KMC Controls SAE-1062 - Manual (Page 3)

SAE-1011/1012/1062 Carbon Dioxide (CO
2
) Detectors 3 Installation Guide
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 SAE-
1000 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.
Wiring
Common
SAE-1012
Normally
Open,
Form A
(SPST)
Relay
Calibration Ports
Output Type
Switch Configuration
Buttons
Illustration 5—SAE-1011/1012 Space Sensor Board
Common
4–20
mA, 0–5
VDC, or
0–10 VDC
Output
+24 VDC
or ~ (hot/
phase)
24 VAC
Power
Illustration 6—SAE-1062 Duct Sensor Board
Calibration
Ports
Output Type Switch Configuration Buttons
LCD
Display
Ribbon
Cable
Connector
4–20
mA, 0–5
VDC, or
0–10 VDC
Output
+24 VDC
or ~ (hot/
phase)
24 VAC
Power