Page 188 - EPR Catalog 2015

Liquid level monitors and controls
Application examples

Application examples CM-ENN drain
fill
1SVC 110 000 F 0165
2 1SVC 110 000 F 0166

For commissioning, set both potentiometers (response sensitivity = R value and ON-delay = time value) to the minimum value
(5) and select a suitable resistance range (sector). After all electrodes have been wetted by the liquid being monitored, turn the
sensitivity potentiometer towards maximum value (100) until the relay energizes. If the relay does not energize, select a higher
⏲ value (sector) on the device and proceed as before. Then it has to be checked if the relay de-energizes properly as soon as
the electrodes C and MIN are no longer wet. Liquid levels higher than the maximum level electrode can be obtained by setting
an ON-delay (TA = 0.1...10 s).
Liquid levels lower than the minimum level electrode can be obtained by setting an OFF-delay time (TR = 0.1...10 s), e.g. for
emptying tanks.

2/121 ABB | Catalog Electronic Products and Relays 2015 | 2CDC 110 004 C0210