Overview
The Elreha MiniMEP 424 A is a robust temperature data logging system designed for long-term, paperless recording of temperature values in industrial and regulated environments. Built by ELREHA, a German specialist in electronic control systems, this system provides continuous temperature monitoring without requiring a personal computer or external equipment. It meets EU Standard EN 12830 and is ideal for 21 CFR compliance in food storage, pharmaceutical, and HACCP-regulated applications.
Key Features
- Long-term data storage: Records up to 20 years of temperature data; storage capacity is unlimited even without mains voltage
- Real-time clock with battery backup: Typical 10-year backup ensures continuous operation and accurate time-stamped logging
- Monitored sensor inputs: Up to 4 sensor inputs with individual alarm setpoints (high/low) and configurable time delay per input
- LC dot matrix display: Backlighted display shows current temperature, time, and date; supports four selectable languages (German, English, French, Dutch)
- Networkable via interface: Dual communication ports (RS-232 and RS-485) enable easy integration into monitoring systems
- Alarm relay and buzzer: Isolated alarm relay (SPDT) and built-in acoustic alarm for excursions
Technical Specifications
- Sensor Inputs: Max. 4 × TF 501 temperature sensors
- Display Resolution: −160 to +850°C (0.1K) or −256 to +1562°F (0.2°F)
- Display Accuracy: ≤1K / Accuracy Class S, A, 1
- Digital Inputs: 3 × 230V (freely usable)
- Output Relay: 1× SPDT, potential-free, 4A @ 250VAC
- Communication Interfaces: 1× RS-232, 1× RS-485
- Battery Backup: Typical 10 years; optional lead accumulator interface for extended recording without mains
- Calibration: Factory-set, maintenance-free
- Display Languages: German, English, French, Dutch
- Operating Standards: Compliant with EU EN 12830
Typical Applications
The Elreha MiniMEP 424 A is widely deployed in:
- Cold chain monitoring (refrigerated transport, storage, and warehousing)
- Pharmaceutical and laboratory temperature control validation
- Food storage and HACCP compliance documentation
- Industrial freezing and high-temperature processes
- Regulatory audit trails requiring independent temperature records
- Climate chamber and environmental test chambers
Compatibility & Replacements
Compatible With
- Standard TF 501 temperature sensor probes
- 4–20 mA sensor transmitters (MiniMEP x34 A models)
- External lead accumulator charging (optional)
- RS-232/RS-485 serial communication networks
- PC-based data extraction via CV-Scheduler software
Replaces / Drop-In Replacement For
The MiniMEP 424 A is part of the MiniMEP 400-series family. For specific model interchangeability and drop-in replacements, verify compatibility with your system integrator or facility manager, as predecessor models may have different software versions or sensor configurations.
Works With
- ELREHA CV-Scheduler software (data readout and backup)
- Standard RS-232/RS-485 data acquisition systems
- Excel and standard database formats (via software export)
- Compliance documentation systems (21 CFR, HACCP, EN 12830)
