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F-5200 Insertion Thermal Mass Flow Meter Manual 05/14 - 0756-8 / 19475 Page 6

1.3 STANDARD FEATURES AND SPECIFICATIONS

CALIBRATION

Every ONICON thermal mass ow meter is wet calibrated in a ow laboratory against standards that are directly

traceable to N.I.S.T. A certicate of calibration accompanies every meter. Each meter is calibrated for use with a specic gas.

Standard Reference Conditions for Natural Gas: Standard Reference Conditions for Air:

Fluid: Methane Fluid: Air and all other gases

Fluid Temperature: 60°F Fluid Temperature: 70° F

Fluid Pressure: 29.92” Hg (14.70 PSIA) Fluid Pressure: 29.92” Hg (14.70 PSIA)

Contact ONICON for reference conditions for other uid types.

ACCURACY

Natural Gas

± 1.0% of reading from 500 – 7000 SFPM

± 2.0 % of reading from 100 – 500 SFPM

Compressed Air & other high velocity calibrations

± 1.0 % of reading + 0.5% of scale over a

100:1 turndown

OVERALL FLOW RANGE

5 to 35,000 SFPM

SENSING METHOD

Thermal mass ow utilizing hybrid analog/digital sensing circuitry, no moving parts

INPUT POWER

24 VDC ±10%, 100 mA maximum current

FLUID TEMPERATURE RANGE

Standard: -40° to +150° F

AMBIENT TEMPERATURE RANGE

-5° to 150° F

MAXIMUM OPERATING PRESSURE

Standard: 250 PSI

MATERIALS OF CONSTRUCTION

Wetted metal components - 316L stainless steel

Sensor head - Platinum windings encapsulated in 316L stainless steel

Electronics enclosure - Powder coat painted cast aluminum

ENCLOSURE RATING

Weathertight, NEMA 4

PROGRAMMING / MEMORY

Factory programmed for specic application.

Non-volatile memory retains all program parameters and totalized values in the event of power loss.

OUTPUT SIGNAL(S)

Analog output: 4-20 mA

Scalable pulse output: Isolated Dry Contact, Contact Ratings 50VDC@100mA, Pulse Duration 500 ms

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