Do you have a question about the Emerson Rosemount 644 with HART Protocol and is the answer not in the manual?
Type | Temperature Transmitter |
---|---|
Measurement | Temperature |
Output Signal | 4-20 mA with HART Protocol |
Accuracy | Up to ±0.1% of span |
Communication Protocol | HART |
Enclosure | Aluminum or stainless steel |
Input | Single or dual sensor input |
Process Temperature Range | Depends on sensor type |
Power Supply | 10.5 to 42.4 VDC |
Enclosure Rating | Type 4X, IP66 |
Display | Optional LCD display |
Sensor Type | RTD, Thermocouple |
Mounting | Head-mount, rail-mount |
Temperature Range | -40°C to 85°C (-40°F to 185°F) |
Covers essential variables for transmitter operation, including mapping HART variables and sensor setup.
Provides a flowchart and steps for mounting, wiring, and powering the transmitter.
Step-by-step instructions for head mount transmitter installation with DIN plate or threaded sensor.
Explains how power is supplied via signal wiring and how to connect wiring for the transmitter.
Details compatibility with RTD and thermocouple sensors and proper connection methods.
Allows alteration of the transmitter's input interpretation for site-standard calibration using known temperature sources.
Covers trimming the transmitter's analog output to match standards, including 4-20mA and scaled outputs.
Enhances accuracy by creating a custom curve matching specific sensor performance via Callendar-Van Dusen constants.