Carbon Dioxide (CO2) Detectors
Installation Guide
SAE-1011/1012/1062
General Information
SAE-1062
(Duct)
WARNING
Do not use in an explosive or hazardous
environment, with combustible or flammable gases,
as a safety or emergency stop device, or in any other
application where failure of the product could result
in personal injury.
CAUTION
Read these instructions carefully before installing
and commissioning the CO2 detector. Failure to do
so may result in product damage.
Strong shock or vibration may affect the calibration
of the SAE-1011/1012/1062. Be careful to not
drop the detector while installing or calibrating
it. Take electrostatic discharge precautions during
installation. Do not exceed the device ratings.
NOTE: The SAE-1011/1012/1062 models replace
the older SAE-1001/1002/1051 models.
For the installation and conguration
information on the older models, see the
SAE-1001/1002/1051 installation guide (717019-37).
SAE-1012
(Space)
Mounting
SAE-1011/1012 Space Mount
Install the unit at least ve feet above the oor of
the area to be controlled. Do not install near doors,
windows, supply air diusers, or other known air
disturbances. Avoid areas where the detector is
exposed to vibrations or rapid temperature changes.
1. Remove the Phillips-head screw on the boom
edge of the cover. (See Illustration 1.)
2. The cover is hooked to the base/backplate at the
top edge and must be removed from the boom
edge rst. Tip the cover away from the base and
set it aside. (If necessary, use a small screwdriver
to carefully pry each boom corner.)
Remove Screw and
Remove Cover
Illustration 1—SAE-1011/1012 Cover and Board Removal
Unsnap Board
and Remove
NOTE: The IEI-1011 LCD display module (used
with the SAE-1001/1051 models for
conguration) does not apply to the SAE1011/1012/1062 models since they each have
permanent LCD displays. The display of
the SAE-1011, however, is hidden when its
cover is closed.
NOTE: See the SAE-1011/1012/1062 data sheet for
specications and additional information.
SAE-1011/1012/1062 Carbon Dioxide (CO2) Detectors 1 Installation Guide
Illustration 2—SAE-1011/1012 Backplate
3. To access the mounting holes, CAREFULLY
remove the circuit board from the base by gently
pressing the enclosure base to unsnap the latch
near the boom edge and lifting the circuit board
from the backplate.
CAUTION
Follow proper electrostatic discharge procedures
when handling the circuit board and be careful to
not touch the sensors.
4. Set the circuit board aside until the base is
mounted on the wall.
5. Aach the universal backplate/base directly to
a standard electrical box using two screws. (See
Illustration 2.)
6. After the base is secured, pull the wires through
the wiring hole in the center of the circuit board
and then reinstall the board in the enclosure base.
Ensure the circuit board is snapped into the base
securely and correctly.
7. After wiring, conguring, and testing the unit,
reinstall the cover and screw.
SAE-1062 Duct Mount
1. Cut a 1-1/4" hole in the duct for the air sampling
tube.
2. Insert the probe into the hole and mark the
enclosure mounting holes. (See Illustration 4.)
3. Remove the unit and drill the four mounting
holes. (Clean all drilled holes of debris before
mounting the device.)
4. Mount the enclosure to the duct with four sheet
metal screws such that the duct air ow is parallel with the vent holes in the probe (i.e., air ows
directly into the probe holes). To prevent air
leaks, ensure the gasket is compressed around
the probe between the device enclosure and the
air duct.
5. Open the cover by removing the two screws and
releasing the latch. (See Illustration 3.)
6. Aach conduit to the conduit opening.
7. Feed wires through the conduit opening, and
connect to the terminals according to the wiring
instructions.
8. After wiring, plug the conduit with plumber’s
puy, painter’s puy, caulk, or other sealant to
prevent air inltration from aecting accuracy of
the duct readings.
9. Check that the rubber gasket is placed correctly
between the enclosure and cover.
Conduit Opening
Latch
Security Screws
Illustration 3—SAE-1062 Enclosure
The duct type sensor installs on the outside of a
return air duct with the sampling tube inserted into
the duct.
Choose a mounting location in a straight section of
a return air duct. Mount at least 5 feet (or 7.5 duct
diameters) from corners or other items that may
cause disturbances in the air ow. Avoid areas prone
to vibration or rapid temperature changes.
10. After wiring, conguring, and testing the unit,
close and latch the cover. Secure it with the two
screws.
Illustration 4—SAE-1062 Mounting Dimensions
SAE-1011/1012/1062 Carbon Dioxide (CO2) Detectors 2 Installation Guide
Wiring
Use 22 AWG shielded wiring for connections. Do not
locate device wires in the same conduit with wiring
used to supply inductive loads.
1. Connect the positive DC voltage, or the hot/
phase side of the AC voltage, to the terminal
marked POWER (but do not apply power until
all wiring is completed). (See Illustrations 5 and
6.)
2. Connect the power supply common to the
terminal marked COM. The device is reverse
voltage protected and will not operate if
connected backwards.
NOTE: The detectors have a half-wave power
supply with the common the same as the
output signal common. If several units are
connected to one power supply, output
signals share the same signal common.
However, KMC recommends using a
separate transformer for each device.
CAUTION
Use caution when grounding the secondary of an
AC transformer, or when wiring multiple devices,
to ensure that the circuit ground point is the same
on all devices and the controller. See Application
Note AN0604D “Tips for connecting 24-volt power”
available from the KMC Controls web site or in the
SP-022 Digital Designer Guide.
3. On the Output switch, select the desired analog
signal output as either current (4–20 mA) or
voltage (0–5 VDC is the default, but 0–10 VDC is
selectable through the menu). Using the defaults,
4–20 mA or 0–5 VDC correspond linearly to
0–2000 ppm of CO
.
2
CAUTION
The 4-20 mA current output signal operates in the
active mode and does not require a loop power
supply. The signal current is generated by the SAE1000 series detector and must not be connected to a
powered input or device damage will result.
4. Set the input jumpers/pull-up resistors on the
connected controller for the desired active
voltage or current according to the controller’s
instructions and connect the detector’s output to
the controller’s input.
5. The SAE-1012 (only) has a form “A” Normally
Open (NO) SPST relay. The relay output is
completely isolated from other circuitry. Wire it to
the desired circuit.
NOTE: Do NOT remove the rubber caps from
the calibration ports on the sensor except
during calibration.
NOTE: See also Application Note AN0504L
“Connecting inputs and outputs to KMC
controllers” available from the KMC
Controls web site or in the SP-022 Digital
Designer Guide.
Output Type
Switch
4–20
mA, 0–5
VDC, or
0–10 VDC
Output
Common
+24 VDC
or ~ (hot/
phase)
24 VAC
Power
Illustration 5—SAE-1011/1012 Space Sensor Board
SAE-1011/1012/1062 Carbon Dioxide (CO2) Detectors 3 Installation Guide
Configuration
Buttons
SAE-1012
Normally
Open,
Form A
(SPST)
Relay
Calibration Ports
Calibration
Ports
LCD
Display
Ribbon
Cable
Connector
Illustration 6—SAE-1062 Duct Sensor Board
+24 VDC
or ~ (hot/
phase)
24 VAC
Power
Common
4–20
mA, 0–5
VDC, or
0–10 VDC
Output
Output Type SwitchConfiguration Buttons
Set-Up
Warm-Up
1. Verify that the detector is properly wired, all
connections are tight, and the Output switch is in
the correct mA or Volt position.
2. Apply power.
The CO
sensor chamber light will ash on and o.
2
The LCD display will indicate the software version
number, the output signal type, the relay setpoint
(SAE-1012 only), and the CO
measurement range.
2
During the warm-up (of less than two minutes),
the output is xed at representing 500 ppm. After
the warm-up period the sensor will begin reading
the CO2 level, output the correct analog signal, and
display the value on the LCD.
During normal operation, the sensor updates the
output and display every 4 seconds.
Menu Configuration
The menu is controlled by pressing buons on the
circuit board:
• Press and release the MENU buon to enter
the conguration menu. Then press the MENU
buon to step through the selections.
• Use the ROLL buons to make changes.
• No values are saved or changed until you press
the SAVE key. The SAVE buon saves the cur-
rent seing to memory and advances to the next
Menu item.
While in normal operation, to enter the conguration menu, press the MENU buon:
1. OUT_HIGH 2000 PPM: (Default CO
range is 0–2000 ppm.) The span can be changed
from 1,000 to 7,500 ppm measured in 500 ppm
increments. For maximum accuracy in typical
applications, a narrower (e.g., the default) range
is recommended.
PresstheMENUbuon.
2. ALTITUDE 0FT: (Default altitude is 0 feet.) The
range is 0 to 5,000 feet measured in 500-foot
increments. Change for local altitude correction
for maximum accuracy. (Altitude/elevation for
any particular location can be found at such
sources as www.earthtools.org.)
