TELAIRE 8000-R Series CO2 and Temperature Sensor with Relay

Installing the Sensor

WARNING!
Before performing service or maintenance operations on the systems, turn OFF main power switches to the unit. Electric shock can cause personal injury. Please read and follow the wiring instructions precisely; mis-wiring may cause permanent damage to the product.

Basic Installation

1. Separate the case into its front and rear sections.
2. Secure the rear section of the case to the wall or junction box using the supplied screws, and make necessary wire connections.
3. Select Voltage or Current output option and Voltage range (0-10 V or 0-5 V) using the SW1, switches #1 and #2 as shown on the internal label (Figure 1 and Table 1).
   Note : SW1 controls both CO2 and Temperature outputs simultaneously.
   Factory default setting is Voltage outputs 0-10V.
   Table 1: Voltage and Current Output Options** Switch #1| Switch

   2| Configuration**

   ---|---|---
   Down, Low| Down, Low| Factory default setting

CO2 0-10 V/0 – measuring range Temperature 0-10 V/ 0 – 50°C

Up, High| Down, Low| CO2 0-5V/0 – measuring range

Temperature 0-5 V/ 0 – 50°C

Down, Low| Up, High| CO2 4-20 mA/0 – measuring range

Temperature 4-20 mA/ 0 – 50°C

Up, High| Up, High| RESERVED
4. Select CO2 relay threshold settings using SW1, switches #3 and #4.
Table 2: Relay Settings****

Switch #3

| ****

Switch #4

| CO 2 Relay Threshold and Hysteresis
---|---|---
Down, Low| Down, Low| Factory default setting 800 ppm, 100 ppm
Down, Low| Up, High| 1000 ppm, 100 ppm hysteresis
Up, High| Down, Low| 1200 ppm, 100 ppm hysteresis
Up, High| Up, High| 1500 ppm, 100 ppm hysteresis
5. Mount the Controller on the base by aligning the top clips and then securing to the bottom clips. Secure the Ventostat with the supplied set screw. A one-minute stabilization warmup will take place.

Ventostat Wiring Diagrams

WARNING!
Ventostat T8000-R series products have two terminal pins that are connected inside the sensor to a common/ground: pin # 7 on the I/O terminal blocks and pin #2 on the power block. Do NOT connect positive (hot) 24 VAC power line to terminal number 2 of the terminal block.

Caution! The T8000-R Ventostats are either 3-wire or 4-wire type configurations, powered by either AC or DC voltage. They are not 2-wire or loop-powered devices. Wiring the units as 2-wire or loop-powered devices will irreparably damage the sensors and void the warranty.

Note : For temperature measurements, Ventostat T8000-R models contain an active temperature output (terminal pin #6) and a passive thermistor (terminal pins #4 and 5). The passive thermistor is electrically isolated from the other circuitry and should be wired independently from active CO2 and temperature outputs. The thermistor has no connection to the Ventostat common ground. The active temperature output has the same common (ground) as the CO2 output.

Sensing Duct CO2 Concentrations

Duct-Mounting the Enclosures
Ventostat products can be installed inside the return air ductwork, if needed. As an alternative, please consider the T8031 unit. When mounting these products inside the ductwork, seal the hole around the wires and leave the duct insulation in place to prevent condensation which may damage the sensor. Pitot Tube Installation for T8300-R and T8300-D

Install the mounting bracket, then install the pitot tube assembly as follows:
Note : The length of the Tygon® tubing is 6 ft. (1.8 m) with the optional T62892 pitot kit for the T8300. In order to maintain optimum accuracy, the tubing should not be lengthened. If the sensor is mounted closer than 3 ft. (0.9 m) the excess tubing should be shortened to avoid interference with mechanical or moving devices.

1. To mount the pitot tube, drill one 7/8” hole through the duct.
2. Insert the pitot tube and mark the two remaining holes for the mounting screws.
3. Punch or drill the two marked holes.
4. Note the direction of airflow in the duct.
5. Note the marking on the pitot tube flange and insert so that it is properly aligned with the airflow.
6. To ensure an air tight seal, make sure the mounting surface of the duct is clear of dirt or obstructions. Then, attach the pitot tube to the duct with sheet metal screws or rivets.
7. Check the length of the tubing before attaching to the sensor. The tubing should connect without stretching or pulling. If the length is long enough to create a loop or bind in the tubing, it should be shortened.
8. To shorten the tubing, remove the connectors that attach to the sensor and cut the tubing to length.
9. Replace the tubing connectors by using a twisting or screwing motion. Verify the connection is secure.
   Note : If the tubing length has been shortened, be sure the in-line filter is replaced on the pitot tube connector marked with an “H”.

Accessory Enclosures

Model T1508 Duct Mount Enclosure (Aspiration Box)
The T8100-R/T8200-R/T8300-R units can be installed inside a Model 1508 Duct Mount Enclosure.

Model T1552 Outside Air Measurement Enclosure
This NEMA-3R weatherproof enclosure includes thermostat and allows installing the sensor in environments with temperatures down to -40°F.

Model T1505 Harsh Environment Enclosure
For extreme environments where the sensor might be subjected to condensation or water spray such as those found in greenhouses or breweries- NEMA-3R rated.

