Digital Control Systems AirSense 310en 운영자 매뉴얼 - 페이지 14
{카테고리_이름} Digital Control Systems AirSense 310en에 대한 운영자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Digital Control Systems AirSense 310en 19 페이지. Infrared environmental co2 sensor
페이지 인쇄buttons to change the indicated concentration to the value
just calculated.
If there is no display the indicated concentration is
reported by the analog output with a scaling of 200
ppm/volt.
5. Remove the shorting block from jumper JP2 and return it
to its previous position over one or both pins of jumper
JP5.
6. Replace the cover (see procedure on page 7).
Calibration
This section describes the calibration verification procedure
and calibration adjustment procedures.
Verification Procedure
A quick but approximate calibration verification can be done
by supplying the unit with outside air and letting the reading
stabilize. CO 2 concentrations in outside air are typically
between 375 and 450 ppm.
A more accurate calibration check requires the use of
calibration gas of known concentration. 2000 ppm
calibration gas is recommended A calibration kit that
includes a digital display is available from the factory.
To verify the Model 310en's calibration, proceed as follows:
1. Remove the front cover of the unit (see procedure on
page 4).
2. If there is no display on the unit being calibrated, connect
a meter to the analog output terminals. Check the setting
of the analog output selector (see Figure 2 on page 5) to
determine whether the unit is set for voltage or current
output.
3. Locate the calibration nipple under the sensor's circuit
board as shown in Figure 3.
3/9/15
AirSense Model 310en Operator's Manual
Digital Control Systems
www.dcs-inc.net • 503/246-8110
11
Page: