Reliable in the harshest industrial conditions – the infrared-optical transmitter Dräger PIR 7200 offers drift-free optics for continuous monitoring of carbon dioxide (CO2).
Based on patented innovations, the Dräger PIR 7200 combines
maximum light-efficient optics with a signal-stabilizing 4 beam
technology. The double-compensating construction is characterized by the
greatest possible robustness towards interferences (e.g. dust and dirt
deposits). Due to its non-imaging nature, the measuring signal of the
Dräger PIR 7200 remains unaffected by a partially covered beam. It can
thus be ensured that the instrument fully complies with the requirement
“no false alarms”.
The Dräger PIR 7000 was developed and produced in accordance with SIL standards EN 61508 and EN 50402. For the first time ever, the software of a gas detection device was also assessed – excellent parameters and a SIL 2 certificate from the German TÜV certify the high product quality and reliability of the Dräger PIR 7000: Only two percent
of a SIL 2 budget are utilized by the Dräger PIR 7000. Therefore, there is still much flexibility in the selection of control system and actuators. The Dräger PIR 7000 therefore not only meets the SIL 2
requirements but far surpasses them.
The standard parameterization of the Dräger PIR 7200 is based
on many years of experience. Nonetheless, the device provides the option
of setting many parameters specifically for customers and applications.
A smaller or bigger measuring range as well as configurable special
signals (for fault, beam block warning and maintenance) provide a wide
area of utilization.
The sooner a measurable gas concentration is indicated, the faster counter measures can be initiated. The configurable response mode of the Dräger PIR 7200 can be set to “fast” for this purpose. In this mode, each measurable gas concentration
is indicated within one second. In conjunction with low alarm thresholds, the gas transmitter can contribute to significantly reducing reaction times in the case of an emergency.
Brochure: Explosion protection and gas detection systems (PDF) Explosion hazards mostly flammable gases and vapors are due . Instead, the explosion protection measures it may be preferable to detect them before they become flammable avoiding their ignition .