Erma Electronic SSI 3020, Instruction Manual, Page: 9 / 24

6. Pushbuttons- and LED-functions
The re are four push but tons in the front. The se push but tons can have dif fe rent func ti -
ons. The func ti ons of the push but tons can be used for pro gram ming and for ser vice.
6.1. Function of buttons and LEDs
LED 3 Description
off
encoder- or hold value is displayed
green/flashs
programming mode is activated
LED 1 and LED 2 are not used and have no func tion
ERMA-Electronic GmbH 9
6. Pushbuttons- and LED-functions
ERMA-METER
P
LED1
LED2
LED3
mm
6-decades display
Insertion shield
for dimensions
LED2
LED1
LED3
Programming button
function bottons