Vibrating Fork Level Switch for Liquid
Product Details:
A specially shaped tuning fork is kept vibrating by piezoelectric elements at a set frequency. The frequency of the vibrating fork changes when the tines are immersed in the liquid. The change in the frequency is detected and used for switching a relay. The output contacts of the relay can in turn be used for annunciation or control.

Housing	Cast aluminum weather-proof and Flameproof suitable for mounting in hazardous area Gas group IIA, IIB & IIC as per IS-2148
Cable Entries	2 Nos.
Mains	19 to 260 V AC, 50/60 Hz & 11 to 55 VDC
Output	One set (1 SPDT) of potential free change over contacts rated at 6A 230V AC & 6A 25 VDC for non-inductive load. (DPDT Optional)
Time Delay	Adjustable from 1 to 20 second for probe covered & uncovered condition.
Indication	Red LED for alarm and Green LED for normal condition.
Power Consumption	5 VA approx.
Response Time	1 second. approx.
Operating Temp.	-20ºC to + 60ºC
Fail-Safe Mode	High or Low field selectable.