SEC Signature DIR independent double sample cell optical gas analyzer is designed for non-invasive continuous monitoring of gas. The most durable, environmentally friendly and pollution-resistant self-compensating infrared optical system can provide good measurement accuracy. The analog output conforming to the industrial standard can completely remotely control the alarm signal, fault signal and instrument calibration signal. The analog output of the instrument can be connected with chart recorder, data acquisition system or process control system. SEC Signature DIR measures infrared absorption value according to the principle of molecular vibration. Tune the detector to the infrared signal of the gas or vapor to be analyzed, and determine the wavelength of the absorbed light and the wavelength of the unabsorbed light. The gas concentration is determined by calculating the ratio of the response level of the gas to be analyzed and the reference object. The embedded compensation algorithm makes the full-range signal output very accurate and can maintain the measurement accuracy in the changeable environment. SEC Signature DIR uses a reliable direct reflection optical system without mirrors or other reflective surfaces. Heat all smooth surfaces to overcome measurement errors caused by condensation. Scraggy's corundum optical window protects optical components from corrosion found in many process monitoring applications. Once the device is used to determine gas samples in a specific medium concentration range (one operation), the ordinary calibration only includes one periodic zero adjustment.
SEC 2500 portable programmer emits and receives infrared light from the front of optical room, which is used to establish non-invasive communication between any SEC 2000 equipped with display module. When SEC 2000 communicates with SEC 2500, it must be aimed directly at the display module of the latter, and the acting distance is as far as 15 feet.
Once infrared communication occurs, the handheld programmer can establish communication with any SEC 2000 gas detector on the same RS-485 network. Using infrared connection, data can be exchanged at a transmission rate of 300 baud. There is a jack at the bottom of the programmer, which is used to connect all hardware communication data lines of SEC equipment (part number 147- 1000C). Once communication is established, these hardware devices can be checked, calibrated and replaced by using the touch screen on the SEC 2500 handheld programmer:
SEC 2500 hand-held programmer has passed the certification for use in dangerous places.