德国wika威卡RLT-2000塑料浮球液位计

德国wika威卡RLT-2000干簧电阻液位传感器 
德国wika威卡RLT-2000的应用
设备制造中的液位测量
重要介质的控制及监测
德国wika威卡RLT-2000的功能特性
适用介质： 水介质和腐蚀性液体
接液材质： PP或PVDF
信号输出：3线分压器电阻信号或4…20mA电流信号
测量精度、分辨率： 24 mm [0.9 in], 12 mm [0.5 in], 10 mm [0.4 in], 6 mm [0.2 in] 或 3 mm [0.1 in]
德国wika威卡RLT-2000的描述
RLT-2000液位传感器主要用于液位测量。
威卡RLT-2000液位传感器的测量原理
浮球内磁钢的磁力线穿过导管，感应导管内干簧和电阻链，通过三线分压器产生与液位成正比例关系的电阻信号。RLT-2000也可选用输出4…20mA的模拟信号。

Level sensor, model RLT-2000
Measuring principle Reed-chain technology with optional analogue amplifier
Measuring range M The measuring range is determined from the selected guide tube length L and the position of the 100 % mark.
For dimensions see drawing
Guide tube length L 150 ... 1,500 mm [6 ... 59 in]
Output signal ■ Variable resistance
The overall resistance of the reed chain is approx. 1 ... 10 kΩ, depending on the measuring range
Max. voltage < DC 40 V
■ Current output, 4 ... 20 mA, 2-wire
Power supply: DC 12 ... 32 V
Load in Ω: ≤ (power supply - 12 V) / 0.02 A
Accuracy, resolution ■ 24 mm [0.9 in] 1)
■ 12 mm [0.5 in] 1)
■ 10 mm [0.4 in] 2)
■ 6 mm [0.2 in] 1)
■ 3 mm [0.1 in] 1)
Mounting position Vertical ±30°
Process connection ■ G 1 ½, installation from outside 3)
■ G 2, installation from outside
■ G ⅜, installation from inside 4)
■ G ½, installation from inside 4)
Material
■ Wetted
■ Non-wetted
Process connection, guide tube: PP, PVDF (option)
Case: PP, PVDF (option)
Float: See table page 3
Electrical connection: See table below
Permissible temperatures
■ Medium
■ Ambient
■ Storage
PP version
-10 … +80 °C [14 … 176 °F]
-10 … +80 °C [14 … 176 °F]
-10 … +80 °C [14 … 176 °F]
PVDF version (option)
-10 … +80 °C [14 … 176 °F], option: -30 … +120 °C [-22 … +248 °F] 5)
-30 … +80 °C [-22 … +176 °F]
-30 … +80 °C [-22 … +176 °F]