Omron E3X-HD41 — Smart Fiber Amplifier, PNP, 1-Output
SKU: E3X-HD41USD 51.00
Smart fiber-optic amplifier with red 4-element LED, PNP open-collector output, pre-wired 2 m PVC cable. Compatible with all E32-series fiber-optic cables (through-beam, diffuse, retro-reflective). Smart-tuning teach function, twin 7-segment display.
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Product Overview
The E3X-HD41 is the PNP-output variant of Omron's E3X-HD smart fiber-optic amplifier family — a digital amplifier with a twin 7-segment display that simultaneously shows the incident light level (red digits) and the threshold setting (green digits), so an installer can see at a glance whether the sensor has enough margin between 'detected' and 'clear' states. The amplifier accepts any E32-series fiber-optic cable on the front face — through-beam (E32-T), diffuse (E32-D), or retro-reflective (E32-R) — and the same amplifier handles all three sensing modes. The PNP open-collector output sources 24 VDC into the load (sink current max 100 mA) with a typical 1 ms response time suitable for most conveyor and parts-detection applications.
Decoding the E3X-HD41 model number
The E3X-HD41 code: E3X = amplifier-only fiber-optic amplifier (vs E3X-NA which is connectorized); H = High functionality (vs H = standard functionality tier in the E3X family); D = Digital twin display (vs SD or DA single-display older models); 4 = PNP output (1 = NPN, 4 = PNP, 6 = NPN connector, 8 = PNP connector); 1 = 1 output (vs the E3X-MZV@ 2-channel 2-output variant). The pre-wired 2 m version is the most commonly ordered SKU; the E3X-HD8 is the M8 connector version, the E3X-HD6 is the wire-saving connector version, and E3X-HD44 is the M12 connector with double display.
Smart tuning with one button
The E3X-HD41's smart-tuning feature uses one SET button to teach the threshold in two modes: (1) full auto tuning — point the fiber at the target, press SET, point at the background, press SET; the amplifier sets the threshold at the midpoint between target and background incident levels with a 2:1 margin to either edge; (2) position teaching — present a target with the desired boundary condition, press SET for 4 seconds, the amplifier learns the threshold from the maximum incident level seen during the teach. Smart tuning eliminates the potentiometer-adjustment errors that plague older E3X-NA amplifiers.
Twin 7-segment display for diagnostics
The dual red + green 7-segment display on the front face is the key diagnostic feature. The red display shows the incident light level (0-4095 count), updated in real time, so an installer can see the dynamic range between 'target detected' and 'target absent'. The green display shows the threshold setting (also 0-4095). When the red display is above the green display, the output is ON; when below, OFF. The 4-digit resolution lets you set the threshold to within ~0.1 % of full scale, 4× finer than the older E3X-NA's analog bar graph display.
Key Features
- Smart fiber amplifier with PNP open-collector output
- Red 4-element LED light source — same wavelength for thru-beam and diffuse modes
- Pre-wired 2 m PVC 4-conductor cable
- Compatible with all E32-series fiber-optic cables
- Smart tuning with one-button teach: full-auto or position teach modes
- Twin 7-segment display: red digits show incident light level, green digits show threshold
- Up to 4 units can be daisy-chained with auto-emission-frequency offset to prevent mutual interference
- Power supply 12 to 24 VDC ±10 %, ripple 10 % p-p max
- SKU: E3X-HD41
- Series: E3X-HD Smart Fiber Amplifier
- Voltage: 12 TO 24 VDC
- I/O: 1 I/O
Best-Fit Applications
- Label detection on a labelling machine — E3X-HD41 with E32-T14L thru-beam fiber pair detects the gap between labels on a.
- Small-part detection on a precision assembly line — E3X-HD41 with E32-D33 diffuse fiber detects the presence of 2 mm parts.
- Edge detection on a wafer or PCB — E3X-HD41 with E32-T22LR right-angle thru-beam fiber aligns the beam across the wafer.
- Bottle-fill level detection through a transparent bottle wall — E3X-HD41 with E32-L25A11 retroreflective fiber pair detects the level of liquid.
