YMJN-O-14EX Explosion-Proof Trace Oxygen Analyzer

Product Introduction

The YMJN-O-14EX Explosion-Proof Trace Oxygen Analyzer is designed for oxygen concentration monitoring in industrial gas analysis applications where explosion protection is required. It features advanced digital signal processing, a touchscreen operating interface, and linearized measurement output for convenient monitoring and process integration.

With a selectable measuring range of 0.00–99.99%, a resolution of 0.01%, and a response time of 15 seconds or less, the analyzer supports oxygen analysis in chemical plants, fertilizer production facilities, hydrogen-related processes, and other compatible industrial gas systems. Its Ex d IIC T6 explosion-protection marking makes it suitable for appropriately classified hazardous locations when the installation meets the equipment certification requirements.

Performance Features

1. Explosion-Protected Design: Specified Ex d IIC T6 protection for compatible hazardous-area applications.

2. Advanced Digital Processing: Supports measurement signal processing and stable oxygen concentration readings.

3.Linearized Measurement Output: Provides a linearized test result for convenient data interpretation and system integration.

4. Standard Analog Signal: Supports selectable 0–20 mA or 4–20 mA current output with a specified 500 Ω load.

5. English Touchscreen Operation: Features an English-language touchscreen interface for convenient operation.

6.  Wide Selectable Measuring Range: Measures oxygen concentrations over a configurable range from 0.00% to 99.99%.

7. High Display Resolution: Provides 0.01% resolution for detailed oxygen concentration indication.

8.  Fast Response: Specified T90 response time of ≤15 seconds.

9.  Flexible Communication: Supports selectable RS232 or RS485 interfaces.

10.Industrial Process Integration: Provides relay contact outputs for compatible monitoring and control systems.

Working Principle

The YMJN-O-14EX measures oxygen concentration in a gas sample using its integrated oxygen sensing and digital processing system. The sensor generates a response associated with the oxygen concentration, and the instrument processes the signal to produce a linearized measurement result.

The measured value is displayed through the English touchscreen interface and can be transmitted through the analog current output or a selectable RS232/RS485 communication interface. Relay contacts can support external alarms or control functions when configured for the application.

The supplied specifications do not identify the sensing technology or confirm the instrument's minimum detectable oxygen concentration. Despite the product name, trace-level detection capability and applicable low-concentration range should be verified with the manufacturer before purchase.

Technical Parameters

Note: The specified 0.01% resolution does not establish trace-level detection capability. Confirm the minimum measurement range, detection limit, sensor technology, and explosion-protection certification documentation with the manufacturer.

Application Scenarios

• Chemical Plants: Monitoring oxygen concentration in compatible process gases and production systems.

• Fertilizer Manufacturing: Supporting oxygen analysis in industrial gas processes.

• Hydrogen Industry: Monitoring oxygen in compatible hydrogen-related gas streams, subject to the analyzer's validated measurement range and gas compatibility.

• Industrial Gas Analysis: Measuring oxygen concentrations in selected gas mixtures.

• Hazardous Industrial Areas: Supporting oxygen monitoring where the installation environment and equipment certification are compatible.

• Process Monitoring and Control: Transmitting oxygen measurements to external monitoring systems through analog, digital, and relay interfaces.

YMJN-O-14EX vs. Conventional Oxygen Analyzers

Frequently Asked Questions (FAQ)

1. What is the YMJN-O-14EX Explosion-Proof Trace Oxygen Analyzer used for?

It is designed for oxygen concentration analysis in chemical plants, fertilizer facilities, hydrogen-related processes, and other compatible industrial gas applications requiring explosion-protected equipment.

2. What is the measuring range of the YMJN-O-14EX?

The specified range is 0.00–99.99%, with alternative ranges available. Confirm the exact configured range before ordering.

3. What does the Ex d IIC T6 marking mean?

It identifies a specified explosion-protection concept and equipment group, with T6 indicating a maximum equipment surface-temperature class of 85°C under the applicable certification conditions. Suitability depends on the actual certification, hazardous-area classification, gas group, and installation requirements.

4. Can the analyzer measure trace oxygen concentrations?

The product is marketed as a trace oxygen analyzer, but the supplied specifications do not state a trace-level detection limit or minimum oxygen concentration. These details should be confirmed with the manufacturer.

5. How long does the analyzer take to respond?

The specified T90 response time is 15 seconds or less, while the preheating time is 15 minutes or less.

6. Which output signals are available?

The analyzer supports selectable 0–20 mA or 4–20 mA analog output, RS232 or RS485 communication, and relay contacts rated at 220 VAC, 1 A or 24 VDC, 1 A.

7. Is the analyzer suitable for hydrogen applications?

It is listed for use in the hydrogen industry. However, hydrogen compatibility, the applicable oxygen measurement range, sample conditioning requirements, and hazardous-area certification must be verified for the intended installation.

8. What are the installation requirements?

The specified operating temperature is −10°C to 45°C, with relative humidity of up to 90% RH. The installation must also comply with the equipment's certified explosion-protection requirements and applicable local regulations.

9. What should buyers confirm before purchasing?

Confirm the minimum detectable oxygen concentration, configured measuring range, sensing technology, accuracy at low oxygen levels, sample gas compatibility, explosion-protection certificate, and output configuration.