The Yokogawa AAP135 functions as a specialized pulse input module for Centum VP and CS 3000 distributed control systems. It accurately measures frequency, flow rate, and totalized counts from pulse-generating field devices. This module enables precise monitoring of turbines, flowmeters, and rotating equipment in process applications.
Advanced Pulse Counting and Signal Processing
We design this module with 8 pulse input channels for comprehensive monitoring of multiple rotating devices. Each channel accepts various pulse signals from turbine flowmeters, encoders, and proximity switches. The module includes high-speed counters for accurate totalization and frequency measurement. Consequently, engineers obtain reliable data for critical process calculations and reporting.
Technical Specifications and Physical Characteristics
The AAP135 utilizes high-resolution counting circuits for precise measurement of pulse frequencies. It features input isolation to protect the system from electrical noise and ground loops. The module includes both instantaneous frequency and accumulated total values for each channel. This design supports comprehensive monitoring of flow rates and equipment runtimes.
| Specification | Details |
|---|---|
| Product Model | AAP135 |
| Module Type | Pulse Input Module |
| Compatible Systems | Centum VP, Centum CS 3000, Centum CS 1000 |
| Number of Channels | 8 pulse input channels |
| Input Signal Types | Voltage pulse, contact closure, open collector |
| Input Voltage Range | 0–24 V DC |
| Maximum Count Rate | 10 kHz |
| Counter Resolution | 32-bit accumulator per channel |
| Measurement Modes | Frequency, period, totalized count |
| Isolation | Channel-to-channel and channel-to-system isolation |
| Input Protection | Overvoltage and reverse polarity protection |
| Physical Dimensions | Standard Yokogawa I/O module format |
| Module Weight | Approximately 0.40 kg (0.88 lb) |
| Power Consumption | 4.5 W maximum |
| Terminal Type | Pressure clamp terminal block |
Seamless Integration with Centum Control Systems
You can configure this module effortlessly using the Centum engineering workstation software environment. The Yokogawa AAP135 automatically integrates with the system’s I/O database for straightforward setup. It supports both local and remote I/O configurations for maximum installation flexibility. Therefore, process engineers achieve optimal monitoring of flow and speed measurements throughout the plant.
Furthermore, this module excels in applications requiring accurate pulse counting and frequency measurement. Industries like oil and gas, chemical processing, and power generation benefit from its precision. The 32-bit accumulators provide long-term totalization without overflow concerns for extended operations. This capability ensures accurate material balance calculations and custody transfer measurements.
We source this precision module from Yokogawa Electric Corporation, a global leader in process automation solutions. As part of the Centum series I/O family, it guarantees compatibility with existing and new installations. Choosing the AAP135 means investing in reliable pulse input monitoring for critical rotating equipment.
Technical Specifications Overview
| Specification | Details |
|---|---|
| Product Model | AAP135 |
| Module Type | Pulse Input Module |
| Compatible Systems | Centum VP, Centum CS 3000, Centum CS 1000, Centum CS 3000 R3 |
| Number of Channels | 8 pulse input channels |
| Input Signal Types | Voltage pulse, contact closure, open collector |
| Input Voltage Range | 0–24 V DC |
| Input Threshold | 2.5 V DC nominal |
| Maximum Count Rate | 10 kHz |
| Minimum Pulse Width | 50 µs |
| Counter Resolution | 32-bit accumulator per channel |
| Measurement Modes | Frequency, period, totalized count |
| Frequency Range | 0.01 Hz to 10 kHz |
| Accuracy | ±0.1% of reading |
| Isolation | Channel-to-channel and channel-to-system isolation |
| Withstand Voltage | 1500 V AC for one minute |
| Input Protection | Overvoltage and reverse polarity protection |
| Physical Dimensions | Standard Yokogawa I/O module format |
| Module Width | 30 mm |
| Module Height | 128 mm |
| Module Depth | 120 mm |
| Module Weight | Approximately 0.40 kg (0.88 lb) |
| Power Consumption | 4.5 W maximum |
| Current Draw | 200 mA from 5 V DC, 80 mA from 24 V DC |
| Terminal Type | Pressure clamp terminal block |
| Status Indicators | LED for channel and module status |
| Operating Temperature | 0 to 50°C (32 to 122°F) |
| Storage Temperature | -20 to 70°C (-4 to 158°F) |
| Series | Centum I/O |
| Manufacturer | Yokogawa Electric Corporation |
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |
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