20
As an alternative:
►
Select [ASP] and set the measured value at which 4 mA is provided
(20 mA at [OU2] = [InEG])�
►
Select [AEP] and set the measured value at which 20 mA is provided
(4 mA at [OU2] = [InEG])�
Minimum distance between ASP and AEP = 25 % of the final value of the
measuring range (turn-down 1:4)�
9.4 User settings (optional)
9.4.1 Carry out zero point calibration
►
Select [COF] and set a value between -5 % and 5 % of the final value of
the measuring range� The internal measured value "0" is shifted by this
value�
As an alternative:
automatic adjustment of the offset in the range 0 bar (0 Pa) ± 5 %�
►
Make sure that no pressure is applied to the system�
►
Touch [Mode/Enter] until [tCOF] appears�
►
Touch [Set] and keep it touched�
> The current offset value (in %) flashes briefly�
> The current system pressure is displayed�
►
Release [Set]�
►
Touch [Mode/Enter] briefly (= to confirm the new offset value)�
9.4.2 Set delay time for OUT1
[dS1] = switch-on delay / [dr1] = switch-off delay�
►
Select [dS1] or [dr1] and set a value between 0�1 and 50 s (at 0�0 the
delay time is not active)�
9.4.3 Set switching logic for OUT1
►
Select [P-n] and set [PnP] or [nPn]�
9.4.4 Set damping for the switching signal
►
Select [dAP] and set a value between 0�01 and 30 s�
dAP value = response time between pressure change and change of the
switching status in seconds�
[dAP] influences the switching frequency: f
max
= 1 ÷ 2dAP�
[dAP] also has an effect on the display�
