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Mercoid Series PBLT2 & PBLTX

Submersible Level Transmitter — Perfect for Sludge and Slurries

Mercoid Series PBLT2 Submersible Level Transmitter

Lightning Protected • Intrinsically Safe Option

The Mercoid Series PBLT2 and PBLTX Submersible Level Transmitters are manufactured for years of trouble-free service in the harshest applications. Both measure the height of liquid above the position in the tank referenced to atmospheric pressure. The transmitter consists of a piezoresistive sensing element encased in a 316 SS housing. Perfect for wastewater and slurry applications with a large diameter, non-clogging, damage-resistant 316 SS diaphragm seal.

The PBLT2 incorporates lightning and surge protection utilizing dual arrestor technology grounded to case, eliminating both power supply surges and lightning ground strike transients. The PBLTX is UL approved intrinsically safe for use in hazardous locations when used with the proper barrier.

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Key Features

Excellent chemical compatibility with 316 SS construction and ETFE cable
Lightning and surge protection on PBLT2 models (dual arrestor technology)
Maintenance-free vent filter prevents particulate and moisture ingress
UL approved intrinsically safe on PBLTX models
Large diameter, non-clogging, damage-resistant 316 SS diaphragm seal
270 lb tensile strength shielded and vented cable
Automatic atmospheric pressure compensation via ventilation tube

Specifications

Service
Compatible liquids.
Wetted Materials
316 SS, 316L SS, Epoxy; Cable: ETFE or polyurethane.
Accuracy
±0.25% full scale (includes linearity, hysteresis, and repeatability).
Temperature Limit
PBLT2: 0 to 200°F (-18 to 93°C); PBLTX: 0 to 176°F (-18 to 80°C).
Compensated Temp Range
PBLT2: 0 to 180°F (-18 to 82°C); PBLTX: 0 to 176°F (-18 to 80°C).
Thermal Effect
±0.02% FS/°F.
Pressure Limit
2× full scale.
Power Requirement
PBLT2: 13 to 30 VDC; PBLTX: 10 to 28 VDC.
Output Signal
4 to 20 mA DC, two-wire.
Response Time
50 ms.
Loop Resistance
900 Ω.
Electrical Connection
Wire pigtail.
Mounting Orientation
Suspended in tank below level being measured.
Weight
4.3 lb (2.0 kg).
Electrical Protection
PBLT2: Lightning and surge protection; PBLTX: None.
Agency Approvals
PBLT2: None; PBLTX: CE, cULus intrinsically safe — Class I, Div. 1, Groups A, B, C, D; Class II, Div. 1, Groups E, F, G; Class III, Div. 1.

Options

Intrinsically Safe: Change model number from PBLT2 to PBLTX.

Custom Ranges or Cable Lengths: Contact factory for non-standard configurations.

Popular Models

ModelRangeCable LengthCable Type
PBLT2-10-4010 psi (23.09 ft wc)40 ft (12.2 m)ETFE
PBLT2-10-40-PU10 psi (23.09 ft wc)40 ft (12.2 m)Polyurethane
PBLT2-10-6010 psi (23.09 ft wc)60 ft (18.3 m)ETFE
PBLT2-10-60-PU10 psi (23.09 ft wc)60 ft (18.3 m)Polyurethane
PBLT2-10-7010 psi (23.09 ft wc)70 ft (21.3 m)ETFE
PBLT2-10-70-PU10 psi (23.09 ft wc)70 ft (21.3 m)Polyurethane
PBLT2-10-8010 psi (23.09 ft wc)80 ft (24.4 m)ETFE
PBLT2-10-80-PU10 psi (23.09 ft wc)80 ft (24.4 m)Polyurethane
PBLT2-10-10010 psi (23.09 ft wc)100 ft (30.5 m)ETFE
PBLT2-10-100-PU10 psi (23.09 ft wc)100 ft (30.5 m)Polyurethane
PBLTX-10-4010 psi (23.09 ft wc)40 ft (12.2 m) — Intrinsically SafeETFE
PBLTX-10-6010 psi (23.09 ft wc)60 ft (18.3 m) — Intrinsically SafeETFE

Additional ranges (15 psi, 20 psi, 30 psi, 50 psi, 100 psi) and cable lengths available. Contact us for full model list.

Ready to order or need a custom configuration?

Contact our team for pricing, availability, and custom cable lengths or ranges.

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