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Alicat Whisper Flow Calibrators

  • Quickly and precisely verify flow rates generated by vacuum or pressure before going into the field.
  • Ideal for real-time calibration of airflow controllers, passive sampling kits, air canisters, sampling pumps, and more.
  • Measure absolute pressure, mass flow, volumetric flow, and temperature of 98 different gases across a wide range of flows.
  • Choose a lab-based or convenient battery-powered portable model.

*Restek Recommends:
Recalibrate your Alicat flow calibrator once every year to maintain lifetime warranty. Prolonged failure to recalibrate your unit may result in increased error. To always get the most accurate measurements, contact Restek Customer Service to send in your flow calibrator for service, recertification, and recalibration (cat.# 26462).

資料と取扱い説明書
取扱い説明書: Alicat Operating Manual

Alicat Whisper Flow Calibrators

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  • Accurate—NIST-traceable and rated at ±0.75% of reading or ±0.1% of full-scale (whichever is greater); calibration documents provided with each unit.
  • Fast—
  • Sensitive—built for ambient conditions; ultra-low pressure drop of 0.07 psid.
  • Convenient—no computer connection or software required and all data is visible on one screen.
  • Tough—stainless-steel construction; unaffected by bumps, humidity, or changes in orientation; and supported by an Alicat lifetime warranty.*
  • Downloadable—data can be recorded on a computer via RS-232 connection or micro USB (unit has no onboard data logging).
  • Long-lasting—portable models with lithium-ion battery offer 8 hours (color) or 18 hours (monochrome) of use between charges; rated for 500 cycles before decline to 85%.**

