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Portable Oxygen Analyzer - Ntron Yellow Box

Updated:2025-03-13

Brand: PST/Ntron
Model: Yellow Box
Description: 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.
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Product Details

Portable Oxygen Analyzer - Ntron Yellow Box Description：

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