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CAREL Refrigerant Gas Leakage Detector



CAREL REFRIGERATION SAFETY & MONITORING

CAREL GLD Small Gas Leakage Detector

GDSB Built-in • GDSR Remote Sensor

Intelligent fixed refrigerant gas leakage detection for cold rooms, freezer rooms and commercial or industrial refrigeration systems. Available for selected HFC, HFO, hydrocarbon, R744 CO₂ and R717 ammonia refrigerants.

IP67 Protection Bluetooth / RILEVA TE RS485 Modbus Alarm Relay Outputs

Continuous Refrigerant Leak Detection for Safer Refrigeration

The CAREL GLD Small Refrigerant Gas Leakage Detector is a fixed gas monitoring device designed to detect refrigerant leakage in environments containing commercial and industrial refrigeration equipment.

The detector continuously monitors the surrounding atmosphere and provides warning or alarm signals when the configured gas concentration thresholds are exceeded.

Featuring LED diagnostics, configurable alarm relays, analogue outputs, RS485 Modbus communication and Bluetooth connectivity through the CAREL RILEVA TE app, GLD Small can operate independently or integrate with compatible CAREL and third-party monitoring systems.

Key Features & Benefits

Continuous Gas Monitoring

Designed for fixed installation where refrigerant gas leakage could occur.

Early Warning & Alarms

Separate configurable warning and alarm thresholds with visual status indication and relay outputs.

IP67 Enclosure

Protected detector design for suitable refrigeration environments, subject to correct installation.

Bluetooth Configuration

CAREL RILEVA TE app supports configuration, monitoring and service functions.

Flexible System Integration

RS485 Modbus RTU, configurable analogue signal and relay outputs for compatible supervisory systems.

Replaceable Sensing Element

Pre-calibrated replacement sensor modules are available according to the detected refrigerant family.

Select by Refrigerant & Sensor Technology

Different sensing technologies are used depending on the refrigerant that needs to be detected.

GROUP 1 / 2 / 3

Semiconductor

For specified refrigerant blends, HFC/HFO and hydrocarbon refrigerant groups.

Examples: R32, R134a, R404A, R290
CO₂ DETECTION

Infrared

Dedicated infrared sensing technology for refrigerant carbon dioxide monitoring.

R744 / CO₂
AMMONIA DETECTION

Electrochemical

Dedicated electrochemical sensing element for ammonia refrigerant leakage detection.

R717 / NH₃

Gas Group Selection Guide

Group Technology Examples
Group 1 Semiconductor R32, R410A, R448A, R449A, R454B, R455A
Group 2 Semiconductor R22, R134a, R404A, R513A, R1234yf
Group 3 Semiconductor R290, R600a, R1270, R1150
CO₂ Infrared R744
Ammonia Electrochemical R717

Examples only. Always match the detector's calibrated sensor group and configured gas to the exact refrigerant used in the system.

CAREL GLD Small Part Numbers

Expand the built-in or remote-sensor category to view the manufacturer-listed model codes.

GDSB Series – Built-in Sensor Models
Part Number Detection Type
GDSBI20C00 R744 CO₂ – Infrared
GDSBE19C00 R717 Ammonia – Electrochemical
GDSBSMXC00 Group 1 – Semiconductor
GDSBSHFC00 Group 2 – Semiconductor
GDSBSHCC00 Group 3 – Semiconductor
GDSR Series – Remote Sensor Models
Part Number Detection Type
GDSRI20C00 R744 CO₂ – Infrared
GDSRE19C00 R717 Ammonia – Electrochemical
GDSRSMXC00 Group 1 – Semiconductor
GDSRSHFC00 Group 2 – Semiconductor
GDSRSHCC00 Group 3 – Semiconductor

Simple LED Status Identification

 
Green

Normal operation

 
Yellow

Warning threshold exceeded

 
Red

Alarm threshold exceeded

A flashing green LED indicates warm-up. For complete diagnostic indications, refer to the CAREL manual.

Technical Specifications

Power Supply 24 VAC / VDC ±20%, 50/60 Hz
Power Consumption Max. 5 W DC / 5 VA AC
Ingress Protection IP67
Communication Isolated RS485 Modbus RTU
Configuration Bluetooth / RILEVA TE app
Analogue Outputs Selectable 4–20 mA, 0–10 V, 1–5 V or 2–10 V
Alarm Relay SPDT, 1 A / 24 V AC/DC
Warning / Fault Relay SPDT, 1 A / 24 V AC/DC
Operating Temperature -40°C to +50°C
Remote Sensor Cable 5 m (GDSR models)

Sensing range, accuracy, warm-up time, operating life and calibration requirements vary by detector technology.

Sensor Maintenance & Replacement

CAREL supplies pre-calibrated replacement sensor elements for the GLD Small product range, helping simplify service and sensor replacement.

View Replacement Sensor Part Numbers
Part Number Sensor Type
GDOPZI2010SP R744 CO₂ infrared sensor
GDOPZE1910SP R717 ammonia electrochemical sensor
GDOPZSMX10SP Group 1 semiconductor sensor
GDOPZSHF10SP Group 2 semiconductor sensor
GDOPZSHC10SP Group 3 semiconductor sensor

Typical sensor checks: semiconductor and electrochemical versions require periodic checks; infrared versions have different calibration requirements. Follow the specific manual and applicable regulations.

BLUETOOTH SERVICE INTERFACE

CAREL RILEVA TE App

The CAREL RILEVA TE mobile application allows authorised personnel to interact with the GLD Small detector for supported configuration, parameter adjustment, diagnostics and service procedures.

Bluetooth Connection Live Monitoring Alarm Configuration Maintenance Support

Typical Applications

Cold Storage Rooms Freezer Rooms Refrigeration Machinery Rooms Supermarkets Commercial Refrigeration Industrial Refrigeration CO₂ Refrigeration Systems

Important Product Selection Information

Confirm the exact refrigerant, sensing technology, detector part number, gas concentration range and warning/alarm thresholds before ordering. A GLD Small detector must be selected, installed, configured and maintained according to the CAREL documentation and applicable safety regulations.

These GLD Small models are not ATEX-certified for hazardous classified locations. Semiconductor sensors may also respond to interfering gases or substances.

Detect Refrigerant Leaks. Protect Your Refrigeration System.

Looking for CAREL GLD Small refrigerant gas leakage detectors in Malaysia? Contact RNA Engineering & Trading Sdn Bhd for enquiries, product availability and assistance selecting a suitable gas detection solution for your cold room or refrigeration system.



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