Electronics Weekly
IF250 sensors have a plastic body with a 25 x 52.4mm footprint, reinforced with metal sleeves at the two mounting holes.
Four proximity switch versions are available to give all output combinations of: normally-open or normally-closed, and ‘pnp’ or ‘npn’.
Then there is a distance measuring version with an IO-Link interface with a resolution better than 0.12mm (high accuracy mode) and 0.12mm repeat accuracy. Linearity error is ±150µm over 0-9mm and ±400µm up to 12mm. A distance-triggered mode can be enabled, which has a pnp or push-pull output. No load consumption is 18mA from 6 to 36Vdc.
Taking the normally-closed npn IF250.P12S-N52.NC1Z.71CV as an example of the switching type, assured sensing distance is ≤81% of nominal, real sensing distance is ±10% and temperature drift is ±10%, plus there is 3 to 20% hysteresis. Consumption is 12mA from 6 – 36Vdc, and it can switch at 1kHz.
Distances are for mild steel , with correction factors of 70% for stainless steel and 50% foe aluminum.
“An important benefit of the flat design is maximised safety reserves because it allows for long-distant safety installation towards the object and is therefore optimally protected – even in critical sensing applications,” according to the company. “Whilst suited to new space-restricted applications, it can also be retro-fitted into existing systems where initially sensors had not been possible.”
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