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Diligent Protectors & Monitors |
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Gas Burners |
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Diligent Flame Sensors & Enclosures |
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Diligent Flame Monitors
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Diligent Burner Controllers
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Autocon for Import Substitutes for most of the popular brands |
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Diligent Ratiocon Air / Fuel Ratio Regulator |
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Electric Infrared Emitters from M/s Twin Infratec, Germany. |
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Diligent Thyristor controlled 1 phase & 3 phase Power Modules |
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Diligent SMPS power supply |
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Diligent Industrial Automatic Battery Chargers |
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Diligent TransiGuard Transient Protection for 1 ph & 3 ph Circuit |
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Diligent Protectors & Monitors
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Diligent Protector for AC applications
Diligent AC relays are available for Over Load (OL), Single Phasing (SP), Phase Reversal (PR), etc. The overload relays are available in 1ph and 3ph types. 1ph-relays are useful on single phase load and can also used as economical solution for 3 ph applications whenever load is balanced. These are classified depending on the response to the overload condition and the classification is as follows
INStantaneous (INS) type. In this relay changes the state as soon as overload occurs.
•Time-Delayed (DLY) type. In this the relay changes the state only after elapse of present period from the time overload occurred & stayed.
•Jam (JAM) type. In this, the control relay does not respond to the overload condition for a preset time from switching on the load but after elapse of this time, the relay responds immediately to any overload.Instantaneous type is primarily made for AC loads other then motor such as: transformer, heater etc. However, it has been also used along with other logic to control motor.
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Diligent Flame Sensors & Enclosures
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Detection of combustion flame is achieved by using sensor to sense one of the following characteristics of flame
a. Visible bright yellow / white light
b. Infra Red radiations
c. Ultra-Violet radiations
d. Ionic Current |
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Diligent Chargecon Controller for Industrial Automatic Battery Chargers
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These are specially developed units to answer problem of power line transients & surges arising due to switching of heavy electric loads in the neighborhood. We also provide solutions for higher levels of power transients that arise due to Atmospheric discharges, Lightening strikes, Heavy power disturbances in the grid, etc. |
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Diligent Ratiocon Air / Fuel Ratio Regulator
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Proper combustion of fuel requires correct proportion of Air and Fuel. This is called Stoichometric Ratio. However, in practical case this proportion does not remain same due to various physical parameters associated with the burner and burner components, such as blower, fuel pump, etc. and it is required to vary this for different operating conditions. In earlier time this was done mechanically by having adjustable profile cams. Each cam corresponds to different operating point.and is adjusted for specified Air/Fuel ratio to ensure optimum combustion.
Diligent Ratiocon is fully electronic system to set the profile for achieving desired Air / Fuel ratio for optimum combustion with specified excess air. Control Signal 4-20 mA or 2-10V dc from process controller is divided in 16 steps. Signal at each step is modified by adjustable multiplier of that step and made available at out put as 4 – 20 mA or 2 – 10 v dc signal. Multiplier is settable over 0.5 to 1.5. Separate retransmitted 4 – 20 mA or 2 – 10 V signal is available for controlling the combustion Air. Ratiocon works on either 110 V or 230 V +/-10%, 1 phase ac supply. |
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