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Can install one or two two-wire limit switch (Strictly speaking, "initiator") SJ3, -N.
After the switch board into the slot, fan-shaped plate pointer just cut or cut out from
the "initiator" recess to meet Flow rate requirements.
Must start with the transistor relay (isolating switching amplifier) or digital boards
and other support to complete the switch function.
Connection: with transistor relay WE77 WE77 transistor relay detailed wiring
instructions, pay attention to positive and negative (lower limit + 2, 1; upper limit +
5, 4).
Site measuring method: measuring the supply voltage (note positive and negative)
(approximately 4VDC or action) about 8VDC, you can toggle when the flow indication pointer
reaches the alarm point, the output voltage transition occurs (from about 8VDC jump into
about 4VDC or vice versa ).
Adjust alarm method: Loosen (do not remove) the initiator pointer locking screw (see
figure ○ 3), struck by the initiator pointer can adjust the position of the alarm point
(alarm value can be referred to the initiator pointer scale indicating position on the disc).
TG22 Limit Switch Technical Data
Rated voltage 8VDC Effective area on ≥3mADC
Self-inductance 160μH Self-capacitance 40nF
Protection category IP65 Effective area off ≤
1mADC
Ambient temperature -25℃～+100℃
18
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