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Standard Digital Fiber Amplifier Unit (Bar Display, Potentiometer Adjustment) E3X-NA
OMRON — E3X-NA Series
The E3X-NA is OMRON's standard digital fiber amplifier, offering quick potentiometer sensitivity adjustment and a 5-segment bar-graph display for light-level/excess-gain confirmation, ideal for simple presence/absence sensing applications. It uses a red LED light source and supports mutual interference prevention when up to 5 E3X-SD/-NA amplifiers are gang-mounted. The E3X-NA amplifier requires a compatible OMRON E32-series fiber optic cable/head, such as the E32-T11R, sold separately, to perform the actual object sensing.
Key Features
- 8-turn sensitivity adjuster with bar-graph excess-gain display (4 green + 1 red segment)
- Light-ON/Dark-ON operation selector switch
- Mutual interference prevention for up to 5 gang-mounted E3X-SD/-NA amplifiers
- Up to 16 amplifiers can be gang-mounted on DIN rail
- Available in pre-wired (2 m cable) or wire-saving connector versions
- Also available as high-speed detection (E3X-NA_F, 20 us operate) and water-resistant IP66 (E3X-NA_V) variants
Detailed Parameters
| Output Type | NPN or PNP open-collector, Light-ON/Dark-ON selectable, max. 50 mA load current |
| Response Time | Operate or reset: 200 microseconds max. (350 microseconds max. with 8+ units gang-mounted) |
| Supply Voltage | 12 to 24 VDC +/-10%, ripple (p-p) 10% max. |
| Sensitivity Adjustment | 8-turn sensitivity adjuster with bar-graph indicator |
| IP Rating | IEC 60529 IP50 (standard, with protective cover); IP66 on water-resistant -V variants |
| Compatible Fiber Types | OMRON E32-series fiber optic sensor heads/cables (through-beam and reflective types) |
| Ambient Temperature | -25 to 55C (1-3 units); derated for larger gang-mounted groups |
| Light Source | Red LED (680 nm) |