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RF Admittance Type Level Switch

RF Admittance Type Level Switch
Business Type Manufacturer, Exporter, Supplier, Retailer
Mounting Screwed 1 ½ BSP (standard) Or Flanged (optional)
Sense Rod Stainless Steel
Shield Stainless Steel
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Preferred Buyer From

Location Worldwide

Product Details

PTFE (standard) other on request and as per application.
Operating Temp in
100 deg for the integral switching vessel unit.225°C for remote switching unit
Power consumption
1.9 VA
Ambient temperature
0 ° C to +60° C
Cable Entry
2 nos.
Aluminum, weather proof, powder coated. Integral with The probe/ suitable for back panel mounting
Mains Voltage
230/110 V AC (+/-15%), 50 Hz OR 24 V DC
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The salient features of this level measuring instrument are as follow:

  • Three Element Coat Guard Technology
  • Can be configured either for High or Low Level point switching
  • Reduces the Inventory cost
  • Ignores material build-up on the probe
  • Suitable for the highly dusty environment
  • High Reliability
  • Fast and Easy Installation Simple Calibration
  • Field selectable operation logic
  • Provides economical solutions
  • Various models not required

Details :

  • Output: 2 sets of potential free c/o contacts rated at 5 amps, 230 V AC for non-inductive loads
  • Switching delay: Continuously adjustable From 1 to 20 sec. probe Free or probe covered (Optional)
  • Safety operation: Field selected switch over for min. or max. (FSL/FSH) switching points
  • Switch status display: Green LED shows Normal, Red LED shows alarm, Yellow
  • LED shows power on condition

The Principle of Working:

  • The major shortcoming of the conventional method is that after the level has once increased and then decreased, there may be a coating left on the probe sensed by the instrument as though the level is still on the probe. In our switch, a coat guard amplifier is incorporated in the circuit having its output exactly at the same voltage and phase at all times as its input.
  • The output is connected through the shield of the low capacitance co-axial cable to the concentric tube on the sense probe, called shield element. There is no current flow through the cable as both the elements, sense and shield are exactly at the same potential and phase at all times.
  • This results in no change in calibration due to coating on the probe and the temperature effect of the cable. This makes it possible to increase or shorten the cable connecting the switching unit without changing the original calibration.

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