Honeywell C7600A User Manual

C7600A

63-2150-5

Solid State Humidity Sensor

PRODUCT DATA

FEATURES

• Long-lasting solid state sensing element is accurate and stable over time.

• Sensor enclosed in rugged glass-fiber reinforced plastic case.

• Compact size and lightweight construction for easy mounting in duct or on wall.

•Vents in top of cover allow air flow to internal humidity sensing element.

•4 to 20 mA output inversely proportional to relative air humidity.

• Can be used indoors or outdoors.

GENERAL

The C7600A Solid State Humidity Sensor senses the relative humidity of the return air and is used with the W7600 Multifunction Controller or any controller capable of processing a 4 to 20 mA signal.

Contents

General ............................................................................... 1

Features .............................................................................. 1

Specifications ...................................................................... 2

Ordering Information ........................................................... 2

Installation ........................................................................... 3

Operation ............................................................................ 5

C7600A SOLID STATE HUMIDITY SENSOR

SPECIFICATIONS

IMPORTANT

Model:

C7600A Solid State Humidity Sensor. Use with W7600 Multifunction Controller or any controller capable of processing 4 to 20 mA signal.

Electrical Ratings:

The specifications given in this publication do not include normal manufacturing tolerances. Therefore, an individual unit may not exactly match the listed specifications. Also, this product is tested and calibrated under closely controlled conditions and some minor differences in performance can be expected if those conditions are changed.

Input:

18 to 24 Vdc.

Output:

4 to 20 mA current signal; increases from 4 to 20 mA as humidity decreases. The relationship of the C7600A output current vs. relative humidity is shown in Fig. 2. It is not possible to develop a straight-line formula for calculating the C7600A current output from a given relative humidity; however, the exponential formula below gives accurate results for this relationship.

I = 19.12925 - 0.1507896RH + 1.720302(10

- 1.598528(10-7)RH

-4

)RH

Where:

I is the current output of the C7600A in mA. RH is the percent relative humidity.

Maximum Power Consumption: 0.48 VA.

Humidity Sensitivity:

+/- 3 percent.

Humidity Sensing Element:

Polyamide film (capacitance changes with change in humidity).

Case:

Compact, rugged, lightweight plastic case.

Mounting:

Duct-mounted indoors, or wall-mounted outdoors in a location protected from rain, snow, or direct sunlight.

Terminals:

Tw o 1/4 in. (6 mm) quick-connect terminals.

Dimensions:

See Fig. 1.

Time Constants:

Airflow: 500 fpm. Time: 15 minutes.

Approvals:

Underwriters Laboratories Inc.: Flammability rating UL94-5V.

3-5/32

(80)

2-3/4

(70)

7/32 (6)

5/16 (8)

Ambient Temperature Ranges:

Operating:

32°F to 125°F (0°C to 52°C).

Shipping:

-40°F to +150°F (-40°C to +66°C).

Humidity Range:

10 to 90 percent relative humidity.

9/16 (14)

1(25)

Fig. 1. C7600A Solid State Humidity Sensor

dimensions in in. (mm).

3-7/8 (96)

M3129A

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:

1. Your local Home and Building Control Sales Office (check white pages of your phone directory).

2. Home and Building Control Customer Relations Honeywell, 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386

In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

63-2150—5

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