T8000-R Series Specifications

CO2 Measurements

CO2 Sensing Method

• Non-dispersive infrared (NDIR) absorption
• Gold-plated optics
• Single and dual-channel options
• Patented ABC Logic self calibration algorithm

CO2 Measurement Range

• T8100-R/T8200-R/T8300-R/T8400-R
• 0 to 2000 ppm (0 ppm = 0 V, 4 mA; 2000 ppm = 10/5V, 20 mA)
• T8100-R/T8200-R/T8300-R/T8400-R – 5P models
• 0 to 5000 ppm (0 ppm = 0 V, 4 mA; 5000 ppm = 10/5V, 20 mA)

CO2 Accuracy

• T8100-R/T8300-R Single Channel
• 400-1250 ppm ±30 ppm or 3% of reading, whichever is greater*,**
• 1250-5000 ppm ±5% of reading + 30ppm *, **
• T8200-R/T8400 -R Dual Channel
• ±75 ppm or 10% of reading (whichever is greater)
• *Tolerance based on span gas of ±2%
• ABC Logic not deactivated

CO2 Temperature Dependence

• 0.2% FS per °C (±0.11% per °F)

CO2 Pressure Dependence

• 0.135% of reading per mm Hg

CO2 Stability

• T8100-R/T8300- R Single Channel
• <2% of FS over life of sensor (15 years)
• T8200-R/T8400- R Dual Channel
• <5% of FS or <10% reading annual over life of sensor (10 years)

CO2 Warm-up Time

• < 2 minutes (operational)
• 10 minutes (maximum accuracy

Temperature Measurements

• Active Temperature Measurement Range 0-50°C (32-122°F)
• Active Temperature Accuracy ±1°C from 15 to 30°C (±1.8°F from 59 to 86°F)
• Additional Passive Thermistor Type NTC 10 KOhm, type 2
• Additional Passive Thermistor Accuracy ±1°C from 15 to 30°C (±1.8°F from 59 to 86°F)

Outputs

Analog Outputs for C02 and Temperature

• 0 to 5 V, or 0 to 10 V switch selectable (100 Ω output impedance)
• Or 4 to 20 mA (RL maximum 500 Ω)
• Voltage and current outputs are not available simultaneously
• Digital to analog error ±2%

Relay

• Relay Threshold and Hysteresis are presented in Table 2.
• Normally open and normally close contacts
• Rated load 0.50 A at 125 VAC, 1A 24 VDC
• Contact material Ag + Au-Alloy
• Carry current 2 A
• Max. operating voltage 125 VAC, 60 VDC
• Max. operating current 1 A
• Max. switching capacity 62.50 VA, 30W

Analog Outputs and Relay Update Rate

• Every 5 seconds
• Passive type 2 10kOhm thermistor is isolated from T8000-R series ground

Power Supply Requirements
18-30 VAC RMS, 50/60 Hz, or 18 to 42 VDC, polarity protected

Power Consumption
Typical 0.7 W at nominal voltage of 24V AC RMS

Operating Conditions

• 32°F to 122°F (0°C to 50°C)
• 0 to 95% RH, non-condensing

Storage Conditions
-40°F to 158°F (-40°C to 70°C)

Flammability Classification
UL94 5VA

Certifications
CE, RoHS and REACH compliant

ABC Logic™ Self Calibration System
ABC Logic™ (Automatic Background Calibration) self calibration allows the sensor to continually recalibrate itself when the indoor concentrations drop to outside levels while the building is unoccupied. Generally a building must be regularly unoccupied for 4 hours or more for this self-calibration system to operate properly. Under these conditions, ABC Logic™ should maintain sensor calibration over the lifetime of the sensor. The ABC Logic™ should be turned OFF where a building is continuously occupied 24 hours per day, or where there could be significant sources of non-occupant related CO2 such as greenhouses, breweries and other industrial and food processing applications.

Warranty/Other

Warranty

18 months parts and labor
This product is covered by one or more of the following patents:

• 5,650,624 / 5,721,430 / 5,444,249 / 5,747,808 / 5,834,777 / 5,163,332 /
• 5,340,986 / 5,502,308 / 6,344,798 / 6,023,069 / 5,370,114 / 5,601,079 /
• 5,691,704 / 5,767,776 / 5,966,077 / 6,107,925 / 5,798,700 / 5,945,924 /
• 5,592,147 / 6,255,653 / 6,250,133 / 6,285,290

Warranty Repairs

Amphenol Thermometrics, Inc. will repair Telaire product that fails to meet the terms provided for in the Return and Warranty Policy Statement (See, http://www.amphenol-sensors.com ).Warranty period shall start from date of manufacture and be based on product category and type of equipment as specified in Table 1: Product Warranty Periods. For all warranty repairs,Amphenol Thermometrics, Inc. will bear all product repair parts, labor, and standard ground shipping charges.

Customer Support Centers

U.S.A.
Sales and Services
(Repair/Calibration):
Amphenol Thermometrics, Inc.
St Marys Center
967 Windfall Road
St Marys, Pennsylvania 15857
U.S.A.
T: +1814-834-9140
F: +1814-781-7969

U.K.
Sales and Service:
Amphenol Thermometrics (U.K.) Limited
Crown Industrial Estate Priorswood Road
Taunton, TA2 8QY, UK
T: +44 1823-335-200

Brazil
Sales and Service
Amphenol TFC DO Brazil LTDA
Rodovia Governador Adhemar
Pereira de Barros KM 121,5 S/N
13098-396 Campinas
Sao Paulo, Brazil

U.S.A.
Technical Support:
Amphenol Thermometrics, Inc.
St Marys Center
967 Windfall Road
St Marys, Pennsylvania 15857
U.S.A.
T: +1814-834-9140
F: +1814-781-7969

Or
Amphenol Advanced Sensors
6860 Cortona Dr., Suite B
Goleta, CA 93117

China:
Amphenol (Changzhou)
Connector Systems
305 Room, 5D
Jintong Industrial Park
Wujin, Changzhou, Jiangsu, China
T:+86 519 8831 8080 ext. 50087
F:+86 519 8831 2601
www.telaire.com

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