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Home > Gas Detection > Fixed Point Gas Detection Systems > E12-41 CO2 Transmitter
Model E12-41 Carbon Dioxide Transmitter from Analytical Technology
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Carbon Dioxide is a widely used industrial gas that is relatively inert and non toxic. However, high levels of CO2 can displace enough oxygen in a confined space to create an immediate hazard to personnel. The hazard exists mainly in carbon dioxide cylinder storage areas or in areas where CO2 might leak from process piping or combustion system exhausts.
Because carbon dioxide is a very stable gas, an infrared optical sensor is the best choice for reliable measurement. The IR sensor detects CO2 by measuring the amount of infrared energy absorbed by the gas over a specific optical path. The Model E12-41 CO2
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Transmitter employs a non-dispervice infrared (NDIR) sensing system that is stable over long periods of time. All that is needed is zero adjustment every few months for accurate and trouble free operation. And the transmitter is easy to interface with ATI's Series B14 alarm modules to provide a complete CO2 alarm system when needed.
E12-41 transmitters are available in two version, one for ppm level measurements and one for percent levels. Sensors are available for either diffusion mode for ppm measurements or with tubing connection for flow through applications when measuring either percent or ppm levels. Sample pumping systems can also be supplied if needed. For almost any carbon dioxide monitoring requirement, the E12-41 provides a simple and economical solution.
Specifications
| Sensor Type |
Non dispersive infrared (NDIR) |
| Range |
0-2,000 ppm, 0-3,000 ppm or 0-5,000 ppm,
0-1%, 0-3%, 0-10%, 0-30% or 0-100% |
| Accuracy |
+/- 2% of span |
| Electronic Repeatability |
+/- 0.3% of zero |
| +/- 1.5% of span |
| Response Time |
T90 = 10 seconds for flow systems, switch selectable sampling |
| Sampling Mode |
Diffusion or pumped sample for ppm ranges, pumped sample only for percent ranges |
| Output |
0-20 or 4-20 mA, 500 ohms maximum |
| Power |
24 VDC, 300 mA maximum |
| Temperature Limits |
0-45°C |
| Humidity |
0-95% non condensing |
| Enclosure |
NEMA 4X for pumped sample system,
NEMA 1 or diffusion system |
| Size |
9" x 5.5" x 3.6" |
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