Removable Probe RF Admittance Switch Anti Adhesion
Working Principle of RF Admittance Switch
The tuning fork type liquid level limit switch is not affected by
the dielectric constant, turbulence, agitation, bubbles, vibration
and other factors, and has no moving parts.When the tuning fork is
immersed in liquid or solid, the vibration frequency changes. This
frequency change is detected by the electronic circuit as a
switching value. Therefore, it does not need maintenance and
adjustment. It is an ideal choice for liquid level switches under
complex working conditions. The latest intelligent chip can be used
as an oil-water interface switch.The tuning fork is excited by the piezoelectric crystal to generate
vibration.
Design feature of RF Admittance Switch
◎ Strong versatility: it can be applied to the measurement of
various conductive and non-conductive media, such as liquid,
viscous substance, particle, powder and fly ash
◎anti adhesion: the patented anti adhesion circuit can eliminate
false signals caused by material adhesion.
◎ detachable probe: there is no cable connection between the
controller and the probe, and the controller can be removed,
replaced and repaired at any time, without affecting the incoming
and outgoing materials.
◎ High and low temperature resistance: suitable for the working
environment of - 184 ℃ to 280 ℃, and ceramic probes suitable for
higher temperatures can be provided.
◎ output form: double pole double throw relay signal output, and a
status lamp displays the output status, with a delay function of 0
to 30 seconds
◎ intelligent diagnosis: after turn on, the instrument circuit
automatically detects whether the working state is normal.
Technical parameters of RF Admittance Switch
| Typical application | High and low alarm for liquid, dust, particles, solids and other
media |
| product model | NYSP-UK861,NYSP-UK862,NYSP-UK863,NYSP-UK864,NYSP-UK865,NYSP-UK866 |
| Probe rod form | Cable type, pole type and flat type |
| Probe rod material | 500mm(The length can be customized according to the site
conditions) |
| Power Supply | 24VDC,220VAC |
| Signal Output | Double pole double throw relay (DPDT) output, 5A 24VDC or 5A 220VAC |
| Ambient Temperature | -40~+80℃ |
| Process Temperature | -40~+130℃,-184~+260℃,>260℃Select ceramic high temperature probe |
| Process pressure | -0.1~2.0MPa |
| Process connection | screw thread,brackets,flange(selectable) |
| time delay | 0-30s adjustable |
| Power loss protection | Normally open, normally closed, field switchable |
| sensitivity | 0.5pf~750pf |
| Fault alarm | Upper or lower limit, adjustable on site |
| levels of protection | IP67 |
| Explosion-proof grade | Exia II CT6 Ga,Exd II CT6 Gb(See certificate for details) |
※Note:The product can be customized according to the specific
requirements of users.
