of span (adjustable)
Mechanical Configuration Pressure Port
See ordering chart
Wetted Parts
17-4 PH Stainless Steel
Electrical Connection
Two 1/2" Internal Threaded Ports, Screw Terminal Strip
Enclosure
Die-Cast Aluminum, NEMA 4/IP65
Vibration
20g (MIL STD 202, Method 204, Condition C)
Shock
200g (MIL STD 202, Method 213B, Condition C)
Approvals
CE
Weight
13.4 oz
Voltage Output Units Output
0.1-5.1 Vdc (3 wire)
Current Consumption
6 mA
Min. Load Resistance
5000 ohms
Current Output Units Output
4-20 mA (2 wire)
Max. Loop Resistance
(Vs-9) x 50 ohms