RUDOLF R-ELRM44V-10 Product Description

Overview

RUDOLF R-ELRM44V-10 is an ELRM series loop resistance monitoring relay manufactured by Rudolf, R-ELRM44V-10 is the complete model designation of this unit. The RUDOLF R-ELRM44V-10 continuously monitors the continuity and resistance value of fire alarm circuits, detects circuit open, short circuit and abnormal resistance conditions and outputs alarm signals. This R-ELRM44V-10 loop monitoring relay serves as a reliable Rudolf ELRM series monitoring relay, widely used for fire detection, smoke detector loop supervision in fire alarm control systems of the Rudolf ELRM series monitoring relay.

Features

This RUDOLF R-ELRM44V-10 adopts high-precision resistance sampling circuit for the Rudolf ELRM series monitoring relay. It supports adjustable resistance threshold setting, with open-circuit fault and short-circuit fault identification function. It is equipped with LED status indicators for normal, fault and alarm state display, and relay contact output for interlock with fire alarm panel. The internal circuit is designed with isolation and anti-interference structure to reduce false alarms caused by field cable interference. The RUDOLF R-ELRM44V-10 uses DIN rail mounting design, convenient for installation inside fire control cabinets. It meets fire protection EMC requirements and runs stably for long-term continuous monitoring of the fire detection loop of the R-ELRM44V-10 loop monitoring relay.

Specs

The RUDOLF R-ELRM44V-10 series: loop resistance monitoring relay. Monitoring object: fire detection loop cable resistance. Power supply: 24V DC. Output: relay contact. Indication: LED status and fault indication. Threshold: adjustable resistance setting. Mounting: DIN rail NS35. Protection rating: IP20. The RUDOLF R-ELRM44V-10 complies with fire protection relevant standards and CE requirements as a R-ELRM44V-10 loop monitoring relay.

Principle

RUDOLF R-ELRM44V-10 performs real-time sampling of the loop resistance of the fire circuit. The RUDOLF R-ELRM44V-10 control circuit compares the measured resistance value with the preset threshold. When the line is broken, shorted or the resistance exceeds the set range, it triggers fault indication and relay output. The monitoring circuit keeps working normally without interfering with the signal transmission of the fire detectors on the loop. The resistance sampling structure of the Rudolf ELRM series monitoring relay realizes reliable supervision of fire alarm lines.

Applications

This RUDOLF R-ELRM44V-10 is widely used in factory buildings, commercial buildings, subway stations, hotels and warehouse fire control rooms. It is applied for supervision of smoke detector loops, heat detector loops and fire alarm signal lines. It is used for spare replacement and retrofit of existing Rudolf fire loop monitoring circuits. The RUDOLF R-ELRM44V-10 delivers dependable line fault monitoring for fire alarm systems as a proven R-ELRM44V-10 loop monitoring relay.