LC90, LC91 & LC92 Series Controllers are isolation level controllers designed for use with intrinsically safe devices. The controller family is offered in three configurations for pump and valve control. The LC90 Series features a single 10A SPDT relay output and can accept one level sensor as an input. The LC91 Series features a single 10A SPDT latching relay output and can accept one or two level sensor(s) as an input. This package is ideal for the automatic filling or emptying of a tank. The LC92 Series features both a single 10A SPDT and a single 10A Latching SPDT relay. This package allows for a three‐input system that can perform an automatic operations (fill or empty) and an alarm operation (high or low). The LC92 series can also be a two‐input controller that can perform dual alarms (2‐high, 2‐low or 1‐high, 1‐low). Package either controller series with level switch sensors and fittings.
The document provides user instructions for the LC90, LC91, and LC92 Series Remote Level Controllers manufactured by Flowline Inc. These isolation level controllers are designed specifically for use with intrinsically safe devices in hazardous locations to control pumps and valves.
The manual details the features of three distinct configurations: the LC90 series for single input high or low alarms, the LC91 series for automatic filling or emptying with latching relay outputs, and the LC92 series which supports both automation and alarm operations. It includes safety precautions regarding intrinsically safe installations, wiring diagrams, component specifications, and troubleshooting steps.
| Supply voltage | 120 / 240 VAC, 50 - 60 Hz. |
|---|---|
| Consumption | 5 Watts max. |
| Contact rating | 250 VAC, 10A |
| Contact delay | 0.15 to 60 seconds |
| Enclosure material | Polypropylene (PP) |
The maximum power consumption for the controller is 5 Watts.
Yes, an invert switch changes the relay state from NO to NC without rewiring.
The contacts are rated for 250 VAC at 10A.