库号：M3631867 品牌/制造商： 美国Global Water 型号：WL400
产品名称: 水位传感器
型号系列:WL400
品牌:global water
产地:美国
价格:**终成交价格需联系客服
准确可靠的水位压力传感器设计用于远程监测和记录地下水抽水和污泥测试、雨水洪水分析和径流以及地表水灌溉渠、溪流和河流测量中的水位和压力数据。
Global Water 的 WL400 水位传感器可为各种应用（包括恶劣环境中的应用）提供高精度的水位测量。投入式压力传感器具有动态温度补偿系统，可在较宽的温度范围内进行高精度测量。水位传感器很容易适应所有数据记录器、遥测、监控设备和显示器。
从 3 到 500 英尺的水位变化有多种深度范围可供选择。
传感器与大多数监控设备兼容
高精度水位测量
不受泡沫、风或雨的影响
湿湿换能器消除了通气管问题
自动气压和温度补偿
精心打造，可支持 3 英尺至 500 英尺的深度
可以测量液位和温度
水位传感器的浸入式压力传感器采用船用级环氧树脂完全封装，因此水分永远不会泄漏或沿通气管向下流，从而导致漂移或液位传感器故障（与其他压力传感器一样）。水位传感器使用独特的、高度灵活的硅膜片连接水和传感元件。这种硅膜片可保护水位传感器的电子设备免受潮气影响，并为每个传感器提供出色的线性度和极低的滞后。潜入式压力传感器的设计消除了与金属箔隔膜相关的问题，金属箔隔膜会随着时间的推移而起皱和拉伸，从而导致漂移、线性和滞后问题。由于连接的通风电缆，水位传感器还具有自动气压补偿功能。它由不锈钢微筛盖保护，几乎不可能被淤泥、泥浆或淤泥污染。水位传感器的设计非常适合所有盐水应用，包括潮位监测、浮船坞等。
每个潜水压力传感器都有一个与水深成线性关系的两线制 4-20 mA 输出信号。操作水位传感器需要 10 至 36 VDC 电压，以便可以使用普通 12 VDC 电池系统操作水位传感器。4-20 mA 信号从潜水压力传感器到测井设备的传输距离可达 3,000 英尺。一旦电缆出水，普通的双绞线或电气延长线可以拼接到通风电缆上。4-20 mA 信号可通过 125 欧姆电阻器上的电流信号转换为 0.5 至 2.5 VDC。
传感器元件:硅胶膜片，湿/湿传感器
范围:0-3', 0-15', 0-30', 0-60', 0-120',0-250'
线性度和滞后:±0.1% 满量程
准确性:恒温下 ±0.1% FS，35° 至 70°F 范围内 ±0.2%
超压:不超过 2 x 满量程分辨率：无穷小（模拟）
输出:4-20mA，或 0.5 至 2.5 VDC，跨 125 欧姆电阻
电源电压:10-36VDC
当前抽奖:与传感器输出相同。
热身时间:**少 10 毫秒
工作温度:-40° 至 +185°F
重量:1/2 磅
补偿温度范围:30 至 70°F 浸没，自动气压补偿
材料:304L不锈钢
尺寸:** 5 1/2” 长 x 13/16” 直径
重量:~115 克（4 盎司）
导体:4 个 22 AWG
护套材料:87A 肖氏硬度聚氨酯
可选夹克:氟化乙烯丙烯 (FEP) 聚四氟乙烯
电缆外径:7.8 毫米（0.307 英寸）
排气管:高清聚乙烯
盾:铝麦拉
温度范围:-30 至 85°C（-22 至 185°F）
重量:~65 克/平方米（0.7 盎司/英尺） 
中文内容来自机器翻译，内容仅供参考，实际内容可参考原厂介绍或以合同为准。
英文原文：
Accurate and reliable Water Level pressure transducer designed for remote monitoring and recording of water level and pressure data in groundwater pumping and sludge tests, stormwater flood analysis, and run-off, as well as surface water irrigation canals, streams, and river gauging.
Overview
Global Water's WL400 Water Level Sensor provides highly accurate water level measurement for various applications, including those in severe environments. The submersible pressure transducers have a dynamic temperature compensation system, enabling high accuracy measurements over a wide temperature range. The water level sensor is easily adapted to all dataloggers, telemetry, monitoring equipment, and displays.
Multiple depth ranges are available from 3 to 500 feet of water level change.
Key Features:
Sensor compatible with most monitoring equipment
Highly accurate water level measurements
Not affected by foam, wind, or rain
Wet-wet transducer eliminates vent tube concerns
Automatic barometric pressure and temperature compensation
Well-built to support depths of 3ft to 500 ft
Can measure level and temperature
The Water Level Sensor's submersible pressure transducer is fully encapsulated with marine-grade epoxy so that moisture can never leak in or work its way down the vent tube to cause drift or level sensor failure (as is the case with other pressure sensors). The water level sensor uses a unique, highly flexible silicon diaphragm to interface between water and the sensing element. This silicon diaphragm protects the water level sensor's electronics from moisture and provides each sensor with exceptional linearity and very low hysteresis. The design of the submersible pressure transducers eliminates the issues associated with metal foil diaphragms, which tend to crinkle and stretch out over time, causing drift, linearity, and hysteresis problems. The water level sensor also has automatically barometric compensation due to the attached vent cable. It is protected by a stainless steel micro-screen cap, making fouling with silt, mud, or sludge virtually impossible. The water level sensor's design is great for all saltwater applications, including tide level monitoring, floating docks, etc.
Each submersible pressure transducer has a two-wire 4-20 mA output signal linear with water depth. From 10 to 36 VDC is required to operate the water level sensor so that the level sensors can be operated from common 12 VDC battery systems. The 4-20 mA signal can run up to 3,000 ft from the submersible pressure transducer to the logging device. Common twisted pair or electrical extension cord wire may be spliced to the vented cable once the cable is out of the water. The 4-20 mA signal may be converted to 0.5 to 2.5 VDC by dropping the current signal across a 125-ohm resistor.
Specifications
Sensor Element:Silicone Diaphragm, Wet/Wet Transducer
Ranges:0-3', 0-15', 0-30', 0-60', 0-120',0-250'
Linearity and Hysteresis:±0.1% FS
Accuracy:±0.1% FS at constant temperature, ±0.2% over 35° to 70°F range
Overpressure:Not to exceed 2 x full-scale range Resolution: Infinitesimal (Analog)
Outputs:4-20mA, or 0.5 to 2.5 VDC across 125-ohm resistor
Supply Voltage:10-36VDC
Current Draw: Same as sensor output.
Warm-Up Time:10 ms minimum
Operating Temperature:-40° to +185°F
Weight:1/2 lb.
Compensated Temperature Range:30 to 70°F submerged, automatic barometric compensation
Material：304L SS
Size：up to 5 1/2” long x 13/16" diameter
Weight：~115g (4 oz)
Conductors：4 each 22 AWG
Jacket Material：87A shore hardness Polyurethane
Optional Jacket：Fluorinated Ethylene Propylene (FEP) Teflon
Cable O.D.：7.8mm (0.307”)
Vent Tube HD Polyethylene：Shield
Aluminum Mylar：Temperature Range -30 to 85°C (-22 to 185°F)
Weight：~65g/m (0.7 oz/ft)
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