Description
Technical Specifications
- Product Model：STT850-T-0-CBHC-11C-B-00A0-F1-0000
- Brand：Honeywell
- Warranty：One Year
- Supply Voltage：10.5 ~ 42 VDC, two-wire loop powered
- Signal Output：4–20mA HART® (HART 7)
- Measuring Medium：Liquid, gas, steam
- Sensor Type：RTD Pt100 (3-wire / 4-wire configurable)
- Operating Ambient Temp：-40 °C ~ +85 °C
- Process Connection Temp：-200 ~ +600°C (depends on thermowell assembly)
- Storage Temperature：-40 °C ~ +85 °C
- Accuracy：±0.05% of span
- Response Time：Tau ≤ 1.5 s (sensor dependent)
- Protection Class：IP66 / NEMA 4X transmitter housing
- Communication：4–20mA + HART 7; supports AMS, Field Communicator
- Overload：Reverse polarity protection, transient surge protection
- Enclosure Material：Low copper aluminum alloy
- Mounting：2″ pipe mount or direct mount to thermowell
Product Overview
The STT850 SmartLine Temperature Transmitter is Honeywell high-performance loop-powered temperature transmitter. This model accepts Pt100 RTD input, converts resistance signal into standard 4–20mA analog signal with digital HART protocol. It supports wide-range temperature configuration, sensor break detection, damping adjustment, and engineering unit scaling.
The fully isolated circuit design effectively suppresses electromagnetic interference. Local configuration can be completed via handheld HART communicator or PC software. Suitable for direct installation in field hazardous areas (intrinsically safe certification available).
Instrument engineers widely adopt this transmitter for process temperature acquisition. Stable measurement performance reduces drift, minimizes calibration frequency, improves process control precision.
Application Scenarios
- Petrochemical Refineries：Monitor reactor, distillation column, pipeline medium temperature; intrinsically safe design fits Class I hazardous zones.
- Natural Gas & LNG Processing：Track cryogenic and high-temperature process fluid temperature for separation and compression units.
- Power Plant Boilers & Balance of Plant：Measure flue gas, feedwater, steam temperature linked to DCS control system.
- Pharmaceutical & Food Processing：Sanitary temperature measurement for reactors, sterilization systems and heat exchangers.
- Water Treatment Industry：Monitor temperature of raw water, chemical dosing and heat exchange systems.
Code Simple Decoding (Model String)
STT850 = SmartLine Temperature Transmitter
T = RTD Input
0 = Base configuration
CBHC = Housing, material & certification options
11C = Electrical connection & terminal specification
B = Display option
00A0 = Span, damping, sensor fault action
F1 = Additional function option
0000 = No extra custom options
Reviews
There are no reviews yet.