Level controller with LCD display Commander™ LI90
programmablefor storage tanks

level controller with LCD display
level controller with LCD display
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Characteristics

Type
with LCD display, programmable
Applications
for storage tanks

Description

The general purpose level controller displays engineering units with four 4-20 mA continuous level sensor inputs and 6 programmable relays. Select from one of three run configurations including multi-tank with 4 level sensor inputs and 4 relays; or pump control with 1 level sensor input and 6 relays for lift stations in simplex (one pump) or duplex (two pumps) level control modes; or differential level with 2 level sensor inputs and 4 relays for municipal screen or rake control. Relays can be configured on a single set point (high or low level alarm) or latched on two set points for automatic fill or empty pump or valve control with selectable time delay. The graphic LCD display indicates span and relay status for each input channel. The optional MicroSD card enables data-logging storage and retrieval. FEATURES Multi-tank controller with three run mode configurations Graphic LCD display indicates channel span and relay status Easy user configuration via the push button display module DIN enclosure with NEMA 4X faceplate and shallow case Simulation for configuration testing and troubleshooting Data logging and retrieval via the optional MicroSD card Display type: LCD, graphic Display pixels: 128 x 64 Display units: Engineering Display output: 0 to 999999 LCD indication: Relay status Configuration: Push button Backlight: Yes Memory: Non-volatile Opt. memory: MicroSD card (up to 1 GB) Linearization: Tank shapes Sensor inputs: -1001: (4) 4-20 mA, -2001: (2) 4-20 mA Supply voltage: 10-30 VDC Contact type: -1001: 6 SPST relays, -2001: No relays Consumption: 130 @ 24 VDC Contact rating: 3A @ 30 VDC or 250 VAC resistance load (-1001 only)

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