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参数资料
| 型号： | 84870808 |
| 厂商： | Crouzet USA |
| 文件页数： | 1/3页 |
| 文件大小： | 0K |
| 描述： | L2N 230V SP0001 |
| 其它有关文件： | Declaration of Conformity |
| 标准包装： | 1 |
| 系列： | L2N |
| 类型： | 电平控制 - 通用 |
| 应用： | 充水和排水控制 |
| 安装类型： | 插座安装（11位置） |
| 电源电压： | 230VAC |
10/04/2014
L2N plug-in filling/emptying function L2N Part number 84870808
Relay for controlling level of conductive liquids
Combined fill and empty functions
Combined regulation of pumping out a well and filling a tank
Plug in (11 pins)
Output relay status display LED
Sensitivity adjustable from 5 k Ω? to 100 k Ω
Part numbers
www.crouzet.com
Type
Supply voltage
Base
84 870 808
L2N
230 V AC
11-pin (special base)
Specifications
Supply voltage Un
Operating range
Max. absorbed power
Adjustable sensitivity
Measurement accuracy (at maximum sensitivity)
Electrode voltage (max)
Electrode current (maximum)
Maximum cable capacity
Response time high level
Response time low level
Output relay (according to AC1 resistive load)
Galvanic isolation via transformer (4 kV, 8 mm creepage
distance)
Isolation of contacts and electrodes from power supply
Temperature limits use (°C)
Temperature limits stored (°C)
Weight (g)
230 V, 110 V, 48 V, 24 V AC, 50/60 Hz
0,85?→1,15?x?Un
3 VA
5 k Ω→100?kΩ
0?→+30?%
24 V AC (50/60 Hz)
1 mA (50/60 Hz)
10 nF
300 ms
500 ms
1 AgCdO switch 8 A AC max.
Class II
2,5 kV AC
- 20?→+60
- 30?→+70
140
Principles
Operating principle
Control of maximum and/or minimum levels of conductive liquids (tap water, sea water, waste water, chemical solutions, coffee etc).
The principle is based on measurement of the apparent resistance of the liquid between two submerged probes. When this value is lower than the preset threshold on the unit front face, the output
relay changes state. To avoid electrolytic phenomena, an AC current funs across the probes. Applications found in environmental, chemical industries and food technology etc.
Combined Fill / Empty function
The output relay changes state when the level of liquid in the tank reaches the "max" electrode, with the "min" electrode submerged. It returns to its initial state when the "min" sensor is no longer in
contact with the liquid.
When the level of liquid in the well reaches the "min" electrode, the pump stops.
If, on power-up or after a power break, the "max" electrode in the tank is above the surface, reset the device by pressing the PB pushbutton.
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
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