PresstheMENUbuon.
level
2
3. AUTO_CAL ON: (Default is ON.) This corrects
sensor drift to beer than ± 10 ppm per year.
ON is recommended for locations where CO
2
levels will be close to 400 ppm at least once a
day. If a building is continuously occupied for 24
hours, and the CO2 level is fairly constant, then
this should be set to OFF. (See the Calibration
section!)
PresstheMENUbuon.
4. RELAY SP 1000 PPM: (Relay trip setpoint default
is 1,000 ppm.) The range is 500 to 5,000 ppm
measured in 100 ppm increments. (For SAE-1012
only.)
PresstheMENUbuon.
5. RELAY HY 50 PPM: (Relay hysteresis
“deadband” default is 50 ppm.) The range is 25 to
200 ppm measured in 25 ppm increments.
PresstheMENUbuon.
6. RELAY TEST OFF: (Relay status default is OFF.)
For testing purposes, use the ROLL buon to
toggle the relay ON or OFF.
PresstheMENUbuon.
7. OUT TYPE 0-5 VDC: (Voltage output default
is 0–5 VDC.) Use the ROLL buon to toggle 0–5
VDC or 0–10 VDC. If the switch is set to mA, then
4-20 mA is displayed.
PresstheMENUbuon.
8. OUTPUT TEST OFF: (Default is OFF.) For
testing purposes, use the ROLL buon to toggle
the output OFF (for normal operation), MIN
(minimum output), or MAX (maximum output).
PresstheMENUbuon.
9. CALIBRAT 1000 PPM: Used in calibration. See
the Calibration section.
PresstheMENUbuon.
10. BACKLIGHT ENABLE: (Default is ENABLED.)
When enabled, the backlight is always on; when
disabled, it never illuminates.
PresstheMENUbuon.
11. RESTORE DEFAULTS: Press the SAVE key to
restore all the original factory seings.
PresstheMENUbuon.
12. MENU EXIT: Press the SAVE buon to exit the
menu and return to normal operation or MENU
to repeat the menu.
SAE-1011/1012/1062 Carbon Dioxide (CO2) Detectors 4 Installation Guide
Calibration
CO2 Self-Calibration
NOTE: After power is rst applied, the sensor
goes through a warm-up. Until warm-up is
complete, the sensor count will display 500
ppm.
These self-calibrating detectors use the sensor’s onboard microprocessor to remember the lowest CO
2
concentration measured in a 24 hour period. The sensor assumes this low point is at outside levels. (The
smart sensor discounts periodic elevated readings
that might occur if, for example, a space was used 24
hours per day over a few days.)
After collecting 14 days worth of low concentration
points, the sensor performs a statistical analysis comparing sensor readings to background levels. If there
have been any small changes that could be aributable to sensor drift, a small correction factor is made
to the sensor calibration to adjust for this change.
Autocalibration corrects sensor drift to beer than
±10 ppm per year.
If a space does not experience a periodic drop to
outside levels (e.g., where occupancy is 24 hours, 7
days/week), the self-calibration software should be
deactivated. If the software has been deactivated
(via menu buons), calibration may be required
every two to three years.
NOTE: To comply with CA Title 24, Section
121(c), as well as sub-paragraph 4.F that
species accuracy will be maintained
within tolerance for a minimum of 5 years
without recalibration, autocalibration must
be ON and the sensor must be in a zone
that experiences periodic drops to outside
levels.
CO2 Calibration with Gas
Calibration with gas requires a bole of 1000 ppm
CO
gas, a tank pressure regulator with ow restric-
2
NOTE: Because of the Automatic Calibration
Mode and other technology incorporated
into these detectors, only a single point
1000 ppm calibration is required to meet
specied accuracy.
NOTE: The detector must be operating normally
for at least ve minutes before applying gas
to it.
1. Turn the regulator On/O knob fully O, aach
it to the 1000 ppm CO
gas bole, and rmly
2
tighten it by hand.
CAUTION
Strong shock or vibration can affect calibration.
2. Remove the cover of the SAE-1011/1012/1062 to
expose the gas sensor chamber, gently remove
the cap from (only) one port on the chamber,
and connect the tubing from the regulator to that
port. (The tubing can be connected to either port.)
3. Ensure the device has been operating normally
for at least ve minutes before applying gas, and
slowly turn the valve knob on the regulator to let
the gas begin owing.
