FS10i Flow Switch + Monitor

Materials of Construction (Wetted Parts)
316L SS with Hastelloy C-22 thermowells

Flow Sensitivity/Setpoint Range
Water:    0.01 FPS to 0.5 FPS [0,003 MPS to 0,15 MPS]
Air/Gas: 0.25 FPS to 400 SFPS [0,076 MPS to 122 MPS]

Repeatability: ±0.5% of reading

Temperature Coefficient For temperatures > ±30°F [±16°C]
Gas: Maximum ±0.025% of reading/°F up to 250°F [±0,05% of reading/°C up to 121°C]
Liquid: Maximum ±0.2% of reading/°F up to 250°F [±0,367% of reading/°C up to 121°C]

Operating Temperature
-40°F to 250°F [-40°C to 121]
Teflon ferrule maximum temperature is 200°F [93°C]

Operating Pressure
2000 psi [138 bar]
Teflon ferrule maximum pressure is 150 psig [10 bar(g)]

Insertion “U” lengths
2″[50 mm] fixed
6″[150 mm] with variable insertion depth, 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
Relay: SPDT, 1A @ 24 Vdc, 120 Vac Analog: 4-20 mA trending*
Serial: RS232C I/O
*500 ohm maximum load; user scalable, general purpose, uncalibrated output proportional to flow rate for trend monitoring or assignable to temperature; fault indication per NAMUR NE43 guidelines, user-selectable for high (>21.0mA) or low (<3.6mA) default
For linearized and calibrated analog outputs, see FCI’s line of thermal mass flow meter products

Operation
Two top-mounted buttons to program switch/trip point, zero and span setting, fail-safe, relay hysterisis and relay time delay; button operation may be user disabled to prevent unwanted changes; all set-up function are also user programmable via the RS232C serial port

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 30Vdc); 2.5 watts maximum

Operating Temperature
-40°C 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 Rating:
​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; II 3 G Ex ec IIC T4 Gc;  II 3 D Ex tc IIIC T81°C Dc; IP64
EAC/TR CU:  Pending. Contact FCI
Other CE Mark, CRN, complies with Canadian electrical code requirement of ANSI/ISA 12.27.01-2011 as single seal device.
IEC 61508 (SIL):  SIL 2 Compliant, SFF 90%