KCOC Duct Mount Wiring Installation Guide

KCOC Duct Mount Wiring Installation Guide
KCOC Series Duct Mount Wiring and Calibration Instructions
1.33
Outputs available in either Voltage (0-10V)
or Current (4-20mA)
t
lecct
Se
Power input
18-30 VDC
18-28 VAC
(polarity matters for VDC only)
1.16
Warning And Alarm Indication
Warning level
Alarm level LED
LED is YELLOW
is RED beeper
Sensors
relay actuates
sounds
(if equipped)
(if equipped)
de
Mo
Not all outputs are used on every unit. See
table below for output assignments.
Locking Set Screws (2x)
CO Calibration Gas Port
CO2
Output 2
CO
KCOC-RH
Output
Sensors
CO2 Calibration Gas Port
Output 1
CO
Output 2
RH
+
OUTPUT
+
OUTPUT
-
1
+
24
-
VAC/VDC
2
RELAY
Relay is
optional and
may not be
present (dry
contact rated
24 VAC, 2A
max)
KCOC-VOC
Output
Sensors
CO2 Calibration Activation
Output 1
CO
Output 2
VOC
KCOC-D
Output
Sensors
Output 1
Calibration Kit
50 ppm
RH
No warning or alarm indication
Sele
Relay contact state
Relay Sense Jumper
No alarm
In alarm
OPEN
OPEN
CLOSED
CLOSED
OPEN
(shorting blaock on only one pin)
CLOSED
(shorting block on both pins)
Sensors
Current
Output
Voltage
Output
1.
Back out set screws along bottom edge of enclosure cover and remove enclosure cover. Only one gas can be calibrated at a time following the procedures
below:
2.
For CO2 calibration, remove dust cover from left-most post. Connect 2000
PPM CO2 calibration gas . Turn on gas and allow to flow one minute before
proceeding to step 3.
ct
Mod
1
3.
Press ‘CO2 CAL’ button for 5 seconds. LED will blink yellow
yellow. Proceed to step
6.
4.
For CO calibration, remove dust cover from right-most post. Connect 25
ppm CO, balance air, calibration gas. Turn on gas and allow to flow one minute before proceeding to step 5.
6
3
2
5.
6.
5
4
For CO calibration, press ‘CO CAL’ button for 5 seconds. LED will blink yellow
yellow.
After 5 minutes the LED will blink green, indicating that the calibration process is completed.
7.
Press and hold the applicable ‘CO2 CAL’ or ‘CO CAL’ button to accept calibration.
The LED will turn solid green after only a few seconds.
8.
At this point it is safe to turn off gas and remove gas tubing from calibration
port.
9.
Warning level
Alarm level
1.75
Analog Output Scaling
CO2 and CO Calibration Procedure
e
Your sensor comes factory-calibrated and does not need to be
calibrated upon initial installation.
Calibration kits are available for
both CO and CO2.
CO
2000 ppm
25 ppm
3.85
Output 1
1000 ppm
CO
VOC
KCOC-CO2
Output
Sensors
CO Calibration Activation
CO2
1.93
All ‘-’ terminals are electrically connected,
but isolated from power supply.
When calibration is complete, replace dust cover(s) on gas calibration port(s).
CO2 ppm
CO ppm
RH %
VOC
4 mA
0
0
0
clean
12 mA
1000
100
50
warning
20 mA
2000
200
100
alarm
0 Volts
0
0
0
clean
5 Volts
1000
100
50
warning
10 Volts
2000
200
100
alarm
5/32
Duct Mounting
Drill pattern
(Dimensions in inches)
Liquid Crystal Display (if equipped)
Mode
Allows user to
switch between
parameters being
displayed.
Align top and bottom latch and
snap lid closed
Select
Allows user to
select which parameter is being
displayed.
Once lid closed, insert set-screws to lock enclosure.
Requires 1/16”Allen Wrench
Introduction
The KCOC Series provides the ultimate in control of
indoor air quality. Parameters sensed include:
1.
2.
3.
4.
Carbon Monoxide (CO)
Carbon Dioxide (CO2)
Relative Humidity (RH)
Volatile Organic Compound (VOC)
A combination of any two of the above parameters
may be sensed by the KCOC Series:
Overall Specification
CARBON MONOXIDE SENSOR (CO)
Parameter
Value
Sensor type
Electrochemical
Measurement range
0 – 200 ppm CO
Accuracy
± 2.5% of full scale
Recommended Calibration
Interval
2 years
Sensor Life
5 years typical
KCOC-RH = CO/RH
KCOC-CO2 = CO/CO2
KCOC-VOC = CO2/VOC
Power Requirements
0 – 50 0C
Actual life depends on ambient humidity & temperature.
Value
Value
18 - 30 VDC or 18 - 28 Vrms AC
2.5 VA (with out VOC sensor)
Power Consumption
4 VA (with VOC sensor)
Operating Temperature Range
CARBON DIOXIDE SENSOR (CO2)
Parameter
Parameter
Comments
0 - 50 0C
Operating Humidity Range
0 - 99% RH, non-condensing
Voltage Output (linear)
0 - 10 VDC full-scale standard
Optional Current Output (linear)
4-20 mA RLOOP < 600 Ω
Storage Temperature
-10 to 60 0C
Dimensions
4.5 x 2.8 x 0.9 inches
Each of the above can be configured for wall or
duct-mounting. Options include a SPDT Relay and
a Liquid Crystal Display (LCD).
Operating Principle
Non-dispersive infrared (NDIR)
Gas Sampling Method
Diffusion
Control outputs are available in Voltage (0-10V) or
Current (4-20mA).
Measurement Range
0-2000 ppm
(Other ranges available by request)
Repeatability
± 20 ppm CO2
Concentrations above 200 ppm CO will always report 200 ppm.
Measurement Accuracy
± 30 ppm ± 2% of reading
Recommended Calibration Interval
5 years
Sensor failure causes the current loop output to less than 4 mA
and the voltage output to full scale.
Warm Up Time
Less than 1 minute
Calibration
ONE Point : Single-button calibration (Patented)
A simple one-point calibration procedure and a
built-in calibration ports make the KCOC simple to
operate and maintain.
Displays and Indicators
The KCOC Series includes a single tri-color LED on
the front panel which illuminates whenever the
unit is operating. This LED indicates:
•
•
•
•
Green -> all sensor/s at normal levels
Yellow -> one or more sensors at Warning
levels
Red -> one or more sensors at Alarm level
Blinking Red -> one or more sensors have
failed
The LCD option adds 4 digit reporting to the front
panel. The display shows the measured:
• CO concentration in parts per million (ppm)
• CO2 concentration in parts per million (ppm)
• Relative Humidity in %
Carbon Monoxide Sensor Notes
VOC Sensor Notes
VOC sensor does not report for the first two hours after power is
applied. During this time display (if present) shows ‘----’.
RELATIVE HUMIDITY SENSOR (RH)
Parameter
Value
Operating Temperature
0 to 50 0C
Measurement Range
0 to 99 % RH
Recovery time after 150 hours of
condensation
10 Seconds
Humidity Hysteresis
± 1 % RH
Recommended Calibration Interval
Does not need calibration
This sensor is broadly responsive to a wide range of volatile organics and can not be used to quantify the specific concentration
of any single compound.
VOLATILE ORGANIC COMPOUND SENSOR (VOC)
Parameter
VOCs detected
Value
Alcohols, aldehydes, ketones, organic acids,
amines, aliphatic and aromatic hydrocarbons
Typical response time
<1 minute to 90% full scale
Warmup time
2 Hours
KCOC Multi-gas sensor
REV 10/28/10
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