4. The regulator will restrict the ow rate to the
specied 100 ml/min. After a brief period the gas
will ow into the chamber and the CO
on the LCD will begin to approach 1000 ppm.
Wait 1 to 2 minutes until the CO2 reading stabilizes.
5. Enter the Setup menu and use the MENU key to
advance to Calibrat 1000 PPM. Press and hold
the SAVE key for 2 seconds and the display will
change to Waiting Calibrat then to Waiting 5
minute to indicate that the process of reprogramming the internal calibration seing is taking
place.
6. This calibration process takes about 5 minutes
and the LCD will count down the minutes. Do
not disturb the unit or the gas ow during this
period. When calibration is complete the unit will
display Calibrat Done. Press the SAVE key to
return to normal operation
7. Shut o the gas, disconnect the tubing, replace
the cap on the sensor chamber, and close the
cover.
Signal Output Calibration
Testing and calibration of output voltage/current is
available through the set-up and output test menus.
See the Set-Up section.
reading
2
SAE-1011/1012/1062 Carbon Dioxide (CO2) Detectors 5 Installation Guide
Maintenance
Specifications
Careful installation will also ensure long-term reliability and performance. Remove dust as necessary
from holes. Clean with a soft, damp cloth and mild
soap.
Troubleshooting Tips
• During setup of an SAE-1012, if menu items
concerning the relay disappear after a change
has been saved, cycle the power to the device.
• If signal output and/or ppm reading is not
what is expected initially, the output is xed at
representing 500 ppm during warm-up. (It was 0
ppm in the older SAE-1001/1002/1051s.) After the
warm-up period the sensor will begin reading the
CO
level, output the correct analog signal, and
2
display the value on the LCD.
Accessories
XEE-6111-050 Transformer, 120-
to-24 VAC, 50 VA,
single-hub
XEE-6112-050 Transformer, 120-
to-24 VAC, 50 VA,
dual-hub
Models
SAE-1011* Space CO2 sensor, with hidden
LCD display (replaces older
SAE-1001)
SAE-1012** Space CO
relay (replaces older SAE-1002)
SAE-1062 Duct CO
SAE-1051)
sensor, with SPST
2
sensor (replaces older
2
Power Supply 20–28 VAC/VDC (non-isolated
half-wave rectied)
Consumption 100 mA max. @ 24 VDC, 185
mA max. @ 24 VAC (with all
options)
Wiring Connections Screw terminal block (14–22
AWG)
Output Signal 4–20 mA active (sourcing), 0–5
VDC, or 0–10 VDC
Output Drive Capability 550 ohm max. for cur-
rent output, 10K ohm min. for
voltage output
Relay Output (SAE-1012 only)
Conguration One form “A” contact (NO
SPST), 2 A @ 140 VAC, 2 A @ 30
VDC, power factor = 1
Trip Point 500 to 5,000 ppm, congurable
in 100 ppm increments
Hysteresis/Deadband 25 to 200 ppm, congu-
rable in 25 ppm increments
Monitor Range 0–2000 ppm (factory default)
congurable from 0–7500 (in
500 ppm increments)
Standard Accuracy ±75 ppm @ 1000 ppm @ 72°
F (22° C) when compared to
certied calibration gas
Altitude Correction Congurable from 0–5000 ft.
Response Time < 2 minutes for 90% step change
Warm-up Time < 2 minutes
Coverage Area 1000 sq. ft (100 sq. m) typical
Operation Conditions 32–122° F (0–50° C), 0–95%
RH non-condensing
*NOTE: All models have an LCD display, but the
one inside the SAE-1011 is hidden from
view when the cover is closed.
**NOTE: Only the SAE-1012 has a relay.
NOTE: For additional specications, see the SAE-
1011/1012/1062 data sheet.
Important Notices
The material in this document is for information
purposes only. The contents and the product it
describes are subject to change without notice.
KMC Controls, Inc. makes no representations or
warranties with respect to this document. In no event
shall KMC Controls, Inc. be liable for any damages,
direct or incidental, arising out of or related to the
use of this document.
SAE-1011/1012/1062 Carbon Dioxide (CO2) Detectors 6 Installation Guide
© 2014 KMC Controls, Inc. 717-019-46B
KMC Controls, Inc.
19476 Industrial Drive
New Paris, IN 46553
574.831.5250
www.kmccontrols.com
info@kmccontrols.com
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