Mazurczak 400B19EN01, Operating Instructions Manual, Page: 24 / 28

7 Diagnostics
24/28 Product codes 400B19EN01 | 401B19EN01
ENR 300 level controller | ETS 100 and ETS 200 signalling devices
Changeover conditions of the "RELAY 1" LED with ENR 300 level controller
The status of the "RELAY 1" LED is based on a logical AND operator (&). The
status remains in force until one of the changeover conditions is met:
■
Both switching probe rods(E2 & E1) are wetted.
■
Both switching probe rods (E2 & E1) are not wetted.
Example:
Both switching probe rods(E2 & E1) are wetted.
The "RELAY 1" LED is lit.
When only switching probe rod E1 is wetted, the "RELAY 1" LED is still lit until both
switching probe rods (E1 & E2) are no longer wetted.
7.3.2 Devices with float switches
The red LEDs indicate whether or not the reed switch is closed.
Status "RELAY" LED
"RELAY 1" LED
"RELAY 2" LED
ETS 100 signalling device
ETS 200 signalling device
ENR 300 level controller
LED lit Reed switch closed
LED off Reed switch open