Series 642 programmable HART® field temperature transmitter
The Series 642 programmable HART® field temperature transmitter is a 2-wire unit with analog output. It includes input for RTDs; resistance inputs in 2-wire, 3-wire, and 4-wire connections; thermocouples and voltage signals. The transmitter can be supplied with or without a digital display, in either a general-purpose aluminum housing, or explosion-proof aluminum housing. The Series 642 can be programmed with a PC or a HART® protocol handheld terminal. When supplied with a digital display, the LC screen shows the current measured value and a bar graph with limit value violation indicator.
Application Areas
• Temperature field transmitter with HART® protocol for converting various input signals to an analog, scaleable (4 to 20) mA output signal
• Input: Resistance thermometer (RTD) Thermocouples (TC) Resistance input (Ohm) Voltage input (mV)
• HART® protocol for operating the device on site using a handheld communicator or remotely via the PC
Features and Benefits
• Universally programmable with HART® protocol for various input signals
• Illuminated display, rotatable
• Operation, visualization and maintenance with PC; e.g. using TransComm Light operating software
• 2-wire technology, analog output (4 to 20) mA
• Undervoltage detection • Highly accurate in entire operating temperature range
• Approvals: FM and CSA (IS, NI, XP and DIP)
• Galvanic isolation
• Output simulation
• Min./max. process values recorded
• Customized measuring range setup or expanded SETUP;
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