Single-Sensor O2 Deficiency & Enrichment Monitor with Horn Strobe

The CryoFX Single-Sensor O2 Deficiency & Enrichment Monitor with Horn Strobe (CFX-RAD-SEU-ZR-HS1) is a professional oxygen monitoring system designed to continuously detect hazardous oxygen deficiency and oxygen enrichment conditions in commercial and industrial environments. Combining a highly reliable zirconium oxide oxygen sensor with a dedicated horn strobe, this compact monitoring solution provides immediate audible and visual notification whenever oxygen concentrations move outside safe operating thresholds.

Unlike carbon dioxide monitoring systems that detect elevated CO2 levels, oxygen monitoring protects against conditions where oxygen is either displaced by inert gases or enriched beyond normal atmospheric concentrations. Oxygen-deficient environments can quickly become life-threatening, while oxygen-enriched atmospheres significantly increase combustion and fire hazards. The CFX-RAD-SEU-ZR-HS1 continuously monitors ambient oxygen concentrations to help personnel identify hazardous conditions before they become dangerous.

This compact oxygen monitoring solution is ideal for laboratories, pharmaceutical facilities, cryogenic storage rooms, liquid nitrogen applications, medical gas storage, manufacturing plants, research laboratories, process cooling systems, industrial freezers, clean rooms, and facilities utilizing nitrogen, argon, helium, or other inert gases capable of displacing oxygen.

The system incorporates a long-life zirconium oxide oxygen sensor with an expected service life exceeding 10 years, providing dependable long-term monitoring with minimal maintenance requirements. A dedicated 90 dB horn strobe immediately alerts nearby personnel whenever configurable alarm thresholds are exceeded, allowing rapid response to changing atmospheric conditions.

Important: The CFX-RAD-SEU-ZR-HS1 requires a compatible CryoFX Central Display Unit (CFX-RAD-CDU-HS1) to display real-time oxygen concentration readings. The Central Display Unit serves as the command center for monitoring sensor values, alarm status, and connected devices across your oxygen safety monitoring system.

Designed with future expansion in mind, the CryoFX modular monitoring platform allows additional sensors, centralized displays, remote displays, power monitoring units, and safety accessories to be added as facility requirements evolve. Whether protecting a single equipment room or expanding into a facility-wide monitoring system, the CFX-RAD-SEU-ZR-HS1 provides a scalable foundation for professional oxygen safety monitoring.

Features

• Continuous 24/7 oxygen deficiency and oxygen enrichment monitoring
• Professional single-sensor oxygen monitoring system
• Long-life zirconium oxide oxygen sensor
• Sensor life expectancy exceeding 10 years
• 90 dB audible horn with high-visibility strobe
• Three user-configurable oxygen alarm levels
• Compatible with the CryoFX Central Display Unit (CFX-CDU-HS1)
• Real-time oxygen monitoring when connected to the CDU
• Integrated 4–20 mA output
• Three programmable SPDT relays
• Supports building automation and ventilation integration
• Modular expandable monitoring platform
• Designed for commercial and industrial oxygen monitoring applications

Note: A surge protector is recommended to maximize equipment protection and long-term reliability.

Applications

Recommended for:

• Laboratories
• Pharmaceutical manufacturing
• Cryogenic storage
• Liquid nitrogen storage
• Medical gas storage
• Research facilities
• Manufacturing plants
• Process cooling systems
• Industrial freezers
• Clean rooms
• Industrial gas storage
• Facilities utilizing nitrogen, argon, helium, or other inert gases
• Commercial oxygen monitoring applications

Compatible Accessories

The CFX-RAD-SEU-ZR-HS1 integrates with:

• CFX-RAD-CDU-HS1 Central Display Unit (Required for viewing oxygen concentrations)
• CFX-RAD-0002-ZR-HS2 Oxygen Deficiency & Enrichment Safety Alarm
• CFX-RAD-0022-ZR Additional Remote Display
• CFX-RAD-PMU Power Monitor Unit
• CFX-SV-1029 Solenoid Shut-Off Safety Valve
• Certificate of Calibration (Available upon request during purchase)

Specifications

Oxygen Monitoring

• Measurement Range: 0–23% O₂
• Display Resolution: 0.1%
• Accuracy: Better than ±2% Full Scale
• Pressure Dependence: Not pressure dependent
• Response Time: Less than 2 minutes (90%)
• Alarm Response Time: Less than 60 seconds
• Warm-Up Time: 10 minutes (600 seconds)
• Operating Temperature: -58°F to 122°F (-50°C to 50°C)

Default Oxygen Deficiency Alarm Levels

• AL1: 19.5%
• AL2: 16.5%
• AL3: 12%

Default Oxygen Enrichment Alarm Levels

• AL1: 22%
• AL2: 24%
• AL3: 25%
• Sensor Life Expectancy: 10+ Years

Electrical Specifications

• Power Supply Output: 12VDC, 2000mA
• Power Input: 100–240 VAC, 50/60Hz, 0.6A
• Included Cable: 25 ft Ethernet communication cable
• Power Consumption: 3 Watts
• Battery Backup: 6VDC battery backup connections
• Relay Rating: Peak Current <2A @ 30VDC or 250VAC
• Relay Type: SPDT
• Analog Output: 4–20 mA

Installation Notes

The CFX-RAD-SEU-ZR-HS1 is designed for straightforward installation using the included communication cable and mounting hardware. Once connected to the required CryoFX Central Display Unit (CFX-RAD-CDU-HS1), the system continuously monitors ambient oxygen concentrations while providing immediate audible and visual alarms whenever configured safety thresholds are exceeded.

For maximum equipment protection and operational reliability, CryoFX recommends installing every monitor with a quality surge protector.

Why Choose the CFX-RAD-SEU-ZR-HS1?

The CFX-RAD-SEU-ZR-HS1 provides a cost-effective, expandable solution for facilities requiring professional oxygen monitoring without the need for a local remote display. When paired with the CryoFX Central Display Unit, it delivers centralized monitoring, dependable alarm notification, and long-term reliability while allowing additional sensors and accessories to be added as your monitoring requirements grow.

Warranty

• 1 Year Manufacturer Warranty