Burkert GENERIC 8400, Руководство по эксплуатации

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Adjustment and functionalities
9.7.1. Commutation modes on the 8400
Two commutation modes on the transistor or relay are available:
- hysteresis mode;
- window mode.
In hysteresis mode (see Fig. 24), the status of the transistor or
relay is changed:
- on detection of the high threshold (O HI) when the measured
temperature increases
- on detection of the low threshold (O LO) when the measured
temperature decreases.
Not inverted
Contact
T°
ON
OFF
OLO OHI
T°
Contact
Inverted
ON
OFF
OLO OHI
Fig. 24: Changing the output in hysteresis mode
In window mode, the status of the transistor or relay output
is changed whenever one of the thresholds is detected (see
Fig. 25).
Contact
Not inverted
T°
ON
OFF
OLO OHI
ON
OFF
OLO OHI
Contact Inverted
T°
Fig. 25: Changing the output in window mode
The time delay before commutation (DEL) is valid for both output
thresholds. Commutation is done if one of the thresholds (O HI,
O LO) is exceeded for a period longer than the time delay prior to
commutation, DEL (see Fig. 26).
english
Type 8400