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Mercoid Series FBLT

Flush Tip Submersible Level Transmitter — Perfect for Sludge and Slurries

Mercoid Series FBLT Flush Tip Submersible Level TransmitterMercoid Series FBLT with NPT Option

Non-Clogging Flush Tip • Lightning Protected • ±0.25% Accuracy

The Mercoid Series FBLT Submersible Level Transmitter is designed with a flush diaphragm tip that will not clog in harsh applications such as sewage lift stations. The narrow body design allows the FBLT to fit into stilling wells and narrow installations. The FBLT features a robust FKM fluoroelastomer diaphragm that is PTFE coated for a stick-resistant surface that will hold up in aggressive fluids. The diaphragm cavity is filled with a gel that will not leak out, unlike oil or grease used by competitors.

The unit measures the height of liquid above the position it is mounted in a tank or pit in reference to atmospheric pressure. An optional NPT connection allows rigid installation in a pipe or conduit, or attachment of the A-625 hanging loop for chain retrieval.

Key Features

Flush diaphragm tip will not clog in sewage lift stations
Narrow body fits into stilling wells and narrow installations
Robust FKM fluoroelastomer diaphragm with PTFE coating
PTFE-coated stick-resistant surface for aggressive fluids
Gel-filled diaphragm cavity — will not leak like oil/grease
316 SS body with polyurethane or ETFE cable
Optional NPT connection for rigid installation
Lightning and surge protection standard
Optional A-297 desiccant filter for extra humidity protection
A-625 hanging loop available for chain attachment
CE approved

Specifications

Service
Compatible liquids.
Wetted Materials
Body: 316 SS; Cable: Polyether polyurethane or ETFE; Diaphragm: PTFE-coated FKM fluoroelastomer; Label: Polyethylene polyamid.
Accuracy
±0.25% FS (10 ft wc range is ±0.30% FS).
Temperature Limits
-4 to 176°F (-20 to 80°C).
Compensated Temp Limits
32 to 140°F (0 to 60°C).
Thermal Effect
±0.0075%/°F (±0.0135%/°C).
Pressure Limit
2× range.
Power Requirements
10 to 33 VDC.
Output Signal
4 to 20 mA DC 2-wire.
Response Time
< 50 ms.
Max Loop Resistance
1000 Ω @ 30 VDC.
Electrical Connections
Wire pigtail.
Mounting Connection
Suspended below point being monitored.
Electrical Protection
Surge/lightning protected per EN61000-4-5, Class 5.
Weight
Body: 0.3 lb (0.136 kg); Cable: 0.037 lb (0.009 kg) per foot.
Agency Approval
CE.

Popular Models

ModelRangeCableAccuracy
FBLT-10-4010 ft wc40 ft polyurethane±0.30% FS
FBLT-10-40-ETFE10 ft wc40 ft ETFE±0.30% FS
FBLT-20-4020 ft wc40 ft polyurethane±0.25% FS
FBLT-20-40-ETFE20 ft wc40 ft ETFE±0.25% FS
FBLT-30-5030 ft wc50 ft polyurethane±0.25% FS
FBLT-50-7050 ft wc70 ft polyurethane±0.25% FS
FBLT-100-120100 ft wc120 ft polyurethane±0.25% FS

Custom ranges and cable lengths available. ETFE cable option for corrosive applications. Contact us for full model list.

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