Overview
Yokogawa AAT145 TC/RTD Input Modules are specialized devices designed to receive and process signals from thermocouples (TC) and Resistance Temperature Detectors (RTD). These modules play a crucial role in industrial automation and control systems, enabling accurate temperature measurement and control.
Input Specifications
- Number of Input Channels: 16 isolated channels.
- Input Signal Types:
- Thermocouple (TC): JIS C1602:1995 (*1), IEC584:1995 Types J, K, E, B (*2), R, S, T, N.
- Millivolt (mV): -100 to 150 mV, -20 to 80 mV.
- Switching Input Signals: TC/mV can be set individually for channels CH1 to CH16.
Electrical Characteristics
- Allowable Input Voltage: ±5 V.
- Withstanding Voltage:
- Between input and system: 500 V AC (for single card: 1500 V AC) for 1 minute.
- Between input channels: 200 V AC for 1 minute.
- Input Resistance:
- Power ON: 1 MΩ or larger.
- Power OFF: 1 MΩ or larger.
Accuracy and Performance
- Accuracy: ±40 µV.
- Allowable Total Resistance: Signal source plus wiring, 1000 Ω or less.
- Effect of Allowable Signal Source Resistance: ±20 µV for 1000 Ω.
- Reference Junction Compensation Accuracy: ±1 °C (*5) (6).
Data Update and Burn-out Features
- Data Update Period: 1 second.
- Burn-out Function:
- All channels can be set together.
- Setting: Not available/Available (UP/DOWN).
- Detection time: 60 seconds.
Temperature Drift and Power Requirements
- Temperature Drift: ±80 µV/10 °C.
- Maximum Current Consumption: 350 mA (5 V DC).
Additional Specifications
- Weight: 0.3 kg.
- External Connection: Dedicated cable (KS1).
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- Address: No.601, Hongwen Liuli, Siming District, Xiamen, China
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