TFEX-8 Explosion-Proof Zirconia Analyzer, Zirconia Oxygen Analyzer, Explosion-Proof Zirconia Analyzer, Zirconia Analyzer-Anhui Tianfen Instrument Co.,Ltd

Online density meter/concentration meter

TFEX-8 Explosion-Proof Zirconia Analyzer, Zirconia Oxygen Analyzer, Explosion-Proof Zirconia Analyzer, Zirconia Analyzer

Keywords: R&D tuning fork densimeter, zirconia oxygen analyzer

Category:

Zirconia oxygen analyzer

Tel：

18225808093

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Product Details

Note: TFEX-8, TKFXZOA, EXNFZRO, etc. The model is a registered trademark of Anhui Tianfen Instrument Co., Ltd. This model is unique; customers are advised to carefully verify its authenticity.

The explosion-proof zirconia oxygen analyzer is specially designed for use in flammable and explosive environments. High-performance online oxygen concentration monitoring equipment It can continuously and accurately measure oxygen content in high-temperature, corrosive, or gas environments with explosion risks. Its core value lies in simultaneously ensuring... Production Process Safety With Optimized combustion efficiency.

Compared to standard models, the key feature of the explosion-proof analyzer lies in its special safety design:

Intrinsically Safe and Flameproof Design By enclosing circuits that could generate electric sparks within a special enclosure or by limiting the circuit’s energy, we ensure that they will not become an ignition source in hazardous gas environments.

Core performance : Usually possesses Rapid response (As fast as 3-7 seconds), High precision (±1%FS), High-temperature resistant (The probe can be directly inserted into flues with temperatures up to 700℃) and Intelligent Self-Diagnosis Function.

Selection and Usage Recommendations

When selecting and using the product in practice, you can focus on the following points:

Confirm explosion-proof certification You must select one that is compatible with the installation area. Explosion-proof rating standards Products that have domestic Ex d IIC T6 certification or international ATEX/IECEx certification.

Clearly define measurement conditions : Must be based on the gas being measured. Temperature, pressure, corrosive components Choose the probe material (e.g., whether stainless steel corrosion resistance is required) and the installation method (direct insertion or extraction type).

Assess maintenance convenience : Prioritize those with Sensor aging diagnosis and revival function Models featuring modular design can significantly reduce long-term maintenance costs and complexity.

Consider system integration Ensure the analyzer's Output signal (such as 4-20mA, HART, RS485) can be compatible with the factory’s existing... DCS or PLC control system Seamless integration

Oxygen Transmitter Parameter Requirements

Display screen: LCD liquid crystal display with a Chinese menu. Touch-sensitive buttons—no need to open the lid; simply operate directly on the glass panel.

Display contents: oxygen concentration, zirconia tube temperature, zirconia tube voltage value, output current value, sensor internal resistance, self-diagnostic information, and more.

Operating language: Chinese

Power supply voltage: 220VAC ±10%

Power frequency: 50/60 Hz

Heating power: ≤150W

Measurement range: 0.01%–25.00% (arbitrarily set from 5.00% to 25%).

Output signal: 4–20mA

Signal interface: Supports RS485/MODBUS protocol

Damping adjustment: You can set the damping coefficient in the menu.

Measurement accuracy: ±1% of the measurement range or ±0.1% of the reading, in O2.

Constant temperature: 700.0℃ ± 0.2℃ (adjustable between 500℃ and 900℃).

Protection rating: IP66

Explosion-proof rating: Exdb IICT6 Gb/Extb IIICT80℃ Db

Calibration methods: Two options—manual calibration and fully automatic calibration—are available via the menu. (Automatic calibration requires a matching automatic calibration unit box.)

Installation method: Wall-mounted installation

Range drift: The drift over a 12-month period shall not exceed 0.2% of the adjusted range.

Stability: ≤ ±0.05% (instrument continuous calibration for 4 hours)

Self-diagnosis and alarm functions: Equipped with self-diagnosis capabilities, including thermocouple reverse connection detection, thermocouple open-circuit detection, heating abnormality detection, oxygen concentration alarm, and temperature alarm.

Response time: 90% response within 0.5 seconds (timing starts from the moment the gas enters the calibration gas inlet and the analog signal begins to change).

Junction box material: Metal (steel or die-cast aluminum is recommended).

The instrument features stable temperature control performance and a long service life. The zirconia oxygen transmitter is composed of electronic components centered around a microcontroller, including data processing, display functions for oxygen concentration, temperature, and alarms, heater control, current output, and alarm output. It allows for real-time correction of measurement errors and enables adjustments to output settings, control modes, and alarm thresholds.

Oxygen transmitter service life: ≥5 years

Probe Technical Parameter Requirements

Flue gas temperature: ≤800℃

Flue gas pressure: -100 to +100 kPa

Flue gas velocity: 0 ~ 50 m/s

Ambient temperature: -40℃ to +80℃

Response time: ≤0.5s, 90%

Process time (T90) ≤ 3s

Zirconium battery resolution: <1 ppm

Material: Protective tube 316L

Protective tube diameter: φ51mm

Insertion depth: L = 800 mm

Probe installation angle: Horizontal installation or vertical downward installation

Flange: Outer diameter 155, center distance of screw holes 130.

Heating time: 5–15 min (constant temperature: 700.0℃).

Sensor electrode: Platinum electrode with a corrosion- and sulfur-resistant coating.

Pressure resistance: Under any flue gas pressure conditions during combustion control, it operates normally without leakage. (The sensor’s factory-tested pressure is 400 kPa with zero leakage.)

With shock-absorbing measures

Sensor zero potential: less than ±0.5 mV (in air, at a constant temperature of 700.0℃). (Long-term stability with no drift.)

Sensor internal resistance: less than ±20 ohms (in air, at a constant temperature of 700.0℃).

Calibration gases: 5% and 20.6% O2; the background gas is nitrogen (any calibration gas within the range of 1% to 10% can be used for calibration, and the linearity over the entire measurement range is less than 0.01%).

Reference gas: Air; no external reference gas supply required.

Standard gas flow rate: 150–300 ml/min

Probe filter: Standard equipped with a precision dust-proof filter, sealed at the top.

Service life: ≥4 years