1 General
The PHÖNIX type 740.0060/65 level switches can be used on all PHÖNIX
The level switch hysteresis depends on the liquid level gauge (s. chapter 9) and can be used as a two- step action.
Because of its low mass switching element this level switch is particularly suitable in installations with strong vibrations,
1.1 Type 740.0060
Two types of operation are available with the PHÖNIX type 740.0060 level switch.
a)Used as electronic power switch, it is recommendable for the switching of heavy
b)Used as a Reed miniswitch, it is usable for the switching of
ATTENTION: TRIAC and REED cannot be used at the same time!
Fig.1 Circuit design 740.0060
1.2 Type 740.0065/65NA
The level switch type 740.0065 (fig. 2a) is reduced to a Reed miniswitch for low level AC/DC loads. The type 740.0065NA is alternative - as shown in fig. 2b - fitted with two resistors (RS=1k, RP=10k) for usage in NAMUR circuits.
Fig. 2a: Circuit 740.0065 | Fig. 2b: Circuit 740.0065NA |
PHÖNIX Messtechnik GmbH, Salzschlirferstr. 13,
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