User Guide

C7262A SENSOR AND CONTROLLER
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
® U.S. Registered Trademark
© 2012 Honeywell International Inc.
62-0353—03 J.J. 09-12
Printed in United States
a
SW1 ON and SW2 ON state means jumper is set in upper
position and OFF state means jumper is set in lower posi-
tion.
b
When the level reaches this value, the contacts close; when
the level drops 100 ppm below this value, the contacts open.
c
Setting when shipped from the factory.
Output Signal
The output signal can be adjusted for 0/2-10 Vdc or 0/4-20 mA
(see Table 3).
Table 3. Output Signal Jumper Settings
NOTES:
— Jumpers are shown on the sticker on the inside of
the cover.
— Use needle nose pliers to carefully reposition
jumpers.
—The CO
2
settings and the output signal settings
are independent of each other. 0-100% and
20-100% are simply markings for the OUT jumper
settings on the sensor (to differentiate between
the two voltage and the two current ranges) and
do not refer to or alter the ppm range chosen.
Fig. 4. C7262 default jumper settings.
Example
For a CO
2
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 CO
2
setting of 0-2000 ppm and a voltage output of 2-10 Vdc, the output would be as shown in Table 5 (arbitrary points
along the analog curve).
Table 5. 2-10 Vdc Output Example.
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 CO
2
level registered by the controller to
ensure a strong rise.
3. When connected to a damper in a ventilation system,
the controller typically signals an increase in air flow.
AN OUT1 & OUT2
OUT 1 & OUT 2
0-100% 20-100%
Voltage 0-10Vdc 2-10Vdc
Current 0-20 mA 4-20 mA
M33068A
V
COM AC/DC
COM AC/DC
RELAY COM
CO
2
Level (ppm)
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Voltage Output (Vdc)012345678910
CO
2
Level (ppm)
0 250 500 750 1000 1250 1500 1750 2000
Voltage Output (Vdc) 2345678910
By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising
out of your use or modification to, the literature. You will defend and indemnify Honeywell, its affiliates and
subsidiaries, from and against any liability, cost, or damages, including attorneys’ fees, arising out of, or
resulting from, any modification to the literature by you.