The CM-ENS.31P is a relay from the CM family for level monitoring and level control. The rated control supply voltage is 24 - 240 V AC/DC. Output: 2 changeover contacts (250 V / 4A). It monitors and controls levels and mixing ratios of conductive liquids. It is used for filling and emptying applications, for dry-running protection of pumps and for signaling the status of the monitored level. The sensitivity and the operating principle can be adjusted using potentiometers on the front. In addition, the delay time, selectable time functions: switch-on delay or switch-off delay, can be set from 0.1 to 10 s. Various electrodes, as well as a sealable transparent cover to protect against unauthorized adjustment of the settings are available as accessories. The device has maintenance-free and easy-to-use push-in terminals.
| Property | Value |
| Number of contacts as changeover contacts: | 2 |
| Design of the electrical connection: | Spring-loaded connection |
| Max. permissible pick-up delay time: | 30 s |
| Max. permissible release delay time: | 30 s |
| Physical measuring principle: | conductive |
| Voltage type for actuation: | AC/DC |
| Width: | 22.5 mm |
| Height: | 85.6 mm |
| Depth: | 103.7 mm |
| With removable terminals: | no |
| Number of electrode inputs: | 3 |
| Response sensitivity adjustable: | yes |
| Rated control supply voltage Us at AC 50 Hz: | 24 to 240 V |
| Rated control supply voltage Us at AC 60 Hz: | 24 to 240 V |
| Rated control supply voltage Us at DC: | 24 to 240 V |
| Cascadable: | yes |
