Omron E2S-Q21 1M Proximity Sensor
Omron E2S-Q21 1M is a compact square, unshielded 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, a pre-wired 1 m cable, and a 12 to 24 VDC power supply. Ferrous metal is the specified detectable object, with an iron 15 × 15 × 1 mm standard sensing object. Response frequency is 1 kHz minimum, leakage current is 0.8 mA max., control-output load current is 3 to 50 mA max., and differential travel is 10% max. of sensing distance. An orange operation indicator and IP67 protection are specified. The E2S-Q21 belongs to the Proximity sensor range from Omron sensing products.
| Brand | Omron |
| Product | Proximity Sensors |
| Model Number | E2S-Q21 1M |
Omron E2S-Q21 1M 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 1 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 1M Proximity Sensor is a compact square, unshielded model with a 2.5 mm sensing distance and a 0 to 1.9 mm setting distance. It uses a DC 2-wire output with NO operation and a pre-wired 1 m cable, supplied from 12 to 24 VDC. Ferrous metal is the specified detectable object, and the standard sensing object is iron measuring 15 × 15 × 1 mm. Response frequency is 1 kHz minimum, leakage current is 0.8 mA max., and control-output load current is 3 to 50 mA max. Differential travel is 10% max. of sensing distance. An orange operation indicator is specified together with output short-circuit protection and a surge suppressor.
The operating temperature range is -25 to 70°C and storage extends from -40 to 85°C, both without icing or condensation. Operating humidity is 35% to 90%, while storage humidity is 35% to 95% without condensation. Polyarylate resin is listed for the case material, and the degree of protection is IP67. These specifications identify the Q21 1M as the 1 m cable version of the E2S Q21 DC 2-wire NO configuration. For the same compact square model with the same 2.5 mm sensing distance, DC 2-wire NO output, and electrical characteristics but a longer pre-wired cable, see E2S-Q21 5M.
