Gases

Most gases compatible with 316L stainless steel (consult factory)


Mass Flow Rates
0 to 200 sfpm (0 to 1 nmps) minimum, 0 to 6,000 sfpm

(0 to 30 nmps) maximum for air and nitrogen standard


Gas Pressure

Compression fittings : 500psig (20barg) maximum

1-inch 150 lb flange (15°F to 176°F) : 185psig (12.8 barg) maximum

Low Pressure Hot Tap : 100 psig (7 barg) maximum

High Pressure Hot Tap : 286 psig (20 barg) maximum


Pressure Drop

Negligible for pipes three inches in diameter or larger


Gas & Ambient Temperature

Gas..........15°F to 176°F (-10°C to 80°C)

                Optionl -15°F to 250°F(-26°C to 120°C),

                application dependent higher temperature available,

                consult factory

Ambient... -5°F to 120°F (-20°C to 50°C)



Leak Integrity
1x10^-4 atm cc/sec of helium maximum



Power Requirements
22 to 28VDC (regulated), 625mA maximum



Output Signal

Linear 0-10VDC, 1000 ohms minimum load resistance or
Linear 4-20mA proportional mass flow rate.



Alarms

Hard contact user-adjustable high and low

Relay ratings...Maximum : 24VDC - 1.25A

                                       100VAC - 0.5A



Displays
Alphanumeric 2x16 digit backlight LCD

Adjustable variables...Full scale (50 to 100%)

                                Time Response (1 to 7 seconds)

                                Correction factor setting (0.5 to 5)

                                Zero and span

                                High and low alarm settings



Totalizer
Eight digits (9,999,999.9) in engineering units

Resettable by software, on-board swithches or external magnet



Accuracy of Point Velocity
±2% of reading from 10 to 100% of calibrated range

±0.5% of full scale below 10% of calibrated range

±2% of full scale below 50 sfpm(0.25 nmps)



Repeatability
±0.2% of full scale



Pressure Coefficient
Negligible within ±50 psig (3.4 barg) of customer specified conditions.

Special calibration required for higher pressures.



Response Time
One second to 63% of final velocity value.



Temperature Coefficient
±0.02% of reading per °F within ±50 °F of customer specified conditions.

±0.03% of reading per °F within ±50 °F to 100 °F of customer specified conditions.

±0.04% of reading per °C within ±25 °C of customer specified conditions.

±0.06% of reading per °C within ±25 °C to 50 °C of customer specified conditions.



Wetted Materials
316L stainless steel



Enclosure
Hazardous-Area Location Enclosure (IP67) or NEMA 4X(IP65)

Both are powder-coated cast aluminum



Electrical Connections
Two 3/4 inch NPT...Hazardous-Area Location Enclosure(IP67)

One 1/2 inch NPT...NEMA 4X Enclosure (IP65)



Mounting (optional)
ANSI 1-inch 150 lb flange

1/2-inch tube compression fitting with 1/2-inch male NPT.

Hot tap systems



Certifications*

EEx (EEx d 2C T6...T2) Cenelec

FM (Explosion proof for Class 1, Division 1, Groups B,C,D)

ISO9001 by UKAS



Gases (10:1 0.1m/s min ~ 30m/s max)

Argon, Helium, hydrogen, nitrogen, oxygen(consult factory for other gases)



Liquid (40:1 0.1m/s min ~ 2.5m/s max)

General clean water (consult factory for other gases)