Feig Electronic VEK MNE1 User Manual

Manual VEK MNE1 / VEK MNE2
FEIG ELECTRONIC GmbH 09/2015 15
GBR
Typically, the sensitivity setting is adjusted in large steps with the response threshold selected to be no high-
er than 640.
In applications where it is necessary to distinguish between vehicles, values of settings higher than 640 and
fine adjustments can be utilized. A large loop (e.g. 10.0 m x 2.5 m) permits selective detection of busses
when the threshold value is set correspondingly high (> 1000).
11.2 Hysteresis, Off Threshold
To avoid the busy signal dropping out from time to time, i.e. when vehicles with a high base are utilized as
articulated buses, trams, trucks with trailers, etc., it is possible to change the switching hysteresis. Uninter-
rupted detection of critical vehicles is then possible even at low sensitivity.
Loop state with 25% of drop-out threshold
Drop-out threshold
25%
Drop-out threshold 75%
Response threshold
Loop state with 75% of drop-out threshold
Detuning by vehicle
free
occupied
fre
e
occupied
t

The service program displays the calculated off threshold that results based on the selected response
threshold and the percentage hysteresis.
DIP USB Description
20% Lowest off threshold 20% of response threshold value (boost)
:
75%
(factory setting)
:
80% Highest off threshold 80% of the response threshold
Examples: Response threshold 160 (step medium-low)
Hysteresis 75%  off threshold: 0.75 * 160 = 120
Hysteresis 20%  off threshold: 0.20 * 160 = 32
The hysteresis settings for the off threshold can only be changed in the service program!

Feig Electronic VEK MNE1 Specifications

General

Brand	Feig Electronic
Model	VEK MNE1
Category	Security Sensors
Language	English