Para Electronics has developed Industrial products for :
   Broken Bag Indicator   |   Air Velocity Transmitter  |  Particle Aerodynamic Size Separator  | Flow Monitor
 

 

 
 PBI-1 : Broken Bag Indicator

 

 

Broken Bag Indicator, PBI-1 offered by Para Electronics, is suitable for Fluidized Air Bed Dryers used in Pharma and Chemical Industries.

PBI-1 works on tribo-electric principle. Current pulses generated due to the impact of powder leak, are sensed by the probe unit mounted in the exhaust duct .These input pulses are converted in to 4 to 20 mA output. The Readout unit displays the current value in % on a Bar Graph Display. 4 to 20 mA output and potential free Alarm Relay Contacts are available for PLC operations. 


To avoid false alarms and to detect genuine broken bag, time delayed alarm circuit is incorporated in the readout unit. Delay time is adjustable between 7 to 70 seconds.

Self diagnostic current input signal is internally fed to the probe to continuously monitor the reliable functioning of the Broken Bag Indicator. The distance between the probe unit and readout unit can be as long as 20 to 25 meters. 

Specifications :

  Read Out Unit
  Input Current : 4 to 20 mA as received from Probe Unit
  Display Readout : Bar Graph type Green color LED Indicating input current and set alarm level
  Preset Time  :  Settable between 6~7 to 60~70 sec (approx)
  Alarm Output : LED indication on front panel Change Over Relay Contacts
  POWER  :  240V AC Mains, with proper earth
  Probe Unit
  Input Range : 0 to 10 nA
  Output Range : 4 to 20 mA
  Power Supply : ± 12V DC (Internally generated by Readout Unit)
  Connector : Allied type MS 3102R-14S-6P MIL Grade 6 Pin Male Connector
  Probe : SS, 10 mm dia x 250 mm long* Suitable for duct sizes of 200, 300, 400 mm dia
  Electronics : Aluminum housing, 95 mm dia x 70 mm long
  Mounting   1” dia Standard NPT threads
  Mechanical
  Dimensions  : 150 L x 50 D x 100 H mm
  Weight : Approx 1 kg
  Interconnecting Cable : 20 meter long
     

 

                    
 PVT-1 : Air Velocity Transmitter

 


 

Para Air Velocity Transmitter Model PVT-1 is designed for measurement of air velocity in the duct for industrial applications. It measures air velocity in range of 0 – 20 meters / second. Model PVT-1 works on 24 V DC external supply and generates 4 to 20 mA output signal which is linearly proportional to air velocity of 0 to 20 meters / sec. in the duct. This current output can be transmitted through two wire signal cable to a distance upto 100 meters with maximum termination resistor of 250 ohms in the control panel, PLC or indicator unit for further processing.

Model PVT-1 sensor circuit is a robust, all solid state device working on Kings law. Probe length suitable to the duct diameter can be supplied.  

 Specifications :

  Air Velocity Range :  0 to 20 meters/sec
  Output Range :  4 to 20 mA
  Accuracy  :   ± 5% of Full Scale
  Power Supply :  +24V DC @ 200 mA (To be supplied externally)
  Connector  :   3 pin Amphenol type
  Probe Construction :  Stainless Steel, 10 mm dia
  Probe Electronics :  Aluminum housing, 95 mm dia x 70 mm long
  Probe Mounting  :   3/4 Inch BSP threads
  Probe Rod Length :  Suitable to duct diameter and mounting arrangement.
 (Dimensions to be specified by customer)
     




 

 PPASS-01 : Para Particle Aerodynamic Size Separator

 


 

Para Particle Aerodynamic Size Separator Model PPASS-01 is designed and developed for measurement of the size distribution in a host of applications such as pollution and atmospheric studies, inhalation hazard evaluation, characterizing lung delivery systems, material synthesis, etc. PPASS-01 is based on the principle of inertial impaction and separates particles according to their aerodynamic diameters in the range of 0.53 to 10 m in seven class intervals. It has a special feature that it can be used with the number of stages less than the maximum of seven. PPASS-01 is manufactured under license from Bhabha Atomic Research Centre, Mumbai. The design/technical knowhow transferred to Para Electronics- Manufacturing Division of Electronic Enterprises (India) Pvt. Ltd., is the product of developmental work by Environmental Assessment Division of BARC.

