Level Switches

The complete system, JAYCEEFORK -2000 series, consists of the sensing probe of vibrating fork and the electronic switching unit. These are easy to install and require no calibration. It proves to be extremely cost effective as it reduces the inventory cost by a considerable amount.

The salient features are as follow:

• Vibration of the fork has self cleaning properties
• The light deposit on the container wall does not affect the operation
• Fast and Easy Installation
• No Calibration
• No effect of electrical properties of the Service material
• High Reliability
• Suitable for the highly dusty environment
• Field selectable operation logic
• Can be configured either for High or Low Level point switching
• Provides economical solutions
• Various model not required
• Reduces the Inventory cost

The technical specifications are as follow:
 
Switching Unit:

• Housing: Aluminum, weather proof, powder coated. Integral with The probe/ suitable for back panel mounting
• Cable entry: 2 nos.
• Ambient temperature: 0 ° C to +60° C
• Power consumption: 2 VA
• Mains Voltage: 230/110 V AC (+/-15%), 50 Hz OR 24 V DC
• 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

 
Fork (Sensing Probe):

• Mounting: Screwed ¿ 1 ½ BSP (standard) Or Flanged (optional)
• Sense: Fork, Stainless steel
• Extension: Pipe
• Length: 250 (standard) up to 3000 mm and as per application.
• Operating Temp in (standard): 150 deg for the integral switching vessel unit, 200°C (on request)

Our RF level switch is widely applied in various products such as Building industry materials, cement, sand, lime, milk powder, flour, salt, food grains, powder, granular, chemical and mining etc. These comprise of a specially designed electronics and sensing probe using Driven Shield Coat Guard circuit and corresponding 3-Element Probe.

The electro-mechanical combination of the Coat Guard technique is there makes the system immune to the material build-up on the probe and material bridging between the probe and the hopper wall. The measured signal does not flow to the hopper wall through the probe in the backward direction but flows only through the material.

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

 
The specifications of these point level switch are as follow:
 
Switching Unit:

• Housing: Aluminum, weather proof, powder coated. Integral with The probe/ suitable for back panel mounting
• Cable entry: 2 nos.
• Ambient temperature: 0 ° C to +60° C
• Power consumption: 1.9 VA
• Mains Voltage: 230/110 V AC (+/-15%), 50 Hz OR 24 V DC
• 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

 
Coat Guard Sensing Probe:
 

• Mounting: Screwed 1 ½ BSP (standard) Or Flanged (optional)
• Sense rod: Stainless steel
• Shield: Stainless steel
• Insulation: 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

 
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.

Salient Features :

• Fast and Easy Installation
• No Calibration.
• No effect of electrical properties of the Service material.
• High Reliability.
• Suitable for the highly dusty environment.
• Suitable for grain size upto 20 mm Field selectable operation logic.
• Can be configured either for High or Low Level point switching. Provides economical solutions.
• Various model not required.
• Reduces the Inventory cost.

TECHNICAL SPECIFICATIONS (STANDARD):

SWITCHING UNIT:

• Housing: Aluminum, weather proof, powder coated. Integral with The probe/ suitable for back panel mounting.
• Cable entry: 2 nos.
• Ambient temperature: 0 ° C to +60° C
• Power consumption: 2 VA
• Mains Voltage: 230/110 V AC (+/-15%), 50 Hz OR 24 V DC
• 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 2 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.

Salient Features :

• Fast and Easy Installation
• No Calibration
• No effect of electrical properties of the
• Service material.
• High Reliability.
• Suitable for the highly dusty environment.
• Field selectable operation logic.
• Can be configured either for High or Low
• Level point switching.
• Provides economical solutions.
• Various model not required.
• Reduces the Inventory cost.

Technical Specifications (STADARD):

SWITCHING UNIT :

• Housing: Aluminum, weather proof, powder coated. Integral with The probe/
• Cable entry: 2 nos.
• Ambient temperature: 0 ° C to +60° C
• Power consumption: 2 VA
• Mains Voltage: 80 to 265 V AC , 50 Hz or 24 V Dc, Output: 1 sets of potential free c/o
• contacts rated at 5 amps, 230 V AC for non-inductive loads.
• (OPTIONAL) Transitor output
• Switching delay: Continuously adjustable From 2 to 20 sec. probe Free or probe  covered.
• 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.