Specifications
Accuracy at Calibration Conditions After Tare: ±0.75% of reading or ±0.1% of full-scale (whichever is greater)
High Accuracy at Calibration Conditions After Tare: ±0.6% of reading or ±0.1% of full-scale (whichever is greater)
Accuracy for Bidirectional Meters at Calibration Conditions After Tare: ±0.75% of reading or ±0.1% of total span (whichever is greater) from positive full-scale to negative full-scale
Repeatability: ± 0.02% full-scale
Temperature Sensitivity:
—Mass flow zero shift: ±0.03% of full-scale per °C from tare temperature
—Mass flow span shift: ±0.01% of reading per °C from 25°C
Pressure Sensitivity:
—Mass flow zero shift: ±0.01% of full-scale per ATM from tare pressure
—Mass flow span shift: ±1% of reading per atmosphere from calibration conditions
Operating Range/Turndown Ratio: 0.01% to 100% full-scale/10,000:1 turndown
Sensor Response Time: <1 ms>
Typical Indication Response Time (indication response time includes user adjustable averaging up to 255 ms): 127 ms (user adjustable)
Warm-Up Time: <1 second>
Operating Temperature: −10 to +60 °C
Humidity Range (non-condensing): 0 to 95%
Maximum Internal Pressure (static): 60 psig (damage possible above 10 PSID differential pressure)
Wetted Materials: 302/303 stainless steel, Viton, glass-reinforced polyphenylene sulfide, alumina, glass, gold, silicon, heat-cured epoxy, heat-cured silicone rubber
Certification: CE, NIST
Programmed Gases:
Short Name—Long Name
Air —Air (Clean Dry)
Ar —Argon
CH4 —Methane
CO —Carbon Monoxide
CO2 —Carbon Dioxide
C2H6 —Ethane
H2 —Hydrogen
He —Helium
N2 —Nitrogen
N2O —Nitrous Oxide
Ne —Neon
O2 —Oxygen
C3H8 —Propane
n-C4H10 —Normal Butane
C2H2 —Acetylene
C2H4 —Ethylene (Ethene)
Kr —Krypton
Xe —Xenon
C-25 —25% CO2, 75% Ar
C-10 —10% CO2, 90% Ar
C-8 —8% CO2, 92% Ar
C-2 —2% CO2, 98% Ar
C-75 —75% CO2, 25% Ar
He-25 —25% He, 75% Ar
He-75 —75% He, 25% Ar
A1025 —90% He, 7.5% Ar, 2.5% CO2
Star29 —Stargon CS (90% Ar, 8% CO2, 2% O2)
P-5 —5% CH4, 95% Ar
iButen —Isobutylene
C-15 —15% CO2, 85% Ar
C-20 —20% CO2, 80% Ar
C-50 —50% CO2, 50% Ar
He-50 —50% He, 50% Ar
He-90 —90% He, 10% Ar
Bio5M —5% CH4, 95% CO2
Bio10M —10% CH4, 90% CO2
Bio15M —15% CH4, 85% CO2
Bio20M —20% CH4, 80% CO2
Bio25M —25% CH4, 75% CO2
Bio30M —30% CH4, 70% CO2
Bio35M —35% CH4, 65% CO2
Bio40M —40% CH4, 60% CO2
Bio45M —45% CH4, 55% CO2
Bio50M —50% CH4, 50% CO2
Bio55M —55% CH4, 45% CO2
Bio60M —60% CH4, 40% CO2
Bio65M —65% CH4, 35% CO2
Bio70M —70% CH4, 30% CO2
Bio75M —75% CH4, 25% CO2
Bio80M —80% CH4, 20% CO2
Bio85M —85% CH4, 15% CO2
Bio90M —90% CH4, 10% CO2
Bio95M —95% CH4, 5% CO2
EAN-32 —32% O2, 68% N2
EAN —3 6% O2, 64% N2
EAN-40 —40% O2, 60% N2
HeOx20 —20% O2, 80% He
HeOx21 —21% O2, 79% He
HeOx30 —30% O2, 70% He
HeOx40 —40% O2, 60% He
HeOx50 —50% O2, 50% He
HeOx60 —60% O2, 40% He
HeOx80 —80% O2, 20% He
HeOx99 —99% O2, 1% He
EA-40 —Enriched Air-40% O2
EA-60 —Enriched Air-60% O2
EA-80 —Enriched Air-80% O2
Metab —Metabolic Exhalant (16% O2, 78.04% N2, 5% CO2, 0.96% Ar)
LG-4.5 —4.5% CO2, 13.5% N2, 82% He
LG-6—6% CO2, 14% N2, 80% He
LG-7 —7% CO2, 14% N2, 79% He
LG-9 —9% CO2, 15% N2, 76% He
HeNe-9 —9% Ne, 91% He
LG-9.4 —9.4% CO2, 19.25% N2, 71.35% He
SynG-1 —40% H2, 29% CO, 20% CO2, 11% CH4
SynG-2 —64% H2, 28% CO, 1% CO2, 7% CH4
SynG-3 —70% H2, 4% CO, 25% CO2, 1% CH4
SynG-4 —83% H2, 14% CO, 3% CH4
NatG-1 —93% CH4, 3% C2H6, 1% C3H8, 2% N2, 1% CO2
NatG-2 —95% CH4, 3% C2H6, 1% N2, 1% CO2
NatG-3 —95.2% CH4, 2.5% C2H6, 0.2% C3H8, 0.1% C4H10, 1.3% N2, 0.7% CO2
CoalG —50% H2, 35% CH4, 10% CO, 5% C2H4
Endo —75% H2, 25% N2
HHO —66.67% H2, 33.33% O2
HD-5 —LPG: 96.1% C3H8, 1.5% C2H6, 0.4% C3H6, 1.9% n-C4H10
HD-10 —LPG: 85% C3H8, 10% C3H6, 5% n-C4H10
OCG-89 —89% O2, 7% N2, 4% Ar
OCG-93 —93% O2, 3% N2, 4% Ar
OCG-95 —95% O2, 1% N2, 4% Ar
FG-1 —2.5% O2, 10.8% CO2, 85.7% N2, 1% Ar
FG-2 —2.9% O2, 14% CO2, 82.1% N2, 1% Ar
FG-3 —3.7% O2, 15% CO2, 80.3% N2, 1% Ar
FG-4 —7% O2, 12% CO2, 80% N2, 1% Ar
FG-5 —10% O2, 9.5% CO2, 79.5% N2, 1% Ar
FG-6 —13% O2, 7% CO2, 79% N2, 1% Ar
P-10 —10% CH4 90% Ar
D-2 —Deuterium

*Restek Recommends: Recalibrate your Alicat flow calibrator once every year to maintain lifetime warranty. Prolonged failure to recalibrate your unit may result in increased error. To always get the most accurate measurements, contact Restek Customer Service to send in your flow calibrator for service, recertification, and recalibration (cat.# 26462).
** Note: Handling, removing, or replacing the battery will void the Alicat warranty.