PI17xx
Electronic pressure sensor
26
u
Approach the desired maximum system pressure in the installation and keep it constant.
u
Select [tAEP] with [Enter].
u
Press [▲] or [▼] until [----] is displayed.
u
Confirm [----] with [Enter].
w
The current system pressure is defined as end value for the analogue signal.
[tAEP]
ASP / AEP can only be set within defined limits (
Ò
Setting ranges). If settings are made with an invalid
pressure value, [Fail] and [UL] are displayed alternately for 30 s. The time can be cancelled by
pressing a key, the ASP value / AEP value is not changed in this case.
Alternatively:
u
Select [ASP] and set the measured value at which 4 mA is provided (20 mA if [OU2] = [InEG]).
u
Select [AEP] and set the measured value at which 20 mA is provided (4 mA if [OU2] = [InEG]).
Minimum distance between ASP and AEP = 20 % of the final value of the measuring range (turn-
down 1:5).
[ASP]
[AEP]
9.4 User settings (optional)
9.4.1 Zero point calibration and adjustment of final value of the measuring
range
u
Select [coF] and set a value between -5%...+5%. The internal measured value "0" is shifted by this
value.
[coF]
Alternatively: automatic adjustment of the offset in the range 0 bar ± 5 %.
u
Make sure that no pressure is applied to the system.
u
Press [Enter] until [tCOF] appears.
u
Press [▲] or [▼] and keep it pressed.
w
The current offset value (in %) flashes briefly.
w
The current system pressure is displayed.
u
Release [▲] or [▼].
u
Briefly press [Enter] (= to confirm the new offset value).
[tcoF]
u
Select [CGA] and set a final value of the measuring range between -5% ...+5%. The internal final
value of the measuring range “VMR” is shifted by this value.
[CGA]
9.4.2 Define incorrect behaviour of the outputs
u
Select [FOU1] and set the value:
• [On] = output 1 switches ON in case of an error.
• [OFF] = output 1 switches OFF in case of an error.
u
Select [FOU2] and set the value:
• [On] = output 2 switches ON in case of a fault, the analogue signal goes to the upper final value.
• [OFF] = output 2 switches OFF in case of a fault, the analogue signal goes to the lower final value.
[FOU1]
[FOU2]
9.4.3 Set delay time for the switching outputs
[dS1] / [dS2] = switch-on delay for OUT1 / OUT2.
[dr1] / [dr2] = switch-off delay for OUT1 / OUT2.
u
Select [dS1], [dS2], [dr1] or [dr2] and set a value between 0.1 and 50 s (at 0.0 the delay time is not
active).
[dS1]
[dr1]
[dS2]
[dr2]
9.4.4 Set output logic for the switching outputs
u
Select [P-n] and set [PnP] or [nPn].
[P-n]
