KU-7R Komyo 24VDC LCD Gas Detector Alarm Unit

Description

The Komyo KU-7R is a high-performance, panel-mounted gas detector alarm unit designed for continuous monitoring of combustible, toxic, and oxygen-related hazards. This modular CPU-controlled system features a dual-display interface consisting of a 51-segment LCD bar meter and a 4-digit digital readout for precise real-time concentration tracking. Engineered for industrial reliability, it incorporates advanced signal processing including zero-suppression to eliminate baseline drift, a peak-hold function for capturing maximum exposure levels, and a 2-step user-configurable alarm system with 15 adjustable levels. The unit provides a standard DC4-20mA analog output for seamless integration into PLC or SCADA systems and supports a wide range of detection principles including catalytic combustion, NDIR, and galvanic cell technologies.

KU-7R Specifications
Model: KU-7R
Brand: Komyo Rikagaku Kogyo K.K. (Kitagawa)
Product Category: Fixed Type Gas Alarm System / Indicator Unit
Input Voltage: 24VDC ±10%
Power Consumption: Approx. 3.5VA
Display Type: 51-segment LCD Bar Meter and 4-digit LCD Digital Meter
Measuring Range: 0-100%LEL (Combustible), 0-25vol% (O2), 0-2000ppm (Toxic)
Detection Principles Supported: Catalytic Combustion, Heat Wire Semiconductor, NDIR, Chronoamperometry, Galvanic Cell
Alarm Accuracy: Within ±25% of alarm set point
Alarm Setting: 2-step adjustable (15 levels), upper or lower limit
Alarm Method: Flashing Red LED, LCD flashing, Intermittent buzzer
Analog Output: DC4-20mA (Load resistance 300Ω or less)
Alarm Contact Output: Non-voltage 1a or 1b (Capacity 250VAC 2A / 30VDC 2A)
Operating Temperature: -10 to 40°C
Operating Humidity: 10 to 90% RH (Non-condensing)
Dimensions: 36(W) x 144(H) x 176(D) mm
Weight: Approx. 0.8kg
Mounting Type: Panel-mount (Built-in)
Functions: Zero adjustment, Span adjustment, Peak-hold, Zero suppression, Error code display

KU-7R Applications
Continuous atmospheric monitoring in marine engine rooms, offshore oil and gas platforms, petrochemical refineries, and industrial chemical processing plants. Mandatory safety integration for multi-point gas detection panels in confined workspaces, wastewater treatment facilities, and semiconductor manufacturing cleanrooms.

Additional information