Series 100 Smart-Trak™

High Performance Mass Flow Meters and Controllers

ISOREGISTERED

9001

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Whatever your criteria – low cost, performance, size, flexibility, or

design – Sierra’s new Smart-Trak™ digital mass flow controller is hard to

beat. Ideal for OEM customers and end-users alike, Smart-Trak offers

accurate, reliable performance, an easy-to-use interface, rugged stainless

steel construction, and maximum flexibility – at a very competitive price.

Smart-Trak’s breakthrough Dial-a-Gas capability and pilot module

interface not only let you change flow rates, but also setpoints, output

signals, engineering units, and other critical flow parameters, for up to ten

gases. Accuracy starts at ±1% of

full scale standard or it can be

improved to ±0.7% of reading

plus 0.3% of full scale with our

high accuracy calibration.

Repeatability is ±0.2% of full

scale for ten gases. This means

no more delay or additional cost

for shipping, recalibration and

instrument testing if you need to

make a system change. And, for our OEM and distributor clients, it

provides an opportunity to stock calibrated units for a variety of

applications, and offer your customers faster equipment delivery.

True Digital Performance

Unlike most analog mass flow controllers that are built to order for

specific gases and flow ranges, Smart-Trak lets you adjust instrument

operating parameters to accommodate unexpected application variations.

Should your system requirements change between the time you order

and the time you install, you can easily re-configure Smart-Trak to meet

your new requirements.

Sierra’s Smart-Trak is a completely microprocessor-based

instrument, offering you the highest accuracy and the greatest flexibility.

The instrument’s digital bridge dramatically reduces signal-to-noise ratio.

An RS232 output and two user-selectable analog outputs are available

from the device, including 4-20 mA, 0-5 VDC, 0-10 VDC, or 1-5 VDC.

These can be easily interfaced with your control system or workstation.

What’s New in Mass Flow?Plenty! Starting with a unique user interface and Dial-a-Gas™ capability, at the lowestprice of any digital mass flow controller. And that’s just the beginning.

Unique Pilot Module Interface

Smart-Trak’s unique pilot module interface is much more than a

display. It replaces expensive control/readout electronics – at a fraction of

the price – and gives you access to a wide variety of control functions via

six push buttons.

The easy-to-use menu lets you configure or change gases, setpoints,

flow ranges, engineering units, valve states, or full-scale values with the

touch of a finger. The pilot module is mounted directly on the instrument

or remotely, up to 50 feet from the flow controller. The remote pilot

module can be wall mounted, panel mounted, or can sit on a tabletop.

Dial-a-Gas Capability

With Smart-Trak, changing gases is as easy

as a finger-touch or a keystroke. The instrument’s

microprocessor is programmed for ten gases that are commonly used in

biotech, pharmaceutical, analytical, and research applications (see

performance specifications). Other gases can be customer-specified and

programmed, making Smart-Trak a truly custom instrument. This all-

digital approach to mass flow measurement ensures specified accuracy

over the entire range of each gas, and provides unequaled stability.

Dial-a-Gas is available via push buttons on the pilot module, or from

your PC. Smart-Trak Software™ is included with every instrument and a

connecting cable lets you view, configure, and change gases and other

operating parameters from any personal computer running Microsoft

Windows™.

Pilot Module Basic Unit

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A Tough, Smart Va l v e

The Smart-Trak valve sets new standards for mass flow controller

performance and compensates for a wide range of temperature and

pressure variations in the gas stream. User-selectable operating modes –

including closed, normal, and purge – are controlled from the pilot

module or via a remote signal.

Smart-Trak is available with Viton®, Neoprene®, or Kalrez®

elastomers, and a sturdy, molded valve seat ensures accurate

performance over the entire flow range, at pressures up to 500

psig.

Flexible Solution

A familiar footprint, a

variety of product

configurations, and a

simple power supply

are just a few of the

features that make

Smart-Trak a smart

choice for end-

users and OEM

customers alike.

At only 1" x

3" x 5", the instrument offers easy "drop in" replacement of any

mass flow controller. And for remote monitoring and OEM

applications, it provides both digital and analog control without

complex wiring or control boxes. Smart-Trak’s single-sided 24VDC

power input also eliminates the need for an expensive dual-polarity

power supply and simplifies installation.

