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Brand: Banner Engineering
Banner S18-2 Series 18 mm Barrel Photoelectric Sensor
Description
The Banner S18-2 series is a family of plastic 18 mm barrel photoelectric sensors for cost-sensitive, high-volume installations. The manual (p/n 170670 Rev. L) lists opposed-mode emitters and receivers, retroreflective and polarized retroreflective sensors, diffuse sensors and fixed-field sensors with PNP or NPN complementary outputs, so one housing style covers most presence-detection tasks on a machine.
One 18 mm barrel housing for several sensing modes
Each sensor uses a bright visible red emitter that makes alignment easy. Three LEDs show power and stability (green) and output state (amber). Banner quotes stable detection in the presence of fluorescent lighting for non through-beam applications, and a wide operating range of -40 to +70 °C. Models with a single-turn potentiometer allow sensitivity adjustment, and the beam-inhibit emitter variant can be switched off by tying the black wire to 10 to 30 V DC.
Sensing ranges listed in the manual are 25 m for opposed mode, 6 m for polarized retroreflective and 7.5 m for retroreflective versions with a BRT-84 reflector, 300 mm or 750 mm for diffuse versions, and fixed-field cut-offs from 30 mm to 200 mm. Connections are a 2 m or 9 m cable, a 150 mm pigtail with an M8 or M12 connector, or a 4-pin M12 quick-disconnect. For a safety-rated sensor see the Banner devices under sensors and transmitters, and note that the S18-2 must not be used for personnel protection. A related compact sensor is the Banner Q4X.
Technical specifications
| Parameter | Specification |
|---|---|
| Series | Banner S18-2 plastic 18 mm barrel photoelectric sensors (manual p/n 170670 Rev. L, 05-Jun-26) |
| Supply voltage | 10 to 30 V DC at ambient up to 55 °C; 10 to 24 V DC above 55 °C |
| Supply current (excl. load) | Diffuse 16 mA; emitter 17 mA; receiver 8 mA; retroreflective and polarized retroreflective 16 mA; fixed field 22 mA |
| Output configuration | Complementary PNP or NPN, selected by model number |
| Output rating | Up to 100 mA total through both outputs at 55 °C or below; 50 mA total above 55 °C |
| Output response time | Opposed 1.5 ms on, 1 ms off; retro, polarized retro and diffuse 1.5 ms on, 0.75 ms off; fixed field 2 ms on and off |
| Repeatability | Opposed 170 µs; retro, polarized retro and diffuse 100 µs; fixed field 200 µs |
| Sensing modes and range | Opposed 25 m; polarized retro 6 m and retro 7.5 m with BRT-84; diffuse 300 or 750 mm; fixed field 30 to 200 mm |
| Emitter | Visible red LED |
| Indicators | Three LEDs: 1 green (power and stability), 2 amber (output) |
| Protection | Reverse polarity, transient voltages, false pulse at power-up and continuous output short circuit |
| Construction | ABS housing, PMMA front window, clear ABS indicator windows, 30 % glass-filled PBT mounting nuts |
| Environmental rating | IP67; UL Type 1 |
| Operating temperature | -40 to +70 °C; 95 % relative humidity at +50 °C, non-condensing |
| Connections | 2 m or 9 m cable; 150 mm cable with 4-pin M8 or M12 connector; 4-pin M12 quick-disconnect |
Selecting a model
The model number encodes the output and sensing mode: for example S18-2VPDL-Q8 is a PNP diffuse sensor with a 4-pin M12 connector, and S18-2VNFF50-2M is an NPN fixed-field sensor with a 50 mm cut-off and a 2 m cable. Please give the sensing mode, range, output polarity and connector style when requesting a quotation, so the exact part number can be confirmed. Cordsets, apertures, brackets and BRT-84 reflectors are listed as accessories in the manual.
Documents and quotation
The attached file is the Banner S18-2 product manual, which lists every model and the full specifications. Availability is confirmed per order, and some older S18-2 models are listed by Banner as discontinued, so the exact part number should be checked before ordering.
Datasheets & Documents
- Datasheet Banner S18-2 product manual (p/n 170670 Rev. L) Download
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About brand
Banner Engineering, founded in 1966 in Minneapolis, USA, makes industrial sensors, indicator lights and machine safety products that show up on packaging lines and conveyors everywhere. Seven Star LLC lists Banner devices including the Q4X rugged stainless steel laser distance sensor and the K50 Pro Beacon IO-Link multicolor RGB indicator, and supplies Banner sensors and indicators to plants and machine builders in Oman.
Banner Q4X and K50 Pro
Banner offers the Q4X in four range versions, all starting at 25 mm: Q4X100 to 100 mm, Q4X300 to 300 mm, Q4X500 to 500 mm and Q4X600 to 600 mm. The series is available with discrete, analog and IO-Link outputs and has a display on the sensor. The K50 Pro Beacon is a status indicator whose color and behavior are set from the controller over IO-Link.
Ordering Banner products: what we need
Send the complete Banner model number from the device label, because range, output type and connector are all coded into it. For the Q4X, state the measuring distance, the output your PLC input needs and the connector or cable style. For indicators, give the housing size, control method and voltage. Mating cordsets and brackets can be included for GCC orders.
Related products
Frequently Asked Questions
What sensing modes does the S18-2 series cover?
Opposed-mode emitters and receivers, retroreflective, polarized retroreflective, diffuse and fixed-field versions in the same plastic 18 mm barrel housing.
What is the supply voltage?
10 to 30 V DC at ambient temperatures up to 55 degrees C, and 10 to 24 V DC above 55 degrees C.
What outputs are available?
Complementary PNP or NPN outputs, selected by model number, rated 100 mA total at 55 degrees C or below.
What is the protection rating?
IP67, with an operating temperature range of -40 to +70 degrees C.
Can it be used for personnel protection?
No. Banner states that the S18-2 has no self-checking redundant circuitry and must not be used for personnel safety applications.
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