Overview: The MRR-900 Series is a CE-marked signal converter designed for compact DIN size applications. It features an RS485 interface, LED indication for flow rate and input frequency, and configurable alarm limits. The device operates on a power source ranging from 12V to 24V and can supply power to sensors.
Features:- Built-in RS485 interface
- LED indication for flow rate and input frequency
- Configurable upper and lower alarm limits
- Power source: 12V to 24V
- Available with voltage output version
Principle of Operation: The converter detects sensor signals in pulse output type, converts them to digital signals, and connects to a computer. It uses a comparator with hysteresis for signal regulation and allows for remote setup via RS485 or front switches. Setup data is stored in EEPROM, eliminating the need for reconfiguration after power-off.
Specifications:- Input Signal: Voltage, current, frequency (1Hz to 1kHz), duty ratio 1:1
- Communication: RS485, baud rate options (1200 to 9600), half-duplex
- Output: Constant voltage output for MRR-930 and MRR-940, selectable current/voltage output
- Power Supply: 12V to 24V DC, 2.5A max
- Environmental: Operating temperature 0 to 50°C, humidity 30% to 95% RH
- Dimensions: 24mm x 48mm DIN size
Ordering Information: The document provides a code-based system for ordering different versions and specifications of the converter, including alarm output and analog output options.
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