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EN
ISOM K-20 - 551805A - SOCOMEC
7. STATUS LEDS, BUTTONS AND AUTO-ADDRESSING
7.1. Status LEDs and buttons
These LEDs can be used to find out the status of the device at any time. Use specific buttons to go straight to the devices'
main functions.
7.1.1. K-20
Power supply
(green)
Insulation alarm
ALARM 1 (amber)
Insulation alarm
ALARM 2 (amber)
Manual RESET button (short
press) / manual TEST (long
press)
"QUICK-ACCESS" button
(short-press) to scroll main
screens for Insulation, min Rf
value for alarm thresholds, leak
capacity / HOME (long-press)
to show menus
Hotkeys (3x)
OK button (short press) / Back
(long press)
LED status
Constant
Flashing
Pulsing
ON
Working
1 second at startup
ALARM 1
Presence of an alarm due to
exceeding the low threshold
ALARM1
System alarm (e.g. network
connection error)
ALARM 2
Presence of an alarm due to
exceeding the low threshold
ALARM2
System alarm (e.g. network
connection error)
7.1.2. Autotest
In order to ensure a high degree of safety when measuring the insulation and in operation, ISOM K-20 offers advanced
autotesting functions.
After powering on the devices, all their internal measurement functions as well as the data memories and connections to the
network and the PE protection conductor are tested.
You can follow the progress of the autotest option onscreen (TEST message).
You can also start the autotest at any time during use by pressing the TEST button.
The ALARM 1 and ALARM 2 signalling relays can be configured to switch if the auto-test fails.
