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"Extremely helpful. They shipped me a replacement unit the next day, and I was up and running within 24 hours. A brand-new replacement from the machinery manufacturer would have had a 7-day lead time."
The Mitsubishi A68RD4 is a high-precision temperature sensor input module designed for integration with Mitsubishi PLC systems. This module is specifically engineered to support Pt100 and JPt100 platinum resistance thermometers, conforming to JIS and DIN standards. The A68RD4 utilises a 4-wire measurement system, ensuring accurate temperature readings by compensating for lead wire resistance.
With a robust design, the A68RD4 offers reliable performance in industrial environments. It features 8 input channels, each capable of detecting temperature ranges from -180°C to 600°C. The module outputs temperature values in 16-bit signed binary data, providing precise and detailed measurements.
The A68RD4 is equipped with advanced functionalities such as disconnection detection, which identifies any disconnection in the platinum resistance thermometer or conductor. Additionally, it allows for conversion enable/disable settings for each channel, optimising sampling time and preventing unnecessary detections on unused channels.
This module is designed with a compact form factor, making it suitable for various industrial applications where space is a constraint. It also includes a 38-point terminal block for secure and straightforward connections. The A68RD4's insulation method ensures safety and reliability, with photocoupler-insulated inputs and a dielectric withstand voltage of 500VAC for one minute.
Ideal for industries requiring precise temperature monitoring and control, the Mitsubishi A68RD4 temperature sensor input module is a dependable choice for enhancing the capabilities of your PLC system.
| Specification | Description |
|---|---|
| Part Number | A68RD4 |
| Manufacturer | Mitsubishi |
| Part Category | Temperature Sensor Input Module |
| Measuring Method | 4-wire type |
| Compatible Sensors | Pt100 (JIS C1604-1989, DIN 43760-1980), JPt100 (JIS C1604-1981) |
| Output Current for Detection | 4.2mA (MIN), 4.7mA (MAX) |
| Output Data | 16-bit, signed binary data (-1800 to 6000: Value to first decimal place 10 times) |
| Temperature Input Range | Pt100: -180 to 600°C (27.10 to 313.71Ω), JPt100: -180 to 600°C (25.80 to 317.28Ω) |
| Accuracy | 1% (accuracy to full-scale) |
| Resolution | 0.025 |
| Conversion Speed | 40ms / 1 channel |
| Number of Input Points | 2 channels/1 module |
| Insulation Method | Photocoupler-insulated (input to PLC power supply), Non-insulated (input to channel) |
| Dielectric Withstand Voltage | 500VAC for 1 minute (input to PLC power supply) |
| Wire Break Detection | Commonly detected on all channels |
| Number of Occupied I/O Points | 32 points |
| Connection Terminals | 20-point terminal block |
| Internal Current Consumption | 0.39A (5VDC) |
| Weight | 0.43kg |
| Dimensions | 250mm (H) x 37.5mm (W) x 131mm (D) |
| Country of Origin | - |
Big thanks to Rob for helping with an urgent request we had on a Friday afternoon. The part we needed was in Europe, and Rob went out of his way to get it ordered and delivered to us by the following Tuesday.City Bearings
Absolutely fantastic service. Rob was very helpful. Great communication. The requested part was shipped in no time.Konrad Eliaszuk
Found the component I was looking for at a great price. Excellent support from the staff as I was paying by wire transfer. Fast delivery and very good packaging.Adriano Tiberi
Extremely helpful. They shipped me a replacement unit the next day, and I was up and running within 24 hours. A brand-new replacement from the machinery manufacturer would have had a 7-day lead time.Sean Conlin
Found the part we needed at the best price. I spoke with Rob to make sure it was actually in stock, as many companies don’t really have it available to ship. It was ready, checked, and shipped, and we received it within a few days from their German stock. Would definitely use again and recommend.Chris Sentance
After ordering an urgent part from Marvo, I received excellent customer service and Rob was very helpful.Claire Hinchliff
Big thanks to Rob for helping with an urgent request we had on a Friday afternoon. The part we needed was in Europe, and Rob went out of his way to get it ordered and delivered to us by the following Tuesday.City Bearings
After ordering an urgent part from Marvo, I received excellent customer service and Rob was very helpful.Claire Hinchliff
Excellent service, especially from Mark, who stayed late to make sure the part arrived the same day since it was a critical component for me, even though it was my first time using Marvo. I will definitely use them again.Josh Holt
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