Ntron Model OA-1 is the industry benchmark for transportable oxygen analyzers for ultra-pure gas applications. Capable of analyzing PPM levels of oxygen in inert gases, the OA-1 delivers rapid response with high reliability to 1PPM O2.

The compact, lightweight design allows the OA-1 to meet spot check, QA/QC, and process control applications.

The user-friendly, keypad command system and LCD display assure ease of analyzer control. Microprocessor control and large LED display facilitate analyzer operation, data acquisition, and processing. The OA1 has two alarms with independent relays, which may be set and controlled by the operator.

Operating Conditions: Ambient Temperature: 32º to 113ºF (0º-45ºC) - Relative Humidity: 0-90% (non-condensing)

Range: 0.1PPM to 100% 02. Analyzer auto-ranges between PPM and %. Indicator light on display specifies whether reading is PPM or %.

Accuracy: ±2% of RANGE

Response Time: 95% of step change in 5 sec. at 1 liter/min. sample flow rate. (within range)

Recovery Time (from air to:): 100PPM <20 sec., 10PPM <5 min., 1PPM <15 min.

Operations: 10-60 PS1G. Flow Rate: .5 to 1.5 liters/minute, 115/230 VAC ±20%, 50/60 Hz. (via power selector switch)

Warm-Up Time: Approximately 20 min.

Dimensions: 8.12” H x 9” W x 13.55” L (206mm x 229mm x 244mm)

Weight: 10.5 lb (4.77 kg)

Features:
	Bi-directional RS-232 communication link
	Isolated or non-isolated 4-20MA current output
	Analog outputs 0-1VDC or 0-10VDC
	LED & LCD displays