The MASIBUS 8204 (Part No. 13080262) is a high-performance, multi-channel process indicator and protection relay designed for continuous monitoring of critical parameters in industrial environments. Housed in a compact 1/8 DIN enclosure, this unit offers a flexible and cost-effective solution for applications requiring reliable alarm annunciation and data acquisition .
Equipped to handle a universal input on each of its four channels, the 8204 accepts signals from Thermocouples (E, J, K, T, B, R, S, N), RTDs (Pt100), current (mA), and voltage inputs, making it exceptionally versatile for monitoring temperature, pressure, flow, and level . The specific model 13080262 features a standard 85-265V AC power supply, ensuring compatibility with global industrial mains power .
Key Features
- Multi-Channel Monitoring: Accepts 4 universal analog inputs, configurable for various sensor types .
- High Accuracy & Fast Sampling: Provides ±0.1% of FS accuracy with fast sampling rates for instantaneous relay action .
- Flexible Alarm Management: Equipped with 4 relays that offer full mapping and logic flexibility. Users can program trip setpoints individually or group-wise for comprehensive protection .
- Dual-Line Display: Features a bright 4-digit, 0.56″ red display for the Process Value (PV) and a separate green display for Channel Number, allowing for clear and easy reading .
- Industrial Communication: Includes a built-in isolated RS485 serial communication port with Modbus RTU protocol for seamless integration with PLC, DCS, and SCADA systems .
- Compact Design: 1/8 DIN size (48x96x120mm) with simple front-panel programming and password protection .
Technical Specifications
| Parameter | Specification |
|---|---|
| Model / Part No. | 8204 / 13080262 |
| Input Type (per channel) | Thermocouple (E,J,K,T,B,R,S,N), RTD (Pt100), Current, Voltage |
| Accuracy | ±0.1% of FS ±1 Count |
| Sampling Rate | 100 mSec (TC/mV/V/mA) / 200 mSec (RTD) |
| Relay Outputs | 4 Nos. (Single Changeover C, NO), Rating: 2A @ 230V AC / 30V DC |
| Communication | RS485, Modbus RTU Protocol |
| Power Supply | 85-265V AC / 125-300V DC |
| Power Consumption | <10 VA |
| Display | PV: 0.56″ Red, Channel: 0.4″ Green |
| Isolation Voltage | 1500V AC (Primary to Secondary) |
| Dimensions (WxHxD) | 48 x 96 x 120 mm |
| Weight | Approx. 300g |
Applications
The MASIBUS 8204 is engineered for a wide range of industrial monitoring and protection tasks, including:
- Generator & Motor Protection: Monitoring winding and bearing temperatures .
- Rotating Equipment: Monitoring temperature of air compressors, pumps, fans, and blowers .
- Process Control: Ideal for drying ovens, retorts, fermentation, and heat treatment processes .
- Substation Monitoring: For power monitoring and as a distributed I/O module for SCADA systems
