Onicon F-5100 Insertion Instrukcja Użytkownika Pobierz pdf (Strona 6)

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F-5100 Insertion Thermal Mass Flow Meter Manual 05/15 - 0663-20 / 18333 Page 6

1.3 STANDARD FEATURES AND SPECIFICATIONS

CALIBRATION

Every ONICON thermal mass ow sensor 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 sensor. Each sensor is calibrated for use with a specic gas.

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

Fluid: Methane Fluid: Air

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

Standard: 24 VDC ±10%, 100 mA maximum current

Optional: 90-265 VAC, 50/60 Hz

Optional: 12 VDC ±10%, 200 mA maximum current

FLUID TEMPERATURE RANGE

Standard: -40° to 200° F

Optional: 200° to 300° F

Optional: 300° to 450° F

Optional: 450° to 700° F

AMBIENT TEMPERATURE RANGE

-5° to 150° F

MAXIMUM OPERATING PRESSURE

Standard: 500 PSI

Optional: 1,000 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

Remote mount enclosure - Cast aluminum

ENCLOSURE RATING

Weathertight, NEMA 4 (All versions)

APPROVALS

Integral and remote mount (24 VDC only) Class 1, Division 2, Groups B, C, & D,

(ATEX: Ex nA IIC T4X)

ELECTRICAL CONNECTIONS

Enclosed terminal blocks, cable access through two ½” NPT conduit ttings

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: Active 24 VDC pulse, 500ms duration

DISPLAY

Graphic OLED display indicates:

Bar graph indicating percentage of full scale ow

Flow rate: 7 digits

Flow total: 9 digits (Total rolls over to zero when maximum count is exceeded)

Fluid temperature: 3 digits

mWatts of energy used to heat ow sensor: 4 digits

Engineering units for rate and total

1 2 3 4 5 6 7 8 9 10 11 ... 32 33

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