Product Description
The Yokogawa SAI533‑H63 is a high-precision 8-channel isolated analog input module designed for integration with CENTUM VP and ProSafe‑RS Field I/O (FIO) subsystems. Engineered for demanding industrial environments, it receives 4–20 mA signals from field transmitters and accurately converts them into digital data for process control systems.
Built with intrinsic safety barriers, the H63 variant supports installation in hazardous areas, providing reliable isolation and internal protection without compromising measurement accuracy.
Key Features
-
Eight fully isolated analog input channels
-
Compatible with 4–20 mA DC transmitter signals
-
Over-range capability up to 22 mA
-
Typical input resistance: 250 Ω
-
High accuracy: ±0.1% of span
-
12–16 bit resolution depending on system configuration
-
Channel-to-channel and channel-to-system isolation
-
Delta-sigma A/D conversion for precise measurement
-
Intrinsic safety barriers for hazardous-area deployment
Performance & Diagnostics
-
Typical scan period: 10 ms
-
Low temperature drift for stable readings
-
Built-in diagnostics for open-circuit detection, signal abnormalities, and module health monitoring
Electrical & Environmental Specifications
| Parameter | Specification |
|---|---|
| Power Supply | Provided via FIO baseplate |
| Power Consumption | Approx. 4–6 W |
| Isolation Voltage | 1500 V AC withstand |
| Operating Temperature | 0 to 50 °C |
| Storage Temperature | –20 to 70 °C |
| Humidity | 5–95% RH, non-condensing |
| EMC Compliance | Industrial-grade immunity |
Physical Dimensions
-
Size: 130 × 32 × 140 mm
-
Weight: 0.3 kg
Applications
Ideal for process control, safety instrumented systems, and industrial automation tasks where accurate 4–20 mA measurement and hazardous-area certification are required. Frequently deployed in chemical plants, oil & gas facilities, and refining operations.
FAQ & Comparison
Q: Can the module handle signals outside 4–20 mA?
A: Yes, the input range supports up to 22 mA for temporary over-range conditions.
Q: How does it differ from SAI533‑H61?
A: The H63 version includes intrinsic safety barriers and higher isolation levels suitable for hazardous areas, whereas H61 is designed for standard environments.
