Siemens the probe Betriebsanleitung Seite 9

Alarm
The alarm adjustment assigns one of the following
functions to the relay.
O =
Ø =
Fail-Safe
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• To change the speed of response, obtain the `SP' display.
• Scroll forward through the options (1-2-3) by pressing the "20" key. Scroll backward through the
options (3-2-1) by pressing the "4" key.
• When the desired option is displayed, stop pressing the key. The display will automatically return
to the Run mode (6 sec).
3 sec speed of response
current option i.e. 1 m/min
press "20" for option 2 i.e. 5 m/min
option 2 selected
6 sec
loss of echo / fault alarm (factory setting)
The relay is energized with the contacts open during
normal operation (see Fail-safe on page).
process alarm
The non zero value entered becomes the alarm setpoint,
referenced to The Probe's sensor face. The relay de-
energizes and the contacts close when the material is
within the alarm zone. There is a hysterisis equivalent to
5% of the empty calibration distance.
• To change the alarm function or setpoint, obtain the `AL' display.
• Press the "20" key to increase or the "4" key to decrease the setpoint.
• When the display has scrolled to the desired value, stop pressing the key. The display
automatically returns to the Run mode (6 sec).
alarm
3 sec
stored function i.e. LOE / fault
Press "20" to adjust setpoint i.e. 1.36 m
Press "4" to decrease to desired setpoint
i.e. 1.35 m
new alarm value
6 sec
In the event a loss of echo or fault condition exceeds the `Waiting' period (see Speed of Response
on page 6 or Fail-safe Timer below), the ` ? ' icon appears and one of the following fail-safe defaults
is immediately effected.
FLS default
1 full
2 empty
3* hold
p = proportional span i = inversely proportional span
The Probe – INSTRUCTION MANUAL
manuals search engine
The Probe
alarm
setpoint
hysterisis
For faster scrolling, hold the
Note:
key depressed during the setpoint
adjustment and release when the
desired value is obtained.
p i
mA mA
22 4
4 22
hold hold
* = factory default
blanking
alarm zone
reading
hold
hold
hold
Page 7