we are Versatile micro controller / Digital Gas Monitor Controller unit manufacturers & exporters in Mumbai, India. The features offered in this product are better than any other controller available in similar price range. The instrument is made in Standard 19-inch Aluminum Rack with coating. On back plate Standard Phoenix make terminals are used. to connect the 2. 5sq.mm Size The configuration & set point setting of the Instrument is used by four simple keys. The unit has four seven segment LED display for the % LEL or PPM of the gas value display. On the front side it has three discrete LED for status Alarm-1 & Alarm-2 Indications.
The unit is very easy to operate & editing is very user friendly. It has mainly two operating modes. configuration mode & run mode. In the configuration mode user can set the basic configuration parameters needed to make the unit work as per the user's requirement.
The product is made to accept 4- 20mA Analog signal from the Gas Detector The unit will allow configuring input type, zero value, span value, type of Alm-1, type of Alm-2 & display resolution (decimal point information).
In the run mode user can edit both the set point values. & corresponding hysteresis values. Provision for zero & span setting is made to restrict band of usage but this does not restrict the sensing of the input, means if the input value is below the set zero value or above the set span value but still within the specified range for linear type then the unit will continue to display the actual reading to indicate that displayed gas reading is out of the selected zero & span band. Controller Unit is also display the OPEN indication if the Gas Detector is not providing the 4-20mA analog I/P or Gas Detector O/P range not in limit.
The unit will display OVER & UNDR message at the minimum & maximum value specified in the specification. During this condition too, the unit will allow editing the set points and will support other keyboard operations. During the flashing display the unit will allow all keyboard operations like ambient display at the pressing of INCR key or Editing of set points but Relay will be switched off irrespective of the process condition. The unit will not allow edit/set the set point values beyond the zero & spanning setting made in the configuration mode. As specified earlier the unit will allow setting two set points with individual hysteresis for the relays. This relay operation can be configured as absolute on below (Lon) Set point & absolute on above (Hon) Set point.