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2-wire, Loop-Powered, ±0.25% Accuracy
 
Series PLT Piezoresistive Level Transmitters provide reliable measurement and control of process levels by sensing the hydrostatic pressure in a tank. The loop-powered level transmitter delivers a 4 to 20 mA output signal proportional to hydrostatic pressure and specific gravity of the fluid for indicating, recording or control purposes. Easily accessible zero and span potentiometers make calibration in the field quick and simple. Units are equipped with EMI and reverse polarity protection. See Dimensions
SPECIFICATIONS
Service: Compatible liquids.
Wetted Parts: 316 SS and Teflon®.
Accuracy: ±0.25% of span.
Repeatability & Hysteresis: ±0.10% of full range.
Temperature Limits: 0 to 200°F (-18 to 93°C).
Compensated Temperature Range: 0 to 180°F (-18 to 82°C).
Pressure Limit: 3 times the full range.
Power Requirements: 18 to 30 VDC.
Output Signal: 4 to 20 mA, 2-wire.
Zero and Span Adjustments: Zero adjustment for elevation compensation: 25%.
Loop Resistance: 1000 Ohms at 24 VDC.
Electrical Connections: Screw terminal.
Conduit Connection: 1/2" female NPT.
Process Connection: 2" or 3" 150# flange, 3" 300# flange. 1/4", 1/2", or 3/4" female NPT.
Enclosure Rating: Weatherproof and explosion-proof, NEMA 4,7, & 9. Class I, Div. 1 & 2, Groups B, C & D; Class II, Div. 1 & 2, Groups E, F and G.
Mounting Orientation: Any position.
Weight: NPT Connection: 7.95 lb (3.61 kg), 2" Flange Connection: 11.85 lb (5.38 kg).
Fill Solution: Silicone oil.
Vibration Limits: ±1 g, 10 to 200 Hz.
Options: See process connection for other connection options. 10 psi (.69 bar) up to 500 psi (34.47 bar) ranges.
 
APPLICATIONS
Monitor and control levels of water, chemicals, lubricants, or paints in vented tanks. Ideal for fluids with suspended solids such as wastewater and slurries.
 
POPULAR MODELS
Model Number Range PSIG (Bar) Tank Ht. Feet (Meters) Mounting
 PLT1040  0 to 1 (0.07)  2 (.61)  1" female NPT
 PLT1050  0 to 1 (0.07)  2 (.61)  2" Flange
 PLT2040  0 to 5 (0.34)  10 (3.05)  1" female NPT
 PLT2050  0 to 5 (0.34)  10 (3.05)  2" Flange
 
 
 
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