CO2/T/.. Series Sensors Data Sheet

CO2/T/.. Series Sensors Data Sheet
Data Sheet
CO2/T/..
CO2, Temperature, Humidity Sensors
CO2/T/.. Series Sensors
Description
Features
The CO2/T/.. series sensors monitor the carbon dioxide
concentration and temperature of the air. The range consists of
duct and space sensors.
▪▪ Low cost
▪▪ High quality thermistor temperature sensor
▪▪ Humidity monitoring option for space sensor
▪▪ Optional digital display for space sensor
▪▪ IP67 housing (duct sensor)
▪▪ Quarter turn quick release lid (duct sensor)
▪▪ Two part terminals to facilitate wiring
▪▪ 24 Vac/dc supply
▪▪ Adjustable depth duct mounting flange option
The space sensors have additional options of humidity
monitoring and a 4 digit display. The display will show the
measured values in succession.
The duct sensor has a quick-release lid to facilitate installation.
Physical
CO2/TD
12 mm diam (0.75”)
filter cap
94 mm (3.7”)
33 mm
(1.3”)
CO2/T/D
Trend Control Systems
Horsham, UK
air inlet for CO2 sensing
258 mm (10.16”)
M16 gland
57 mm
(2.74”)
CO2/T/../S
ACC/FLANGE/12MM/5
85 mm (3.35”)
centres
4 screws supplied on a 45mm (1.77”) circle
screw supplied
57 mm (2.24”)
86 mm (3.39”)
105 mm (4.13”)
97 mm (3.82”)
foam gasket
Display
option
86 mm (3.39”)
26 mm
(1.02”)
foam washer
12 mm clamp
24 mm (0.94”)
CO2/T/.. Series Sensors Data Sheet TA201169 Issue 5 draft 2, 13-Dec-20131
CO2/T/..
Data Sheet
FUNCTIONALITY
The CO2/T.. series carbon dioxide and temperature sensors
can be used for a wide range of HVAC applications, operating
over a 0 to 2000 ppm concentration CO2 range. The CO2 sensor
offers an accuracy of ±50 ppm +2% of measured value.
For the CO2/T/D duct sensor, the temperature working range
is -20 °C to +60 °C (-4 to +140 °F) utilising a 10 kohm at 25
°C thermistor temperature sensing element. Recommended
scaling is given for 0 °C to +40 °C (32 to +104 °F).
For the CO2/T/../S space sensor, the temperature measurement
range is 0 °C to +40 °C (32 to +104 °F) utilising a 10 kohm at 25
°C (77 °F) thermistor temperature sensing element. The output
signal is 0 to 10 V corresponding to 0 to +40 °C (32 to +104 °F)
with an accuracy of ±3 °C (±5.5 °F).
The humidity sensor option on the CO2/T/../S has a measurement
range of 0 to 95 %RH range with ±3 %RH accuracy over 30 to
70 %RH, and ±5 %RH accuracy over 10 to 90 %RH. The output
signal is 0 to 10 V corresponding to 0 to 100 %RH.
The optional 4 digit display will alternate between CO2
concentration (ppm) and temperature (°C). If the humidity
option is fitted (CO2/T/H/DISP/S only) it will alternate between
CO2 concentration, temperature, and humidity (%RH).
Input Channels and Sensor Scaling
The input channel must be set to the appropriate input type
(see controller documentation for details) and the sensor type
module must be set up with the correct scaling.
The recommended method of setting the sensor scaling is to
use the ‘Unique Sensor Reference’ provided, see below for
details.
The scaling parameters used by SET can be seen when the
sensor type is configured. If this is not suitable you can create
your own sensor scaling using SET.
Carbon dioxide concentration: The input channel used
should be set for voltage (V), and sensor scaling set as below.
Controller
Unique Sensor Reference
IQ3, IQ4, IQeco, IQ2 >v2.1 C02 V
IQ1, IQ2 <v2.0
Refer to the IQ Configuration
Manual (90-1533)
Temperature: The input channel used should be set for voltage
(V) for CO2/T/./H/S, and Thermistor (T) for C02/T/D, and sensor
the scaling set as below.
CO2/T/./H/S
Controller
Unique Sensor Reference
IQ3, IQ4, IQeco, IQ2 >v2.1 Temp V 0+40 for value in °C
Temp V +32+40 F for value in °F
IQ1, IQ2 <v2.0
Refer to the IQ Configuration
Manual (90-1533)
C02/T/D
Controller
Unique Sensor Reference
IQ3, IQ4, IQeco, IQ2 >v2.1 Thermistor HTST DT for value
in °C
Thermistor HTST DT F for value
in °F
IQ1, IQ2 <v2.0
Refer to the IQ Configuration
Manual (90-1533)
Humidity: The input channel used should be set for voltage (V),
and sensor scaling set as below.
