Restoring Factory Settings - Endress+Hauser Liquicap M FTI51 Operating Instructions Manual

Liquicap M FTI51, FTI52
Function switch Function
position
1
7 3
5
A
Operation
1
Restore
factory setting
** Switch status signaling (on/off/flashing) depends on the mounting location selected and the failsafe mode (MIN/MAX) set.
The LED flashes if a calibration has not yet been carried out.
*** Only in conjunction with electronic insert FEI55 (SIL). The device is in the SIL mode. To change the current settings, the device must be unlocked.
!
Endress+Hauser
6.2.13

Restoring factory settings

– key + key
_
+
B C
Press both keys for
approx.
20 s
Note!
• This function allows you to restore the factory settings. This is particularly useful if the
device has already been calibrated once and, for example, there is a fundamental change
in the medium in the tank.
• After restoring the factory settings, you must repeat the calibration.
To restore the factory settings, proceed as follows:
1. Turn the function switch to position 1.
2. Press the "+" and "–" keys simultaneously for approx. 20 seconds. During the time it takes
to restore the factory settings, the LEDs 1–5 light up consecutively.
3. The factory settings have been successfully restored if the green LED 1 and the yellow
LED are flashing.
You have now restored the factory settings and can continue with setting the measuring
range and the calibration.
Light emitting diodes (LED signals)
1 (green) 2 (green) 3 (red)
Flashes On*** Flashes
Operationa (MIN-SIL) (warning/
l LED alarm)
On –> –>
Commissioning
4 (green) 5 (green) 6 (yellow)
On*** On/off/
(MAX-SIL) flashes**
–> –> **
55