Rotary Paddle
Type NL/NM Series
This standard rotary type level switch supports every condition. As it can be handled easily, it is operated stably for a long term.
- High-temperature specifications and load bearing specifications are available.
- As the internal mechanism has been unitized, the switch can be replaced without detaching the main body from the tank.
- A clutch mechanism is provided as standard equipment to protect the motor from overloads on the paddle.
- Various apparent specific gravities can be supported by selecting a suitable paddle shape
When the deposits of measured substances restrain the paddle being rotated by the motor, the contact is output to stop the motor. When there is no more deposit left, the motor resumes rotation.
| Power Source | 100～110VAC or 200～220VAC 50/60Hz |
| Power Consumption | 4W |
| Contact Capacity | 250VAC 5A Resistance Load |
| Rate of Rotation | 1rpm (50Hz) |
| Allowable Temperature | below 50℃（in a tank） |
| Withstand Voltage | 1500VAC one minute for in between terminal and housing (Each Terminal ～ Case) |
| Allowable Pressure | 19.6KPa |
| Color | Gold |
| Process Connection | G1B or Equivalent to JIS 5K 65A |
| Enclosure Rating | Equivalent to IP55 |
Diaphragm Type
KF-500 Series
No power source is needed!
Viscous liquids and high-temperature liquids can also be detected!
- As the moving part design is simple, stable operations are ensured.
- A liquid in a tank contacts the detecting pipe but does not touch the main body of the switch.
- Even highly viscous and cohesive liquids as well as high-temperature liquids that are difficult to detect through a float switch can be measured with relative ease.
When the water level in the tank rises, the internal pressure of the detecting pipe increases and the diaphragm pushes the micro switch to produce contact output. When the water level falls and the internal pressure of the detecting pipe decreases, the contact output is released by the return force of the micro switch and the weight of the diaphragm.
| Contact Capacity | AC250V 5A |
| Allowable Temperature | -20～+70℃ |
| Allowable Pressure | ATM |
| Operating Water Level | 40 ± 10mm |
| Breaking Water Level | 30 ± 10mm |
| Color | Gold |
| Process Connection | G1B |
| Enclosure Rating | Equivalent to IP-54 |
Capacitance Type
Level Switch ALN/SL Series
The capacitance type level switch detects level points of whatever kind of substances (powders, granules, lumps, liquids, pastes, bubbles, etc.). More than 1,000 types of electrode shapes and special circuits are available for various applications.
- It has high sensitivity and stability.
- It has excellent mechanical strength and durability.
- It stably detects even extraneous matter and deposits.
- It can also be used for highly conductive substances.
- It can easily detect highly corrosive substances.
- Certified with NEPSI (explosion proof regulation China).
- Powder
- Granules
- Liquid
- Surface Interface
- Bubble
It measures the capacitance variations between the main electrode and the tank wall or the main electrode and the grounding electrode. As the level rises, the capacitance value increases, and the contact is output when it exceeds the set value.
| Power Source | 105 / 210VAC ±10% 50/60Hz |
| Power Consumption | 4.5VA |
| Contact Capacity | 250VAC 10A, 30VDC 10A |
| Allowable Temperature | -25℃～+60℃ |
| Stable Detection Range | 1：High Sensitivity 0.5～20pF 2：Standard Sensitivity 2～50pF 3：Low Sensitivity 20～1000pF 4：Ultra Low Sensitivity 5～35Ω |
| ON Delay | Max.10 seconds, variable |
| Color | Gold |
| Enclosure Rating | IP-67 |