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Alicat Scientific

FP-25 Flow Calibrator

Rapidly calibrates every low-volume particulate air sampler, all-weather accuracy & durability ensure consistent readings in any weather

Have questions? We're here to help!
Have questions? We're here to help!

Audit flow rate, pressure and temperature with laboratory-grade accuracy in an instrument that won’t break down. Alicat’s FP-25 (with Bluetooth) flow standards calibrate every low-volume particulate air sampler on your deck. All-weather accuracy and durability ensure consistent readings, no matter the wind, temperature or humidity.

Be confident in your flow measurements, no matter the weather. Responsive temp probes and humidity sensors keep the weather in check as you monitor flow, pressure and temperature in real time. Or, collect a robust average of 5000 readings in 5 seconds. Climb ladders less with Bluetooth connectivity . Connect quickly to any low-volume sampler with the industry’s only pass-through PM10/PM2.5 inlet connection. Or use the included barb fitting with face seal for no-hassle fitting changes. Rapid temperature equilibration lets you get started right away.  Keep calibrating after a drop from the roof, or finish your audit if it starts to rain. This compact calibrator fits in your pocket but is built tough with an all-aluminum body, weather-resistant connections and the industry’s only lifetime warranty.

Included with the FP-25 flow calibrator:
• External temperature probe with 6 ft of cable and locking M8 connector
• Micro-USB to USB cable for charging and communications
• USB wall adapter for charging
• 1/4″ NPT barb adapter (1/4″ barb) with face seal
• 1/4″ NPT fittings with face seals for pass-through connection to 1-1/4″ OD air sampler downtubes
• NIST-traceable calibration certificate
• Operating manual
• Custom-fit hard case

• All-weather accuracy
• Fast and easy operation
• Internal Li-ion rechargeable battery
• Battery charging and RS-232 communications vis micro-USB jack
• Durable field design with weatherproof construction
• Calibrator unaffected by drops, humidity, vibration, or changes in orientation during use
• Limited lifetime warranty, kept active with each annual recalibration

Charging Temperature0ºC - 45ºC
Humidity Range (Non-Condensing)0% - 100% RH, with live humidity sensing
Maximum Internal Pressure (Static)45 PSIG
Maximum Allowable Instantaneous Differential Pressure Across Devide (Inlet to Outlet)15 PSID
Proof Pressure175 PSIG
Mounting Altitude SensitivityNone
Wetted Materials6061 Aluminum, 302 Stainless Steel, Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Gold, Silicon, Glass
Monochrome LCDSimultaneously displays Volumetric Flow, Standard Flow, Barometric Pressure, and Ambient Temperature
Digital Output SignalSerial via micro USB-B connection
Electrical Connectionmicro USB-B
Supply Voltage+ 5 VDC (microUSB-B)
Wireless CommunicationFP-25BT only: Bluetooth antenna (requires Alicat Connect & Android mobile device)
Weight1.4 lb. (6.7 lb. with case and accessories)
Dimensions7.6 in x 1.4 in x 2.5 in (12.5 in x 14.5 in x 5.4 in with hard case)
Protective CaseWaterproof hard case
FittingsDirect Mode adapters for 1.25” OD sampler downtubes + 1/4” NPT barb fitting
Tubing1/4” ID X 7/16” OD Silicone Tubing
WarrantyLifetime
Instrument Flow Range0.125 to 25.000 lpm / slpm
Flow Accuracy and Repeatability± 1.0% of reading (at calibration conditions after tare)
Operating Range / Turnown Ratio0.5% to 100% Full Scale / 200:1 Turndown
Pressure Drop with Fittings0.10 PSI @ 16.7 lpm
0.16 PSI @ 25 lpm
Barometric Pressure Accuracy± 1 mmHg across 475 - 825 mmHg
Temperature Probe Accuracy± 0.2ºC
Relative Humidity Accuracy± 3.5% RH
Typical Flow Response Time10 ms
Warm-Up Time< 1 s
Battery Life12 hrs (without Bluetooth)
Recharge Time3.5 hrs with 2A USB supply and device turned off
Mass Reference Conditions (STP)25ºC and 14.696 PSIA (adjustable)
Operating / Storage Temperature-30ºC - 60ºC

Use the FP-25 to audit and calibrate flow, pressure and temperature readings for the samplers and analyzers below.
• PM10 and PM2.5 FRM samplers (16.7 lpm)–Mesa Labs PQ series, Met One E-FRM, Thermo Scientific Partisol 2000/2025(i) and Dichots, Tisch TE-Wilbur
• PM10 and PM2.5 FEM analyzers (16.7 lpm)–Environnement S.A. MP101M, Met One BAM-1020/1022 and E-BAM, Thermo Scientific BAM 5014i, SHARP 5030i and TEOM 1400(a/ab)/ 1405 and Dichots, Teledyne T640
• IMPROVE network PM samplers (22.8 lpm)
• Low-flow PM samplers (1 - 5 lpm)–Ecotech MircoVol and Protinus, Grimm EDM, Met One E-Sampler
• Carbon speciation samplers (22.0 lpm)–URG-3000(N)
• Carbon speciation samplers (6.7 lpm)–Met One SASS and SuperSASS
• Black carbon analyzers (1 - 5 lpm)–Magee Aethalometer, Met One BC-1050

  • Thumbnail of document FP 25 Brochure 5169
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    FP 25 Brochure 5169

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  • Thumbnail of document DOC SPECS FP25 14867
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    DOC SPECS FP25 14867

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  • Thumbnail of document Alicat FP 25 Calibrator Manual 14868
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    Alicat FP 25 Calibrator Manual 14868

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