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Technical Data for
FP-25
Flow Calibrator
The Alicat FP-25 is an easy-to-use, NIST-traceable device for audit and calibration of volumetric
flow, ambient temperature, and barometric pressure.
Specifications
Communications / Power
FP-25 Flow Calibrator
Monochrome LCD
Simultaneously displays Volumetric Flow, Standard Flow, Barometric
Pressure and Ambient Temperature.
Digital Output Signal
RS-232 Serial via Micro-USB-B connection
Electrical Connection
Micro-USB-B
Supply Voltage
+5 Vdc (Micro-USB-B)
Operating Conditions
FP-25 Flow Calibrator
Mass Reference Conditions (STP)
25ºC & 14.696 psia (adjustable)
Operating / Storage Temperature
−30 to +60º Celsius
Charging Temperature
0 to +45º Celsius
Humidity Range (Non–Condensing)
0 to 100% RH with live humidity sensing
Maximum Internal Pressure (Static)
45 psig
Maximum Allowable Instantaneous Differential
Pressure Across Device (Inlet to Outlet)
15 psid
Proof Pressure
175 psig
Mounting Attitude Sensitivity
None
Wetted Materials
6061 Aluminum, 302 Stainless Steel, Heat Cured Silicone Rubber, Glass
Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Gold, Silicon, Glass.
Unit and Included Accessories
FP-25 Flow Calibrator
Weight
1.4 lb. (6.7 lb. with case and accessories)
Dimensions
7.6” x 1.4” x 2.5” ( 12.5” X 14.5” x 5.4” in hard case)
Protective case
Waterproof Hard Case
Fittings
Direct Mode adapters for 1.25” OD sampler downtubes,
1/4” NPT barb fitting
Tubing
1/4” ID X 7/16” OD Silicone Tubing (5 ft)
Warranty
Lifetime
Performance
FP-25 Flow Calibrator
Instrument Flow Range
0.125 to 25.000 lpm / slpm
Flow Accuracy and Repeatability
± 1.0% of Reading (at calibration conditions after tare)
Operating Range / Turndown Ratio
0.5% to 100% Full Scale / 200:1 Turndown
Pressure Drop with Fittings
0.10 psi @ 16.7 lpm 0.16 psi @ 25.0 lpm
Barometric Pressure Accuracy
±1 mmHg across 475-825 mmHg
Temperature Probe Accuracy
±0.2º Celsius
Relative Humidity Accuracy
±3.5% RH
Typical Response Time
10 ms
Warm-up Time
< 1 Second
Battery Life
12 hours
Recharge Time
3.5 hours with 2A USB supply and device turned off
Specifications