|
|
FS2000 NuTec® 2 Wire Thermal Flow Switch
Flow Switch SummaryThe FS2000 insertion type NuTec
represents the first thermal flow switch designed with 2 wire, 4 to
20 mA loop power. Using 24 Vdc input power, this design allows for
retrofitting existing 2 wire failure prone mechanical float and paddle
switches without wiring modifications. An alarm with SPDT relay and
input power of 85 to 265 Vac, 24 Vdc or 24 Vac is available as an
option. FCI is the only thermal manufacturer providing temperature
compensation to ensure set point accuracy for process temperatures that
vary up to ± 100° F.
All Nutec Series flow and level switches are designed with proven
thermal mass flow sensor technology in a rugged package that is easy to
install and requires minimal maintenance.
|
Applications |
Pump protection |
Chemical injection |
|
Seal leak detection |
HVAC monitoring |
|
Lubricant monitoring |
Drain line flow |
SpecificationsSetpoint Range:
Water:
0.01 to 1.5 fps [0.03 to 0.45 mps]
Hydrocarbon-based Liquids:
0.1 to 2 fps [0.03 to 0.6 mps]
Air/Gas:
0.5 to 100 sfps [0.15 to 30 smps] at
standard conditions of 70° F [21.1° C] and 14.7 psia [1.013 bar(g)].
Repeatability: ± 1% of setpoint range
Response Time: 0.5 to 2.5 seconds
Enclosure:
For 2-wire: Aluminum rated for hazardous location use (Class I
and II, Division 1 and 2, Group C and D and resists the effect of
weather and corrosion (NEMA/CSA Type 4X and equivalent to IP66).
For Alarm Relay: Aluminum rated for hazardous location use (Class
I and II, Division 1 and 2, Group B, C, D, E, F and G; and EEx d IIC)
and resists the effect of weather and corrosion (NEMA/CSA Type 4X and
equivalent to IP66).
Agency Approvals: FM, CSA, CRN, ATEX (pending) and CE Mark. |
Flow Element
Materials of Construction: 304/305 stainless steel or 316L all
welded stainless steel for all wetted surfaces.
Process Connection:
For 304/305 stainless steel: 0.25 inch male NPT.
For 316L stainless steel: 0.75 inch male NPT
Insertion Length:
For 304/305 stainless steel:
0.60 inches [15 mm]
0.98 inches [25 mm]
2.23 inches [57 mm]
3.80 inches [152 mm]
For 316L stainless steel: 0.75 inch male NPT
2 inches [51 mm]
6 inches [152 mm]
Customer specified lengths are available as an option.
Operating Temperature: -40° to +250° F [-40° to +121° C]
Operating Pressure: To 500 psig [35 bar(g)]
Control CircuitOperating Temperature: 0° to +140° F [-18° to
+60° C]
Input Power:
For 2-wire: 22.5 to 30 Vdc, loop powered, 0.5 watt.
For Alarm Relay: 85 to 265 Vac at 3 watts, 24 Vac ± 2.5 Vac at
2.5 watts, or 24 Vdc +2.5/-1.5 Vdc at 2.5 watts.
Signal Output:
For 2-wire: 2 stepped outputs with alarm conditions at 14 mA ±
0.5 mA or 18 mA ± 0.5 mA field selectable. NPN, open collector
transistor 250 mA maximum current (alarm).
For Alarm Relay: 1 SPDT rated at 6 amps at 115 Vac, 240 Vac or 24
Vdc.
Electrical Connection:
For 304/305 stainless steel: 0.5 inch female NPT.
For 316L stainless steel: 0.75 inch female NPT |
Optional N.I.S.T. Flow Calibration ServicesFactory N.I.S.T. calibration in air or water is available as an option
for customer specified setpoint(s) or a flow curve based on the media
ranges specified above |
|
