Part of the Omron Limit & Basic Switches series — see the full model table, lifecycle status and replacement parts.
Omron EE-SPX613 — Tube Mount Liquid Level Sensor, NPN
SKU: EE-SPX613USD 20.00
EE-series pipe-mount photomicrosensor with built-in amplifier for liquid level in 6-13 mm transparent tubes. NPN, 12-24 VDC.
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Product Overview
The Omron EE-SPX613 is a pipe-mount photomicrosensor with a built-in amplifier. manufactured by Omron Corporation. Hengyixin Automation ships this sensor from our Xiamen warehouse with a 30-day DOA return window and a datasheet PDF included in the box.
It clamps onto a transparent tube and detects the level of liquid inside by sensing the refractive-index difference between air and water — no contact with the fluid itself. It is sized for tubes with an outer diameter of 6 to 13 mm and a wall thickness of about 1 mm.
The EE-SPX613 ships from Xiamen with full datasheet documentation. Because the tube wall is the only barrier between the head and the fluid, none of the EE-SPX613 SKUs are pressure-rated — verify the tube rating and clamp pressure before fitting into a pressurized line.
Key Features
- Response time about 1 ms
- Clamps onto transparent tubes 6 to 13 mm OD, ~1 mm wall
- 12 to 24 VDC ±10% supply, 30 mA average / 80 mA peak
- NPN open-collector output, DC 5 to 24 V / 100 mA, residual 0.8 V max
- SKU: EE-SPX613
- Series: EE-series photomicrosensor with built-in amplifier
Best-Fit Applications
- Peristaltic-pump feed line where the spare tube length is short
- Skid-mount pilot plant sense point on a side-arm sight tube
- Bench-top medical analyzer reagent level in a 6 mm FEP feed line
Buying Checklist
- Pick the EE-SPX613 5M for a longer 5 m cable when the panel is farther from the sense point.
- Pick the EE-SPX613 when the level sense point is on a transparent tube with 6-13 mm OD and you want non-contact detection.
- Pick a conductive-probe level controller (61F series) when the tube is opaque metal or plastic — the EE-SPX613 needs a clear tube to see through.
Technical Specifications
| Series | EE-series photomicrosensor with built-in amplifier |
|---|---|
| Model | EE-SPX613 |
| Mount | Pipe-mount, fits 6 to 13 mm OD transparent tube, ~1 mm wall |
| Material | FEP (fluororesin) preferred, or any equivalent-transparent material |
| Sensing Method | Refractive-index optical (air / liquid difference) |
| Output | NPN open-collector, DC 5 to 24 V / 100 mA max |
| Mode Switch | Light-ON (no liquid) / Dark-ON (with liquid) |
| Sensitivity | Selectable to suit tube size and wall transparency |
| Supply | 12 to 24 VDC ±10%, 30 mA average / 80 mA peak |
| Source | GaAs IR 940 nm LED; red 700 nm operation indicator |
| Response Time | About 1 ms |
| Cable | Pre-wired 1 m oil-resistant cable (EE-SPX613 5M for 5 m) |
FAQ for EE-SPX613
Does the EE-SPX613 contact the liquid?
No. The sensor clamps onto the outside of the tube and detects the liquid by the refractive-index change inside the tube. Nothing touches the fluid, which is why the SPX fits cleanroom and medical analyzer builds.
What tube sizes does the EE-SPX613 fit?
Any tube with an outer diameter between 6 and 13 mm and a wall thickness around 1 mm. FEP (fluororesin) is the preferred material; silicone and PVC also work but may need the sensitivity selector set to LOW for a clean trigger.
Can the EE-SPX613 sense through an opaque tube?
No. The optical method requires a transparent tube. For metal or opaque plastic tanks, use a conductive-probe controller (61F-LS series) or a float switch instead.
How do I read the indicator LED?
The red LED on the unit lights when the optical path detects a clear (no-liquid) condition. With Light-ON selected, the output also turns ON at the same time — useful for diagnosing the trigger during commissioning.
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