SmartLine STT850

The SmartLine STT850 temperature transmitter is designed to deliver very high performance across varying ambient temperatures. The total installed accuracy level of the transmitter, including the ambient temperature effect, allows the STT850 to replace virtually any transmitter available today.

1. BEST IN CLASS FEATURES:

1.1. Industry leading performance

• Digital Accuracy up to 0.10 Deg C for RTD
• Stability up to 0.01% of URL per year for ten years
• 125 mSec update time for single input models
• 250 mSec update time for dual input models
• Sensor Matching Facility for higher accuracy

1.2. Reliable measurement

• Built in Galvanic Isolation
• Differential/Averaging/Redundant/Split Range measurements
• Dual Compartment Housing
• Sensor Break detection
• Comprehensive on-board diagnostic capabilities
• Full compliance to SIL 2/3 requirements.
• Available with 15 year warranty
• Supports Namur 107* Extended Diagnostics
• Supports Namur 89 Wire break

1.3. Lower Cost of Ownership

• Universal input
• Dual sensor option
• Multiple local display capabilities
• Modular construction
• External zero, span, & configuration capability
• Polarity insensitive loop wiring
• Digital Output Option

1.4. Communications/Output Options:

• 4-20mA dc
• Honeywell Digitally Enhanced (DE)
• HART ®(version 7.0)
• FOUNDATION™ Fieldbus compliant to ITK 6.1.1
• All transmitters are available with the above listed communications protocols.

2. MODULAR FEATURES

• Replace Temperature/Terminal board/Lightning protection
• Exchange/replace electronics/comms modules
• Add or remove integral indicators
• Add or remove external configuration buttons

3. SYSTEM INTEGRATION

• SmartLine communications protocols all meet the most current published standards for HART/DE/Fieldbus.
• Integration with Honeywell’s Experion PKS offers the following unique advantages.
• Transmitter messaging
• Maintenance mode indication
• Tamper reporting
• FDM Plant Area Views with Health summaries
• All STT 850 units are Experion tested to provide the highest level of compatibility assurance