SENVA CT1O Series CT1O CO2/Temp Outdoor Owner’s Manual
- June 16, 2024
- SENVA
Table of Contents
**SENVA CT1O Series CT1O CO2/Temp Outdoor Owner’s Manual
**
CT1O CO2/Temp Outdoor
Adjustable for ranges of 2000, 5000, or 10,000 ppm CO2 Field replaceable dual- channel NDIR element Dual 3-wire 4-20mA and 0-5/0-10V (selectable) Rugged gasketed enclosure
DESCRIPTION
Featuring a gold plated dual-channel NDIR sensor for the best accuracy and the highest reliability for your outdoor or greenhouse sensing needs. An optional built-in LCD display makes set up a snap, and a standard solid-state setpoint relay makes demand ventilation simple. Dual 4-20mA and 0-10/5 vdc outputs.
APPLICATIONS
- Controlling ventilation in response to occupancy
- Facilitates compliance with ASHRAE 62.1 standard for air quality
- Outdoor or greenhouse applications
Rugged enclusure
Field replaceable CO2 element for lower total lifetime cost
Made in the USA – Industry best 7-year warranty
FEATURES
- Integrated display and push-button menus for field selectable scale, calibration, and operational modes .
- Dual 4-20mA and 0-5V/0-10V output (jumper selectable)
- Integrated high-reliability solid-state set-point relay is ideal for direct control applications; easy to set up thanks to LCD.
- Non-dispersive infrared sensing element (NDIR)
- Field replaceable dual-channel CO2 sensor
- 15+ year life expectancy on CO2 sensing element
- Industry leading 7-year limited warranty on electronics; NDIR module 3 years
- ±30ppm, ±3% of reading
ORDERING
Enclosure
O=Outdoor
Temperature
- A=None
- B=Transmitter
- C= 100PtRTD
- D=1000PtRTD
- E= 10K Type 2
- F= 10K Type 3
- G=10KW/11K
- H=3K
- 1=2K2
- J=1K8
- K = 20K
- L=100K
Output
- 3-4-20mA,
- 0-5V, 0-10V
- 3-Wire
- Connection
Display
- X= None
- Display
Dual Channel
o order replacement sensor elements, please consult factory. All outdoor CTTO models use dual channel elements for high reliability!
DIMENSIONS
Warning: The datasheet is designed for reference only. Refer to installation instructions that accompany the product and heed all safety instructions. Product improvement is a continuing process at Senva. Changes may occur to products without prior notice.
| Power Supply | 12-30VDC/24VAC(1), 100mA max. | |
|---|---|---|
| Analog Outputs | Dual Analog | 3-wire 4-20mA and 0-5V/0-10V (2) (jumper)0 – 2000 |
or 0 – 5000 ppm (selectable)
Digital Setpoint Output| Programmable| Solid-state, 1A @ 30VAC/DC, N.O.
Sensor Performance| Type| Non-dispersive Infrared (NDIR)
Accuracy| ±30ppm, ±3% of reading (400-2000ppm)
±50ppm, ±5% of reading (2000-5000ppm)
Response time| 60 seconds to 90% reading
Output update rate| 1 second
LCD Menu Setup Parameters| SPH, Setpoint, Hi (On point)| 500ppm to full-scale
(800ppm default)
SPL, Setpoint, Lo (Off point)| 400ppm to full-scale-50 (700ppm default)
SCL, Scaling| 0-2000ppm or 0-5000ppm
(2000ppm default)
ADJ, Adjustment| Offset adjustment +/-250ppm (0 default)
CAL, Calibration mode| Automatic mode ON or OFF (default=ON)
RUN, Run mode| Displays CO2 in ppm
Operating Environment| Temperature
Humidity| -4 to 122F (-20 to 50C)
0-95% non-condensing
Enclosure| Material Dimensions| Polycarbonate; aluminum tube
4.0”h x 4.4”w x 2.1”d
- One side of transformer secondary is connected to signal common. Dedicated transformer is recommended.
- 15-30VDC/24VAC power supply voltage required for 10 volt output.
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