KRAL BEM 300 Series, Operating Instructions Manual

Page: 31 / 48

Operating Instructions OIE 15en Edition 2019-12 HW 2.0/SW 2.0 31
Menu 2: Settings
Menu description
1. Press SET.
The password prompt is displayed.
2. Enter the password using the arrow keys, see
"General operating steps", page 25.
3. Press SET.
The password protection is deactivated: It is
possible to change the settings.
The password protection is reactivated auto-
matically after approx. 30 minutes.
If the password is not active, "No" is shown in the
display. The password can be activated at any
time again by pressing the SET and ARROW UP
or ARROW DOWN keys. This prevents unwan-
ted changes by third parties.
2.02 Select unit rate
The unit of the rate can be selected in accor-
dance with the requirements from a list.
2.03 Select unit total
The unit of the total can be selected in accor-
dance with the requirements.
2.04 Select unit density
The unit of the density can be selected in accor-
dance with the requirements.
2.05 Function analog output
The function of the analog output can be speci-
fied here. Either 1 4–20 mA output or 1 0–10 V
output is available.
2.06 Scale analog output 1
Scaling of the analog output allows the maximum
value to be set. The maximum value is set slightly
higher than the highest possible occurring flow
rate.
2.07 Averaging analog output
In the case of fluctuating flow rates the averaging
allows a stable value at the analog output.
Averaging can be adapted to the requirements
with values between 1 and 10000. However,
rapid changes are only displayed with a time
delay.
Examples of reaction time for a change of 99,9 %
of the actual frequency jump:
Averaging Reaction time
0 or 1 0.02 s
2 0.04 s
9 0.18 s
10 1.5 s
500 75 s
1000 150 s
10000 1500 s