644H and 644R intelligent temperature transmitters
The 644 provides a flexible and reliable solution suitable for any temperature measurement. 644 is a high-precision transmitter.
It supports Hart, FOUNDATION fieldbus, or PROFIBUS PA communication protocolsand offers two installation forms: head mounted and
rail mounted. It is specifically designed to meet your most demanding applications. The LCD display can display local measurement
readings and has a transmitter sensor matching function,which can achieve unparalleled accuracy in transmitter and RTD
measurements. The 644H and 644R intelligent temperature transmitters are extensions of the Rosemount instrument series and can
accept 2, 3, and 4 wire thermistors, thermocouples, resistors, and millivolt inputs. Each transmitter undergoes ambient
temperature characterization atthefactory to reduce measurement errors throughout the entire operating temperature range.
Features:
* Extremely versatile temperature transmitter available in HART™, FOUNDATION™ Fieldbus or PROFIBUS™ protocols
* Diverse mounting configurations including head, field or rail mount with many enclosure options
* LOI option eliminates the need for special configuration tools (i.e. field communicator) for ease-of-use
* Transmitter-sensor matching with Callendar-Van Dusen constants reduces total measurement error
* Hot Backup™ capability and sensor drift alert with dual sensors ensure measurement integrity
* Thermocouple degradation diagnostic monitors thermocouple health to detect degradation before failure
* Minimum and maximum temperature tracking observes temperature extremes for easy troubleshooting
* Device dashboards provide easy interface for simplified device configuration and diagnostic troubleshooting
Q:How long will you reply me? A:We will contact you as soon as possible but within 12 hours
Q: Can I get some samples? A: Yes, Sample order is available for quality check and market test. But you have to pay the express cost.
Q: How soon can you arrange your production? A: Once getting your product confirmation and receiving the prepayment, the production will be started immediately.
Q: What's delivery time? A: It usually takes about 3-5 working days for small order and 10-15 days for big order.
Q:How do you control your quality ? A: Three inspection steps(of original, production, and finished goods) + good warranty service(1 year free to change a new one without any human damage factors).
Q: What certificates do you have ? A:ISO9000, CE, Explosion-proof certification, RoHs ready. And before the delievry of goods, quality and safety inspection
certification issued by third parts also can be offered.
Q:Could I visit your factory? A:Very welcome! Fly to Xian Yang air port. It was a big pleasure for us.
Q: What's your warranty terms? A: We offer 12 months warranty time.
Q:Can you provide OEM & Customized service? A:Yes, OEM and ODM are both available, we have the professional R&D dept which can provide professional solutions for you.
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