Omron E2S-Q21 5M Proximity Sensor
Omron E2S-Q21 5M is a compact square proximity sensor with a 2.5 mm sensing distance and a 0 to 1.9 mm setting distance. It uses a DC 2-wire NO output and a pre-wired 5 m cable. The sensor is specified for ferrous metal, with an iron 15 × 15 × 1 mm standard sensing object, 1 kHz minimum response frequency, 0.8 mA max. current consumption, and a 3 to 50 mA max. control-output load current. An orange operation indicator is provided. Output short-circuit protection and a surge suppressor are included, with IP67 degree of protection in the supplied specification. The E2S-Q21 is part of the Proximity sensor portfolio within the Omron sensor range.
| Brand | Omron |
| Product | Proximity Sensors |
| Model Number | E2S-Q21 5M |
Omron E2S-Q21 5M Proximity Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensor | Compact Square Type |
| Sensing Distance | 2.5 mm |
| Setting Distance | 0 to 1.9 mm |
| Output Configuration | DC 2-Wire |
| Operation Mode | NO |
| Connection | Pre-wired 5 M Cable |
| Differential Travel | 10% max. of sensing distance |
| Detectable Object | Ferrous metal |
| Standard Sensing Object | Iron, 15 × 15 × 1 mm |
| Response Frequency | 1 kHz min. |
| Current Consumption | 0.8 mA max. |
| Control Output Load Current | 3 to 50 mA max. |
| Indicator | Operation indicator (orange) |
| Protection Circuit | Output short-circuit protection, Surge suppressor |
| Ambient Temperature Range | Operating: −25 to 70°C , Storage: −40 to 85°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 90% , Storage: 35% to 95% (with no condensation) |
| Material | Polyarylate resin |
| Degree Of Protection | IP67 |
| Weight | Approx. 10 g |
The Omron E2S-Q21 5M Proximity Sensor is a compact square type with a 2.5 mm sensing distance and a 0 to 1.9 mm setting distance. Its electrical arrangement uses a DC 2-wire output with NO operation and a pre-wired 5 m cable. Ferrous metal is specified as the detectable object, with an iron 15 × 15 × 1 mm standard sensing object. Differential travel is 10% max. of the sensing distance. The sensor provides a response frequency of 1 kHz minimum, current consumption of 0.8 mA max., and control-output load current from 3 to 50 mA max. An orange operation indicator is included.
Output short-circuit protection and a surge suppressor form the listed protection circuit. The operating temperature range is -25 to 70°C, while storage is -40 to 85°C, both without icing or condensation. Operating humidity is 35% to 90%, and storage humidity is 35% to 95% without condensation. The case material is polyarylate resin, and degree of protection is IP67. These values place the model within the E2S compact proximity sensor series while preserving its specific 5 m pre-wired connection and NO switching configuration. For the same Q21 model family with a shorter pre-wired cable option, the supplied E2S-Q21 2M.
