Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Yokogawa ALP121-00 is a high-precision industrial analog input module designed for use in process automation systems. It is engineered to convert various analog signals such as voltage or current into digital data that can be processed by control systems. This module is part of Yokogawa’s advanced lineup of data acquisition devices, ensuring reliable and accurate measurements in demanding industrial environments. With robust build quality and versatile compatibility, the ALP121-00 is suitable for integration into distributed control systems (DCS) and supervisory control and data acquisition (SCADA) systems.
Product Parameters
| Parameter | Specification |
|---|---|
| Model Number | ALP121-00 |
| Input Signal Type | Analog Voltage / Current Input |
| Input Range | ±10 V, 0-20 mA, 4-20 mA (configurable) |
| Conversion Resolution | 16-bit |
| Sampling Rate | Up to 10 samples per second |
| Isolation | Electrical isolation between channels and system ground |
| Power Supply Voltage | 24 V DC (typical) |
| Power Consumption | 2.5 W |
| Dimensions (WxHxD) | 126.7 × 32.8 × 130 mm |
| Weight | 0.3 kg |
| Operating Temperature | -10°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Humidity Range | 5% to 95% RH, non-condensing |
| Communication Interface | Compatible with Yokogawa DCS communication buses |
Product Applications
The ALP121-00 analog input module is widely used across various industries where precise analog data collection is critical. Typical applications include:
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Chemical and Petrochemical Plants: Monitoring sensor outputs such as temperature, pressure, and flow.
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Power Generation: Capturing analog signals from turbines, boilers, and generators for performance analysis.
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Water and Wastewater Treatment: Measuring process variables like pH, conductivity, and dissolved oxygen.
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Food and Beverage Industry: Ensuring accurate control of processes involving temperature and fluid levels.
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Pharmaceutical Manufacturing: Precise measurement of analog inputs in cleanroom and sterile environments.
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General Industrial Automation: Collecting sensor data in factory automation and process control systems.
Product Advantages
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High Accuracy and Stability: The ALP121-00 provides 16-bit resolution, enabling fine-grained measurement with minimal drift over time.
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Versatile Input Compatibility: Supports multiple analog input types and configurable input ranges, allowing flexible deployment.
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Robust Design: Industrial-grade components and electrical isolation ensure reliable operation in harsh environments.
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Compact Size: Small footprint enables installation in space-constrained control cabinets.
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Easy Integration: Fully compatible with Yokogawa’s DCS and SCADA systems, facilitating seamless data acquisition.
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Low Power Consumption: Efficient power usage reduces overall system energy requirements.
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Wide Operating Temperature Range: Suitable for deployment in varied climate conditions.
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Safety and Compliance: Meets relevant industrial standards for safety and electromagnetic compatibility.
Frequently Asked Questions (FAQ)
Q1: What types of analog signals does the ALP121-00 support?
A1: It supports both voltage inputs (±10 V) and current inputs (0-20 mA, 4-20 mA).
Q2: How is the ALP121-00 powered?
A2: The module requires a 24 V DC power supply.
Q3: What is the accuracy of the analog-to-digital conversion?
A3: The device uses 16-bit resolution ADC, ensuring high accuracy.
Q4: Can the module be used in explosive environments?
A4: The ALP121-00 is not intrinsically certified for hazardous areas; consult Yokogawa for suitable certified models.
Q5: What is the module’s operating temperature range?
A5: It operates reliably between -10°C and +55°C.
Q6: How many input channels does the module have?
A6: This model typically supports one analog input channel.
Q7: Is the module isolated electrically?
A7: Yes, it provides electrical isolation between input channels and system ground.
Q8: How is the module connected to the control system?
A8: It connects via Yokogawa’s proprietary communication buses compatible with their DCS.
Q9: What maintenance is required for the ALP121-00?
A9: Routine visual inspections and cleaning are recommended; no frequent calibration is needed due to its stability.
Q10: Are there alternative models for different input types?
A10: Yes, Yokogawa offers a range of analog input modules tailored for different signal types and resolutions.
Recommended Related or Same Series Models
| Model Number | Description | Input Type | Resolution | Size (WxHxD mm) | Weight (g) |
|---|---|---|---|---|---|
| ALP121-01 | Analog Input Module with thermocouple input | Thermocouple | 16-bit | 45 x 110 x 100 | 320 |
| ALP122-00 | Analog Input Module for resistance temperature detectors (RTD) | RTD | 16-bit | 45 x 110 x 100 | 320 |
| ALP123-00 | Analog Input Module supporting higher sampling rate | Voltage/Current | 18-bit | 45 x 110 x 100 | 320 |
| ALP124-00 | Analog Output Module | Analog Output | 16-bit | 45 x 110 x 100 | 320 |
| ALP125-00 | Multiplexer Analog Input Module | Multiplexed Analog | 16-bit | 60 x 110 x 100 | 350 |
| ALP126-00 | Analog Input Module with built-in signal conditioning | Voltage/Current | 16-bit | 45 x 110 x 100 | 320 |
Recommended Popular Models from Yokogawa Brand
| Model Number | Description | Input Type | Resolution | Size (WxHxD mm) | Weight (g) |
|---|---|---|---|---|---|
| DCS1000-ALP121 | Standard Analog Input Module | Voltage/Current | 16-bit | 45 x 110 x 100 | 320 |
| DCS1000-ALP131 | Analog Input Module for Thermocouples | Thermocouple | 16-bit | 45 x 110 x 100 | 320 |
| DCS1000-ALP141 | Analog Input Module for RTD | RTD | 16-bit | 45 x 110 x 100 | 320 |
| DCS1000-AOP101 | Analog Output Module | Voltage/Current | 16-bit | 45 x 110 x 100 | 320 |
| DCS1000-DIP101 | Digital Input Module | Digital Input | – | 45 x 110 x 100 | 300 |
| DCS1000-DOP101 | Digital Output Module | Digital Output | – | 45 x 110 x 100 | 300 |
