Omron E2B-M18KS08-M1-B1 Inductive Proximity Sensor
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A. Product Overview
The Omron E2B-M18KS08-M1-B1 belongs to the Omron E2B cylindrical proximity sensor series developed for standard industrial environments. The E2B range includes multiple body sizes, sensing distances, output configurations, connection methods, and shielded or unshielded versions.
The model code specifically identifies the E2B-M18KS08-M1-B1 as:
E2B: Omron E2B proximity sensor series
M18: M18 cylindrical metric threaded brass housing
K: Short body
S: Shielded type
08: 8 mm sensing distance
M1: M12 connector
B: PNP output
1: Normally Open operation
Omron lists the E2B-M18KS08-M1-B1 as the short-body, PNP, Normally Open version of the M18 shielded 8 mm sensor with an M12 connector.
Key Specifications
| Specification | Details |
|---|---|
| Model | E2B-M18KS08-M1-B1 |
| Brand | Omron |
| Sensor Type | Inductive proximity sensor |
| Housing Size | M18 |
| Body | Short body |
| Mounting Type | Shielded |
| Rated Sensing Distance | 8 mm ±10 percent |
| Recommended Setting Distance | 0 to 6.4 mm |
| Output | PNP open collector |
| Operation | Normally Open |
| Connector | M12, 4 pin |
| Power Supply | 10 to 30 VDC |
| Load Current | 200 mA maximum |
| Response Frequency | 500 Hz |
| Indicator | Yellow operation LED |
| Detectable Object | Ferrous metal |
| Protection | IP67 |
| Operating Temperature | minus 25°C to 70°C |
| Housing Material | Nickel plated brass |
| Sensing Surface | PBT |
These ratings are specified by Omron for the M18 shielded double-distance E2B sensor family.
B. Working Principle
The Omron datasheet identifies the E2B as a proximity sensor but does not provide a detailed explanation of the electromagnetic sensing principle. In general, an inductive proximity sensor works by creating a high-frequency electromagnetic field around its sensing face.
When a metallic object enters this field, eddy currents are generated in the metal. These currents change the oscillator conditions inside the sensor. The sensor's internal electronics detect this change and switch the output.
For the E2B-M18KS08-M1-B1, the output is PNP Normally Open. When the target metal approaches within the effective sensing range, the sensor switches its output and the yellow operation indicator responds accordingly. The datasheet specifies PNP open collector output for B-series models and Normally Open operation for B1 models.
The rated sensing distance is 8 mm, while Omron specifies a recommended setting range of 0 to 6.4 mm.
C. Why Is the Omron E2B-M18KS08-M1-B1 Used?
This proximity sensor is used when machinery needs to detect the presence, position, movement, or arrival of a metallic component without mechanical contact.
Because there is no physical contact between the sensor and the target, it can reduce mechanical wear compared with conventional mechanical limit switches.
Typical applications include:
- Detecting metal components on production lines
- Position sensing in industrial machinery
- Conveyor object detection
- Machine part presence detection
- Automated counting of metal components
- Detecting machine positions and end positions
- Assembly line automation
- Packaging machinery
- Material handling equipment
- Factory automation systems
- PLC based automation panels
- Metal component detection in manufacturing equipment
The sensor is primarily designed to detect ferrous metal. Omron notes that the sensing distance decreases when non-ferrous metals are used as the target.
Its IP67 protection, vibration resistance, shock resistance, and operating temperature range from minus 25°C to 70°C make it suitable for many standard industrial environments.
D. Suitable Buyers
The Omron E2B-M18KS08-M1-B1 can be suitable for:
Industrial automation companies:
For machine automation, object detection and position sensing projects.
Machine manufacturers and OEMs:
For integrating non-contact metal detection into new equipment and machinery.
Panel builders:
For automation panels where a PNP proximity sensor is required as a field input.
PLC system integrators:
For installations using compatible PNP digital inputs and 10 to 30 VDC sensor supplies.
Manufacturing plants:
For production lines, assembly systems, conveyors and automated machinery.
Maintenance departments:
For replacement of compatible M18 PNP Normally Open proximity sensors.
Packaging machine manufacturers:
For sensing metal machine components and positions.
Material handling companies:
For conveyor systems and automated handling equipment.
Automotive component manufacturers:
For detecting metallic components during automated production and assembly processes.
Industrial distributors and automation dealers:
For customers requiring Omron E2B series inductive proximity sensors.
Frequently Asked Questions
1. What is the Omron E2B-M18KS08-M1-B1?
The Omron E2B-M18KS08-M1-B1 is an M18 cylindrical inductive proximity sensor with an 8 mm sensing distance, PNP output, Normally Open operation, shielded short body and M12 connector.
2. What is the sensing distance of E2B-M18KS08-M1-B1?
The rated sensing distance is 8 mm ±10 percent. Omron specifies a setting distance of 0 to 6.4 mm for this M18 shielded sensor type.
3. Is E2B-M18KS08-M1-B1 PNP or NPN?
It is a PNP open collector proximity sensor. The B designation in the Omron E2B model code represents PNP output.
4. Is this proximity sensor Normally Open?
Yes. The final B1 designation represents PNP output with Normally Open operation.
5. What voltage is required for E2B-M18KS08-M1-B1?
The sensor operates from a 10 to 30 VDC power supply.
6. Does E2B-M18KS08-M1-B1 use an M12 connector?
Yes. The M1 designation specifies an M12 connector. Omron lists the M18 connector models with an M12 4-pin connection.
7. What type of objects can this sensor detect?
The sensor is designed primarily for detecting ferrous metallic objects. Omron states that sensing distance is reduced for non-ferrous metals.
8. Is E2B-M18KS08-M1-B1 shielded?
Yes. It is a shielded proximity sensor. The S in the model code indicates shielded construction.
9. What is the protection rating of this Omron proximity sensor?
The E2B series is rated IP67 according to IEC 60529.
10. What is the operating temperature range?
The specified operating and storage temperature range is minus 25°C to 70°C, with no icing or condensation.
11. Can this sensor be connected to a PLC?
Yes, it can be used with a PLC or industrial controller that supports a compatible PNP digital input and 10 to 30 VDC sensor supply. System compatibility should always be checked against the PLC input specifications.
12. What is the maximum load current?
The rated control output load current is 200 mA maximum at up to 30 VDC.
13. What is the response frequency?
For the M18 shielded 8 mm E2B configuration, Omron specifies a response frequency of 500 Hz.
14. What material is the sensor body made from?
The case is made from nickel plated brass, while the sensing surface is PBT.
15. Can E2B-M18KS08-M1-B1 be used as a safety sensor?
No. Omron specifically states that the E2B is not designed or rated for ensuring the safety of persons and should not be used as a safety component for that purpose.