Digital Control Systems AirSense 310en Operator'S Manual Download Page 1 | Manualshive

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AirSense

Model 310en

Infrared Environmental CO2 Sensor

Operator's manual

©

Copyright 2011

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Summary of Contents for AirSense 310en

Page 1: ...AirSense Model 310en Infrared Environmental CO2 Sensor Operator s manual Copyright 2011...

Page 2: ...AirSense Model 310en Operator s Manual 3 9 15 Digital Control Systems Page i www dcs inc net 503 246 8110 Date 10 11 11 3 09 15 Ver01...

Page 3: ...gh CO2 Limit Adjustment 7 High CO2 Limit Hysteresis Adjustment 8 Analog Top of Scale Adjustment 9 Altitude Correction Considerations 10 Altitude Correction Procedure 10 Calibration 11 Verification Pro...

Page 4: ...or measuring environmental CO2 concentration in ventilation systems and indoor living spaces Its default measurement range of 0 2000 ppm parts per million 1000 ppm 0 1 covers the range required to mon...

Page 5: ...blinks whenever the concentration is above the limit The standard factory high CO2 limit is 1000 ppm but can be adjusted in the field The procedure for adjusting the high CO2 limit is described on pag...

Page 6: ...0 RH non condensing Storage temperature 30 to 60 C Power requirements 20 28 VRMS AC 18 30 VDC Power consumption Less than 2W 24 VAC Calibration verification time 10 minutes typical Dimensions 5 2 x 3...

Page 7: ...over with a downward motion to clear the catch at the top of the unit The locations of controls and terminals on the main circuit board are shown in the Figure 2 on page 5 Mounting The Model 310en is...

Page 8: ...tronics C O 2 S E N S O R Power In 20 28 VAC 18 30 VDC Polarity matters for DC only Optional Relay Contact Output Figure 2 Model 310en Component Locations Power Supply The Model 310en is not a loop po...

Page 9: ...hen the two bottom pins of the analog output selector are connected with the shorting block a voltage output appears at the terminals marked ANALOG OUTPUT The output voltage increases linearly with CO...

Page 10: ...not always the same High CO2 Limit Adjustment An adjustable high CO2 limit is a standard feature of the Model 310en The front panel LED changes from steady to blinking when the indicated concentration...

Page 11: ...s of jumper JP3 see Figure 2 on page 5 Use a narrow bladed screwdriver or the like to momentarily connect the two pins of JP1 while JP3 is closed 2 If the display is present it will show the current h...

Page 12: ...rd whether the shorting block at jumper JP5 is covering both pins or only a single pin then borrow the shorting block and slide it over the two pins of jumper JP4 see Figure 2 on page 5 2 If the displ...

Page 13: ...ly calibrated for sea level operation to a new altitude proceed as follows 5000 1 18 1 Let the Model 310en stabilize to the ambient CO2 concentration and record the reading in ppm If the reading is gr...

Page 14: ...d letting the reading stabilize CO2 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 200...

Page 15: ...step 9 Figure 3 Showing location of calibration nipple Otherwise note whether the shorting block at jumper JP5 is covering both pins or only a single pin then borrow the shorting block and slide it o...

Page 16: ...The polarity of the high limit contact is set with jumper JP5 as shown in the table below Jumper JP5 Relay Operation CLOSED factory default normally open closes above setpoint normally closed opens a...

Page 17: ...result in significant risk of injury or death Limited Warranty and Remedies DCS warrants to Buyer of the AirSense Model 310en that for 18 months from the date of shipment of Products to the Buyer tha...

Page 18: ...ential damages To obtain service under this warranty unless DCS agrees otherwise Buyer must obtain a returned material authorization RMA number from the factory pack any nonconforming Product carefull...

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