FLUID COMPONENTS, INTL
CHAPTER 1 - GENERAL INFORMATION
Technical Specifications
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Process Connection
3/4 inch male NPT standard. 1 inch BSP, 1 inch
male NPT, 1/4 inch male NPT (FLT93-F only),
flanged mounting, spool piece with 3/4 inch NPT tee
or retractable sensing element available.
Insertion Length
Beginning as low as 0.9 inches (23 mm). Standard as
well as custom lengths are available.
Sensing Element Material
All wetted surfaces are 316 Stainless steel, with all-
welded construction. Hastelloy C-276, Monel 400
and electro-polished stainless steel surface preparation
optionally available. Titanium is optionally available
on the FLT93-S configuration only.
Operating Temperature
Control circuit:
Ambient: -40 to 140°F (-40 to 60°C).
Sensing element:
Standard temperature configuration:
-40 to 350°F (-40 to 177°C).
Medium temperature configuration:
-100 to 500°F (-73 to 260°C).
High temperature configuration:
-100 to 850°F (-73 to 454°C).
Operating Pressure
Hydrostatically proof pressure tested to 3500 psi
(241.3 bar) at 70°F (21.1°C). De-rated with
temperature, the maximum recommended operation
service is 2350 psi (162 bar) at 500°F (260°C).
Higher ratings available with special construction and
test certification.
Flow Range
From 0.01 to 5 fps (0.006 to 0.15mps) with fluid or
0.25 to 120 fps (0.076 to 38.1 mps) with gas,
depending upon model.
Signal Output
Buffered voltage output available as a standard for
temperature and either flow or level/interface. The
minimum load impedance is 100 K ohms.
Accuracy
Switch point accuracy:
Up to ± 2% of the switch point
velocity.
Monitoring accuracy:
±5 % reading (or ±0.04 fps, 0.012 mps,
which ever is larger for liquid applications
and ±2 fps, 0.061 mps, which ever is larger
for gas applications).
Level accuracy:
Down to ±0.1 inch (±0.25 cm)
Temperature accuracy:
Up to ±2 °F, (±1.1°C) depending upon
application. Higher accuracy is available
with factory calibration.
Repeatability
±0.5% of monitor reading.
Up to ±0.05 inch (±0.13 cm) of level depending on
model.
±1.0°F, (±0.56°C) of temperature.
Response Time
Alarm set point may be set as low as 0.5 seconds.
Alarm reset may be as low as 2.5 seconds.
Input Power
Field or factory selectable for 115 Vac ±15V, 13VA
100 mA maximum; 230 Vac ±30V 14 VA 50mA
maximum; 24 Vac +2 to -6V 12.5 VA 485 mA
maximum; or 24 Vdc +6, to -3V, 7 watts, 230 mA
maximum. 100 Vac ±10 V is optionally available.
All AC Power is 50 to 60 Hz. Power applied is
indicated by an LED.
Heater Power
Field or factory selectable for specific fluid service
requirements.
Relay Rating
Dual alarm SPDT or single alarm DPDT field
configurable 6 amp resistive at 240 Vac, 115 Vac or
24 Vdc. Options available on auxiliary relay board
are 2 amp or 10 amp DPDT, plastic sealed, 0.5 amp
DPDT hermetically sealed.
Enclosure
Hazardous Location Class I, II, Div. 1, 2 Groups B, C,
D, E, F, and G. NEMA type 4X optionally available.
Electronics
Part Number: 5294- _ _ _ FlexSwitch™
Agency Approvals
Factory Mutual and CSA system approved.
CENELEC (hazardous location only) system
approved. Approved CE marking.
FLT
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Series FlexSwitch
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Doc. No. 06EN003246 Rev. B
