תיאור
The FS10i is a compact, economical solution to air and compressed air
flow metering. Utilizing application proven thermal dispersion technology,
the FS10i provides a highly accurate and repeatable linearized 4-20 mA
output of flow rate. Additionally, for applications benefiting from a high or
low flow alarm point, the FS1Oi includes a user programmable 1A SPDT
relay output.
The FS10i flow meter is designed for use in air or compressed air line
sizes from 1 inch to 20 inches [25 mm to 500 mm]. For line sizes of 1 inch
or 2 inch [25 mm or 50 mm] an in-line pipe tee is provided to ensure the
instrument’s accuracy and repeatability in the installation. The stainless
steel pipe tee and female NPT threads allow for easy, secure installation
in the pipe run. For line sizes 2 1/2 inch [63,5 mm] or larger, select the
insertion-style FS10i. The insertion-style is offered in two probe lengths,
either 6 inch or 12 inch [152 mm or 305 mm]. These are outfitted with
1/2 inch compression fitting to adjust the actual insertion depth to be
compatible with a range of pipe diameters and installation variables
to achieve inserting the sensor element to the center-point of the pipe.
User set-up, via the PC interface and free FCI software utility program,
includes scaling the 4-20 mA output to desired flow range, setting the
relay trip point, adding hysteresis or time delay to the relay's action, etc.
For visual indication the FS1Oi includes a 10-segment LED array that
illuminates proportionally to the flow rate as well as will start flashing if
an alarm trip occurs.
The FS10i is currently the only thermal mass flow
meter with a SIL 2 compliance rating. The FS1Oi is precision calibrated
on FCl's air flow stands which are outfitted with NIST and ISO/IEC 17025 traceable equipment that
ensure its accuracy and your confidence in using it.
If your air or compressed air flow meter criteria include low
cost, easy installation, and little, to no, routine maintenance, FCl's FS10i
is your solution.
FS 10I SPECIFICATIONS
Instrument
Measuring Principal: Thermal dispersion
Fluid Type: Air, compressed air
Accuracy: ± 1.5 % rdg, ± 0.5 % FS
Process Connections
In-line: 1 ″ or 2 ″ pipe tee, FNPT threads
Insertion: 1/2 ″ MNPT compression fitting with either Teflon or metal ferrule
Repeatability: ± 0.5 % of reading
Response Time: 4 sec. (1 time constant)
Temperature Coefficient For temperatures > ± 30 °F [± 16 °C]
Maximum ± 0.025 % of reading / °F up to 250 °F [± 0,05 % of reading / °C up to 121 °C]
Flow Element
Materials of Construction (Wetted Parts)
In-line: 316 stainless steel pipe tee; 316L stainless steel flow element
with Hastelloy C-22 thermowells
Insertion: 316L stainless steel with Hastelloy-C22 thermowells
FS10i specifications continued on next page
SIL 2
Compliance Rating
FS10 i Specifications Continued
Operating Temperature
-40 °F to 250 °F [-40 °C to 121 °C]
Teflon ferrule maximum temperature is 200 °F [93 °C]
Operating Pressure
In-line: 225 psi [15,5 bar]
Insertion: 500 psi [34 bar]
Teflon ferrule maximum pressure is 150 psig [10 bar(g)]
Insertion “U” lengths
6 ″ [152 mm] with variable insertion depth, 1/2 ″ MNPT compression fitting with Teflon or metal ferrule
12 ″ [305 mm] with variable insertion depth, 1/2 ″ MNPT compression fitting with Teflon or metal ferrule
Electronics
Display
10 segment LED array, sequential lighting related to flow rate and flashing when trip point exceeded
Output Signals
Analog: 4-20 mA *
Relay: SPDT, 1A @ 24 Vdc, 120 Vac (ATEX: DC only)
Serial: RS232C I/O
* 500 ohm maximum load; user scalable; fault indication per NAMUR NE43 guidelines, user-selectable for high (> 21.0 mA) or low (< 3.6 mA) default
Instrument Set-up
Free FCI set-up and configuration software utility program and 3-wire-to-DB9 RS232 dongle are supplied for interface of the FS10i to user's PC. This interface is required to set the 4-20 mA output for the specific line size, flow range, and engineering units, as well as alarm trip point, hysteresis, and trip time delay.
Trip Point Hysteresis Control: 0-100% of span
Trip Point Time Delay: User settable for 0-65,000 seconds
Input Power: 24 Vdc (21.5 Vdc to 30 Vdc); 2.5 watts maximum
Operating Temperature: -40 °F to 160 °F [-40 °C to 71 °C]
Enclosure / Housing
Material: Stainless steel body; aluminum end-cap/top with polyester overlay and clear, silicone sheath impact guard
Protection Ratings
Non-Ex installations: IP65, IP66, IP67
FM, FMc approved: NEMA 4X
ATEX, IECEx approved: IP64
Agency Approvals
FM , FMc Nonincendive, Class I Division 2 Groups A, B, C, D;
Class II, Division 2 Groups E, F, G; Class III,
T4@Ta=71°C, Type 4X
ATEX , IECEx Nonincendive for gas and dust, Zone 2/Zone 22
II 3 G Ex nA IIC T4 Gc, -40°C ≤ Ta ≤ +71°C
II 3 D Ex tc IIIC T81 °C Dc, -40°C ≤ Ta ≤ +71°C
IP64
Other: EAC/TR CU
Ingress Protection IP65, IP66, IP67 in non-hazardous locations
CE Marking, CRN, complies with Canadian Electrical code requirements
of ANSI / ISA 12.27.01-2011 as a single seal device
IEC 61508 (SIL) SIL 2 Compliant with Hardware Fault Tolerance (HFT) of 0; Safe Failure Fraction (SFF) 90%
Warranty: 1 Year