Output Setting - Endress+Hauser Ceraphant T PTC31 Operating Instructions Manual

Commissioning
Base Basic settings
!
Note!
The procentage specification applies to the upper range limit.
6.3

Output setting

• Hysteresis function: The hysteresis function enables two-point control via a hysteresis.
Depending on the pressure p, the hysteresis can be set via the switch point SP and the
switch-back point RSP.
• Window function: Enables the monitoring of a process pressure range.
The hysteresis of the switch points SP and RSP is less than 0.1 % URL. Under rough
EMC-conditions quick switching is possible if the measured value is near to SP or RSP. Setting
a damping of 0.1 s will avoid this effect.
• NO contact or NC contact: This switch function is freely selectable.
• Factory setting (if no customer-specific settings have been ordered):
Switch point SP 1: 45 %; Switch-back point RSP 1: 44.5 %
Switch point SP 2: 55 %; Switch-back point RSP 2: 54.5 %
Analog output: LRV 0 %; URV 100 %
• Range of adjustment: LRL = Lower Range Limit; URL = Upper Range Limit;
LRV = Lower Range Value; URV = Upper Range Value
p
SP
RSP
1
0
1
0
Fig. 11: a) Hysteresis function
b) Window function
➀ Windows NC contact switch status
➁ Hysteresis NC contact switch status
➂ Windows NO contact switch status
➃ Hysteresis NO contact switch status
SP switch point
RSP switch-back point
16
a
t
4
2
Ceraphant T PTC31, PTP31, PTP35
b
p
SP
RSP
3
1
t
1
0
1
0
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Endress+Hauser