KMC Controls SAE-1062 - Manual (Page 4)

SAE-1011/1012/1062 Carbon Dioxide (CO
2
) Detectors 4 Installation Guide
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
2
sensor chamber light will flash on and off.
The LCD display will indicate the software version
number, the output signal type, the relay setpoint
(SAE-1012 only), and the CO
2
measurement range.
During the warm-up (of less than two minutes),
the output is fixed at representing 500 ppm. After
the warm-up period the sensor will begin reading
the CO
2
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 buttons on the
circuit board:
• Press and release the MENU button to enter
the configuration menu. Then press the MENU
button to step through the selections.
• Use the ROLL buttons to make changes.
• No values are saved or changed until you press
the SAVE key. The SAVE button saves the cur-
rent setting to memory and advances to the next
Menu item.
While in normal operation, to enter the configura-
tion menu, press the MENU button:
1. OUT_HIGH 2000 PPM: (Default CO
2
level
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.
Press the MENU button.
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.)
Press the MENU button.
3. AUTO_CAL ON: (Default is ON.) This corrects
sensor drift to better 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 CO
2
level is fairly constant, then
this should be set to OFF. (See the Calibration
section!)
Press the MENU button.
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.)
Press the MENU button.
5. RELAY HY 50 PPM: (Relay hysteresis
“deadband” default is 50 ppm.) The range is 25 to
200 ppm measured in 25 ppm increments.
Press the MENU button.
6. RELAY TEST OFF: (Relay status default is OFF.)
For testing purposes, use the ROLL button to
toggle the relay ON or OFF.
Press the MENU button.
7. OUT TYPE 0-5 VDC: (Voltage output default
is 0–5 VDC.) Use the ROLL button to toggle 0–5
VDC or 0–10 VDC. If the switch is set to mA, then
4-20 mA is displayed.
Press the MENU button.
8. OUTPUT TEST OFF: (Default is OFF.) For
testing purposes, use the ROLL button to toggle
the output OFF (for normal operation), MIN
(minimum output), or MAX (maximum output).
Press the MENU button.
9. CALIBRAT 1000 PPM: Used in calibration. See
the Calibration section.
Press the MENU button.
10. BACKLIGHT ENABLE: (Default is ENABLED.)
When enabled, the backlight is always on; when
disabled, it never illuminates.
Press the MENU button.
11. RESTORE DEFAULTS: Press the SAVE key to
restore all the original factory settings.
Press the MENU button.
12. MENU EXIT: Press the SAVE button to exit the
menu and return to normal operation or MENU
to repeat the menu.