Product Overview
The Yokogawa F9342BF functions as the central processing unit for the F9342 series field devices. This CPU assembly manages all measurement calculations, communication tasks, and diagnostic routines within the transmitter system. Process control installations depend on this module for reliable data acquisition and signal conversion. The unit’s firmware ensures consistent performance across varying process conditions.
Technical Specifications
This CPU assembly integrates directly into compatible Yokogawa transmitter housings. The Yokogawa F9342BF features a dedicated microprocessor optimized for real-time pressure and temperature processing. Its firmware architecture supports multiple communication protocols for flexible system connectivity. The module’s onboard memory stores configuration parameters and calibration data securely.
| Parameter | Specification |
|---|---|
| Product Type | CPU Assembly / Processor Board |
| Series Compatibility | Yokogawa F9342 Series Transmitters |
| Processor Type | Dedicated microcontroller for process measurement |
| Memory | Flash memory for firmware; EEPROM for calibration data |
| Data Resolution | 24-bit A/D conversion |
| Update Rate | 50 ms typical |
| Communication Protocols | BRAIN, HART (depending on variant) |
| Output Type | 4-20 mA loop-powered (digital superimposed) |
| Diagnostics | Built-in self-test with status reporting |
| Energy Storage | EEPROM retains configuration without power |
| Supply Voltage | 12 to 42 V DC (loop power) |
| Current Consumption | 4 mA minimum, 20.5 mA maximum |
| Dimensions (W x H x D) | 45 mm x 70 mm x 35 mm (board only) |
| Weight | Approximately 0.12 kg |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -50°C to +100°C |
Processing Capabilities
The Yokogawa F9342BF executes high-speed A/D conversions with 24-bit resolution for exceptional accuracy. Its proprietary algorithms linearize sensor outputs and compensate for temperature effects automatically. The processor handles both pressure and temperature data from multiple sensing elements. This board’s fast update rate ensures responsive control loop performance.
Firmware and Configuration
The CPU assembly stores its operating firmware in flash memory for field upgradeability. The Yokogawa F9342BF retains all user-configured parameters in non-volatile EEPROM storage. Users can reconfigure measurement ranges and output functions via digital communication. The processor also stores factory calibration coefficients for accurate long-term performance.
Integration and Compatibility
This CPU board mates directly with the sensor module and output electronics. The Yokogawa F9342BF connects to the transmitter’s terminal block through a flexible ribbon cable. Its standardized interface allows replacement without recalibrating the entire instrument. Field technicians can swap this assembly quickly during maintenance procedures.
Application Scenarios
Manufacturing plants use this processor in differential pressure flow measurement applications. It also serves in level measurement and filter monitoring systems. The Yokogawa F9342BF provides reliable processing for critical process variables.
Details
| Weight | 0.12 kg |
|---|---|
| Dimensions | 45 × 70 × 35 mm |
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