Products Description
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Technical Specifications – Yokogawa AAM21J Input Module
| Parameter | Specification |
|---|---|
| Model | AAM21J |
| Input Types | mV, Thermocouple (TC), RTD |
| Supported Thermocouples | Types J, K, E, B, R, S, T, N (IEC584-1995 compliant) |
| Supported RTDs | PT100, JPT100 (IEC751-1995 compliant) |
| Input Range (mV) | Typically ±100 mV |
| Input Range (TC) | Varies per type, typically up to ±70 mV |
| Input Range (RTD) | Typically -200 to 850 °C depending on type |
| Number of Channels | 8 channels |
| Resolution | 16-bit A/D converter |
| Isolation | Channel-to-channel and channel-to-ground isolation |
| Cold Junction Compensation | Built-in compensation per channel |
| Diagnostics | Open circuit detection, burnout detection |
| Mounting Method | Mounted in analog I/O nest (e.g., AMN11) |
| Power Supply | Supplied via backplane through I/O nest |
| Conformance | IEC584-1995, IEC751-1995 |
| Module Dimensions (W × H × D) | 42.9 × 130 × 146.8 mm |
| Weight | 0.10 kg |
| Applicable System | CENTUM CS, CS 1000/3000, CENTUM VP |
FAQ
Frequently Asked Questions (FAQ)
Q1: What type of signals can the AAM21J module accept?
A1: The AAM21J accepts millivolt signals, thermocouples (Types J, K, E, B, R, S, T, N), and RTDs (PT100, JPT100).
Q2: Is the AAM21J compatible with CENTUM VP systems?
A2: Yes, it is fully compatible with CENTUM VP, as well as earlier CENTUM CS and CS 1000/3000 systems.
Q3: Does the AAM21J support cold junction compensation for thermocouples?
A3: Yes, it includes built-in cold junction compensation for each channel.
Q4: How many channels does the AAM21J module provide?
A4: It provides 8 input channels, each individually isolated.
Q5: Can the AAM21J detect open circuit conditions in sensors?
A5: Yes, it has built-in diagnostics for open circuit and burnout detection.
Q6: What is the module’s isolation characteristic?
A6: It features channel-to-channel and channel-to-ground isolation for enhanced signal integrity.
Q7: Which analog I/O nest is suitable for installing the AAM21J?
A7: It is typically installed in the AMN11 analog I/O module nest.
Q8: Is there any difference between AAM21 and AAM21J?
A8: Yes. The AAM21J conforms to newer international standards (IEC584-1995, IEC751-1995), providing improved accuracy and compatibility for global applications.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