The PPASS-01 is useful for occupational monitoring of radioactive and non-radioactive environments, arising in the context of material processing, metal cutting, powder handling, etc. It is useful for air quality regulators as well as for researchers engaged in various aspects of air pollution and aerosol research. It can also be used by the pharmaceutical industries for characterising the lung aerosol delivery systems such as nebulisers and metered dose inhalers.  



Some important features of PPASS-01 are

  • higher flow rate of 45 lpm, enabling a quicker collection of samples for analysis
  • load any number of stages other than the maximum seven, depending upon the requirement
  • new design of collection plates reduces inter-stage losses and ensures uniform particle deposits
  • assembly or disassembly made easy by the use of stud and wing nut arrangement
  • low internal wall losses

The adjoining graph shows the response functions for the impaction stages of PPASS-01 indicating the collection efficiency variation with particle size. To standardize cut-off characteristics, a very simple and easy calibration method using well characterized, nebuliser generated polydisperse aerosols has been evolved. Each unit is tested for its stage response as per BARC test procedures.



 Typical Stage :

A typical stage is shown alongside. Nozzle rings are made of aluminium alloy of grade 6061, collection and impaction plates are of stainless steel, connecting adapters and fasteners are of brass. The unit is made leakproof with the use of neoprene gaskets

 Specifications :

  Impactor Stages :  7 Nos
  Operating Flow rate :  45 lpm
  Cut-off Diameters  :   8.95, 7.91, 6.09,4.15, 2.94, 1.03, 0.53 micro meter
  Collection Plate Holder :  82 mm Dia
  Collection Substrate  :   70 mm Dia
  Inlet Cone :   25 mm dia
  Unit Dimensions :  96 mm Dia x 230 mm Ht
  Weight  :      2.5 Kg
 
 Accessories

:

1. Monoblock Dry Vacuum Pump 100 lpm with ¼ hp motor, 230V, 50Hz operation, 1440 rpm, 0-100 lpm Rotameter or Electronic Flow Transducer and Digital Indicatr, Flow Adjust Bleed Valve

2. Carrying Case for PPASS-01 and the pump
     



 

 PFI-1 : Para Air Flow Monitor

 


 

PARA AIR FLOW METER Model PFI - 100 Low and High level alarms can be set within the full range of air flow. Air flow totalizer is also provided to integrate air volume in Liters for the preset time. Model PFI-100 sensor circuit housed in the probe unit, is a robust, all solid state device working on Kings law. The length of interconnecting cable between probe unit and readout unit can be 3 meters long. Necessary ½” pipe couplings are provided to enable user install the probe in the air line.

Model PFI -100 is designed for measurement of air flow in the pipes for industrial applications. It measures air Flow in the range of 0 – 100 LPM. Model PFI-100 works on 240 V AC Mains Supply. It  measures air flow in ½” dia pipe. This air flow is indicated on 4 x 20 char LCD Display. It also generates 4 to 20 mA output signal, linearly proportional to air flow in LPM. 

 Specifications :

  READOUT UNIT
  Air Flow Range :  0 to 100 LPM
  Accuracy :  ± 5% of Full Scale
  Menu  :   4 x 20 Character LCD
  Keyboard :  4 keys - TOT, SETUP, ENTER, ESC
  Alarms  :   Low and High Level
  Alarm Indication :  LED on front panel, Relay Contact
  Totalizer Time :  Settable up to 24:00 Hrs
  Totaliser On/ OFF  :   Through Keypad
  Output :  4 to 20 mA proportional to LPM
  Operating Voltage :  +240V AC, 50 Hz Mains Supply
  Mechanical :  Steel Housing, panel mounting type
  Dimensions  :   140 W x 110 H x 210 D mm
  Output :  4 to 20 mA proportional to LPM
  PROBE UNIT
  Probe Construction :  Stainless Steel, M14, Threaded female port
  Dimensions  :   Stainless Steel housing, 80 L x 70 H x 25 D mm
  Output :  1~2 meters long, 3 core cable with Amphenol connector
     





 

 
     
   

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