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Keyence AS-421B

Amplifier Unit. . Series: Inductive Gauging Sensor. Series code: AS series

MPN: AS-421B
Category: Inductive Gauging Sensor

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Keyence AS-421B?

Amplifier Unit. AS-421B. Series: Inductive Gauging Sensor. Series code: AS series

Specifications

Model Name	Amplifier Unit
Model Code	AS-421B
Series Title	Inductive Gauging Sensor
Series Code	AS series
Data Sheet URL	https://www.keyence.com/download/download/confirmation/?dlSeriesId=WS_SR_as&dlModelId=PM_017421B&dlSiteId=1&dlLanguageId=en-US&dlLangType=en-US
CAD URL	https://www.keyence.com/products/sensor/proximity/as/downloads/?mode=cd&modelId=PM_017421B
Manuals URL	https://www.keyence.com/products/sensor/proximity/as/downloads/?mode=ma&modelId=PM_017421B
Model	AS-421B
Type	Amplifier
Sensor head	AH-305
Shape	―
Measuring range	0 to 1.0 mm 0.04"
Analog output voltage - Output voltage	0.2 to 0.6V
Analog output voltage - Straight line range	0.2 to 0.6mm 0.008" to 0.024"
Analog output voltage - Impedance	100 Ω
Analog output voltage - Resolution	0.2% of F.S.
Analog output voltage - Linearity	±2.0% of F.S.
Analog output voltage - Response	3.3 kHz (-3 dB)
Temperaturefluctuation	0.06% of F.S./°C*1
Temperature characteristics	0.1% of F.S./°C*1
Rating - Power voltage	110/120/220/240 VAC ±10 %, 50/60 Hz
Rating - Power consumption	6VA
Environmentalresistance - Enclosure rating	―
Environmentalresistance - Operating ambient temperature	-10 to +60°C 14 to 140°F
Environmentalresistance	0 to +50°C 32 to 122°F
Environmental resistance	35 to 85 % RH (No condensation)
Weight	―

AS-421B: frequently asked questions

When can AS-421B be shipped?

AS-421B is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up AS-421B in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for AS-421B and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for AS-421B, subject to availability and destination.