Fluid Components International FLT93 Nuclear - Manual (Page 9)

FLT ® Series FlexSwitch TM TECHNICAL SPECIFICATIONS
Fluid Components International LLC 9
ƒ Factory Calibrated Switch Point Accuracy
Any fl ow rate within the instrument fl ow range may be selected as a
setpoint alarm. A factory-calibrated setpoint adjustment may be
optimally preset with accuracy of ±2% of setpoint velocity over an
operating temperature range of ±50°F [±28°C].
ƒ Monitoring Accuracy
Based on a measured output voltage over the entire fl ow range, an
operating temperature range of ±50°F [±28°C], and an operating
pressure range of ±100 psig [±7 bar(g)]:
Liquids: ±5% reading or ±0.04 SFPS [±0.012 NMPS],
whichever is larger
Gases: ±5% reading or ±2 SFPS [±0.61 NMPS], whichever is larger
ƒ Repeatability
±0.5% reading
For Level/Interface Service
ƒ Accuracy
Model S
±0.25° [±6.4 mm]
Model F
±0.1° [±2.5 mm]
ƒ Repeatability
Model S
±0.125° [±3.2 mm]
Model F
±0.05° [±1.3 mm]
For Temperature Service
ƒ Accuracy
±2.0°F [±1°C] with fi eld setpoint adjustment. Monitoring accuracy
±3.5°F [±2°C] with standard curve fi t output voltage operation
across the selected instrument temperature range. Higher accuracy
available with factory calibrations.
ƒ Repeatability
±1.0°F [±0.6°C]
The above accuracy is based on liquid or slurry service and in
gas service with a minimum 1 SFPS [0.3 NMPS] velocity past the
sensing element or with the heater deactivated for temperature
sensing service only.
ƒ MTBF: 190 years
ƒ SIL: SIL-2 compliant, safe failure fraction (SFF) 82% to 84%
Factory Application-Specifi c Set-up and
Setpoint Calibration
Standard instrument factory default setting, unless otherwise
selected at order entry, will be as follows:
• 115 Vac input power for all FM Approved units. 230 Vac for all
other agency approval units.
• Dual SPDT alarms set for:
• Alarm No. 1: Preset for fl ow or level and to de-energize with
decreasing conditions.
• Alarm No. 2: Preset to de-energize for increasing temperature at
10 °F [5 °C] below the maximum instrument process tempera-
ture.
• Heater power at 0.25 watt on Model F or 0.75 watt on Model S.
• Calibration switch set at “operate.”
Factory calibration including set-up for specifi c service, process
fl uid and alarm conditions optionally available. Contact factory for
fl uid handling capabilities.
Nuclear Safety Certifi cation
FLT93 sensor elements were qualifi ed for harsh environment applica-
tions under the guidelines of iEEE-323, iEEE-344 and iEEE-382.
ƒ Radiation Exposure
Models S and F
2x10 8 rads
High Temperature
5x10 7 rads
Electronics Module [5294] qualifi ed for radiation harsh
5x10 5 rads
ƒ Seismic Level
Models S and F
3g ZPA’s
High Temperature
8g ZPA’s
Shipping Weight (approximate)
Integral: 8 lb [3.6 kg]
Remote: 13 lb [5.9 kg]