Instrumentation Control Panels

Product Details:

Libratherm offers micro-controller based FLP Enclosure Process Indicator And Transmitter model FTX-3000 in flameproof field mount enclosure, for measuring and indicating process parameters such as temperature, pressure, humidity, level etc..and converting to the equivalent analogue and digital values proportional to the Process Input for long distance transmission and interface to the PLC or DCS or any other field device. FTX-3000 is a very useful device to capture the low-level signal from the hazardous area and bringing back the signal to the main control room.

Temperature or Process values corresponding to the input is indicated on the digital display and the corresponding display range is converted to the 2 wire current output of 4-20mA/0-10VDC proportional and linearized to the selected process input. This linearized signal can be used for remote measurement and indication. For the dual input model FTX-3000-U-2 or FTX-3000-F-2, two independent 4-20mA/0-10V signals are available. The analogue outputs are isolated from the DC power supply. Single FTX-3000 can be used to capture two process inputs, thereby saves on size and price.

To interface low-level field signals with PLC or DCS or with any other process controller – the measured and displayed analogue values are converted for digital serial communication on the isolated RS485 bus with MODBUS RTU protocol in slave mode.

The advantage of the RS485 interface: Providing the feature of RS 485 digital serial interface is advantageous since the number of wires coming from the various sensors/transmitters can be avoided and instead, only two wires can be used to interface multiple such FTX-3000 on a serial port. The digital communication has the greatest advantage of exactly replicating the process value, that is what is measured at the plant and what is displayed in the control room always matches one to one as compared to transmitting the analogue values. In today’s technology, most of the PLCs and DCS accepts RS485 digital interface.

Features:

• Microcontroller based design.
• Universal single or dual industrial process input (user selectable).
• RS-485 MODBUS RTU serial interface.
• Bright red LED display.

Product Details:

Model Wise Description:



Description:
Libratherm offers micro-controller based Process Transmitter model PTX-3000 for measuring and transmitting the analogue and digital values proportional to the Process Input. This model can accept eight industrial standard universal inputs, which is user selectable using internal DIP switch. For input selection, three options are available, where user  can specify the desired model for a) universal input or b) any of the two fixed inputs or c) any of the single fixed input. Temperature or Process values corresponding to the input is indicated on the display and the corresponding display range is converted to the 2 wire isolated current output of 4-20mA proportional and linearized to the process input.  This linearized signal can be used  for remote measurement and indication. For the dual input model PTX-3000-T, two independent 4-20mA signals are available on three wires.

For interface with PLC or DCS or with any other process controller – the measured and displayed analog input is converted for digital serial communication on RS485 bus with MODBUS RTU protocol in slave mode.
Advantage of RS485 interface:  Providing the feature of RS 485 digital serial interface is advantageous, since the number of wires coming from the various sensors can be avoided and instead, only two wires can be used to interface multiple such PTX-3000 on serial port.  For example, for a large heating system incorporating 16 thermocouples, under conventional method 16 dual core compensating cables will run from the heating system to the control panel, where as  in case of RS485 interface, only two wires will run from the system to the control panel. Another advantage of RS485 interface is that, when to be interfaced with PLC – the additional analogue module is not required, since most PLC accepts RS485 interface on MODBUS RTU protocol.

Features:

• Microcontroller based design.
• Universal industrial input (user selectable).
• Isolated 4-20mA proportional and linearized for the selected input.
• RS-485 MODBUS RTU serial interface. 
• Bright red LED display.
• IP 65 ABS plastic enclosure.
• Operates on 18 to 36VDC.

Additional Information:

• Item Code: PTX-3000
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai