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Alicat Scientifi c, Inc. tel. 888. 290. 6060
2045 N Forbes Blvd. Bldg 103 fax. 520. 290. 0109
Tucson AZ 85745 USA www.AlicatScientifi c.com 7
Technology Comparison
SPECIFICATION ALICAT PRODUCTS COMPETITOR PRODUCTS
Sensor Solid-State Silicon Based Differential Pressure (allows nearly instantaneous
response times)
RTD or Thermocouple
Response
Speed
10 milliseconds (time constant)
(no software corrections required—reduces over & undershooting of fl ow)
0.5-3.0 seconds (no software),
500 milliseconds (software corrections
predict fl ow)
Display Standard, Integrated (no extra cost for stand alone abilities) Optional if available, External Mount
Warm-up Time < 1 Second (cycle times can be reduced) 8—30 minutes
Totalizer Optional, Integrated (maintain stand alone functionality) or Remote Optional if available, External Mount
Process Data Integrated Display shows Mass Flow Rate, Volumetric Flow Rate, Line
Temperature and Line Absolute Pressure (reduce system components)
Mass fl ow rate
Output Options
Standard integrated display, analog (either 0-5 Vdc, 0-10 Vdc, 1-5 Vdc, or
4-20mA), and Standard RS-232 (no special software required)
Optional 2nd analog output for volumetric fl ow, temperature, or absolute
pressure. (reduce system components & save integration time)
Standard analog, optional display
if available, optional digital output if
available
Digital Output
Standard output includes mass fl ow rate volumetric fl ow rate, line
temperature, line absolute pressure, selected gas, AND total if ordered
with Totalizer option. Muti-drop RS-232 standard. (standard features
reduce costs for everyone)
Digital output of mass fl ow if
available.
Multi-drop not available
Power
7-30 Vdc, 35mA. Standard AC/DC adapter jack AND cable connector
pins. Can run off anything from a standard 9 Volt battery to 12 or 24 volt
systems. (reduce current & power draw)
Special supply with + and – regulated
15 Vdc
Higher supply current required
Fittings Standard NPT or miniature fi ttings. Optional SAE, BSPP, etc threads
available. (inexpensive, adaptable to common components)
Specialized Swagelok®, VCR, etc.
Multi-Gas
Versatility
Gas Select™ Standard 30+ gas select menu from integrated display.
(reduce inventory requirements with 1 off the shelf device)
Single gas, conversion charts
Inherent
Linearity Yes No
Documentation
Integrated display with model number, serial number, date of
manufacture, calibration technician, and software revision number.
Identifi cation label also standard. (device info is always with the device)
On paper included with unit, sticker
Flow Ranges
Ranges available from full scales of 0.5 standard ml/minute to full
scales of 1500 standard liters/min. (cover every required fl ow range with
one manufacturer)
Ranges available from 10 ml/minute
to 50 standard liters/min full scale.
Suitable Applications
As part of our mission, we strive to provide the correct instrument for every application. Alicat fl ow devices are a
good choice for applications that involve clean, dry gases. We recommend a fi lter upstream of the fl ow inlet (usually
20-50microns). Typically Alicat’s fl ow devices should be used with operating pressures below 145PSIG (100PSIG
for liquids). Alicat fl ow devices are not recommended for dirty gases or slurries. They are also not well suited for
applications with temperatures above 50º Celsius. Customized products for line temperatures of up to 100º Celsius
are available. Alicat engineers will be happy to discuss exceptions to the above limitations in detail.
Alicat Scientifi c, Inc. tel: 888 290 6060
2045 N Forbes Blvd. Bldg 103 fax: 520 290 0109
Tucson AZ 85745 USA www.AlicatScientifi c.com
Alicat Scientifi c, Inc. tel: 888 290 6060
7641 N Business Park Drive fax: 520 290 0109
Tucson AZ 85743 USA www.AlicatScientifi c.com
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