N7R31A Inductive NAMUR ring sensor I7R2015-NL/2M/1G/1D
Brand: IFM Electronic
Code: N7R31A
- For applications in hazardous areas
- Reliable detection of objects with very small diameters
- Very short response time
- Wide operating temperature range
Product characteristics
| Electrical design | NAMUR |
|---|---|
| Output function | normally closed |
| Housing | circular |
| Dimensions [mm] | 32 x 25 x 20 |
Application
| Operating principle | bistable |
|---|
Electrical data
| Connection to switching amplifiers | yes |
|---|---|
| Switching amplifiers | connection to certified intrinsically safe circuits with the max. values: U = 15 V / I = 50 mA / P = 120 mW |
| Nominal voltage DC [V] | 8.2; (1kΩ) |
| Current consumption [mA] | value for direction of movement A : < 1,2; value for direction of movement B : > 2,1 |
| Protection class | III |
Outputs
| Electrical design | NAMUR |
|---|---|
| Output function | normally closed |
Detection zone
| Measuring ball (diameter) [mm] | 6 |
|---|---|
| Max. travel speed [m/s] | 10 |
Accuracy / deviations
| Hysteresis [mm] | 2 |
|---|
Operating conditions
| Ambient temperature [°C] | -40...100 | |
|---|---|---|
| Note on ambient temperature |
| |
| Protection | IP 67 |
Tests / approvals
| Approval | BVS 08 ATEX E026; IECEx BVS 09.0016 | ||
|---|---|---|---|
| ATEX marking | | ||
| | |||
| EMC |
| ||
| MTTF [years] | 1261 |
Safety classification
| Max. internal capacitance [nF] | 90 |
|---|---|
| Max. internal inductance [µH] | 65 |
Mechanical data
| Weight [g] | 67.5 |
|---|---|
| Housing | circular |
| Dimensions [mm] | 32 x 25 x 20 |
| Inside diameter [mm] | 15 |
| Materials | PA 12-GF30 |
Remarks
| Pack quantity | 1 pcs. |
|---|
Electrical connection
| Connection | Cable: 2 m; 2 x 0.14 mm², PTFE |
|---|
ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — EN-GB — N7R31A — 25.11.2020 — 
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