Checkout - Honeywell C7232A Product Data

Input Signal
The C7232 Sensors have an adjustable range. These ranges
are determined by the SW1 and SW2 jumper settings (see
Table 2).
Table 2. CO Range Jumper Settings
2
SW1 SW2
On On 0 to 1000
On Off 0 to 2000
500 to 1500
b b
Off On
Off Off 500 to 2000
a
When the level reaches this value, the contacts close; when
the level drops 100 ppm below this value, the contacts open.
b
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
AN
Voltage 0-10Vdc
Current 0-20 mA
Example
For a CO 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
2
the analog curve).
CO Level (ppm)
2
Voltage Output (Vdc)
For a CO 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
2
the analog curve).
CO Level (ppm)
2
Voltage Output (Vdc)

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 level registered by the controller to
2
ensure a strong rise.
3. When connected to a damper in a ventilation system, the
controller typically signals an increase in air flow.
a
AN (ppm) Relay (ppm)
1000
1200
800
1200
OUT
0-100% 20-100%
2-10Vdc
4-20 mA
Table 4. 0-10 Vdc Output Example.
0 200 400
0 1 2
Table 5. 2-10 Vdc Output Example.
0
2
NOTES:
— Jumper sensors are shown on the sticker on the
inside of the cover.
— Use needle nose pliers to carefully reposition
jumpers.
— The CO
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.
AN
Fig. 7. C7232 default jumper settings.
600 800 1000
3 4 5
250 500 750
3 4 5
5
C7232A,B SENSOR AND CONTROLLER
settings and the output signal settings
2
OUT
SW1 SW2
1200 1400 1600
6 7 8
1000 1250 1500
6 7 8
M32547
1800 2000
9 10
1750 2000
9 10
63-2571—12