The Model O2L is a general purpose oxygen analyzer for research, fuel and combustion system monitoring, food processing and packaging, pharmaceutical manufacturing, automotive engine analysis, and purge verification applications. The Model O2L is designed to measure oxygen in a range of 0-100% levels with resolution of 0.01 % from 0-10% and 0.1% from 10-100%. The unit operates in LN (low noise) mode for smooth readings and the measurements are made independent of sample pressure, gas temperature and other gases including CO2 and H2O. Gases other than oxygen will, in most cases not affect the measurement except for their dilution effect on the gas mixture. The Model O2L features an easy to use and feature bright LED displays, touch panel controls, easy calibration, and has a sampling pump and internal flow meter for monitoring flow in the system. A terminal strip on the rear panel is included for analog relay alarm outputs , 4-20 mA outputs, and an analog 0-1.0 VDC output is on a BNC connector. A DB-9 connector RS-232 digital output provides digital serial communications and is compatible with Oxisoft software. The unit has CPC O-ring quick connect inlet fittings for industrial applications.

Unit of Measure

Performance Conditions

Ambient temperature Operating

N/A 5 to 40 ºC40 to 105 ºF

Ambient Temperature Storage

N/A -20 to 60 ºC-2 to 140 ºF

Cell Pressure

N/A 500 to 900 mmHg10.2 to 17.4 psi

Warm-up for Full Accuracy

N/A 10


N/A Two point calibration required after change in altitude of 2000 feet


N/A 0 to 95%, non-condensing

Performance Specifications


N/A 0 to 100% (with serial locking cell)


N/A 0.01 % for 0-10% range and 0.1% for 10-100% range

Stability (8hrs)

N/A ±0.3%

Cross Sensitivity

N/A ±0.2% for any gas mixture

Response Time

N/A 150ms at 150ml/min and filter 3


N/A Low Flow Oxygen A Oxygen B System Check


N/A 250 VAC rating 5 A Form C (SPDT)

Analog Output

N/A 4 – 20 mA programmable from front panel

Sample Inlet

N/A CPC O-ring quick connects, 1/8 “ flex tubing barbs std

Electrical Specifications

Sensor Power Requirements

N/A 0.4 A typical at 24 VDC 1.4 A max 15 to 32 VDC


N/A 100 to 230 VAC 50 to 60 Hz

Mechanical Specifications

Dimensions (W x H x D)

N/A 10.375 x 12.25 x 7.375 in


N/A 8 Pound5 kg