Overview
The Elreha MiniMEP 500 A is a professional-grade temperature and humidity data logger from Elektronische Regelungen GmbH. This recording system captures temperature values and relative humidity over extended periods, providing paperless documentation for regulatory compliance, quality assurance, and environmental monitoring in industrial automation applications.
Key Features
- Dual-input capability for simultaneous temperature and humidity monitoring
- 10-year battery backup for continuous recording without external power
- Individual alarm thresholds (High/Low limits) with adjustable time delays per input
- Graphical LCD dot-matrix display with multi-language support
- Data storage with error message memory tracking last 6 events
- RS-232/RS-485 interface for PC connectivity and data download
- Configurable recording intervals (1–60 minutes)
Technical Specifications
- Sensor Inputs: Up to 4 × TF 501 (temperature probes); MiniMEP 534A supports 2 × 4–20 mA inputs
- Display: LCD dot-matrix, backlighted, 4 languages (German, English, French, Dutch)
- Temperature Range: −160 to +850°C (−256 to +1562°F)
- Recording Intervals: 1, 5, 6, 10, 12, 15, 20, 30, 60 minutes (user-selectable)
- Battery Backup: 10 years (internal battery for data retention)
- Communication: RS-232 or RS-485 serial interface
- Memory: Internal data storage for long-term recording
- Alarms: Individual high/low temperature and humidity limits with adjustable delays and acoustic buzzer
- Digital Inputs: Available on select models
- Isolation: Isolated alarm relay on outputs
- Power: Optional external lead-acid accumulator support for continuous recording
Typical Applications
- Pharmaceutical & Food Manufacturing: Temperature and humidity compliance logging for GMP and cold-chain monitoring
- Warehouse & Storage Management: Environmental condition tracking for sensitive inventory
- HVAC Systems: Long-term climate control verification and troubleshooting
- Server Rooms & Data Centers: Continuous environmental monitoring
- Laboratory & Clean Room Control: Regulatory documentation for controlled environments
- Industrial Equipment Protection: Proof of proper operating conditions for warranty and maintenance records
Compatibility & Replacements
Compatible With
- Windows 95/98/ME/NT/2000/XP PC systems with serial communication ports
- RS-232 and RS-485 serial networks
- Standard TF 501 temperature probe connectors
- Standard external lead-acid accumulators (optional)
- MiniMEP BED software suite for data visualization and reporting
Replaces / Drop-In Replacement For
- MiniMEP 524 A (earlier firmware variants)
- MiniMEP 2524 A (dual-unit configurations)
- ELREHA legacy temperature recorders in the 500-series class
Works With
- MiniMEP BED Control Software (v3.01+) for PC-based data management
- CV-Scheduler software for data backup and report generation
- Standard RS-232/RS-485 terminal and monitoring applications
- ELREHA TF 501 temperature probes and sensor modules
- Windows legacy and modern industrial automation networks via serial bridging








