WIKA DI35 - Manual (Page 21)

6 Commissoning, operation
WIKA operating instructions digital indicator model DI35-M 21
6.3.3 General functions
MIN/MAX memory
The measured minimum and maximum values are saved in a volatile memory
in the unit and get lost when the unit is switched off.
You can call up the contents of the memory by pushing (less than 1 second)
the
[▲] or [▼] key. The relevant value is indicated for approx. 7 seconds. By
briefly pressing the same key again, you will return immediately to the display
mode.
[▲] displaying of MAX value
[▼] displaying of MIN value
You can erase the value shown in the display by simultaneously operating the
[▲] and [▼] keys. The erasure is acknowledged by horizontal bars.
Information
The content of the memory will be lost with switching-off of
the device.
6.3.4 Description of the alarm outputs
With the aid of the LED next to the 7‑segment display, you can view the
switching state of the relays. An active relay is indicated by the relevant LED
lighting up.
Working principle
The alarm outputs have the following properties with regard to their switching
properties:
Parameter
Description
Alarm / Relay x De-activiated, instananeaous value, MIN value, MAX
value, Hold value, sliding average value, totalizator
value
Threshold Threshold / Switch-over threshold
Hysteresis Width of window between switching threshold
Working principle Operating current / quiescent current
Switch-on delay Time between reaching the threshold and the
resultant switching on of the relay.
Switch-off delay Time between reaching the threshold and the
resultant switching off of the relay.
Alarm confirmation Switch-on or switch-off interlock and rejection at
activated digital input or multi-function key