caron 7310-22, Руководство по эксплуатации

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7310 Series Operations Manual REV E 11-19-19 Page 84 of 131
Method A (geometric center)
Locate the reference instrument’s humidity sensor in close proximity to the cabinet’s
geometric center. Turn the lights ‘
off ’. Let the unit stabilize for at least 3 hours at the
temperature and humidity setpoint.
Method B (chamber sensor)
Locate the reference instrument’s humidity sensor behind the rear wall duct sheet and
adjacent the chamber’s existing humidity sensor (within 1 inch (25 mm)). See humidity
sensor location in the Equipment Overview section of this manual. Be sure to re-install
the rear wall access door panel that covers the sensors. For this method, the lights may
be ‘
on ’ or ‘ off ’. Let the unit stabilize for at least 3 hours (lights ‘ off ’) or 6 hours (lights ‘ on ’)
at the temperature and humidity setpoint.
A positive value will move the humidity ‘up’ and a negative value ‘down’. Press the
‘home’ button and verify the proper humidity is displayed.
Humidity calibration (example)
If the chamber humidity display reads 80% and the calibrated independent sensor
shows 83%, set the humidity offset value to 3.0%. If the calibrated independent sensor
shows 74%, then the entered offset should be negative. In this example the required
offset to humidity would be -6.0%.
Calibrating CO
2
If CO
2
calibration is needed, the same Method (A or B) should be following as in the
temperature (& humidity) calibration. CO
2
calibration must be performed concurrently
with temperature (& humidity) calibration.
In both CO
2
calibration methods, the CO
2
sensor must be out of incident light during the
calibration process.
In both humidity calibration methods, the
humidity sensor
must be out of incident light
during the calibration process.