Controller
Unique Sensor Reference
IQ3, IQ4, IQeco, IQ2 >v2.1 Humidity V
IQ1, IQ2 <v2.0
Refer to the IQ Configuration
Manual (90-1533)
INSTALLATION
CO2/T/../S
The sensor housing consists of a front panel and a backplate.
The backplate can be separated from the front panel by inserting
a screwdriver in the bottom slot and twisting.
Choose an accessible location for the sensor where the
surrounding air temperature is representative of the room. The
backplate is designed so that it can be mounted on a back box
or a standard recessed wall box, or surface mounted with minitrunking by using a knockout in one of the sensor’s side walls.
35 mm (1.38”)
Choosing location
Mounting sensor (via two screws - minimum)
Connecting terminals
Assembling sensor unit
Setting up IQ input channels to voltage (V) for CO2
concentration, temperature, and humidity (if option
fitted).
Configuring IQ sensor modules
Testing
35 mm (1.38”)
The installation involves:
60 mm (2.36”)
Full installation details are given in the CO2/T/../S Installation
Instructions (TG201171).
2
CO2/T/.. Series Sensors Data Sheet TA201169 Issue 5 draft 2, 13-Dec-2013
Data Sheet
CO2/T/..
CO2/T/D
Direct Mounting
Choose an accessible location where the sensor element will
lie in the airstream to be measured. Ensure that there is no
stratification in the airstream being measured (i.e. downstream
of mixing dampers, heating coils, cooling coils). Mount the probe
in the duct by screwing the sensor box directly onto the duct. It
should be mounted in the orientation indicated on the label on
the side of the unit so that the air flows into and out of the inlet/
outlet slots. The probe requires a 15 mm (0.59”) hole cut into the
duct. The sensor box may be screwed directly to the duct using
2 screws at 85 mm (3.35”) centres. The installation involves:
Choosing location
Drilling sensor probe hole
Drilling fixing holes
Mounting sensor on prepared location
Removing sensor lid
Feeding IQ cables through gland
Wiring cables
Replacing sensor lid
Setting up IQ input channels to voltage (V) for CO2
concentration and to thermistor (T) for temperature.
Configuring IQ sensor modules
Testing sensor
Made in Austria
CO2/T/D
IP65
SENCO- 1 1 0 0 0 1
FLOW
Made in Austria
CO2/T/D
IP65
SENCO- 1 1 0 0 0 1
FLOW
2 off No 6
(M3.5) screws
Flange Mounting
15 mm (0.59”)
42.5 mm
(1.67”)
42.5 mm
(1.67”)
The optional mounting flange enables the probe depth to be
adjusted by tightening the flange clamp to secure the position.
It is screwed to the duct using 4 off screws at 45 mm (1.77”)
centres.
Full installation details are given in the CO2/T/D Installation
Instructions (TG201170).
CONNECTIONS
CO2/T/D
24 V Supply
+24 Vac/dc
0V
IQ Controller
}
IN1
0V(1) CO2
IN2
0V(2) Temp.
}
CO2/T/./H/S
Analogue input
channel linked
for Voltage
(V), ensure
correct polarity
Analogue input
channel linked
for Thermistor
(T), polarity
independent
24 V Supply
+24 Vac/dc
0V
V+
GND
CO2
GND
T
H
IQ Controller
}
}
}
IN1
0v(1) CO2
IN2
0v(2) Temp.
IN3
*Hum.
0v(3)
3 analogue
input channels
linked for
Voltage (V),
ensure correct
polarity
The 24 Vac/dc supply should be dedicated, isolated, and greater than 650 mA.
CO2/T/.. Series Sensors Data Sheet TA201169 Issue 5 draft 2, 13-Dec-20133
CO2/T/..
Data Sheet
ORDER codes
CO2/T/D CO2/T/S
CO2/T/DISP/S*
CO2/T/H/S
CO2/T/H/DISP/S* ACC/HTD/FILTER
ACC/FLANGE/12MM/5
Duct carbon dioxide concentration and temperature sensor
Space carbon dioxide concentration and temperature sensor
Space carbon dioxide concentration and temperature sensor with a 4 digit display
Space carbon dioxide concentration, temperature, and humidity sensor
Space carbon dioxide concentration, temperature, and humidity sensor with a 4 digit display
Replacement PTFE membrane filter for duct sensor - pack of 5
Adjustable depth, duct mounting flange - pack of 5
*/DISP/ display option only available with °C units of temperature.
Disposal
WEEE Directive:
At the end of their useful life the packaging,
product, and battery (if fitted) should be disposed
of by a suitable recycling centre.
Do not dispose of with normal household waste.
Do not burn.
specifications
Electrical
CO2 measurement
Power input voltage
Power input current
Working range
Signal
Accuracy
:0 to 2000 ppm CO2 concentration
:0 to 10 V for 0 to 2000 ppm into >10 kohm
:±(50 ppm + 2% of measured value) at
23 °C (73.4 °F) and 1013 mbar
Temperature influence :2 ppm/°C at 0 ppm typical
Pressure influence
:1 ppm/1 mbar at 1000 ppm approx.
(physical effect)
Resolution:0.2 ppm (internal 15 bit), display: 10 ppm
Long-term stability
:20 ppm/year typical
Response time
:t90 < = 250 s
Temperature measurement
Working range
Sensing element
Signal
CO2/T/D
CO2/T/../S
Accuracy
CO2/T/../S
Resolution
CO2/T/../S
:-20 to +60 °C (-4 to +140 °F)
:Trend standard thermistor 10 kohm at 25 °C (77 °F)
:thermistor (resistance)
:0 to 10 V for 0 to +40 °C (32 to 104 °F)
into >10 kohm
:±0.3 °C (±0.54 °F) at 23 °C (79 °F) and
1013 mbar with 24 Vdc supply (±0.55
°C, ±1 °F with 20 to 28 Vdc supply)
:0.005 °C, 0.009 °F (internal 15 bit),
display: 0.1 °C
:24 Vdc (15 to 35 Vdc), 24 Vac (±20%)
:12 mA dc typical (while not measuring)
500 mA dc at 23 °C (77 °F) for 350 ms
(during measurement)
Mechanical
Material CO2/T/D
Enclosure
Probe Filter
Duct mounting flange
Material CO2/T/../S
Enclosure
Dimensions CO2/T/D
Duct probe
:Impact resistant ABS
:Polycarbonate (flammability HB)
:PTFE membrane filter
:Polycarbonate (flammability HB)
:Flame retardant (V0) ABS
:258 mm, 10.16” (including filter) x 12
mm, 0.75” (diameter)
Head
:105 mm (4.13”) x 57 mm (2.24”) x 97
mm (3.82”)
Fixing centres
:85 mm ((3.35”)
Dimensions CO2/T/../S:86 mm (3.39”) x 86 mm (3.39”) x 26
mm (1.02”)
Weight
CO2/T/D
:200 g approximately
CO2/T/../S
:150 g approximately
Connections
:2 part 6 pole screw terminals for 0.2
mm2 to 1.5 mm2 cross section area (24
to 16 AWG) cable
Humidity measurement (CO2/T/H/.../S only)
Environmental
Working range
:0 to 95 %RH (non condensing)
Signal:0 to 10 V for 0 to 100 %RH into >10 kohm
Accuracy
:±3 %RH over range 30 to 70 %RH,
±5 %RH over range 10 to 90 %RH, both
at 23 °C (79 °F) and 1013 mbar
Resolution
:0.01 %RH (internal 15 bit), display: 0.1
%RH
Protection
CO2/T/D
:IP65 except filter cap and air inlet/
outlet
CO2/T/../S:IP20
CE compatibility
:EN61326-1, EN61326-2-3
Storage Temperature :-20 to +60 °C (-4 to +140 °F)
Humidity
:0 to 95 %RH, non condensing
Please send any comments about this or any other Trend technical publication to techpubs@trendcontrols.com
© 2013 Honeywell Technologies Sàrl, ECC Division. All rights reserved. Manufactured for and on behalf of the Environmental and Combustion Controls
Division of Honeywell Technologies Sàrl, Z.A. La Pièce, 16, 1180 Rolle, Switzerland by its Authorized Representative, Trend Control Systems Limited.
Trend Control Systems Limited reserves the right to revise this publication from time to time and make changes to the content hereof without obligation
to notify any person of such revisions or changes.
Trend Control Systems Limited
Albery House, Springfield Road, Horsham, West Sussex, RH12 2PQ, UK. Tel:+44 (0)1403 211888 Fax:+44 (0)1403 241608 www.trendcontrols.com
Trend Control System USA
6670
4
185th
Avenue
NE,
Redmond,
Washington
98052,
USA.
Tel:(425)
869-3900
Fax:(425)
869-8445
www.trend-americas.com
CO2/T/.. Series Sensors Data Sheet TA201169 Issue 5 draft 2, 13-Dec-2013
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