FUNCTION:

The electronically stimulated fork vibrates at its  mechanically resonance frequency of 400 Hz when the fork is free of the service material. The resonance is caused by the piezoelectric crystals. One of the piezo crystals produces a small voltage which is transmitted to the switching amplifier. If the fork is covered by the bulk material, a damping effect is produced and the piezo crystal does not produce the voltage and the amplifier will switch and a corresponding signal output is actuated. The vibration of the fork has self-cleaning properties.The light deposit on the container wall does not affect the operation of the AQUAFORK

PRIMARY AREA OF APPLICATION: All types of liquids

SALIENT FEATURES:

• Fast and Easy Installation.
• No Calibration.
• No effect of electrical properties of the Service material.
• High Reliability.
• Suitable for the highly dusty environment.
• Field selectable operation logic.
• Can be configured either for High or Low.
• Level point switching.
• Provides economical solutions.
• Various model not required.
• Reduces the Inventory cost.

MEASURING SYSTEM:

The complete system, AQUAFORK-7000… series, consists of - The sensing probe of Vibrating Fork and The Electronic Switching unit.

TECHNICAL SPECIFICATIONS (STANDARD):

SWITCHING UNIT:

• Housing - Aluminum, weather proof, powder coated. Integral with the probe suitable for back panel mounting.
• Cable entry - 2 nos
• Ambient temperature - 0°C to +60°C
• Power consumption - 2 VA
• Mains Voltage - 230/110 V AC (+/-15%), 50 Hz,or 24 V Dc
• 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 2 to 20 sec. probe free or probe covered.
• 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.

FORK (SENSING PROBE):

• Mounting - Screwed - 1 ” BSP (standard) Or Flanged (optional) Sense Fork, Stainless steel
• Extension Pipe
• Length - 120 mm (standard)  upto 3000 mm and  as  per application.
• Operating Temp - 150 deg for the integral switching vessel unit (standard).

Salient Features :

Flexible coupling (optional as per application) robust, dust and watertight housing . Extended Probe possible. Extended life by motor shut off design. sealed bearings. Interchangeable paddle assemblies, magnetic clutch mechanism

Technical Specifications (Standard) :

SWITCHING UNIT:

• Housing: Aluminum, weather proof, powder coated. Integral with The probe
• Cable entry: 2 nos.
• Ambient temperature: 0 ° C to +60° C
• Power consumption: 1.9 VA
• Mains Voltage: 230/110 V AC (+/-15%), 50 Hz
• Output: 1 sets of potential free c/o contacts rated at 5 amps, 230 V AC for non-inductive loads.
• Switch status display:Green LED shows Normal, Red LED shows alarm condition.
• Mounting : Screwed – 1 ½” BSP (standard) Or Flanged (optional)
• Sense rod : Stainless steel, 12 MM DIA
• Paddle : 1 – 4; Paddles depending upon application.
• Operating Temp in : 80 deg for the standard unit. 200°C ON REQUEST

Salient Features :

• No moving part, free from maintenance.
• No special cable required for signal transmission, ECONOMICAL to install.
• Long cable connection permissible between probe and evaluation unit.
• AC on probes for prevention of electrolytic deterioration of electrodes.
• Low voltage on probe for operational safety.
• Variety of control functions and installation system available, beside single point switching.

1. Two point action for automatic pump control.
2. Two point independent switching.
3. Three point switching, two points with pump control logic and one independent point.
4. Four point switching having two-pump control logic.
   

• Variety of probes available for various process conditions.
• Multichannel -4 point independent switching available for various process conditions.

TECHNICAL SPECIFICATIONS (STANDARD):

SWITCHING UNIT:

• Housing: Aluminum, weather proof, powder coated. for back panel mounting /DIN Rail mounting
• Cable entry: 3 nos.
• Ambient temperature: 0 ° C to +60° C
• Power consumption: 1.9 VA
• Mains Voltage: 230/110 V AC (+/-15%), 50 Hz or 24 V DC (ON REQUEST)
• Output: 1 sets of potential free c/o contacts rated at 10 amps, 250 V AC for non-inductive loads.
• 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.
• Response Time: 0.5 Sec
• Weight: 1.5 Kg Cast Al.

Steel diaphragm level switch for boot level application.

Hopper level switch for liquids and free flowing powders and grains.

This is a RF admittance based level switch with coat guard, driven shield feature which makes it immune to material build up on the sensor face.