德国wikaRLT-3000干簧电阻链式液位传感器

德国wikaRLT-3000干簧电阻链式液位传感器 wika授权代理
威卡RLT-3000液位计的应用
机器制造中液体的液位和温度测量
液压机、压缩机、制冷系统等设备的控制和监控
威卡RLT-3000液位计的功能特性
适用介质： 油、水、柴油、制冷剂和其他液体
液位：电流输出4 ... 20 mA
温度：Pt100、Pt1000，精度等级：B
威卡RLT-3000液位计的描述
RLT-3000液位传感器带温度信号输出可以同时测量液位和液体温度，其采用不锈钢材质，适用多种介质，如油、水、柴油、制冷剂。
测量原理
浮球内磁钢的磁力线穿过导管，感应导管内干簧和电阻链，通过内部变送器将其转换为4..20mA模拟信号，输出信号与液位成正比例关系。
温度测量：导管底部安装温变电阻。

Level sensor,
model RLT-3000
Level Temperature
Measuring principle Reed-chain technology with optional analogue amplifier Pt100 or Pt1000 measuring resistor
Measuring range The measuring range M is determined from the selected
guide tube length L and the position of the 100 % mark.
For dimensions see drawing
■ Pt100
■ Pt1000
Guide tube length L 150 ... 1,500 mm [6 ... 59 in], greater lengths on request
Output signal Current output, 4 ... 20 mA, 2-wire
Power supply: DC 12 ... 32 V
Load in Ω: ≤ (power supply - 12 V) / 0.02 A
■ Pt100, 2-wire
■ Pt1000, 2-wire
Accuracy ■ 24 mm [0.9 in] 1)
■ 12 mm [0.5 in] 2)
■ 10 mm [0.4 in] 3)
■ 6 mm [0.2 in] 2)
■ 3 mm [0.1 in] 2)
For reed-chain technology, the accuracy corresponds to
the resolution.
Class B per DIN EN 60751
Mounting position Vertical ±30°
Process connection ■ G 1, installation from outside
■ G 1 ½, installation from outside
■ G 2, installation from outside
■ Flange DN 50, form B per DIN 2527/EN 1092, PN 16, installation from outside
Material
Wetted Process connection, guide tube: Stainless steel 1.4571 (316 Ti)
Float: See table on page 3
Non-wetted Case: Stainless steel 1.4571 (316Ti)
Electrical connection: See table below
Permissible temperatures
Medium -30 … +100 °C [-22 … +212 °F]
Ambient -30 … +80 °C [-22 … +176 °F]
Storage -30 … +80 °C [-22 … +176 °F]