Specification parameters are defined per ANSI/ISA—51.1—1979 (R1993). Performance of a particular model may vary from these specifications, and may also be influenced by environmental factors. For further data, please consult the factory.

Detailed specifications on all instruments are available in the comprehensive catalog portion of this website.

Accuracy Analog units: ±2.0% of full scale
Digital units: ±2.0% of reading, ±1 least significant digit
(Limited to accuracy of calibration standard)
Repeatability ±0.5% of full scale
Minimum Detectability 1.0% of full scale
[Better on certain digital models]
Note that any data obtained at the level of minimum detectability will not be accurate.
Linearity ±1.0% of full scale
Zero Drift ±1.0% of full scale
Span Drift Less than ±2.0% of full scale (24 hours)
The zero and span drift specifications assume that the analyzer is equilibrated, and is at constant temperature, with a properly maintained sensor.
“Drift” is defined as an undesired change in output over a period of time, which change is unrelated to input, operating conditions, or load.
Lag Time Less than 1 second
Calibration Against standard gas mixture, or via INTERSCAN’s Electronic Calibration Service
Compliance with EC Directives on RoHS and WEEE Compliant.   Refer to detailed information.
Operating temperature range 4000 Series: 32°-120° F   (0-48.9° C)   ¦   LD and Multipoint models can be outfitted with thermostatic enclosures.