Fieldbus Conductivity Transmitter/ Analyzer
Fieldbus Foundation defines "Fieldbus is a digital, two-way, multi-drop communication link among intelligent measurement and control devices." It is one of several local area networks dedicated for industrial automation. The Internet is having a major impact on information flows. Yesterday's hierarchical systems the field signals used in process instrumentation have been standardized so that control systems and field devices from a variety of suppliers can be interconnected using standard 4 to 20 mA analog signals. A "standardized" digital communication for industrial automation is changing the production system. The FOUNDATION™ fieldbus standard developed by the Fieldbus Foundation™ constitutes the next level of standardization and it is designed to meet modern needs. In addition to having interconnectivity equivalent to that available using 4 to 20 mA analog signals in a conventional field network, FOUNDATION™ fieldbus allows multiple devices to be connected to a single FOUNDATION™ fieldbus, permits the interactive communication of various types of information, and enables the distribution in the field of intelligent functions including self-diagnostics and control functionality. When FOUNDATION™ fieldbus was first proposed, more attention was given to its ability to convey multiple field signals over a single cable and the benefit this would have in reducing wiring costs. But now the focus is on its ability to transmit various types of information in addition to field signals and to distribute intelligence to distributed field devices. These features enable remote monitoring, real-time self-diagnostics, and proactive maintenance of field devices, as well as plant resource management using field communication. This will enable the costs of operating instrumentation systems to be greatly reduced.……
Allen-Bradley 25B-V4P8N104 PowerFlex 525 AC Drive, with Embedded EtherNet/IP and Safety, 120 VAC, 1 Phase, 4.8 Amps, 1.0 HP, 0.75 kW Normal Duty; 1.0 HP, 0.75 kW Heavy Duty, Frame B, IP20 NEMA / Open Type, No Filter.
Allen-Bradley 25B-V6P0N104 PowerFlex 525 AC Drive, with Embedded EtherNet/IP and Safety, 120 VAC, 1 Phase, 6 Amps, 1.5 HP, 1.1 kW Normal Duty; 1.5 HP, 1.1 kW Heavy Duty, Frame B, IP20 NEMA / Open Type, No Filter.
Allen-Bradley 25B-D4P0N114 PowerFlex 525 AC Drive, with Embedded EtherNet/IP and Safety, 480 VAC, 3 Phase, 4 Amps, 2 HP, 1.5 kW Normal Duty; 2 HP, 1.5 kW Heavy Duty, Frame A, IP20 NEMA / Open Type, Filter.
Allen-Bradley 25B-D6P0N104 PowerFlex 525 AC Drive, with Embedded EtherNet/IP and Safety, 480 VAC, 3 Phase, 6 Amps, 3 HP, 2.2 kW Normal Duty; 3 HP, 2.2 kW Heavy Duty, Frame A, IP20 NEMA / Open Type, No Filter.
▶ Pressure Transmitter EJA ▶ Pressure Transmitters EJA-E ▶ Pressue Transmitter EJX ▶ Safety Instrumented System (SIS) ▶ Valve Positioners & Converters ▶ Field Mount Indicators ▶ Temperature Transmitters ▶ Magnetic Flowmeters ▶ Vortex Flowmeter ▶ Ultrasonic Flowmeters ▶ Coriolis Mass Flowmeters - ROTAMASS 3-Series ▶ Variable Area Flowmeters – Rotameters ▶ Device Smart Communicators ▶ PORTABLE AND HANDHELD INSTRUMENTS ▶ Distributed Control System (DCS) ▶ Process Analyzers ▶ Paperless Recorders ▶ Strip Chart Recorders ▶ Data Acquisition Equipment ▶ UT Series Temperature Controllers ▶ UP Series Program Controllers ▶ UM Series Digital Indicators with Alarms ▶ UT100 Series Temperature Controllers ▶ UD Series Manual Setters ▶ Limit Controllers ▶ YS Series Single-loop Controllers
Fieldbus Conductivity Transmitter/ Analyzer
|Detection method||Frequency, read-pulse position and reference voltage are dynamically optimized.|
Minimum: 0 μS/cm
Maximum: 200 mS x C (overrange 1999 mS/cm).
Minimum: 0.005 kΩ/C
Maximum: 999 MΩ x cm
Pt1000: -20 to 250°C (0 to 500°F)
Pt100 and Ni100: -20 to 200°C (0 to 400°F)
8k55 NTC: -10 to 120°C (10 to 250°F)
PB36 NTC: -20 to 120°C (0 to 250°F)
|Step Response||≤8 seconds for 90 % (for 2 decade step)|
|Output Span||Conductivity: Min. 0.01 μS/cm, Max. 1999 mS/cm. (Max 90 % zero suppression)|
Resistivity: Min. 0.001 kΩ x cm, Max. 999 MΩ x cm. (Max 90 % zero suppression)
|Transmission Signals||Isolated output of 4 to 20 mA DC. Burn up (21 mA) or Burn down (3.6 mA when HART or distributor comm. is non-used, 3.9 mA when HART or distributor comm. is used) or pulse of 21 mA to signal failure.|
|Compensation algorithm||NaCl: According IEC60746-3 NaCl tables (default).|
T.C: Two independent user programmable temperature coefficients, from 0 to 3.5 % per °C (°F) by adjustment or calibration.
Matrix: Conductivity function of concentration and temperature. Choice out of 5 preprogrammed matrices and a 25-point user programmable matrix.
|Communications||FOUNDATION Fieldbus H1|
|Ambient temperature||-20 to 50 °C|
|Humidity||10 to 90 % RH (Non-condensing)|
|Display||Black/White 213 x 160 pixels LCD with touch screen|
|Power supply||Nominal 24 volt DC loop powered system.|