XNX Universal Transmitter Quick Start Guide
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Footnotes (see table on previous page):
1. Accuracy of reading at default Alarm 1 concentration (typically 10%FS or defined minimum alarm level setting, whichever greater) when operated at default full scale.
2. System conditioning may be required to achieve stated results. Contact Honeywell Analytics for details.
3. Measured using calibration flow housing at calibration flow rate (300-375 ml/min) with dry gas.
Notes (see table on previous page):
• Data taken at ambient conditions of 20°C, 50% RH.
• Data represents typical values of freshly calibrated sensors without optional accessories attached.
• Performance gures are measured by test units calibrated at 50% of full scale.
• Standard temperature range for XNX EC Sensors is -20°C to +55°C; ATEX, IECEx.
• Extended temperature ranges for the XNX EC Sensors are -40°C to -20°C
• Accuracy between the temperatures of -40°C and -20°C is ±30% at the applied gas concentration.
• Operating the XNX EC Sensors at extended temperature ranges for a prolonged time period exceeding 12 hours may cause deterioration in sensor performance and shorter sensor
life.
• Barometric pressure effects on the O
2
sensor: The output from the O
2
sensor has pressure effects of <0.1% change of output per % change in pressure. When the barometric
pressure changes by ±20% the output from the O
2
sensor changes <±0.4%Vol. However, the oxygen sensor shows transient behavior when subjected to a rapid change in ambient
pressure due to either weather or altitude. For example, a 10KPa instantaneous positive pressure step change may cause an overscale alarm condition for a period of about 12
seconds.
• Recalibration is recommended if the temperature of local environment has varied by more than ±15°C from the temperature of calibration.
• Response times may increase at lower temperatures.
• Contact Honeywell Analytics for any additional data or details.
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