
Model OX - Optical Interface Sensor
- Optimizes sludge discharge control
- No influence from ambient light
- Eliminates build up and fouling of probes
- Durable construction
- Ideal for corrosive liquids
** If purchasing replacement part, just give us the serial number and we will supply the correct part.**
General Description
Model OX optical interface sensor consists of a sensing probe and a separate electronic converter. Sediments, suspended solids, and interface of immiscible liquids are detected by using an infrared transmission operating principle. By transmitting the infrared light with pulse modulation, a strong beam goes through build up and fouling on the probe surfaces. Ambient light is electrically disregarded by using a special frequency.
The sensing probe is submersible and the PVC housing, PP sealing connector, and FEP covered probes are compatible with a wide range of liquids. Special PVC cable lengths are 20 meters. The detecting level can be easily adjusted by altering the height of the cable fixing point.
The electronic converter has a switch selectable High or Low fail-safe mode for relay safety. An adjustable 0.5 to 1 0 seconds switching delay is provided in order to avoid transient on/off signals.
Operational Description
When AC power is applied to a pair of isolated electrodes, without liquid between them, no current is delivered. When there is liquid, it becomes a part of electrical circuit and a current is delivered. When liquid contacts the electrode, MT directly detects the resistance and compares it with the value set in the relay unit to determine the liquid presence, then sends signals to amplifier, causing the relay to give output signals.

Operational Description
The OX consists of two element probes. A beam transmits from one which has a built in infrared emitting diode to the other which has a built in photo detector. When the probes are immersed into medium, the infrared beam transmission is decreased. This damping is detected and converted into an electric relay output.
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Catalog User ManualSensor
Model | OX-10 | OX-30 | OX-40 |
---|---|---|---|
Mounting | JIS5K65A | JIS5K65A | |
Supply Power | 100/200V AC 50/60Hz | ||
Power Consumption | Approx. 2.5VA Max. | ||
Relay Output | 1 SPDT, 250V 3A AC, 30V 3A DC (Resistive), C-A: Normally Open contact, C-B: Normally Closed contact. | ||
Detection Time Delay | Adjustable between 0.5 to 10 seconds | ||
Operating Temperature - Housing | -10 to 55 ℃ | -10 to 55 ℃ | |
Operating Temperature - Wetted Parts | -10 to 70 ℃ | -10 to 50 ℃ | -10 to 70 ℃ |
Maximum Pressure | 100kPa | ||
Housing Material | AC | ADC12 | |
Seal Pipe Material | FEP | ||
Cable Material | PVC | ||
Cable Entry | G1/2 | G3/4 | |
Protection | IP54 | IP68 | IP65 |
Fail Safe | High or Low by Switch | ||
Connected Converter | OX1000 | OX1000 |
Converter
Model | OX1000-0 | OX1000-1 |
---|---|---|
Supply Power | 100/200, 110/220, 120/240V AC 50/60Hz | |
Power Consumption | Approx. 2.5VA Max. | |
Relay Contact | 1 SPDT, 250V 3A AC, 30V 3A DC (Resistive), C-A: Normally Open contact, C-B: Normally Closed contact | |
Detection Time Delay | 0.5 to 10 seconds adjustable | |
Operating Temperature | -10 to 55 ℃ | |
Housing Material | AC | SPC (Carbon steel) |
Cable Entry | 3-G1/2 | 2⌀ 14mm holes |
Protection | IP54 | IP10 |
Fail Safe | High or Low by Switch | |
Seperation Distance | 20m Max. |
Technical drawings of Nohken Model OX Optical Interface Sensor .
Sensors



Converters


Wiring Diagram

For ordering replacement part, please supply full serial number
** If purchasing replacement part, just give us the serial number and we will supply the correct part.**