The Yokogawa GP20 is a portable data acquisition system built around a 12.1″ TFT touchscreen interface for real-time logging and monitoring across industrial and laboratory environments. Dual-model architecture supports 100 input channels (GP20-1) or 450 input channels (GP20-2), expandable via modular I/O architecture. The capacitive touchscreen accepts stylus input and multi-touch gestures—swipe, pinch, and tap—for field operation without external peripherals.
Technical Specifications
Display & Interface
• 12.1″ TFT color LCD, 800 × 600 resolution
• Capacitive touchscreen with pinch-in/pinch-out and stylus support
Channel Architecture
• GP20-1: up to 100 input channels; GP20-2: up to 450 input channels
• Up to 1000 total channels (input, MATH, communication combined)
• Up to 500 maximum I/O channels
• Mathematical channels: 100 (GP20-1) or 200 (GP20-2)
• Communication channels: 300 (standard) or 500 (large memory)
Modularity & I/O
• Up to 10 I/O modules; 9 GM expansion units maximum
• Up to 6 expandable I/O and GM sub units, each supporting 6 modules
• Seven module types: analog input, analog output, digital input, digital output, combined digital I/O, pulse input, and PID control
• Analog input signals: DC voltage, thermocouple, RTD, TTL/contact (DI), DC current (mA)
• Analog output: isolated current with retransmission and manual control
Memory & Storage
• Flash memory: 500 MB (GP20-1) or 1.2 GB (GP20-2)
• SD/SDHC cards up to 32 GB (FAT32/FAT16)
• USB flash memory via USB interface option
Recording Performance
• Minimum recording interval: 100 ms (I/O, math, communication); 500 ms (profile function)
• Data types: display, event, alarm summary, report, health monitor logs
• Analog data: 12 bytes/channel; digital I/O: 4 bytes/channel
– Key Features
• Modular expansion: connect up to 10 modules directly; scale with 9 GM sub units
• Multi-signal conditioning: thermocouple, RTD, voltage, current, digital protocols
• Isolated analog output for signal retransmission
• Field-ready touchscreen operation—no laptop required
– Typical Applications
Temperature and pressure monitoring, process data logging, equipment validation testing, multi-channel environmental monitoring, industrial troubleshooting.
– Compatibility & Integration
SD/SDHC card export, USB interface, isolated I/O modules for noise-prone industrial environments.
