Chapter 3 Detailed Operating Instructions
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4. Replace the toxic sensor cap, turning it until it is securely
attached.
5.
Turn on the IAQ Monitor so the sensor can be identifed.
To remove the sensor, turn the IAQ Monitor off, unscrew the toxic
sensor cap, and then pull the sensor straight out.
Calibrating A Gas Sensor
For best results we recommend calibration on a regular basis.
Items necessary for proper calibration are the cl-5000 calibration
adaptor, the appropriate calibration gas for the sensor and a 1liter-
per-minute flow regulator (Part # sg-reg-1).
You will need to perform
BOTH
the zero and the span adjustment
procedures to properly calibrate your sensor.
IMPORTANT:
The zero and span adjustment procedures for
oxygen are different than those for toxic gases. Be sure to follow
the correct procedure for the sensor you are using.
The zero and span adjustments are performed electronically with
the results stored in memory.
NOTE:
Due to the presence of toxic gas during the calibration
process, appropriate safety procedures should be followed.
NOTE:
Calibration must be performed in an area known not to
contain hazardous or interfering gases if ambient air will be used as
the zero gas for this operation. If this is not possible, pure bottled
air (we recommend Nitrogen) should be substituted. Instructions
for both procedures are provided below. You only need to perform
one or the other.
The quality of the calibration process depends upon the accuracy of
the calibration gas and allowing the sensors to stabilize before
saving the zero and span calibrations.
Refer to the instrument diagram at the beginning of this chapter.
Preparing for Calibration
To begin calibration, follow these steps:
1. Connect the sensor to the IAQ Monitor and turn on the IAQ
Monitor. It will display the Main Screen.
Содержание AQ5000 Pro
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