E3ML-M8E4-G Product Information

Overview

The E3ML-M8E4-G is a color registration mark sensor from OMRON. It is designed for high-speed detection applications, particularly in printing and packaging equipment. This sensor offers a 20-microsecond response time and 99-step sensitivity adjustment, ensuring accurate detection of minute color differences.

Sensors

Detection Method

• Diffuse Reflective

Sensing Distance

• 8 mm; 6 to 10 mm (0.31 in; 0.24 to 0.39 in)

Part Number

• E3ML-M8E4-G (NPN Output)

Fiber-Optic Cables (if applicable)

• Method of Detection: Through-beam, Diffuse Reflective
• Sensing Distance:10 mm; 0 to 10 mm (0.39 in; 0 to 0.39 in)0.5 mm; 0.2 to 2 mm (0.02 in; 0.008 to 0.08 in)1.2 mm; 0.5 to 4 mm (0.05 in; 0.02 to 0.16 in)
• Description: Straight cable, bendable probe
• Cable Length: 50 cm (1.64 ft)
• Required Sensor Part Numbers:E32-TB50E32-DB8E32-DB50

Accessories

• Controller: S3M-L10-US-AC120Description: Provides power source for lamp and switch circuit; relay and NPN transistor outputs; ON-delay, OFF-delay, and one-shot timing functions; ON/OFF and AND gate logic functions. Includes mounting socket.
• Color Filters:Yellow (E3ML-ZF1): Improves detection of green marks on blue backgrounds.Orange (E3ML-ZF2): Improves detection of red marks on blue backgrounds.Red (E3ML-ZF3): Improves detection of red marks on green backgrounds.
• Mounting Track: DIN rail, available in 50 cm (1.64 ft) and 1 m (3.28 ft) lengths.
• End Plate: PFP-M

Replacement Parts

• Incandescent Light Bulb: E3ML-ZLB (filament perpendicular to bulb axis), E3ML-ZLA (filament parallel to bulb axis, supplied with all E3ML sensors)
• Desiccator Cell: E3ML-ZK (prevents moisture from collecting inside the sensor)
• Lens: E3ML-ZHM8 (for E3ML-M8□4-G sensors, 8 mm), E3ML-ZHS2 (for E3ML-S2□4-G sensors, 20 mm)
• Socket: For S3M-L10-US-AC120 controller (supplied with the controller)

Sensor Specifications

• Supply Voltage: 10 to 30VDC
• Lamp Section Voltage: 4.5 VAC
• Power Consumption:Circuit Section: 2 WLamp Section: 3.5 VA
• Detectable Mark Size:1.5 mm × 4 mm (0.06 x 0.16 in)0.5 mm × 6 mm (0.02 x 0.24 in)0.3 mm × 1.6 mm (0.01 x 0.06 in)0.3 mm × 3.2 mm (0.01 x 0.13 in)
• Detectable Object Type: Marks on different backgrounds, opaque materials
• Operation Mode: Light-ON/Dark-ON, switch-selectable
• Adjustable Sensitivity: 99 steps
• Output: NPN-SPST open collector with pull-up
• Max. Load: 80 mA
• Max. On-State Voltage Drop: 1 VDC
• Response Time:On: 20 μs max.Off: 20 μs max.
• Repeat Response Frequency: 10 kHz
• Output Short-Circuit Protection: Provided
• DC Power Supply Reverse Polarity Protection: Provided
• Indicators: Light Incident (red LED)
• Fiber Cable Style: Straight
• Fiber Cable Length: 50 cm (1.97 in)
• Sensing Head: Probe with 1.5 mm dia. head (0.06 in) × 80 mm (3.15 in) stainless steel tube
• Max. Fiber Bending Radius: 10 mm (0.4 in)
• Materials:Lens: PlasticCase: Metal, diecast zincCable Sheath: Plastic
• Mounting: Side surface with two M5 threaded holes; front surface with four M5 threaded holes
• Connections: Prewired 6-conductor cable, 4 m (13.12 ft) length
• Weight: 600 g (1.32 lbs) with electrical cable
• UL Enclosure Ratings: NEMA 1, 4, 4X, 12
• IEC 144: IP67
• Ambient Operating Temperature:Sensor: 10° to 55°C (14° to 131°F)Fiber Cable: -25° to 100°C (-13° to 212°F)
• Storage Temperature:Sensor: -25° to 70°C (-13° to 158°F)Fiber Cable: -25° to 100°C (-13° to 212°F)

Controller Specifications (S3M-L10-US-AC120)

• Supply Voltage: 120VAC, 50/60 Hz
• Power Consumption: 13 VA max.
• On-board DC Power Supply:Voltage: 12VDCCurrent: 100 mA max.
• Short-Circuit Protection: Provided
• Lamp Voltage: 4.5VAC
• Lamp Current: 0.78 A max.
• Short-Circuit Protection: Not provided
• Number of Inputs: Three (input, gate, and latch reset)
• Input Signal Voltage Level:High: 4 to 12VDC (positive polarity)Low: 0 to 1VDC
• Minimum Required Input Time:1 ms (when using 0.1 to 1-second time delay)2 ms (when using 1 to 10-second time delay)
• Input Impedance: Approx. 4.7 kΩ
• Logic Functions: ON/OFF, AND (gate input), Latch
• Control Output:Type: SPDT relay with G2R-112S-V-US-DC12 (included)Max. Load: 3A, 220VAC (p.f.=1)Min. Load: 10mA, 5VDC
• DC Solid-State Output:Type: NPN with pull-up (4.7 kΩ output impedance)Max. Load: 80 mA
• Response Time:Contact Output:On: 15 ms max.Off: 15 ms max.DC Solid-State Output:On: 20 μs max.Off: 20 μs max.
• Timing Functions:Type: Normal, ON-delay, OFF-delay, one-shot or latch (switch-selectable)Range: 0.1 to 1 second or 1 to 10 seconds (switch-selectable)
• Lamp Burnout Alarm:Type: NPN open collector with pull-up (4.7 kΩ output impedance)Max. Load: 50 mA
• Indicators: Power On (red); Output Operation (red)
• Case Materials: Plastic
• Mounting: Requires 14PFA socket (included)
• Weight: 650 g (1.43 lbs) including socket
• UL Enclosure Ratings: NEMA 1, 4, 4X, 12
• IEC 144: IP22
• UL Approvals: Recognized, File