Fisher Rosemount
Model 644H & 644R HART Smart Temperature Transmitters

Rosemount Models 644H and 644R HART Smart Temperature Transmitters are microprocessor-based instruments that accept inputs from a wide variety of sensors. The Model 644 transmitter combines Rosemount reliability with the flexibility of digital electronics, and is ideal for non-critical applications that require good performance or remote communications.

• Significant savings in wiring and labour costs when compared to wiring direct.
• Potted electronics for excellent protection against humidity.
• Sensor referencing feature enhances total system accuracy.
• Temperature corrected electronics reduces ambient effects.
• Superior RFI immunity increases product reliability.
• Fail-safe alarming provides reliable fault detection for electronics and sensors.
• Compact design allows installation into a wide range of connection heads or on a DIN rail.

Applications for the Model 644H/R Transmitters

The Model 644 H/R temperature transmitter adds value to your process by providing excellent accuracy and reliability over a wide range of operating conditions. These transmitters are compatible with a wide variety of sensors which are software selectable using the HART^® Communicator.

BACK  Product Data Sheet (PDF @549kb)Configuration Data Sheet (PDF @125Kb)
Product Specification Sheet (PDF @56Kb) Model 644H/644R Manual (PDF @2.90 Mb)

HAMALL PROCESS INSTRUMENTS, DEVONPARK MILLS, ALEXANDRA STREET, TILLICOULTRY, CLACKMANNANSHIRE, SCOTLAND, UK. FK13 6HP
TEL NO : 44 (0)1259 753753 FAX NO : 44 (0)1259 752770
sales@hamall.co.uk