Overview
Enviro Testers High Precision Zirconia Oxygen Gas Analyzer Fixed Detector is designed for continuous and accurate measurement of oxygen concentration in combustion exhaust gases from industrial boilers, furnaces, and process systems. This device utilizes a zirconia sensor with direct insertion, eliminating the need for additional gas sampling equipment.
Features
- High-precision zirconia oxygen measurement in non-combustible gases
- Direct insertion type design; no gas sampling devices required
- Modular sensor design for easy replacement and maintenance
- Fast response time of 4–7 seconds
- Explosion-proof and pressure-proof construction with IP66/IP67 rating
- Stable long-term use with advanced sensor diagnostic functions
- Supports digital display and RS485/HART communication options
- Wide gas temperature measurement range up to 1500 °C
- Durable construction with SUS316 explosion-proof filters
Application
Ideal for combustion management, exhaust gas monitoring in industrial boilers, furnaces, and other high-temperature process applications.
Technical specifications
| Specification | Description |
| Measuring Object | Oxygen in non-combustible gas |
| Measuring Method | Insertion type zirconia sensor |
| Measuring Range | 0 to 2% or 0 to 50% O₂ (in 1% O₂ steps) |
| Repeatability | Within ±0.5% FS |
| Linearity | Within ±2% FS |
| Zero Offset | Within ±2% FS per month |
| Response Time | 4 to 7 seconds for 90% (from calibration gas inlet) |
| Warm-up Time | More than 10 min |
| Analog Output | 4 to 20 mA DC, linear, isolated |
| Communication (Optional) | HART or RS-485 (MODBUS) |
| Contact Output | 6 points, SPST-NO, 250 V AC/30 V DC, 3 A |
| Contact Input | 3 points ON; 0 V (10 mA or less), OFF; 5 V |
| Power Supply | AC 100–120 V or AC 200–240 V |
| Concentration Display | Digital indication in 4 digits |
| Detector Gas Temp. Range | -10 °C to +600 °C (Flow guide tube system)
-10 °C to +1500 °C (Ejector system, high-temp gas) -10 °C to +800 °C (Ejector system, general-use) |
| Gas Pressure Range | 3 to +3 kPa |
| Filter | Aluminum oxide, quartz paper, SUS316 explosion-proof filter |
| Housing Protection Rating | IP65/IP66/IP67 (depending on model) |
| Weight | Ordinary type: 3.52 lb (1.6 kg); Explosion-proof type: 6.61 lb (3 kg) |
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