Alicat Scientific MB Data sheet

Technical Data for Alicat MB-Series Mass Flow Meters

10 SCCM full scale through 20 SLPM of full scale

Standard Specifi cations (Consult Alicat for available options.)

SENSOR PERFORMANCE

Mass Flow Accuracy at calibration conditions

High Accuracy Option

Bidirectional option

Repeatability (2σ) ±(0.1% of reading + 0.02% of full scale)

Flow Measurement Range 0.01–100% of full scale

Temperature Sensitivity

Pressure Sensitivity

Operating Temperature Range -10–60°C (expanded range available)

Temperature Accuracy ±0.75°C

Operating Pressure full scale 160 PSIA (additional options available)

Pressure Accuracy above 1 atm ±0.5% of reading

Pressure Accuracy below 1 atm ±0.07 PSIA

Totalizer Volume Uncertainty ±0.5% of reading additional uncertainty

Sensor Response Time <1 ms

Typical Indication Response Time

Typical Warm-Up Time <1 s

 Stated accuracy is after tare under equilibrium conditions.

Extreme gas behavior (especially near state boundaries) can introduce additional fl ow uncertainties.

 Indication response time includes user adjustable averaging up to 255 ms.

1

1

1

±0.6% of reading or ± 0.1% of full scale, whichever is greater

±0.5% of reading or ± 0.1% of full scale, whichever is greater

No additional uncertainties

Mass fl ow zero shift: ±0.01% of full scale per °C from tare temperature

Mass fl ow span shift: ±0.01% of reading per °C from 25°C

Mass fl ow zero shift: ±0.01% of full scale per atm from tare pressure

Mass fl ow span shift: ±0.1% of reading per atmosphere from calibration conditions

2

<10 ms (fl ow rate dependent)

Tel: [phone]

www.alicat.com/mb

MECHANICAL

Minimum Operating Pressure

Maximum Operating Pressure

11.5 PSIA common mode pressure (lower operating pressures available)
Di erential pressure must exceed 1 PSID

Damage possible above 175 PSIA common mode pressure

Damage possible above 75 PSID di erential pressure

Ingress Protection IP40 (consult Alicat for weatherproofi ng options)

Humidity Range 0–95%, non-condensing

Wetted Materials

303 / 304 stainless steel, Viton®, heat-cured silicone rubber, glass-reinforced polyamide,

heat-cured epoxy, aluminum, gold, silicon, glass

COMMUNICATIONS

Digital I/O Options Serial over Micro-USB B

Digital Data Update Rate 40 Hz at 19200 baud

Display Update Rate 10 Hz

Battery Life (contrast dependent)

Monochrome screen: 18 hours, 14 hours backlit

Color TFT: 8 hours

DOC-SPECS-MB-MID

REV 0, October 09, 2019

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Technical Data for Alicat MB-Series Mass Flow Meters

3

U

PSIAC

T

W

SCCMAi

r

10 SCCM full scale through 20 SLPM of full scale

FEATURES

STP Reference Conditions 25°C and 1 atm (default), user confi gurable

NTP Reference Conditions 0°C and 1 atm (default), user confi gurable

Monochrome LCD or Color TFT Display

with integrated touchpad

Gas Select™

property calculations across the operating temperature and pressure ranges for highest accuracy.

COMPOSER™ 20 user defi nable gas mixes.Each mix may have up to 5 gases with 0.01% precision.

RANGE-SPECIFIC TECHNICAL DATA

Full scale fl ow Pressure drop at full scale fl ow³ Process connections⁴ Mount tap size

10–50 SCCM . PSID M5 female thread (10-32 compatible)

100 SCCM–20 SLPM . PSID ⁄” NPT female 2× 8-32 UNC 0.350 in [8.89 mm]

 Default valve venting air to atmosphere. Lower pressure drops available,

please see our WHISPER-Series mass fl ow meters at www.alicat.com/mwb.

 Consult Alicat for available process connection options, such as:

compression, face seal, push-to-connect, BSPP, SAE, or Swagelok (including tube, VCO, and VCR).

 Shipped with Buna-N O-Ring face seal to ⁄” female NPT fi ttings.

Simultaneously displays mass fl ow, volumetric fl ow, pressure and temperature

98 user selectable gases stored internally. Each gas optimized to match NIST’s REFPROP 10 gas

5

2× 8-32 UNC 0.175 in [4.45 mm]

Tel: [phone]

www.alicat.com/mb

H

Process

Connection

MICRO

USB

POWER

SWITCH

W

MassFlow

ARE

FLO

E

+13.49+22.7

+0.0 +0.0
CCM SCCMMEN

Controls

Light

Switch

A

B

D

F

C

Representative Example

100 SCCM

G

DIMENSIONS

Full scale fl ow Weight Height Width Depth A B C E F G

10–50 SCCM

100 SCCM–20 SLPM

DOC-SPECS-MB-MID

≈ 1.1 lb 5.713 in 2.375 in 1.050 in 0.336 in 0.525 in 0.125 in 0.925 in 0.150 in 2.225 in

≈ 0.5 kg 145.11 mm 60.33 mm 26.67 mm 8.53 mm 13.34 mm 3.18 mm 23.50 mm 3.81 mm 56.52 mm

≈ 1.1 lb 5.713 in 2.375 in 1.050 in 0.350 in 0.525 in 0.125 in 0.925 in 0.150 in 2.225 in

≈ 0.5 kg 145.11 mm 60.33 mm 26.67 mm 8.89 mm 13.34 mm 3.18 mm 23.50 mm 3.81 mm 56.52 mm

REV 0, October 09, 2019

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