The general purpose AC powered level controller displays engineering units with one 4-20 mA level transmitter, two programmable relays and an isolated 4-20 mA repeater. Relay one is configurable on a single set point. Relay two can be configured on a single set point or latched on two set points for automatic fill or empty control in simplex mode. Select this DIN rail mount controller for use with general purpose two or three-wire level transmitters. For field mount installation, add a single or double NEMA box.


  • Bright LED display indicates level in custom engineering units
  • Fail-safe relay control of pumps or valves with 0-60 second delay
  • Easy push button configuration of span, display and relay set points
  • 35 mm DIN rail mount PP enclosure with removable terminal strips
  • Invert switch changes relay state from NO to NC without rewiring
  • Bar graph display indicates the percentage of measured span


P/N Description From
LC52-1001 Remote level controller $370.00
LM92-1202 Single NEMA box, windowed, 35mm rail, PC $405.00
LM92-2202 Double NEMA box, windowed, 35mm rail, PC $460.00



Display type: LED, 3.5 digit

Display units: Engineering

Display output: 0 to 999

LED indication: Power & relay

LED bar graph: Span and set points

Memory: Non-volatile

Security: Set point lock out

Configuration: Push button

Alarm indication: Amber: < 4mA, Red: > 20 mA

Sensor input: (1) 4-20 mA

Supply voltage: Selectable 120 / 240 VAC, 50-60 Hz

Sensor supply: 24 VDC @ 1.5 watts

Loop power: 4-20 mA, 18 VDC

Consumption: 5 watts maximum

Contact type: (2) SPDT relays (1 latching)

Contact rating: 250 VAC @ 10A

Contact output: Selectable NO / NC

Contact latch: Selectable ON / OFF

Contact delay: 0-60 seconds

Repeater output: 4-20 mA, 12-36 VDC

Ambient temp.: F: -40° to 158°, C: -40° to 70°

Enclosure type: 35mm DIN rail (EN 50 022)

Enclosure mat.: PP, UL94VO

Classification: General purpose

Compliance: CE