Environmental Compensation - INDIGO200SERIES - INDIGO201

Indigo 201 User Guide

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English (United States)
Document type
User guide

When making adjustments, you can enter information about the environment in which you perform the adjustment. This allows compensating for environmental factors that have an effect on the measurement (for example, temperature, pressure, or background gases). The selection of environmental compensations available in the Indigo calibration settings depends on the features and configuration of the connected probe.

The environmental compensation selections are available on the Configuration tab of the Calibration menu. To use environmental compensations, first enable the compensation from the Measurement selections, and then enter the compensation in the Compensation setpoints fields. You can also set the power-up default compensations that remain in use also after probe reset.


Figure 1. Measurement Selections, CO2 Probe Example
Filtering factor
Defines how much past measurements affect the output (measurement averaging over time). For details, see probe documentation.
Temperature compensation mode
Select whether the probe sensor's measurement or a manually entered setpoint is used to set the temperature compensation.
Pressure/humidity/oxygen compensation ON/OFF
Enable or disable the environmental compensations.

Compensation Setpoints and Power-Up Defaults

Figure 2. Compensation Setpoint and Power-Up Default Selection, CO2 Probe Example
Environmental compensations can have interdependencies: for example, accurate RH measurement requires that also the temperature and pressure configuration match the measurement environment. For more information on the environmental compensation features of the connected probe, refer to the probe's documentation.

Note that the environmental compensations you set in the Settings > Probe menu and the compensations you set in the Calibration menu are interconnected: the configuration set in either menu is applied to both.