Configuration - Burkert 8205 Manuel D'utilisation

4 CONFIGURATION

4.3.4 Relays threshold selection
Relay 1:
Select the entry to be controled (pH or temperature).
Enter both thresholds of the selected relay 1- and 1+.
Options to invert the relay (NO/NC, and set a delay between 0 and 999 seconds are avai-
lable.
The delay prevents the relay from operating too fast, e.g. when time for homogenization is
required (measurements in tanks with agitator). If the pH(or T°) exceeds a threshold, the
transmitter awaits the delay before activating the relay. No alarm will be provided, if the
measured pH(or T°) returns to a normal value before the delay is elapsed.
The following condition must be maintained 1- ≤ 1+;
and ∆ pH> 0,2 (or ∆ T° > 2°C) .
Contact
Invert no
closed
open
1-
Contact
Invert yes
closed
open
1-
1+
Delay
1+
pH
pH
Delay
E-29-
PH TRANSMITTER 8205
closed
open