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Mercoid Series
PLT
Piezoresistive Level Transmitter
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 4-20 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 protections.

Model Number
Range
Mountain
PLT1010
PLT1020
PLT2010
PLT2020
0 to 2 psig
0 to 2 psig
0 to 10 psig
0 to 10 psig
1" NPT(F)
2" Flange
1" NPT(F)
2" Flange

PHYSICAL DATA
Accuracy:   ±0.25% of calibrated span
Repeatability & Hysteresis:   ±0.10% full scale
Overrange:   300% upper range limit
Supply Voltage:   18 to 40 VDC
Output:   4-20 mA, 2-wire
Maximum Loop Resistance:   1000W
Zero Elevation:   25% standard
Zero Suppression:   25% standard
Vibration Limits:   ±1 g. 10 to 200 Hz
Temperature Compensation:   0 to 180°F (-18 to 82°C)
Operating Temperature Range:   0 to 200°F (-18 to 93°C)
Fill Solution:   Silicone oil
Wetted Parts:   304 stainless steel
Housing:   NEMA 4, 7 & 9. Explosion-proof; Class I, Groups B, C, D; Class II, Groups E, F, G; Class III
Conduit Opening:   ½" NPT female

APPLICATIONS
Monitor and control levels of water, chemicals, lubricants, or paints in vented tanks.

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