Thiết bị đo Universal Input Pressure Temperature Transmitter STT750 Smart Line 4-20 MA Dc HART
Pressure Temperature Transmitter STT750 SmartLine 4-20 mA dc HART ® (version 7.0) Universal input
Introduction
Part of the SmartLine® family of products, the SmartLine STT750 is a high-performance temperature transmitter offering high accuracy and stability over a wide range of process and ambient temperatures. SmartLine easily meets the most demanding needs for temperature measurement applications.
Best in Class Features:
Industry leading performance
o Digital Accuracy up to .14 Deg C for RTD
o Stability up to +/-0.01% of URL per year for ten years
o 125 mSec update time
Reliable measurement
o Built in Galvanic Isolation
o Dual Compartment Housing
o Sensor Break detection
o Comprehensive on-board diagnostic capabilities
o Full compliance to SIL 2/3 requirements.
o Available with 3 year warranty o Supports Namur 89 Wire break
o Direct entry of Callendar-van Dusen coefficients R0, α, δ and β for calibrated RTD sensors.
Lower Cost of Ownership
o Universal input
o Basic digital display capabilities
o Modular construction
o External zero, span, & configuration capability
o Polarity insensitive loop wiring
Communications/Output Options:
o 4-20 mA dc
o HART ® (version 7.0)
All transmitters are available with the above listed output and communications protocol option.
Description
The STT750 SmartLine Temperature Transmitter is designed and manufactured to deliver high performance across varying ambient temperature.
Unique Indication/Display Options
The STT750 modular design accommodates a basic alphanumeric LCD display.
Basic Alphanumeric LCD Display Features
o Modular (may be added or removed in the field)
o 0, 90,180, & 270 degree position adjustments
o Deg C , F, R and Kelvin measurement units
o 2 Lines 16 Characters (4.13H x 1.83W mm)
o Up to 8 display screens with similar formats
o Configurable screen rotation timing (3 to 30 sec)
o Auto/Manual selection for screen rotation
o Displays up to 6 Data-points: Loop PV, CJ Temperature, Sensor, RTD Resistance, Loop output,
Percent Loop.
o Out of Range Indication o PV Status and critical fault indication
Instructions:
Make selections from all Tables Key through XIII using column below the proper arrow. Asterisk indicates availability. Letter (a) refer to restrictions highlighted in the restrictions table