4.8 Specifications
4.8.1 Functional
Measurement principle Buoyancy – continuous displacement
utilizing a precision range spring
Input
Measured variable Level, determined by LVDT core
movement affected by buoyancy force
changes on continuous displacer
Physical Range Up to 120" (300 cm) based on
displacer length
Output (Digital ES II)
Type Analog 4 to 20 mA direct or reverse
acting with HART® digital signal
Range Analog 3.8 to 20.5 mA useable
Digital 0 to 100%
Loop Resistance (maximum) 545 Ohms @ 24 VDC
Fault 3.6 or 22 mA, selectable
Damping Adjustable 0-60 seconds
Sampling Rate Transmitter 15 times per second
Digital Meter 1.33 times per second
User Interface (Digital ES II)
Keypad 3 calibration buttons (up, down, enter)
Indication 3 LED’s on PCB for calibration and
functional checks
Digital communication HART Version 5.x compatible
Power (Digital ES II)
Measured at instrument 12 to 36 VDC
terminals
Output (Analog EZ)
Type Analog 4 to 20 mA direct
or reverse acting
Range Analog 4 to 20 mA useable
Loop Resistance (maximum) 480 ohms @ 24 VDC
Fault 22 mA
User Interface (Analog EZ)
Potentiometers Zero + Span controls
Action Direct/Reverse switch
Power (Analog EZ)
Measured at instrument 12 to 36 VDC
terminals
120 VAC, 50/60 Hz
240 VAC, 50/60 Hz
Housing
Material Polymer coated cast iron
Cable entry 1" NPT
39
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
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