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Series-FBLT
Flush Tip Submersible Level Transmitters, Piezoresistive, 316 SS
- Long operating life with a non-clog flush diaphragm tip for harsh applications
- Eliminates particulate or water droplets from entering the transducer using maintenance-free filter
- Suits harsh environments with choice of polyether polyurethane or ETFE cable materials for excellent chemical compatibility
- Increased life with lightning and surge protection utilizing dual arrestor technology, grounded to case, eliminating both power supply surges and lightning ground strike transients (surge protection is not guaranteed and is not covered by warranty)
- Meet application requirements with narrow body design allows the FBLT to fit into stilling wells and narrow installations
- Unit holds up in aggressive fluids with robust FKM fluoroelastomer diaphragm that is PTFE coated for a stick-resistant surface
- Avoid product leaks typically cause by oil or grease with diaphragm cavity that is filled with gel
- Flexible installation options with NPT connection to rigidly install in a pipe/conduit or use the A-625 hanging loop to attach a chain to remove from the installation
Series-FBLT
From
TWD
41,392
Product Overview
- Applications Oil
- Compensated Temperature, Min 32 °F
- Electrical Connection Pigtail Leads
- Electrical Output 4 to 20 mA
- Loop Resistance 1000 Ω @ 30 Vdc max
- Media Compatibility Consult Factory
- Mounting Suspended Below Point Being Monitored
- Output Detail 4 to 20 mA DC, 2-wire
- Output Signal Current
- Proof Pressure 2x Full Scale
- Protection Surge/Lightning Protected Per EN61000-4-5, Class 5
- Requires Factory Media Review true
- Response Time <50 ms
- Series ID Series-FBLT
- Supply Power Type DC
- Thermal Effect ± 0.0075%/°F
Supported Applications
The Dwyer Series FBLT Flush Tip Submersible Level Transmitters are designed for continuous level measurement in harsh applications, including sewage lift stations. The narrow body design allows installation into stilling wells and confined spaces where standard transmitters may not fit.
- Sewage lift stations
- Sludge and slurries
- Tanks and pits requiring reference to atmospheric pressure
Operating Conditions & Performance
The Series FBLT utilizes a piezoresistive sensing element with a flush diaphragm tip. The transmitter measures the height of liquid above its mounting position, referencing atmospheric pressure via a ventilation tube in the cable protected by a maintenance-free filter.
- Accuracy: ±0.25% FS (absolute); ranges 4.3 to 4.9 psi (10 to 11.54 in. w.c.) are ±0.30% FS
- Operating Temperature Ambient: 32 to 140°F (0 to 60°C)
- Operating Temperature Process: -4 to 176°F (-20 to 80°C)
- Response Time: < 50 ms
- Pressure Rating: 2x range
- Power Supply: 10-33 VDC
- Load Resistance: 1000 Ω @ 30 VDC
Configuration Options
The series offers configurable options for construction, output, reference type, cable material, range units, and length. The body is constructed of 316 SS with a PTFE coated FKM fluoroelastomer diaphragm designed to resist sticking in aggressive fluids.
- Output Signal: 4-20 mA DC 2-wire
- Cable Materials: Polyether polyurethane or ETFE (for corrosive applications)
- Range Units: Feet of water column, meters of water column, psi
- Mounting Options: Suspended below point being monitored; optional 1/2" NPT connection for rigid installation in pipe/conduit
Accessories and Special Features
- A-297 Desiccant Filter: Attaches to the vent tube to remove humidity; changes color to indicate saturation.
- A-625 Hanging Loop: 316 SS cable hanger used with the NPT option for attaching a chain to pull the unit out of installation.
- Protection Features: Surge and lightning protection per EN61000-4-5, Class 5; gel-filled diaphragm cavity (non-leaking).
Key Product Differences
Variants differ by range value, cable length, and material selection. The model number guide follows the format: FBLT - <Construction> - <Circuit Options> - <Body Material> - <Accuracy> - <Output> - <Reference> - <Cable Material> - <Range Unit> - <Range Value> - <Cable Length> - <Options>. For example, FBLT-2SC-IVPF-30-50-NIST indicates a flush tip construction with surge protection (circuit option 2), 316 SS body, ±0.25% accuracy, 4 to 20 mA output, vented reference, polyurethane cable, and NIST traceable certificate.
- Cable Lengths: Available in various lengths; specific variants include 40', 50', and 60' options depending on the model configuration.
- Range Values: Documented ranges include 8.66 psi (20" w.c.), 10 psi, 12.99 psi (30" w.c.), 15 psi, and up to 20 psi (196.85 in. w.c.).
PDFs & Manuals
