Honeywell C7232A Скачать руководство пользователя страница 1

PRODUCT DATA

63-2571-4

® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
 All Rights Reserved 

®

C7232A,B

 Sensor and Controller

CARBON DIOXIDE SENSOR

APPLICATION

The C7232 Sensor and Controller is a stand-alone carbon 

dioxide (CO

2

) sensor for use in determining ventilation 

necessity with HVAC controllers. The C7232 measures the 

CO

2

 concentration in the ventilated space or duct. The C7232 

is used in ventilation and air conditioning systems to control 

the amount of fresh outdoor air supplied to maintain 

acceptable levels of CO

2

 in the space.

FEATURES

• Models available with LCD that provides sensor 

readings and status information.

• Non-Dispersion-Infrared (NDIR) technology used to 

measure carbon dioxide gas.

• Gold-plated sensor provides long-term calibration 

stability.

• Device provides voltage output based on CO

2

 levels.

• Models available with SPST relay output.
• Used for CO

2

 based ventilation control.

• Automatic Background Calibration (ABC) algorithm 

based on long-term evaluation reduces required 

typical zero-drift check maintenance.

C7232A

C7232B

Contents

Application ........................................................................

1

Features ...........................................................................

1

Specifications ...................................................................

2

Ordering Information  ........................................................

2

Installation ........................................................................

3

Wiring ...............................................................................

4

Calibration ........................................................................

6

Checkout ..........................................................................

6

Appendix ..........................................................................

7

Содержание C7232A

Страница 1: ...air supplied to maintain acceptable levels of CO2 in the space FEATURES Models available with LCD that provides sensor readings and status information Non Dispersion Infrared NDIR technology used to measure carbon dioxide gas Gold plated sensor provides long term calibration stability Device provides voltage output based on CO2 levels Models available with SPST relay output Used for CO2 based vent...

Страница 2: ...persive infrared NDIR Sampling Diffusion Range 0 to 2000 ppm 5 and 50 ppm Annual Drift 20 ppm nominal Electrical Ratings Power Supply 24 Vac 20 50 60 Hz Class 2 Maximum Power Consumption 3W Peak Current at 20 ms 600 mA Relay Configuration Shipped N O reconfigure with software Contact Rating 1A at 50 Vac 24 Vdc Minimum Permissible Load 1 mA at 5 Vdc Linear Analog Output Voltage 0 2 10 Vdc resistive...

Страница 3: ...an shock individuals or short equipment circuitry Disconnect power supply before installation CAUTION Equipment Damage Hazard Electrostatic discharge can short equipment circuitry Ensure that you are properly grounded before handling the unit C7232A Cover Removal Replacement C7232A Cover Removal see Fig 3 1 Remove button head socket cap screw and set it aside 2 Insert the head of a small screwdriv...

Страница 4: ...adings Ensure the box cover and duct seal completely 3 Place o ring on tube end mount the control to the tube Fig 4 Junction box mounting C7232A Fig 5 Duct mounting C7232B WIRING The factory ships the device with the output default settings shown in Tables 2 and 3 Set the jumpers and wire the device see Table 1 and Fig 6 CAUTION Electrical Shock or Equipment Damage Hazard Can shock individuals or ...

Страница 5: ...es and do not refer to or alter the ppm range chosen Fig 7 C7232 default jumper settings Example For a CO2 setting of 0 2000 ppm and a voltage output of 0 10 Vdc the output would be as shown in Table 4 arbitrary points along the analog curve Table 4 0 10 Vdc Output Example For a CO2 setting of 0 2000 ppm and a voltage output of 2 10 Vdc the output would be as shown in Table 5 arbitrary points alon...

Страница 6: ...nce the sensor stabilizes use a screwdriver to connect the two MENU soldering pads 2 The display should indicate CAL 3 Execute the zero calibration by connecting the two ENTER soldering pads 4 The display should return to providing the measured CO2 level CHECKOUT Perform a quick test of the unit with the unit powered 1 Stand close to the unit and breathe air into the sensor 2 Check the CO2 level r...

Страница 7: ...ed for 0 2 10Vdc or 0 4 20mA see Table 7 Table 7 Output Signal Jumper Settings for models with date code prior to 0309 NOTES On duct models with date code prior to 0309 remove the screw holding the board in place to view jumper settings on reverse See Fig 8 The CO2 settings and the output signal settings are independent of each other 0 100 and 20 100 are simply markings for the OUT jumper settings...

Страница 8: ...ell Europe S A Honeywell Latin American Honeywell International Inc Honeywell Limited Honeywell Limitée Control Products 3 Avenue du Bourget Region 1985 Douglas Drive North 35 Dynamic Drive Honeywell Building 1140 Brussels 480 Sawgrass Corporate Parkway Golden Valley MN 55422 Scarborough Ontario 17 Changi Business Park Central 1 Belgium Suite 200 M1V 4Z9 Singapore 486073 Sunrise FL 33325 ...

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