The all-stainless steel instrument is available in any range from 0-10

sccm to 0-50 slm (nitrogen equivalent) and is suitable for any clean gas

flow, including toxics and corrosives. It can be mounted in any orientation,

and is available with compression, NPT, VCO, and VCR process connections.

For systems that require simple mass flow monitoring, Smart-Trak is

available as a meter, with many of the same features as the controller, but

at a reduced price.

Pilot Module Readout Examples

S etpoint

O utput

G as

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Large DigitalL C D

R e a d o u t

Push ButtonC o n v e n i e n c e

R u g g e dStainless Steel

Flow Body

M u l t i - F u n c t i o nD - C o n n e c t o r

RemotePilot ModuleConnection

5 Harris Court, Building LMonterey CA 93940800-866-0200831-373-0200fax: 831-373-4402www.sierrainstruments.com

SIERRA INSTRUMENTS, B.V Sierra Instruments AsiaBijlmansweid 2 100 Jiangnan Dadao,1934RE Egmond a/d Hoef Zhong Guang Bldg. Suite 2303The Netherlands Guangzhou, P.R. China 510240+ 31 72 507 1400 +8620 3435 4870fax: + 31 72 507 1401 fax: +8620 3435 4872 100bro A 5M 02/04

Performance Specifications

AccuracyStandard calibration: ± 1% of full scale at operating conditionsHigh accuracy calibration: ± 0.7% of reading plus 0.3% of full scale atoperating conditions

Dial-A-Gas± 1.0 % of full scale for 10 gases simultaneouslyRepeatability± 0.2% of full scale

Temperature Coefficient± 0.025% of full scale per °F (0.05% of full scale per °C), or better

Pressure Coefficient± 0.01% of full scale per psi (0.15% of full scale per bar), or better

Response Time300 millisecond time constant; 2 seconds (typical) to within ± 2% of finalvalue (includes settling time)Faster or slower available upon request

For more detailed information...www.sierrasmarttrak.com

Operating Specifications

G a s e sAll clean gases including corrosives; specify when orderingThe following ten gases make up the Dial-A-Gas™ feature of every Smart-Trakinstrument; up to nine alternate gases may be substituted.

Mass Flow Rates0 to 10 sccm to 0 to 50 nlpm of nitrogen at 760 mm Hg and 21°C (70°F) or theequivalent; other engineering units are available (e.g., scfh or nm3/ h )Gas Pressure500 psig (34.5 barg) maximum, burst tested to 750 psig (52 barg)

Pressure Drop Across a Meter

Differential Pressure Requirement For Controllers30 psid (2 bard) optimum, 15 to 50 psid (1-3.5 bard) standardLower or higher are available upon requestGas & Ambient Temperature32°F to 122°F (0°C to 50°C)Leak Integrity5 X 10-9 standard cc/sec of helium maximum Power RequirementsFor Mass Flow Meters:12-30 VDC (300 mA, regulated)For Mass Flow Controllers:

24 - 30 VDC ± 5% (410 mA, regulated) standard 15-22 VDC ± 5% (800 mA) with optional converter

Control Range2–100% of full scale flow; automatic shut-off at 1%Output Signal

A n a l o g :Linear 4–20 mA, 500 ohms maximum loop resistance and one of the following: Linear 0–5 VDC, 0–10 VDC, 1–5 VDC, 1000 ohms minimum load resistance

D i g i t a l :RS-232; Pilot Module Display optional

Command Signal

Analog (choice of one):Linear 4–20 mA, 0–5 VDC, 0–10 VDC, 1–5 VDC

D i g i t a l :RS-232; Pilot Module Display optional

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0.1 0.36(24.5) N/A0.5 0.36(24.5) N/A1 0.37 (25.4) N/A

10 0.46 (31.7) 0.41 (28.6)20 0.66 (45.7) 0.47 (32.7)30 N/A 0.59 (40.9)40 N/A 0.77 (53.3)50 N/A 1.00 (68.8)

PRESSURE DROP FOR AIR

Flow Rate (slpm) Pressure Drop in PSI (mbar)

1/4 inch fittings (std) 3/8 inch fittings (opt)

TABLE 1: DIAL-A-GAS

Gas Max. Flow Rate(SLPM)

Air 50Argon 72.5CO2 37CO 50

Methane 36Helium 72.7

Hydrogen 50.5Oxygen 50Nitrogen 50

N2 O 35.5