APPLICATION
The LD33 general purpose anti-corrosion submersible pressure level transmitter provides continuous liquid level measurement up to 34.65’ (10.5m) of water column with a 4-20 mA signal output. Constructed of corrosion-resistant PTFE, the sensor is offered in three level measurement ranges. Select the appropriate model based on your tank height. For convenient installation with junction box termination, package your level sensor with the PVDF pressure sensor mounting kit. Each kit includes a junction box with terminal strip, mounting plug and liquid tight cable connector. The LD33 pressure level sensor is well suited for clean liquids compatible with PTFE and FEP such as acidic and caustic chemicals.
FEATURES
- Corrosion-resistant PTFE sensor body and FEP cable
- Rugged sensor designed for complete submergibility
- Maintenance-free vent tube with filter ensures accuracy
- Mounting kit for easy tank install and conduit termination
- Integral surge protection for lightning strikes or power surges
- Automatic temperature compensation for reliable measurement
PRICING
P/N | Description | From | |
---|---|---|---|
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LD33-S101 | GP anti-corrosion pressure level sensor, 11.55’ wc (5 psi), 40’ cable | $1,150.00 |
LD33-S111 | GP anti-corrosion pressure level sensor, 23.1’ wc (10 psi), 40’ cable | $1,200.00 | |
LD33-S121 | GP anti-corrosion pressure level sensor, 34.65’ wc (15 psi), 60’ cable | $1,250.00 |
COMPATIBLE ACCESSORIES
DOCUMENTATION
SPECIFICATIONS
Range: -S101: 0 to 5 psi (0.34 bar) or 0 to 11.55’ (0 to 3.5m) wc; -S111: 0 to 10 psi (0.69 bar) or 0 to 23.1’ (0 to 7.0m) wc; -S121: 0 to 15 psi (1 bar) or 0 to 34.65’ (0 to 10.6m) wc
Accuracy: ± 0.25% of full scale
Configuration: None, fixed span
Supply voltage: 11 to 28 VDC
Loop resistance: 900 Ohms max @ 30 VDC
Signal output: 4-20 mA, two-wire
Process temp.: F: 14º to 176º; C: -10º to 80º
Temp. comp.: Automatic
Burst pressure: 2 x full scale
Response time: 50ms
Sensor material: PTFE (polytetrafluoroethylene)
Enclosure rating: NEMA 6P (IP68)
Cable type: 2-conductor, shielded with filtered vent tube
Cable material: FEP (fluorinated ethylene propylene)
Cable length: -S101 & S111: 40’ (12.2m); -S121: 60’ (18.3m)
Classification: General purpose
Compliance: CE, RoHS
MOUNTING KIT

The pressure mounting kit makes installation easy. Route the sensor cable through the liquid tight connector, drop the sensor through the tank fitting, and terminate in the junction box.