Buying Checklist
- Pick E3X-HD41 for PNP pre-wired 2 m fiber amplifier with twin 7-segment display
- Pick E3X-HD11 if you need NPN open-collector output instead of PNP
- Pick E3X-HD8 if you prefer an M8 connector instead of pre-wired cable
- Pick E3X-HD44 if you need an M12 connector for high-vibration installations
- Pick E3X-ECT communication unit to interface up to 16 amplifiers on EtherCAT — for Sysmac NJ/NX-based systems
- Pick the E32-T@ thru-beam fiber for 5-100 mm through-beam detection of small parts
Technical Specifications
| Model | E3X-HD41 2M |
|---|---|
| Series | E3X-HD Smart Fiber Amplifier |
| Type | Fiber-optic amplifier for E32-series cables, PNP output |
| Connection Method | Pre-wired 2 m PVC cable (4-conductor) |
| Output | 1 x PNP open-collector (24 VDC, 100 mA max load) |
| Light Source | Red 4-element LED, 625 nm |
| Sensing Mode | Through-beam / Diffuse / Retro-reflective (selected by E32 cable choice) |
| Power Supply Voltage | 12 to 24 VDC ±10 %, ripple 10 % p-p max |
| Display Type | Twin 7-segment (red + green) |
| Display Resolution | 0-4095 count, 4-digit |
| Operating Temperature | -25 to +55 °C (no icing) |
| Storage Temperature | -30 to +70 °C |
| Mounting | 35 mm DIN-rail via E39-L143 adapter (2 units per rail segment) |
| Communication Adapter (optional) | E3X-ECT (EtherCAT, up to 16 amplifiers), E3X-CRT (CompoNet), E3X-SRT (Slave Terminal CompoNet) |
| Compatible Connector Sibling | E3X-HD8 (M8 connector PNP), E3X-HD44 (M12 connector PNP) |
Resources & Downloads
FAQ for E3X-HD41
What's the difference between E3X-HD41 and E3X-NA41?
E3X-HD41 is the newer 'high-functionality' digital-amplifier with twin 7-segment display and smart tuning; E3X-NA41 is the older 'advanced' amplifier with single-display and trimmer adjustment. The HD41 has finer threshold resolution (12-bit / 4096 counts vs 8-bit / 256 counts for the NA41), faster smart-teach (one button vs multi-step procedure), and the dual-display showing both incident level and threshold simultaneously. The NA41 is still available for legacy installations where replacement must match exactly.
Can the E3X-HD41 detect a 2 mm small object?
Yes — the E3X-HD41 with an appropriate E32 fiber can detect objects as small as 0.5 mm diameter under controlled conditions. The minimum detectable object size depends on the fiber choice: E32-T11L (M3 thread thru-beam with 1 mm dia ferrule) detects down to 0.3 mm with the high-sensitivity mode; E32-T22 (M4 thread thru-beam with 1.2 mm ferrule) detects down to 0.5 mm; E32-T14L (large M6 thru-beam) detects down to 2 mm at standard sensitivity.
What fiber-optic cable do I pair with the E3X-HD41?
Any of the 100+ E32-series fiber-optic cables work with the E3X-HD41. The choice depends on the application: through-beam pair (E32-T@) for opaque objects — pick the E32-T11L 2M for general use, E32-T22L for longer range (up to 4 m), E32-T14L for 5 mm minimum object detection, E32-T9L for small parts (down to 0.3 mm object), or specialty fibers like E32-T@F (focused beam for 0.5 mm spot) or E32-T@H (heat-resistant to 200 °C).
How do I teach the threshold on the E3X-HD41?
The E3X-HD41 has a one-button smart-tuning teach that takes ~5 seconds. Method 1 (full auto tuning): (1) Point the fiber at the target condition (target present, no background); (2) Press and release the SET button — the red display shows the saved target value with a '00' to 'F' indicator; (3) Point the fiber at the background (no target); (4) Press and release SET again — the amplifier calculates the midpoint threshold with ~2:1 margin to either side.
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