Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2025-03-13
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User's Manual Datasheet
Versatile Solution for High Purity O2 Measurement
Features
Long-life solid-state zirconia sensor
Measurement range: 0 to 1,000ppm, 0 to 25%, 0 to 96% O2
Rechargeable battery pack (Optional)
Integral flow meter for positive pressure sample flow indication
LCD + 4 button HMI
Lightweight, rugged and portable
2 and 3 sensor option available
Analogue output per sensor
The Yellow Box Portable oxygen analyzer is a transportable O2 measuring device in a rugged case that provides a versatile solution for high purity oxygen measurement applications.
The Ntron Yellow Box is a compact, robust, transportable oxygen analyser that can be supplied with two or three zirconia sensors offering a fast response time and long service life with virtually no drift. Measurement ranges available are 0 to 1,000ppm, 0 to 25% & 0 to 96% O2 with a mA output per channel.
Specifications
| Performance | |
| Measurement Technology | Zirconia (ZR) |
| Measurement Range | 0 to 1,000ppm / 0 to 25% / 0 to 96% |
| Output Resolution ( For %) | 0.01% |
| Output Resolution (For Ppm) | 1ppm |
| Accuracy | +/-2% of reading (or 2ppm O2) @ calibrated temperature and pressure |
| Response Time (T90) | <10 seconds @ 20?C. Warm up time: 15mins from switch on. |
| Ldl (Sensitivity) | 0.01% (when measuring %) / 1ppm (when measuring ppm) |
| Temperature Range | -20?C to +50?C |
| Pressure Range | Regulated to 5 psi(G) |
| Linearity | 2% of reading |
| Life Expectation | >30,000 hours in 20.9% oxygen (ambient air) |
| Humidity | 0-95% RH non-condensing |
| Shelf Life | No shelf life |
| Electrical Input / Output | |
| Power Supply | Internal rechargeable battery and charger (Optional) Charge via 3-pin IEC Mains connector @ 85-240 VAC 50-60H |
| Power Consumption | Max Load 160mA |
| Signal Output | 4-20mA |
| Digital Communications | RS232 bi-directional Modbus protocol. |
| Connection Ports |
Sample In: 6mm Sample Exhaust Out: Via Flowmeter port. |
| Display Format | % O2 / ppm O2 |
| User Interface | LCD wiith 4 button multifunction keypad |
| Mechanical Specifications | |
| Dimensions | See technical drawings |
| Weight | <4.5kg / 4.5kg / 8.5kg |
| Case Materials | High impact copolymer polypropylene |
| Sample Gas | Standard 0.5 SLPM |
| Internal Regulation | Sample pressure & flow set at 5PSIG / 0.3BARG; 0.55SCFH / 250 ml/m |
| Ingress Protection | IP67 when case closed for transportation |
| Sample Connection | 6mm |
| Certification | Complies with EMC Directive 2004 / 108 / EC. UL/ETL Certification Number: UL-61010-1 |
Suitable Applications
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