5
UK
4.2 Pressure monitoring / switching function
OUTx changes its switching state if it is above or below the set switching limits
(SPx, rPx)� The following switching functions can be selected:
•
Hysteresis function / normally open: [OUx] = [Hno] (→ fig. 1).
•
Hysteresis function / normally closed: [OUx] = [Hnc] (→ fig. 1).
First the set point (SPx) is set, then the reset point (rPx) at the requested
distance�
•
Window function / normally open: [OUx] = [Fno] (→ fig. 2).
•
Window function / normally closed: [OUx] = [Fnc] (→ fig. 2).
The width of the window can be set by means of the distance between SPx and
rPx� SPx = maximum value, rPx = minimum value�
1
2
P = system pressure; HY = hystereris; FE = window
4.3 Pressure monitoring/ analogue function
The analogue signal can be set�
• [OU2] defines whether the set measuring range is provided as a 4���20 mA
signal ([OU2] = [I]) or a 0���10 V signal ([OU2] = [U])�
• By setting the parameter ASP you define the measured value at which the
output signal is 4 mA / 0 V�
• By setting the parameter AEP you define the measured value at which the
output signal is 20 mA / 10 V�
Minimum distance between [ASP] and [AEP] = 25 % of the final value of the
measuring range (turn down 1:4)�
