Products Description
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📗 Yokogawa AAR145 RTD/POT Input Module
Technical Specifications
| Item | Specification |
|---|---|
| Model | AAR145 |
| Number of Input Channels | 16 channels, isolated |
| Input Signal Type | RTD: Pt100 (3-wire) POT: Total resistance 100 Ω to 10 kΩ, span ≥50% |
| Allowable Input Voltage | ±5 V |
| Withstanding Voltage | 1500 V AC (system to input), 200 V AC (channel to channel), 1 min |
| Input Resistance (Power ON) | ≥ 1 MΩ |
| Input Resistance (Power OFF) | ≥ 1 MΩ |
| Accuracy | RTD: ±150 mΩ POT: ±0.2 %/FS |
| Allowable Wiring Resistance | RTD: ≤150 Ω per wire |
| Measurement Current | RTD: 1 mA |
| Data Update Period | 1 second |
| Burn-out Detection | Configurable (Enable/Disable), detection time: 60 seconds |
| Temperature Drift | RTD: ±0.3 Ω/10 °C POT: ±0.4 %/10 °C |
| Max Current Consumption | 350 mA (5 V DC) |
| Dimensions (W x H x D) | 130 x 127.2 x 32.8 mm |
| Weight | 0.3 kg |
| External Connection | Dedicated cable (KS8/AKB335) |
FAQ
Frequently Asked Questions (FAQ)
Q1: What types of sensors are supported by the AAR145 module?
A1: It supports RTD (e.g., Pt100) and potentiometer (POT) inputs, with independent configuration per channel.
Q2: Does the module offer electrical isolation?
A2: Yes, isolation exists between system and input, and also between channels.
Q3: How are RTD and POT inputs configured?
A3: Each channel can be independently configured as either RTD or POT input.
Q4: What is the maximum allowable wiring resistance?
A4: For RTD inputs, the wiring resistance must not exceed 150 Ω per wire.
Q5: What is the measurement accuracy of the module?
A5: The RTD input has an accuracy of ±150 mΩ, while POT input is ±0.2 % of full scale.
Q6: Is the module suitable for redundant system configurations?
A6: Yes, the AAR145 supports dual-redundant operation.
Q7: What is the data update period of the module?
A7: The data update period is 1 second, suitable for slowly changing signals like temperature.
Q8: Can the module be used in intrinsically safe zones?
A8: Yes, but only with an isolation barrier, not with a Zener barrier.
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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.
