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Keyence FR-SA1

Short range amplifier unit with separate display Cable Type Main Unit.

MPN: FR-SA1
Category: Radar Level Sensor

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Keyence FR-SA1?

Short range amplifier unit with separate display Cable Type Main Unit. FR-SA1. Series: Radar Level Sensor. Series code: FR series

Specifications

Model Name	Short range amplifier unit with separate display Cable Type Main Unit
Model Code	FR-SA1
Series Title	Radar Level Sensor
Series Code	FR series
Data Sheet URL	https://www.keyence.com/download/download/confirmation/?dlSeriesId=WS_157159&dlModelId=PM_281SA1&dlSiteId=1&dlLanguageId=en-US&dlLangType=en-US
CAD URL	https://www.keyence.com/products/process/level/fr/downloads/?mode=cd&modelId=PM_281SA1
Manuals URL	https://www.keyence.com/products/process/level/fr/downloads/?mode=ma&modelId=PM_281SA1
Model	FR-SA1
Type	Short Separated Amplifier Unit Cable Main Unit
Response time	0.4 s, 1.5 s, 4 s (default value), 10 s
Output - No. of control outputs	Maximum 5
Output - Control output/auxiliary output	NPN/PNP open collector (switchable) up to 30 VDC or less, max 50 mA for eachTotal 750 mA or less for the entire amplifier when adding five or more expansion unitsResidual voltage 1.4 V or less (50 mA or less)N.O./N.C. switchableIO5 is switchable to external input
Output - Analog output	0–20 mA/4-20 mAMaximum load resistance 260 Ω(Response time: 0.2 s (90% response) after control output is confirmed)
External input	Short circuit current: 1.5 mA or less Input time: 500 ms or more
External communication	—
Analog output accuracy - Resolution	1 mm 0.04"*1
Analog output accuracy - Zero accuracy	±0.1 mA (zero point = 4 mA)*1
Analog output accuracy - Full-scale accuracy	±0.2 mA (full-scale = 20 mA)*1
Expansion	Connected to FR-SA1 (with FR-S01 connected): up to 8 units (9 units total including main unit)2Connected to FR-SA1 (with FR-SH01(C) connected): up to 12 units (13 units total including main unit)2
Power supply - Power voltage	24 VDC +25%/−20%34 including ripple, Class2 or LPS
Power supply - Power consumption	When FR-S01 is connected: up to 1940 mW or less (72 mA or less at 24 V)When FR-SH01(C) is connected: up to 1560 mW or less (56 mA or less at 24 V)(Excluding Load Current)
Environmental resistance - Ambient temperature	–20°C to +55°C -4°F to +131°F (no freezing)*5
Environmental resistance - Relative humidity	Up to 85% RH (no condensation)
Protection circuit	Protection against reverse power connection, power supply surges, output overcurrent protection, and output surges
Material	PC
Weight	Approx. 100 g 3.53 oz

FR-SA1: frequently asked questions

When can FR-SA1 be shipped?

FR-SA1 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 FR-SA1 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 FR-SA1 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 FR-SA1, subject to availability and destination.